)]}'
{
  "log": [
    {
      "commit": "fbf0ca1bf852fe224cec5400a69cd755ddc4ddcb",
      "tree": "c447609eeb8ce7847b76fde5375e04678511ba49",
      "parents": [
        "9612090527526a15832480c48b1f4b39e93e8a35"
      ],
      "author": {
        "name": "Steffen Klassert",
        "email": "steffen.klassert@secunet.com",
        "time": "Wed Mar 28 08:51:03 2012 +0200"
      },
      "committer": {
        "name": "Herbert Xu",
        "email": "herbert@gondor.apana.org.au",
        "time": "Thu Mar 29 19:52:47 2012 +0800"
      },
      "message": "crypto: pcrypt - Use the online cpumask as the default\n\nWe use the active cpumask to determine the superset of cpus\nto use for parallelization. However, the active cpumask is\nfor internal usage of the scheduler and therefore not the\nappropriate cpumask for these purposes. So use the online\ncpumask instead.\n\nReported-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Steffen Klassert \u003csteffen.klassert@secunet.com\u003e\nSigned-off-by: Herbert Xu \u003cherbert@gondor.apana.org.au\u003e\n"
    },
    {
      "commit": "9612090527526a15832480c48b1f4b39e93e8a35",
      "tree": "d34a4459c33251ed9dbcb395eb41dce790b9b75e",
      "parents": [
        "13614e0fb1a8840c134be35c179ff23e23676304"
      ],
      "author": {
        "name": "Steffen Klassert",
        "email": "steffen.klassert@secunet.com",
        "time": "Wed Mar 28 08:44:07 2012 +0200"
      },
      "committer": {
        "name": "Herbert Xu",
        "email": "herbert@gondor.apana.org.au",
        "time": "Thu Mar 29 19:52:46 2012 +0800"
      },
      "message": "padata: Fix cpu hotplug\n\nWe don\u0027t remove the cpu that went offline from our cpumasks\non cpu hotplug. This got lost somewhere along the line, so\nrestore it. This fixes a hang of the padata instance on cpu\nhotplug.\n\nSigned-off-by: Steffen Klassert \u003csteffen.klassert@secunet.com\u003e\nSigned-off-by: Herbert Xu \u003cherbert@gondor.apana.org.au\u003e\n"
    },
    {
      "commit": "13614e0fb1a8840c134be35c179ff23e23676304",
      "tree": "e9fb16b0d3840562ebe5b5a8f2eb6e37f9e26a8d",
      "parents": [
        "107f8bdac992356b3a80d41c9f6ff4399159aa81"
      ],
      "author": {
        "name": "Steffen Klassert",
        "email": "steffen.klassert@secunet.com",
        "time": "Wed Mar 28 08:43:21 2012 +0200"
      },
      "committer": {
        "name": "Herbert Xu",
        "email": "herbert@gondor.apana.org.au",
        "time": "Thu Mar 29 19:52:46 2012 +0800"
      },
      "message": "padata: Use the online cpumask as the default\n\nWe use the active cpumask to determine the superset of cpus\nto use for parallelization. However, the active cpumask is\nfor internal usage of the scheduler and therefore not the\nappropriate cpumask for these purposes. So use the online\ncpumask instead.\n\nReported-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Steffen Klassert \u003csteffen.klassert@secunet.com\u003e\nSigned-off-by: Herbert Xu \u003cherbert@gondor.apana.org.au\u003e\n"
    },
    {
      "commit": "107f8bdac992356b3a80d41c9f6ff4399159aa81",
      "tree": "7eae814e5a38514d12aea5aba0896cb6cf40697e",
      "parents": [
        "6a76a6992341faab0ef31e7d97000e0cf336d0ba"
      ],
      "author": {
        "name": "Steffen Klassert",
        "email": "steffen.klassert@secunet.com",
        "time": "Wed Mar 28 08:42:34 2012 +0200"
      },
      "committer": {
        "name": "Herbert Xu",
        "email": "herbert@gondor.apana.org.au",
        "time": "Thu Mar 29 19:52:45 2012 +0800"
      },
      "message": "padata: Add a reference to the api documentation\n\nAdd a reference to the padata api documentation at Documentation/padata.txt\n\nSuggested-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Steffen Klassert \u003csteffen.klassert@secunet.com\u003e\nSigned-off-by: Herbert Xu \u003cherbert@gondor.apana.org.au\u003e\n"
    },
    {
      "commit": "6a76a6992341faab0ef31e7d97000e0cf336d0ba",
      "tree": "a585bf55b557ad746ff951119feb0a8bd014de08",
      "parents": [
        "d4c6fa73fe984e504d52f3d6bba291fd76fe49f7",
        "ff0a70fe053614e763eb3ac88bfea9c5615fce3b"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 20:19:30 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 20:19:30 2012 -0700"
      },
      "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6\n\nPull crypto fixes from Herbert Xu:\n \"This fixes a build problem where two crypto modules both try to export\n  the same symbols (which shouldn\u0027t have been exported in the first\n  place).\"\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:\n  crypto: twofish-x86_64-3way - module init/exit functions should be static\n  crypto: camellia-x86_64 - module init/exit functions should be static\n"
    },
    {
      "commit": "d4c6fa73fe984e504d52f3d6bba291fd76fe49f7",
      "tree": "47842ddebb2a48cc1513b36fba18835678e2b94e",
      "parents": [
        "aab008db8063364dc3c8ccf4981c21124866b395",
        "4bc25af79ec54b79266148f8c1b84bb1e7ff2621"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 19:59:19 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 20:16:14 2012 -0700"
      },
      "message": "Merge tag \u0027stable/for-linus-3.4-tag\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen\n\nPull xen updates from Konrad Rzeszutek Wilk:\n \"which has three neat features:\n\n   - PV multiconsole support, so that there can be hvc1, hvc2, etc; This\n     can be used in HVM and in PV mode.\n\n   - P-state and C-state power management driver that uploads said power\n     management data to the hypervisor.  It also inhibits cpufreq\n     scaling drivers to load so that only the hypervisor can make power\n     management decisions - fixing a weird perf bug.\n\n     There is one thing in the Kconfig that you won\u0027t like: \"default y\n     if (X86_ACPI_CPUFREQ \u003d y || X86_POWERNOW_K8 \u003d y)\" (note, that it\n     all depends on CONFIG_XEN which depends on CONFIG_PARAVIRT which by\n     default is off).  I\u0027ve a fix to convert that boolean expression\n     into \"default m\" which I am going to post after the cpufreq git\n     pull - as the two patches to make this work depend on a fix in Dave\n     Jones\u0027s tree.\n\n   - Function Level Reset (FLR) support in the Xen PCI backend.\n\n  Fixes:\n\n   - Kconfig dependencies for Xen PV keyboard and video\n   - Compile warnings and constify fixes\n   - Change over to use percpu_xxx instead of this_cpu_xxx\"\n\nFix up trivial conflicts in drivers/tty/hvc/hvc_xen.c due to changes to\na removed commit.\n\n* tag \u0027stable/for-linus-3.4-tag\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:\n  xen kconfig: relax INPUT_XEN_KBDDEV_FRONTEND deps\n  xen/acpi-processor: C and P-state driver that uploads said data to hypervisor.\n  xen: constify all instances of \"struct attribute_group\"\n  xen/xenbus: ignore console/0\n  hvc_xen: introduce HVC_XEN_FRONTEND\n  hvc_xen: implement multiconsole support\n  hvc_xen: support PV on HVM consoles\n  xenbus: don\u0027t free other end details too early\n  xen/enlighten: Expose MWAIT and MWAIT_LEAF if hypervisor OKs it.\n  xen/setup/pm/acpi: Remove the call to boot_option_idle_override.\n  xenbus: address compiler warnings\n  xen: use this_cpu_xxx replace percpu_xxx funcs\n  xen/pciback: Support pci_reset_function, aka FLR or D3 support.\n  pci: Introduce __pci_reset_function_locked to be used when holding device_lock.\n  xen: Utilize the restore_msi_irqs hook.\n"
    },
    {
      "commit": "aab008db8063364dc3c8ccf4981c21124866b395",
      "tree": "72914203f4decb023efdaabd0301a62d742dfa8c",
      "parents": [
        "4f5b1affdda3e0c48cac674182f52004137b0ffc",
        "16c0cfa425b8e1488f7a1873bd112a7a099325f0"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 19:52:47 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 19:52:47 2012 -0700"
      },
      "message": "Merge tag \u0027stable/for-linus-3.4\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/mm\n\nPull cleancache changes from Konrad Rzeszutek Wilk:\n \"This has some patches for the cleancache API that should have been\n  submitted a _long_ time ago.  They are basically cleanups:\n\n   - rename of flush to invalidate\n\n   - moving reporting of statistics into debugfs\n\n   - use __read_mostly as necessary.\n\n  Oh, and also the MAINTAINERS file change.  The files (except the\n  MAINTAINERS file) have been in #linux-next for months now.  The late\n  addition of MAINTAINERS file is a brain-fart on my side - didn\u0027t\n  realize I needed that just until I was typing this up - and I based\n  that patch on v3.3 - so the tree is on top of v3.3.\"\n\n* tag \u0027stable/for-linus-3.4\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/mm:\n  MAINTAINERS: Adding cleancache API to the list.\n  mm: cleancache: Use __read_mostly as appropiate.\n  mm: cleancache: report statistics via debugfs instead of sysfs.\n  mm: zcache/tmem/cleancache: s/flush/invalidate/\n  mm: cleancache: s/flush/invalidate/\n"
    },
    {
      "commit": "4f5b1affdda3e0c48cac674182f52004137b0ffc",
      "tree": "463b738156ee9ddfe7792324e501e523499d1661",
      "parents": [
        "db1417967959569599da2a4bd0ffb93b17ad795f",
        "1762275e7a08e808387999f582430172a02758a5"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 18:20:02 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 18:20:02 2012 -0700"
      },
      "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfin\n\nPull blackfin updates from Bob Liu\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfin: (24 commits)\n  blackfin: clean up string bfin_dma_5xx after rename.\n  blackfin:dma: rename bfin_dma_5xx.c to bfin_dma.c\n  bf548: ssm2602: Add ssm2602 platform data into bf548 ezkit board file.\n  Blackfin: s/#if CONFIG/#ifdef CONFIG/\n  Blackfin: pnav: delete duplicate linux/export.h include\n  bf561: add ppi DLEN macro for 10bits to 16bits\n  arch: blackfin: udpate defconfig\n  Disintegrate asm/system.h for Blackfin [ver #2]\n  arch/blackfin: don\u0027t generate random mac in bfin_get_ether_addr()\n  Blackfin: wire up new process_vm syscalls\n  blackfin: cleanup anomaly workarounds\n  blackfin: update default defconfig\n  blackfin: thread_info: add suspend flag\n  bfin: add bfin_ad73311_machine platform device\n  blackfin: bf537: stamp: update board file for 193x\n  blackfin: kgdb: skip hardware watchpoint test\n  bf548: add ppi interrupt mask and blanking clocks\n  blackfin: bf561: forgot CSYNC in get_core_lock_noflush\n  spi/bfin_spi: drop bits_per_word from client data\n  blackfin: cplb-mpu: fix page mask table overflow\n  ...\n"
    },
    {
      "commit": "db1417967959569599da2a4bd0ffb93b17ad795f",
      "tree": "08751414d5f4a9e264af924154ed3543a8e573a9",
      "parents": [
        "48aab2f79dfc1357c48ce22ff5c989b52a590069",
        "c6da39f26cfe475704ec521723192e520e8f51b8"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 18:15:32 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 18:15:32 2012 -0700"
      },
      "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux\n\nPull s390 patches from Martin Schwidefsky:\n \"The biggest patch is the rework of the smp code, something I wanted to\n  do for some time.  There are some patches for our various dump methods\n  and one new thing: z/VM LGR detection.  LGR stands for linux-guest-\n  relocation and is the guest migration feature of z/VM.  For debugging\n  purposes we keep a log of the systems where a specific guest has lived.\"\n\nFix up trivial conflict in arch/s390/kernel/smp.c due to the scheduler\ncleanup having removed some code next to removed s390 code.\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:\n  [S390] kernel: Pass correct stack for smp_call_ipl_cpu()\n  [S390] Ensure that vmcore_info pointer is never accessed directly\n  [S390] dasd: prevent validate server for offline devices\n  [S390] Remove monolithic build option for zcrypt driver.\n  [S390] stack dump: fix indentation in output\n  [S390] kernel: Add OS info memory interface\n  [S390] Use block_sigmask()\n  [S390] kernel: Add z/VM LGR detection\n  [S390] irq: external interrupt code passing\n  [S390] irq: set __ARCH_IRQ_EXIT_IRQS_DISABLED\n  [S390] zfcpdump: Implement async sdias event processing\n  [S390] Use copy_to_absolute_zero() instead of \"stura/sturg\"\n  [S390] rework idle code\n  [S390] rework smp code\n  [S390] rename lowcore field\n  [S390] Fix gcc 4.6.0 compile warning\n"
    },
    {
      "commit": "48aab2f79dfc1357c48ce22ff5c989b52a590069",
      "tree": "7f690fe147bccc24b7a017845dbe9a99d7978b5f",
      "parents": [
        "f7493e5d9cc10ac97cf1f1579fdc14117460b40b"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 17:01:41 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 17:01:41 2012 -0700"
      },
      "message": "security: optimize avc_audit() common path\n\navc_audit() did a lot of jumping around and had a big stack frame, all\nfor the uncommon case.\n\nSplit up the uncommon case (which we really can\u0027t make go fast anyway)\ninto its own slow function, and mark the conditional branches\nappropriately for the common likely case.\n\nThis causes avc_audit() to no longer show up as one of the hottest\nfunctions on the branch profiles (the new \"perf -b\" thing), and makes\nthe cycle profiles look really nice and dense too.\n\nThe whole audit path is still annoyingly very much one of the biggest\ncosts of name lookup, so these things are worth optimizing for.  I wish\nwe could just tell people to turn it off, but realistically we do need\nit: we just need to make sure that the overhead of the necessary evil is\nas low as possible.\n\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "f7493e5d9cc10ac97cf1f1579fdc14117460b40b",
      "tree": "5c73bd9418b24398b33c5eb2c2fb3ea749d8c631",
      "parents": [
        "989412bbd2835f1475d1528846693eddbac744c8"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 16:10:40 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 16:10:40 2012 -0700"
      },
      "message": "vfs: tidy up sparse warnings in fs/namei.c\n\nWhile doing the fs/namei.c cleanups, I ran sparse on it, and it pointed\nout other large integers and a couple of cases of us using \u00270\u0027 instead\nof the proper \u0027NULL\u0027.\n\nSparse still doesn\u0027t understand some of the conditional locking going\non, but that\u0027s no excuse for not fixing up the trivial stuff.\n\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "989412bbd2835f1475d1528846693eddbac744c8",
      "tree": "192a4fdeeca43951cc69d30fad6b91c6196f9e8c",
      "parents": [
        "1f1e6e523e43e312c0e0d38c09828d53e9f709fc"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 15:58:27 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 15:58:27 2012 -0700"
      },
      "message": "vfs: tidy up fs/namei.c byte-repeat word constants\n\nIn commit commit 1de5b41cd3b2 (\"fs/namei.c: fix warnings on 32-bit\")\nAndrew said that there must be a tidier way of doing this.\n\nThis is that tidier way.\n\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "1f1e6e523e43e312c0e0d38c09828d53e9f709fc",
      "tree": "8bf08328cb84dff0bc7a120a1606547e1938cbbd",
      "parents": [
        "f132c5be05e407a99cf582347a2ae0120acd3ad7"
      ],
      "author": {
        "name": "Randy Dunlap",
        "email": "rdunlap@xenotime.net",
        "time": "Sun Mar 18 21:23:05 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 15:49:18 2012 -0700"
      },
      "message": "fs: fix kernel-doc warnings in dcache.c\n\nFix kernel-doc warnings in fs/dcache.c:\n\n  Warning(fs/dcache.c:1743): No description found for parameter \u0027seqp\u0027\n  Warning(fs/dcache.c:1743): Excess function parameter \u0027seq\u0027 description in \u0027__d_lookup_rcu\u0027\n\nSigned-off-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "f132c5be05e407a99cf582347a2ae0120acd3ad7",
      "tree": "f089bbd244aad5d5686360080f93ee9e8592a39d",
      "parents": [
        "ba331d5decbfe1cc8b1bf10fb7005f4b972c4f0e"
      ],
      "author": {
        "name": "Al Viro",
        "email": "viro@ZenIV.linux.org.uk",
        "time": "Thu Mar 22 21:59:52 2012 +0000"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 15:10:43 2012 -0700"
      },
      "message": "Fix full_name_hash() behaviour when length is a multiple of 8\n\nWe want it to match what hash_name() is doing, which means extra\nmultiply by 9 in this case...\n\nReported-and-Tested-by: Konrad Rzeszutek Wilk \u003ckonrad.wilk@oracle.com\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "ba331d5decbfe1cc8b1bf10fb7005f4b972c4f0e",
      "tree": "af12491d851d3d953f6b482df450045e83368ed9",
      "parents": [
        "09fa30226130652af75152d9010c603c66d46f6e",
        "1898f4426b3863216a9041389b34a3b995883027"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 13:27:02 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 13:27:02 2012 -0700"
      },
      "message": "Merge branch \u0027drm-nouveau-destage\u0027 of git://people.freedesktop.org/~airlied/linux\n\nPull nouveau destaging + Kelper modesetting support from Dave Airlie:\n \"This pull request is unexpected and not something I had mentioned\n  previously.\n\n  So NVIDIA announced new Kepler GPUs this morning, and Ben has killed\n  himself getting modesetting support for them together to have on\n  launch day.  Most of the code to support the new chips has already\n  gone in, however this pull contains a few more pieces along with the\n  final enables so the driver binds to the new Kepler cards.  Its quite\n  amazing that nouveau can support a GPU on its launch day even if its\n  just unaccelerated modesetting, and I\u0027d like to have support in the\n  next kernel.\n\n  In order to sweeten the deal, Ben has also requested nouveau destage\n  and become ABI stable, the only change is the version number bump\n  which he prepared userspace for quite a long time ago.  The driver\n  hasn\u0027t broken ABI since that one big break that caused a lot of fuss.\n\n  It\u0027s also quite a small set of code, and not likely to break anything.\"\n\n* \u0027drm-nouveau-destage\u0027 of git://people.freedesktop.org/~airlied/linux:\n  drm/nouveau/dp: support version 4.0 of DP table\n  drm/nve0/disp: nvidia randomly decided to move the dithering method\n  drm/nve0: initial modesetting support for kepler chipsets\n  drm/nouveau: add bios connector type for dms59\n  drm/nouveau: move out of staging drivers\n  drm/nouveau: bump version to 1.0.0\n  drm/nvd0/disp: ignore clock set if no pclk\n  drm/nouveau: oops, increase channel dispc_vma to 4\n  drm/nouveau: inform userspace of new kernel subchannel requirements\n  drm/nouveau: remove m2mf creation on userspace channels\n  drm/nvc0-/disp: reimplement flip completion method as fifo method\n  drm/nouveau: move fence sequence check to start of loop\n  drm/nouveau: remove subchannel names from places where it doesn\u0027t matter\n  drm/nouveau/ttm: always do buffer moves on kernel channel\n"
    },
    {
      "commit": "09fa30226130652af75152d9010c603c66d46f6e",
      "tree": "26dc4ba7fc66dc0c10e442d81595dd319eef4c75",
      "parents": [
        "be53bfdb8088e9d1924199cc1a96e113756b1075",
        "1b2681ba271c9f5bb66cb0d8ceeaa215fcd218d8"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 13:23:46 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 13:23:46 2012 -0700"
      },
      "message": "Merge branch \u0027drm-radeon-sitn-support\u0027 of git://people.freedesktop.org/~airlied/linux\n\nPull radeon southern islands / trinity support from Dave Airlie:\n \"This is support from AMD for their newest GPU and APUs.  The products\n  called RadeonHD 7xxx, and the Trinity APU series.\n\n  This did come in a bit late, due to some over-complicated AMD internal\n  review process, which from the outside seems unnecessary once the\n  company has decided it wants to support open source.  However as I\n  said previously I\u0027d rather not put the people who\u0027ve got this hw for 3\n  months now being forced to use fglrx on it if there is open code.\n\n  Its pretty well self contained and just plugs into the driver in\n  various places.\"\n\n* \u0027drm-radeon-sitn-support\u0027 of git://people.freedesktop.org/~airlied/linux: (48 commits)\n  drm/radeon/kms: update duallink checks for DCE6\n  drm/radeon/kms: add trinity pci ids\n  drm/radeon/kms: add radeon_asic struct for trinity\n  drm/radeon/kms: add support for ucode loading on trinity (v2)\n  drm/radeon/kms/vm: set vram base offset properly for TN\n  drm/radeon/kms: Update evergreen functions for trinity\n  drm/radeon/kms: cayman gpu init updates for trinity\n  drm/radeon/kms: Add checks for TN in the DP bridge code\n  drm/radeon/kms/DCE6.1: ss is not supported on the internal pplls\n  drm/radeon/kms: disable PPLL0 on DCE6.1 when not in use\n  drm/radeon/kms: Adjust pll picker for DCE6.1\n  drm/radeon/kms: DCE6.1 disp eng pll updates\n  drm/radeon/kms: DCE6.1 watermark updates for TN\n  drm/radeon/kms: no support for internal thermal sensor on TN yet\n  drm/radeon/kms: add trinity (TN) chip family\n  drm/radeon/kms: Add SI pci ids\n  drm/radeon: Update radeon_info_ioctl for SI. (v2)\n  drm/radeon/kms: add radeon_asic struct for SI\n  drm/radeon/kms: add support for compute rings in CS ioctl on SI\n  drm/radeon/kms: fill in startup/shutdown callbacks for SI\n  ...\n"
    },
    {
      "commit": "be53bfdb8088e9d1924199cc1a96e113756b1075",
      "tree": "8c65eb9d82ca4c0f11c17cfdc44d5263820b415b",
      "parents": [
        "b2094ef840697bc8ca5d17a83b7e30fad5f1e9fa",
        "5466c7b1683a23dbbcfb7ee4a71c4f23886001c7"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 13:08:22 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 13:08:22 2012 -0700"
      },
      "message": "Merge branch \u0027drm-next\u0027 of git://people.freedesktop.org/~airlied/linux\n\nPull drm main changes from Dave Airlie:\n \"This is the main drm pull request, I\u0027m probably going to send two more\n  smaller ones, will explain below.\n\n  This contains a patch that is also in the fbdev tree, but it should be\n  the same patch, it added an API for hot unplugging framebuffer\n  devices, and I need that API for a new driver.\n\n  It also contains some changes to the i2c tree which Jean has acked,\n  and one change to moorestown platform stuff in x86.\n\n  Highlights:\n   - new drivers: UDL driver for USB displaylink devices, kms only,\n     should support correct hotplug operations.\n   - core: i2c speedups + better hotplug support, EDID overriding via\n     firmware interface - allows user to load a firmware for a broken\n     monitor/kvm from userspace, it even has documentation for it.\n   - exynos: new HDMI audio + hdmi 1.4 + virtual output driver\n   - gma500: code cleanup\n   - radeon: cleanups, CS optimisations, streamout support and pageflip\n     fix\n   - nouveau: NVD9 displayport support + more reclocking work\n   - i915: re-enabling GMBUS, finish gpu patch (might help hibernation\n     who knows), missed irq fixes, stencil tiling fixes, interlaced\n     support, aliasesd PPGTT support for SNB/IVB, swizzling for SNB/IVB,\n     semaphore fixes\n\n  As well as the usual bunch of cleanups and fixes all over the place.\n\n  I\u0027ve got two things I\u0027d like to merge a bit later:\n\n   a) AMD support for all their new radeonhd 7000 series GPU and APUs.\n      AMD dropped this a bit late due to insane internal review\n      processes, (please AMD just follow Intel and let open source guys\n      ship stuff early) however I don\u0027t want to penalise people who own\n      this hardware (since its been on sale for 3-4 months and GPU hw\n      doesn\u0027t exactly have a lifetime in years) and consign them to\n      using closed drivers for longer than necessary.  The changes are\n      well contained and just plug into the driver new gpu functionality\n      so they should be fairly regression proof.  I just want to give\n      them a bit of a run on the hw AMD kindly sent me.\n\n   b) drm prime/dma-buf interface code.  This is just infrastructure\n      code to expose the dma-buf stuff to drm drivers and to userspace.\n      I\u0027m not planning on pushing any driver support in this cycle\n      (except maybe exynos), but I\u0027d like to get the infrastructure code\n      in so for the next cycle I can start getting the driver support\n      into the individual drivers.  We have started driver support for\n      i915, nouveau and udl along with I think exynos and omap in\n      staging.  However this code relies on the dma-buf tree being\n      pulled into your tree first since it needs the latest interfaces\n      from that tree.  I\u0027ll push to get that tree sent asap.\n\n  (oh and any warnings you see in i915 are gcc\u0027s fault from what anyone\n  can see).\"\n\nFix up trivial conflicts in arch/x86/platform/mrst/mrst.c due to the new\nmsic_thermal_platform_data() thermal function being added next to the\ntc35876x_platform_data() i2c device function..\n\n* \u0027drm-next\u0027 of git://people.freedesktop.org/~airlied/linux: (326 commits)\n  drm/i915: use DDC_ADDR instead of hard-coding it\n  drm/radeon: use DDC_ADDR instead of hard-coding it\n  drm: remove unneeded redefinition of DDC_ADDR\n  drm/exynos: added virtual display driver.\n  drm: allow loading an EDID as firmware to override broken monitor\n  drm/exynos: enable hdmi audio feature\n  drm/exynos: add default pixel format for plane\n  drm/exynos: cleanup exynos_hdmi.h\n  drm/exynos: add is_local member in exynos_drm_subdrv struct\n  drm/exynos: add subdrv open/close functions\n  drm/exynos: remove module of exynos drm subdrv\n  drm/exynos: release pending pageflip events when closed\n  drm/exynos: added new funtion to get/put dma address.\n  drm/exynos: update gem and buffer framework.\n  drm/exynos: added mode_fixup feature and code clean.\n  drm/exynos: add HDMI version 1.4 support\n  drm/exynos: remove exynos_mixer.h\n  gma500: Fix mmap frambuffer\n  drm/radeon: Drop radeon_gem_object_(un)pin.\n  drm/radeon: Restrict offset for legacy display engine.\n  ...\n"
    },
    {
      "commit": "b2094ef840697bc8ca5d17a83b7e30fad5f1e9fa",
      "tree": "64e5f7253b6a85b6d5d36f95c0d3c67c1798918d",
      "parents": [
        "424a6f6ef990b7e9f56f6627bfc6c46b493faeb4",
        "6681bc0deba495fad0d6fb349e40524abd1b1732"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 13:00:13 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 13:00:13 2012 -0700"
      },
      "message": "Merge tag \u0027sound-3.4\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound\n\nPull updates of sound stuff from Takashi Iwai:\n \"Here is the first big update chunk of sound stuff for 3.4-rc1.\n\n  In the common sound infrastructure, there are a few changes for\n  dynamic PCM support (used in ASoC) and a few clean-ups.  Majority of\n  changes are found, as usual, in HD-audio and ASoC.\n\n  Some highlights of HD-audio changes:\n\n   - All the long-standing static quirk codes for Realtek codec were\n     finally removed by fixing and extending the Realtek auto-parser.\n\n   - The mute-LED control is standardized over all HD-audio codec\n     drivers using the extended vmaster hook.\n\n   - The vmaster slave mixer elements are initialized to 0dB as default\n     so that the user won\u0027t be annoyed by the silent output after\n     updates, e.g.  due to the additions of new elements.\n\n   - Other many fix-ups for the misc HD-audio devices.\n\n  In the ASoC side, this is a very active release, including a quite a\n  few framework enhancements.  Some highlights:\n\n   - Support for widgets not associated with a CODEC, an important part\n     of the dynamic PCM framework.\n\n   - A library factoring out the common code shared by dmaengine based\n     DMA drivers contributed by Lars-Peter Clausen.  This will save a\n     lot of code and make it much easier to deploy enhancements to\n     dmaengine.\n\n   - Support for binary controls, used for providing runtime\n     configuration of algorithm coefficients.\n\n   - A new DAPM widget type for regulator supplies allowing drivers for\n     devices that can power down unused supplies while active to do\n     without any per-driver code.\n\n   - DAPM widgets for DAIs, initially giving a speed boost for playback\n     startup and shutdown and also the basis for CODEC\u003c-\u003eCODEC DAI link\n     support.\n\n   - Support for specifying the number of significant bits on audio\n     interfaces, useful for allowing applications to know how much\n     effort to put into generating data for a larger sample format.\n\n   - Conversion of the FSI driver used on some SH processors to\n     DMAEngine.\n\n   - Conversion of EP93xx drivers to DMAEngine.\n\n   - New CODEC drivers for Maxim MAX9768 and Wolfson Microelectronics\n     WM2200.\n\n   - Move audmux driver from arc/arm to sound/soc\n\n   - McBSP move from arch/ to sound/ and updates\n\n  Also, a few small updates and fixes for other drivers like au88x0,\n  ymfpci, USB 6fire, USB usx2yaudio are included.\"\n\n* tag \u0027sound-3.4\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (446 commits)\n  ASoC: wm8994: Provide VMID mode control and fix default sequence\n  ASoC: wm8994: Add missing break in resume\n  ASoC: wm_hubs: Don\u0027t actively manage LINEOUT_VMID_BUF\n  ASoC: pxa-ssp: atomically set stream active masks\n  ASoC: fsl: p1022ds: tell the WM8776 codec driver that it\u0027s the master\n  ASoC: Samsung: Added to support mono recording\n  ALSA: hda - Fix build with CONFIG_PM\u003dn\n  ALSA: au88x0 - Avoid possible Oops at unbinding\n  ALSA: usb-audio - Fix build error by consitification of rate list\n  ASoC: core: Fix obscure leak of runtime array\n  ALSA: pcm - Avoid GFP_ATOMIC in snd_pcm_link()\n  ALSA: pcm: Constify the list in snd_pcm_hw_constraint_list\n  ASoC: wm8996: Add 44.1kHz support\n  ALSA: hda - Fix build of patch_sigmatel.c without CONFIG_SND_HDA_POWER_SAVE\n  ASoC: mx27vis-aic32x4: Convert it to platform driver\n  ALSA: hda - fix printing of high HDMI sample rates\n  ALSA: ymfpci - Fix legacy registers on S3/S4 resume\n  ALSA: control - Fixe a trailing white space error\n  ALSA: hda - Add expose_enum_ctl flag to snd_hda_add_vmaster_hook()\n  ALSA: hda - Add \"Mute-LED Mode\" enum control\n  ...\n"
    },
    {
      "commit": "424a6f6ef990b7e9f56f6627bfc6c46b493faeb4",
      "tree": "0028356ed8003495fbbe1f716f359e3c8ebc35b6",
      "parents": [
        "1ab142d499294b844ecc81e8004db4ce029b0b61",
        "cd8df932d894f3128c884e3ae1b2b484540513db"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 12:55:29 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 12:55:29 2012 -0700"
      },
      "message": "Merge tag \u0027scsi-misc\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6\n\nSCSI updates from James Bottomley:\n \"The update includes the usual assortment of driver updates (lpfc,\n  qla2xxx, qla4xxx, bfa, bnx2fc, bnx2i, isci, fcoe, hpsa) plus a huge\n  amount of infrastructure work in the SAS library and transport class\n  as well as an iSCSI update.  There\u0027s also a new SCSI based virtio\n  driver.\"\n\n* tag \u0027scsi-misc\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (177 commits)\n  [SCSI] qla4xxx: Update driver version to 5.02.00-k15\n  [SCSI] qla4xxx: trivial cleanup\n  [SCSI] qla4xxx: Fix sparse warning\n  [SCSI] qla4xxx: Add support for multiple session per host.\n  [SCSI] qla4xxx: Export CHAP index as sysfs attribute\n  [SCSI] scsi_transport: Export CHAP index as sysfs attribute\n  [SCSI] qla4xxx: Add support to display CHAP list and delete CHAP entry\n  [SCSI] iscsi_transport: Add support to display CHAP list and delete CHAP entry\n  [SCSI] pm8001: fix endian issue with code optimization.\n  [SCSI] pm8001: Fix possible racing condition.\n  [SCSI] pm8001: Fix bogus interrupt state flag issue.\n  [SCSI] ipr: update PCI ID definitions for new adapters\n  [SCSI] qla2xxx: handle default case in qla2x00_request_firmware()\n  [SCSI] isci: improvements in driver unloading routine\n  [SCSI] isci: improve phy event warnings\n  [SCSI] isci: debug, provide state-enum-to-string conversions\n  [SCSI] scsi_transport_sas: \u0027enable\u0027 phys on reset\n  [SCSI] libsas: don\u0027t recover end devices attached to disabled phys\n  [SCSI] libsas: fixup target_port_protocols for expanders that don\u0027t report sata\n  [SCSI] libsas: set attached device type and target protocols for local phys\n  ...\n"
    },
    {
      "commit": "1ab142d499294b844ecc81e8004db4ce029b0b61",
      "tree": "9db85a456d0cba3de8b9bd6671b1b52fa939770c",
      "parents": [
        "267d7b23dd62f6ec55e0fba777e456495c308fc7",
        "187e70a554e0f0717a65998bc9199945cbbd4692"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 12:38:04 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 12:38:04 2012 -0700"
      },
      "message": "Merge branch \u0027for-next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending\n\nPull SCSI target updates from Nicholas Bellinger:\n \"This contains the usual set of updates and bugfixes to target-core +\n  existing fabric module code, along with a handful of the patches\n  destined for v3.3 stable.\n\n  It also contains the necessary target-core infrastructure pieces\n  required to run using tcm_qla2xxx.ko WWPNs with the new Qlogic Fibre\n  Channel fabric module currently queued in target-pending/for-next-merge,\n  and coming for round 2.\n\n  The highlights for this series include:\n\n   - Add target_submit_tmr() helper function for fabric task management\n     (andy)\n   - Convert tcm_fc to use target_submit_tmr() (andy)\n   - Replace target core various cmd flags with a transport state (hch)\n   - Convert loopback to use workqueue submission (hch)\n   - Convert target core to use array_zalloc for tpg_lun_list (joern)\n   - Convert target core to use array_zalloc for device_list (joern)\n   - Add target core support for TMR_ABORT_TASK (nab)\n   - Add target core se_sess-\u003esess_kref + get/put helpers (nab)\n   - Add target core se_node_acl-\u003eacl_kref for -\u003eacl_free_comp usage\n     (nab)\n   - Convert iscsi-target to use target_put_session + sess_kref (nab)\n   - Fix tcm_fc fc_exch memory leak in ft_send_resp_status (nab)\n   - Fix ib_srpt srpt_handle_cmd send_ioctx-\u003eioctx_kref leak on\n     exception (nab)\n   - Fix target core up handling of short INQUIRY buffers (roland)\n   - Untangle target-core front-end and back-end meanings of max_sectors\n     attribute (roland)\n   - Set loopback residual field for SCSI commands (roland)\n   - Fix target-core 16-bit target ports for SET TARGET PORT GROUPS\n     emulation (roland)\n\n  Thanks again to Andy, Christoph, Joern, Roland, and everyone who has\n  contributed this round!\"\n\n* \u0027for-next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (64 commits)\n  ib_srpt: Fix srpt_handle_cmd send_ioctx-\u003eioctx_kref leak on exception\n  loopback: Fix transport_generic_allocate_tasks error handling\n  iscsi-target: remove improper externs\n  iscsi-target: Remove unused variables in iscsi_target_parameters.c\n  target: remove obvious warnings\n  target: Use array_zalloc for device_list\n  target: Use array_zalloc for tpg_lun_list\n  target: Fix sense code for unsupported SERVICE ACTION IN\n  target: Remove hack to make READ CAPACITY(10) lie if thin provisioning is enabled\n  target: Bump core version to v4.1.0-rc2-ml + fabric versions\n  tcm_fc: Fix fc_exch memory leak in ft_send_resp_status\n  target: Drop unused legacy target_core_fabric_ops API callers\n  iscsi-target: Convert to use target_put_session + sess_kref\n  target: Convert se_node_acl-\u003eacl_group removal to use -\u003eacl_kref\n  target: Add se_node_acl-\u003eacl_kref for -\u003eacl_free_comp usage\n  target: Add se_node_acl-\u003eacl_free_comp for NodeACL release path\n  target: Add se_sess-\u003esess_kref + get/put helpers\n  target: Convert session_lock to irqsave\n  target: Fix typo in drivers/target\n  iscsi-target: Fix dynamic -\u003e explict NodeACL pointer reference\n  ...\n"
    },
    {
      "commit": "267d7b23dd62f6ec55e0fba777e456495c308fc7",
      "tree": "5c9fe0f07d5b87029b9c07eb003596c05d161a8f",
      "parents": [
        "28f23d1f3b6a6078312b6e9585e583cc7326fe22",
        "ecb178bb2b154a40cfae9fa4c42e62ccfa81ac6b"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 12:29:50 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 12:29:50 2012 -0700"
      },
      "message": "Merge tag \u0027md-3.4\u0027 of git://neil.brown.name/md\n\nPull md updates for 3.4 from Neil Brown:\n \"Mostly tidying up code in preparation for some bigger changes next\n  time.\n\n  A few bug fixes tagged for -stable.\n\n  Main functionality change is that some RAID10 arrays can now grow to\n  use extra space that may have been made available on the individual\n  devices.\"\n\nFixed up trivial conflicts with the k[un]map_atomic() cleanups in\ndrivers/md/bitmap.c.\n\n* tag \u0027md-3.4\u0027 of git://neil.brown.name/md: (22 commits)\n  md: Add judgement bb-\u003eunacked_exist in function md_ack_all_badblocks().\n  md: fix clearing of the \u0027changed\u0027 flags for the bad blocks list.\n  md/bitmap: discard CHUNK_BLOCK_SHIFT macro\n  md/bitmap: remove unnecessary indirection when allocating.\n  md/bitmap: remove some pointless locking.\n  md/bitmap: change a \u0027goto\u0027 to a normal \u0027if\u0027 construct.\n  md/bitmap: move printing of bitmap status to bitmap.c\n  md/bitmap: remove some unused noise from bitmap.h\n  md/raid10 - support resizing some RAID10 arrays.\n  md/raid1: handle merge_bvec_fn in member devices.\n  md/raid10: handle merge_bvec_fn in member devices.\n  md: add proper merge_bvec handling to RAID0 and Linear.\n  md: tidy up rdev_for_each usage.\n  md/raid1,raid10: avoid deadlock during resync/recovery.\n  md/bitmap: ensure to load bitmap when creating via sysfs.\n  md: don\u0027t set md arrays to readonly on shutdown.\n  md: allow re-add to failed arrays.\n  md/raid5: use atomic_dec_return() instead of atomic_dec() and atomic_read().\n  md: Use existed macros instead of numbers\n  md/raid5: removed unused \u0027added_devices\u0027 variable.\n  ...\n"
    },
    {
      "commit": "28f23d1f3b6a6078312b6e9585e583cc7326fe22",
      "tree": "db366c75c2e2d12a2a2c3b7299c35ef7c72928a4",
      "parents": [
        "23904815461ba223a8baf7490051597fa054299b",
        "c7b738351ba92f48b943ac59aff6b5b0f17f37c9"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:44:50 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:44:50 2012 -0700"
      },
      "message": "Merge branch \u0027x86-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull x86 \"urgent\" leftovers from Ingo Molnar:\n \"Pending x86/urgent bits that were not high prio enough to warrant\n  -rc-less v3.3-final inclusion.\"\n\n* \u0027x86-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  x86, efi: Fix pointer math issue in handle_ramdisks()\n  x86/ioapic: Add register level checks to detect bogus io-apic entries\n  x86, mce: Fix rcu splat in drain_mce_log_buffer()\n  x86, memblock: Move mem_hole_size() to .init\n"
    },
    {
      "commit": "23904815461ba223a8baf7490051597fa054299b",
      "tree": "2d52ce8ff18c4f731183d0b10048eb74489a3391",
      "parents": [
        "754b9800779402924fffe456b49d557e15260cbf",
        "fa63030e9c79e37b4d4e63b39ffb09cfb7aa0fe4"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:42:36 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:43:22 2012 -0700"
      },
      "message": "Merge branch \u0027x86-platform-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull x86 platform changes from Ingo Molnar.\n\nRemoves the Moorestown platform that nobody ever used.\n\n* \u0027x86-platform-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  x86/platform: Move APIC ID validity check into platform APIC code\n  x86/olpc/xo15/sci: Enable lid close wakeup control\n  x86/geode/net5501: Add platform driver for Soekris Engineering net5501\n  x86/geode/alix2: Supplement driver to include GPIO button support\n  x86/mid/powerbtn: Use MSIC read/write instead of ipc_scu\n  x86/mid/thermal: Turn off thermistor\n  x86/mid/thermal: Add msic_thermal alias\n  x86/mid/thermal: Convert to use Intel MSIC API\n  x86/mid/scu_ipc: Remove Moorestown support\n  x86/mid: Kill off Moorestown\n  x86/mrst: Add msic_thermal platform support\n  x86/config: Select MSIC MFD driver on Intel Medfield platform\n  x86/mid: Remove Intel Moorestown\n  x86/mrst: Set ISA bus type for fake MP IRQs\n  x86/ioapic: Use legacy_pic to set correct gsi-irq mapping\n"
    },
    {
      "commit": "754b9800779402924fffe456b49d557e15260cbf",
      "tree": "0e0441eca766616fccd8fc37a3885397efc6063a",
      "parents": [
        "35cb8d9e18c0bb33b90d7e574abadbe23b65427d",
        "ea281a9ebaba3287130dbe15bb0aad6f798bb06b"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:42:04 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:42:04 2012 -0700"
      },
      "message": "Merge branch \u0027x86-mce-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull MCE changes from Ingo Molnar.\n\n* \u0027x86-mce-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  x86/mce: Fix return value of mce_chrdev_read() when erst is disabled\n  x86/mce: Convert static array of pointers to per-cpu variables\n  x86/mce: Replace hard coded hex constants with symbolic defines\n  x86/mce: Recognise machine check bank signature for data path error\n  x86/mce: Handle \"action required\" errors\n  x86/mce: Add mechanism to safely save information in MCE handler\n  x86/mce: Create helper function to save addr/misc when needed\n  HWPOISON: Add code to handle \"action required\" errors.\n  HWPOISON: Clean up memory_failure() vs. __memory_failure()\n"
    },
    {
      "commit": "35cb8d9e18c0bb33b90d7e574abadbe23b65427d",
      "tree": "7bf2ce00ce1203a54ad5ace4f707a10f4fe0b14b",
      "parents": [
        "02c502566ef505d0469fa27567f48766c1f5f7af",
        "1361b83a13d4d92e53fbb6c877528713e118b821"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:41:22 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:41:22 2012 -0700"
      },
      "message": "Merge branch \u0027x86-fpu-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull x86/fpu changes from Ingo Molnar.\n\n* \u0027x86-fpu-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  i387: Split up \u003casm/i387.h\u003e into exported and internal interfaces\n  i387: Uninline the generic FP helpers that we expose to kernel modules\n"
    },
    {
      "commit": "02c502566ef505d0469fa27567f48766c1f5f7af",
      "tree": "dd29678eb5f15ddfe537418eb83ad2c54074c37b",
      "parents": [
        "f06fc0c0de0b4f01dbad8ec5552e78192c7abbb8",
        "a51f4047758d2bcd099ea113b833ed380f4024ba"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:40:53 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:40:53 2012 -0700"
      },
      "message": "Merge branch \u0027x86-build-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull x86/build changes from Ingo Molnar.\n\n* \u0027x86-build-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  x86, build: Fix portability issues when cross-building\n  x86, tools: Remove unneeded header files from tools/build.c\n  USB: ffs-test: Don\u0027t duplicate {get,put}_unaligned*() functions\n  x86, efi: Fix endian issues and unaligned accesses\n  x86, boot: Restrict CFLAGS for hostprogs\n  x86, mkpiggy: Don\u0027t open code put_unaligned_le32()\n  x86, relocs: Don\u0027t open code put_unaligned_le32()\n  tools/include: Add byteshift headers for endian access\n"
    },
    {
      "commit": "f06fc0c0de0b4f01dbad8ec5552e78192c7abbb8",
      "tree": "d31b0639244cbcaca2957b1c0c6c05686d4aeffa",
      "parents": [
        "4c64616bb51b399886ded8f4f69bad4da2da1817",
        "1adbfa3511ee1c1118e16a9a0246870f12fef4e6"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:31:31 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:31:31 2012 -0700"
      },
      "message": "Merge branch \u0027x86-eficross-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull x86/eficross (booting 32/64-bit kernel from 64/32-bit EFI) from Ingo Molnar\n\n* \u0027x86-eficross-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  x86, efi: Allow basic init with mixed 32/64-bit efi/kernel\n  x86, efi: Add basic error handling\n  x86, efi: Cleanup config table walking\n  x86, efi: Convert printk to pr_*()\n  x86, efi: Refactor efi_init() a bit\n"
    },
    {
      "commit": "4c64616bb51b399886ded8f4f69bad4da2da1817",
      "tree": "341991585a9998e8c9bf20600f0d5cbf5a1746d2",
      "parents": [
        "c5c7fb8fbd7cd228132b6e2a17a10f246ffc06ee",
        "943bc7e110f269f88dc92bbf249adbd384d35f1c"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:30:39 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:30:39 2012 -0700"
      },
      "message": "Merge branch \u0027x86-debug-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull x86/debug changes from Ingo Molnar.\n\n* \u0027x86-debug-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  x86: Fix section warnings\n  x86-64: Fix CFI data for common_interrupt()\n  x86: Properly _init-annotate NMI selftest code\n  x86/debug: Fix/improve the show_msr\u003d\u003ccpus\u003e debug print out\n"
    },
    {
      "commit": "c5c7fb8fbd7cd228132b6e2a17a10f246ffc06ee",
      "tree": "3cd15a14d78b399c5dbeaf8beba7599615bc40bd",
      "parents": [
        "1b674bf106f59e04e24b3825c2f08dcd9a5b7264",
        "140f190bc3a3b6f200548d204befd998eadd63fd",
        "35f1790e6c6a7e4cae57b616cf36444d27fa6b28",
        "513c4ec6e4759aa33c90af0658b82eb4d2027871",
        "42dfc43ee5999ac64284476ea0ac6c937587cf2b",
        "b0deca2e0270135f797e81bdb0743e50fd1dc58d"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:28:15 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:28:15 2012 -0700"
      },
      "message": "Merge branches \u0027x86-cpu-for-linus\u0027, \u0027x86-boot-for-linus\u0027, \u0027x86-cpufeature-for-linus\u0027, \u0027x86-process-for-linus\u0027 and \u0027x86-uv-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull trivial x86 branches from Ingo Molnar: small one-liners to fix up\ndetails.\n\n* \u0027x86-cpu-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  x86: Remove some noise from boot log when starting cpus\n\n* \u0027x86-boot-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  x86, boot: Fix port argument to inl() function\n\n* \u0027x86-cpufeature-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  x86, cpufeature: Add CPU features from Intel document 319433-012A\n\n* \u0027x86-process-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  x86_64: Record stack pointer before task execution begins\n\n* \u0027x86-uv-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  x86/UV: Lower UV rtc clocksource rating\n"
    },
    {
      "commit": "1b674bf106f59e04e24b3825c2f08dcd9a5b7264",
      "tree": "b90b52b692111f0be66eaf7efb040e35a6e763e3",
      "parents": [
        "e17fdf5c6778ff77d93dd769910992e4073b9348",
        "cb8095bba6d24118135a5683a956f4f4fb5f17bb"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:23:57 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:23:57 2012 -0700"
      },
      "message": "Merge branch \u0027x86-atomic-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull x86/atomic changes from Ingo Molnar.\n\n* \u0027x86-atomic-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  x86: atomic64 assembly improvements\n  x86: Adjust asm constraints in atomic64 wrappers\n"
    },
    {
      "commit": "e17fdf5c6778ff77d93dd769910992e4073b9348",
      "tree": "d1a7ca2b1faf4301b39300fbd82f9b91e605a77e",
      "parents": [
        "95211279c5ad00a317c98221d7e4365e02f20836",
        "a240ada241dafe290e7532d1ddeb98fdf1419068"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:13:24 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:13:24 2012 -0700"
      },
      "message": "Merge branch \u0027x86-asm-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull x86/asm changes from Ingo Molnar\n\n* \u0027x86-asm-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n  x86: Include probe_roms.h in probe_roms.c\n  x86/32: Print control and debug registers for kerenel context\n  x86: Tighten dependencies of CPU_SUP_*_32\n  x86/numa: Improve internode cache alignment\n  x86: Fix the NMI nesting comments\n  x86-64: Improve insn scheduling in SAVE_ARGS_IRQ\n  x86-64: Fix CFI annotations for NMI nesting code\n  bitops: Add missing parentheses to new get_order macro\n  bitops: Optimise get_order()\n  bitops: Adjust the comment on get_order() to describe the size\u003d\u003d0 case\n  x86/spinlocks: Eliminate TICKET_MASK\n  x86-64: Handle byte-wise tail copying in memcpy() without a loop\n  x86-64: Fix memcpy() to support sizes of 4Gb and above\n  x86-64: Fix memset() to support sizes of 4Gb and above\n  x86-64: Slightly shorten copy_page()\n"
    },
    {
      "commit": "95211279c5ad00a317c98221d7e4365e02f20836",
      "tree": "2ddc8625378d2915b8c96392f3cf6663b705ed55",
      "parents": [
        "5375871d432ae9fc581014ac117b96aaee3cd0c7",
        "12724850e8064f64b6223d26d78c0597c742c65a"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:04:48 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Mar 22 09:04:48 2012 -0700"
      },
      "message": "Merge branch \u0027akpm\u0027 (Andrew\u0027s patch-bomb)\n\nMerge first batch of patches from Andrew Morton:\n \"A few misc things and all the MM queue\"\n\n* emailed from Andrew Morton \u003cakpm@linux-foundation.org\u003e: (92 commits)\n  memcg: avoid THP split in task migration\n  thp: add HPAGE_PMD_* definitions for !CONFIG_TRANSPARENT_HUGEPAGE\n  memcg: clean up existing move charge code\n  mm/memcontrol.c: remove unnecessary \u0027break\u0027 in mem_cgroup_read()\n  mm/memcontrol.c: remove redundant BUG_ON() in mem_cgroup_usage_unregister_event()\n  mm/memcontrol.c: s/stealed/stolen/\n  memcg: fix performance of mem_cgroup_begin_update_page_stat()\n  memcg: remove PCG_FILE_MAPPED\n  memcg: use new logic for page stat accounting\n  memcg: remove PCG_MOVE_LOCK flag from page_cgroup\n  memcg: simplify move_account() check\n  memcg: remove EXPORT_SYMBOL(mem_cgroup_update_page_stat)\n  memcg: kill dead prev_priority stubs\n  memcg: remove PCG_CACHE page_cgroup flag\n  memcg: let css_get_next() rely upon rcu_read_lock()\n  cgroup: revert ss_id_lock to spinlock\n  idr: make idr_get_next() good for rcu_read_lock()\n  memcg: remove unnecessary thp check in page stat accounting\n  memcg: remove redundant returns\n  memcg: enum lru_list lru\n  ...\n"
    },
    {
      "commit": "1898f4426b3863216a9041389b34a3b995883027",
      "tree": "1f1fa81d13ab229c3efea589e79135912b5260e6",
      "parents": [
        "5466c7b1683a23dbbcfb7ee4a71c4f23886001c7",
        "6544599249086ce50f216a6cedbea56514ffefc6"
      ],
      "author": {
        "name": "Dave Airlie",
        "email": "airlied@redhat.com",
        "time": "Thu Mar 22 14:44:06 2012 +0000"
      },
      "committer": {
        "name": "Dave Airlie",
        "email": "airlied@redhat.com",
        "time": "Thu Mar 22 14:44:06 2012 +0000"
      },
      "message": "Merge branch \u0027drm-nouveau-next\u0027 of git://git.freedesktop.org/git/nouveau/linux-2.6 into drm-next\n\n* \u0027drm-nouveau-next\u0027 of git://git.freedesktop.org/git/nouveau/linux-2.6:\n  drm/nouveau/dp: support version 4.0 of DP table\n  drm/nve0/disp: nvidia randomly decided to move the dithering method\n  drm/nve0: initial modesetting support for kepler chipsets\n  drm/nouveau: add bios connector type for dms59\n  drm/nouveau: move out of staging drivers\n  drm/nouveau: bump version to 1.0.0\n  drm/nvd0/disp: ignore clock set if no pclk\n  drm/nouveau: oops, increase channel dispc_vma to 4\n  drm/nouveau: inform userspace of new kernel subchannel requirements\n  drm/nouveau: remove m2mf creation on userspace channels\n  drm/nvc0-/disp: reimplement flip completion method as fifo method\n  drm/nouveau: move fence sequence check to start of loop\n  drm/nouveau: remove subchannel names from places where it doesn\u0027t matter\n  drm/nouveau/ttm: always do buffer moves on kernel channel\n"
    },
    {
      "commit": "6544599249086ce50f216a6cedbea56514ffefc6",
      "tree": "7b4fb0b9ada08c8a9b6530f08eeee93459f3fbf8",
      "parents": [
        "e592c73b91e9dfc7403fe41f649dd18593805ccd"
      ],
      "author": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Sun Mar 11 16:08:05 2012 +1000"
      },
      "committer": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Fri Mar 23 00:21:18 2012 +1000"
      },
      "message": "drm/nouveau/dp: support version 4.0 of DP table\n\nSigned-off-by: Ben Skeggs \u003cbskeggs@redhat.com\u003e\n"
    },
    {
      "commit": "e592c73b91e9dfc7403fe41f649dd18593805ccd",
      "tree": "7d9db6cd6b8264f7daf5b0fce941003ef53660e8",
      "parents": [
        "68455a43debe26dd1d2a42c0b67dd5697c201420"
      ],
      "author": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Mon Mar 05 10:05:45 2012 +1000"
      },
      "committer": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Fri Mar 23 00:21:14 2012 +1000"
      },
      "message": "drm/nve0/disp: nvidia randomly decided to move the dithering method\n\nSigned-off-by: Ben Skeggs \u003cbskeggs@redhat.com\u003e\n"
    },
    {
      "commit": "68455a43debe26dd1d2a42c0b67dd5697c201420",
      "tree": "692eeca94a4fee9a64dfed910b4a3b1dbd5c1c99",
      "parents": [
        "fa2c113ac1da39f922ab287b75c8d3f21a4b16dd"
      ],
      "author": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Sun Mar 04 14:47:55 2012 +1000"
      },
      "committer": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Fri Mar 23 00:21:12 2012 +1000"
      },
      "message": "drm/nve0: initial modesetting support for kepler chipsets\n\nSigned-off-by: Ben Skeggs \u003cbskeggs@redhat.com\u003e\n"
    },
    {
      "commit": "fa2c113ac1da39f922ab287b75c8d3f21a4b16dd",
      "tree": "9d1097d6061b68fc137401d5b439b648686bce27",
      "parents": [
        "f3c93cbde7eab38671ae085cb1027b08f5f36757"
      ],
      "author": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Thu Mar 22 11:27:15 2012 +1000"
      },
      "committer": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Thu Mar 22 17:18:16 2012 +1000"
      },
      "message": "drm/nouveau: add bios connector type for dms59\n\nSigned-off-by: Ben Skeggs \u003cbskeggs@redhat.com\u003e\n"
    },
    {
      "commit": "f3c93cbde7eab38671ae085cb1027b08f5f36757",
      "tree": "e08adf2d7d8c7f82257b9f15dd80c6da542169b9",
      "parents": [
        "f887c425f9eeed8ffbca64c8be45da62b07096c0"
      ],
      "author": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Fri Mar 16 18:19:14 2012 +1000"
      },
      "committer": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Thu Mar 22 17:18:12 2012 +1000"
      },
      "message": "drm/nouveau: move out of staging drivers\n\nThere\u0027s really no good reason for us to be in here anymore, we have to\nmaintain this ABI anyway to avoid angering people.\n\nSigned-off-by: Ben Skeggs \u003cbskeggs@redhat.com\u003e\n"
    },
    {
      "commit": "f887c425f9eeed8ffbca64c8be45da62b07096c0",
      "tree": "37947b9c6ccfbbae8dc4943ff41187c2982f4af7",
      "parents": [
        "dd62608bcc8a629c4c583fb50b90003fd5213516"
      ],
      "author": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Fri Mar 16 12:44:34 2012 +1000"
      },
      "committer": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Thu Mar 22 17:18:06 2012 +1000"
      },
      "message": "drm/nouveau: bump version to 1.0.0\n\nThe time has come to get a proper version number that we can change to\nindicate new features etc, rather than the lock-step 0.0.XX that we\npreviously had.\n\nlibdrm has recognised this version as compatible with 0.0.16 since 2.4.22,\nso hopefully any breakage people see should be very minimal.\n\nSigned-off-by: Ben Skeggs \u003cbskeggs@redhat.com\u003e\n"
    },
    {
      "commit": "dd62608bcc8a629c4c583fb50b90003fd5213516",
      "tree": "81a52947d3f7a0522353828340eb6e8d4fa04eed",
      "parents": [
        "27100ac95a8eee0b083e46bfa67b229ac641d28c"
      ],
      "author": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Fri Mar 16 15:32:16 2012 +1000"
      },
      "committer": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Thu Mar 22 17:18:00 2012 +1000"
      },
      "message": "drm/nvd0/disp: ignore clock set if no pclk\n\nThis happens somehow during init on a machine I have, and leads to a\ndivide-by-zero.\n\nLets avoid that...\n\nSigned-off-by: Ben Skeggs \u003cbskeggs@redhat.com\u003e\n"
    },
    {
      "commit": "27100ac95a8eee0b083e46bfa67b229ac641d28c",
      "tree": "06c8fb050c4e65fbe08821d1cf6f7693dc7276f4",
      "parents": [
        "664695ae6f8b2b72aa5820aa20f4d65016cb3fd0"
      ],
      "author": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Fri Mar 16 13:45:09 2012 +1000"
      },
      "committer": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Thu Mar 22 17:17:56 2012 +1000"
      },
      "message": "drm/nouveau: oops, increase channel dispc_vma to 4\n\nSigned-off-by: Ben Skeggs \u003cbskeggs@redhat.com\u003e\n"
    },
    {
      "commit": "664695ae6f8b2b72aa5820aa20f4d65016cb3fd0",
      "tree": "38d731bc4028424e65844160ff87571776208d5e",
      "parents": [
        "48aca13f0167ae78c28c6b48d82a157a6692eecb"
      ],
      "author": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Wed Mar 21 13:57:40 2012 +1000"
      },
      "committer": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Thu Mar 22 17:17:50 2012 +1000"
      },
      "message": "drm/nouveau: inform userspace of new kernel subchannel requirements\n\nAll available subchannels are now available for userspace to do with as it\npleases on NVC0+.\n\nOn all earlier chipsets, the kernel still uses a software object on subc 0\nto implement the page flip completion method.  I hope to find some decent\nway of addressing this too, but it\u0027s a tad tricker prior to fermi.\n\nSigned-off-by: Ben Skeggs \u003cbskeggs@redhat.com\u003e\n"
    },
    {
      "commit": "48aca13f0167ae78c28c6b48d82a157a6692eecb",
      "tree": "54937c4fc0e8f19fcf2d8abfb35a82798f85ce96",
      "parents": [
        "d5316e251230c4e54a157349a362229c3d4daa32"
      ],
      "author": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Sun Mar 18 00:40:41 2012 +1000"
      },
      "committer": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Thu Mar 22 17:17:46 2012 +1000"
      },
      "message": "drm/nouveau: remove m2mf creation on userspace channels\n\nSigned-off-by: Ben Skeggs \u003cbskeggs@redhat.com\u003e\n"
    },
    {
      "commit": "d5316e251230c4e54a157349a362229c3d4daa32",
      "tree": "a5371432d01ac0ef54c4c402c901a0fc1f2d2323",
      "parents": [
        "b08abd4e9a11d637d3c2ff52b2ebbc1b3f686d06"
      ],
      "author": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Wed Mar 21 13:53:49 2012 +1000"
      },
      "committer": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Thu Mar 22 17:17:40 2012 +1000"
      },
      "message": "drm/nvc0-/disp: reimplement flip completion method as fifo method\n\nRemoves need for M2MF subchannel usage on NVC0+.\n\nSigned-off-by: Ben Skeggs \u003cbskeggs@redhat.com\u003e\n"
    },
    {
      "commit": "b08abd4e9a11d637d3c2ff52b2ebbc1b3f686d06",
      "tree": "b965122d55743e4094cccdb1c3884299693ee7b7",
      "parents": [
        "b5b2e5988bd18a2f6e3f192adf7439599de00d3f"
      ],
      "author": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Wed Mar 21 13:51:03 2012 +1000"
      },
      "committer": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Thu Mar 22 17:17:36 2012 +1000"
      },
      "message": "drm/nouveau: move fence sequence check to start of loop\n\nI want to be able to use REF_CNT from other places in the kernel without\npushing a fence object onto the list of emitted fences.\n\nThe current code makes an assumption that every time the acked sequence is\nbumped that there\u0027s at least one fence on the list that\u0027ll be signalled.\n\nThis will no longer be true in the near future.\n\nSigned-off-by: Ben Skeggs \u003cbskeggs@redhat.com\u003e\n"
    },
    {
      "commit": "b5b2e5988bd18a2f6e3f192adf7439599de00d3f",
      "tree": "802c2ff81977b982c1ec0ca0f5dc8ae67b98a469",
      "parents": [
        "accf94969f226ddfe7dd3a6a76ce093ace839b26"
      ],
      "author": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Fri Mar 16 00:09:54 2012 +1000"
      },
      "committer": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Thu Mar 22 17:17:30 2012 +1000"
      },
      "message": "drm/nouveau: remove subchannel names from places where it doesn\u0027t matter\n\nThese are FIFO methods, it doesn\u0027t matter what subchannel is being used.\n\nSigned-off-by: Ben Skeggs \u003cbskeggs@redhat.com\u003e\n"
    },
    {
      "commit": "accf94969f226ddfe7dd3a6a76ce093ace839b26",
      "tree": "d376e4f4240ed414388d19aaa1fd1df3d1a2e54e",
      "parents": [
        "2f5394c3ed573de2ab18cdac503b8045cd16ac5e"
      ],
      "author": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Fri Mar 16 12:40:17 2012 +1000"
      },
      "committer": {
        "name": "Ben Skeggs",
        "email": "bskeggs@redhat.com",
        "time": "Thu Mar 22 17:17:26 2012 +1000"
      },
      "message": "drm/nouveau/ttm: always do buffer moves on kernel channel\n\nThere was once good reasons for wanting the drm to be able to use M2MF etc\non user channels, but they\u0027re not relevant anymore.  For the general\nbuffer move case, we\u0027ve already lost by transferring between vram/sysmem\nalready so the context switching overhead is minimal in comparison.\n\nSigned-off-by: Ben Skeggs \u003cbskeggs@redhat.com\u003e\n"
    },
    {
      "commit": "5375871d432ae9fc581014ac117b96aaee3cd0c7",
      "tree": "be98e8255b0f927fb920fb532a598b93fa140dbe",
      "parents": [
        "b57cb7231b2ce52d3dda14a7b417ae125fb2eb97",
        "dfbc2d75c1bd47c3186fa91f1655ea2f3825b0ec"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 18:55:10 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 18:55:10 2012 -0700"
      },
      "message": "Merge branch \u0027next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc\n\nPull powerpc merge from Benjamin Herrenschmidt:\n \"Here\u0027s the powerpc batch for this merge window.  It is going to be a\n  bit more nasty than usual as in touching things outside of\n  arch/powerpc mostly due to the big iSeriesectomy :-) We finally got\n  rid of the bugger (legacy iSeries support) which was a PITA to\n  maintain and that nobody really used anymore.\n\n  Here are some of the highlights:\n\n   - Legacy iSeries is gone.  Thanks Stephen ! There\u0027s still some bits\n     and pieces remaining if you do a grep -ir series arch/powerpc but\n     they are harmless and will be removed in the next few weeks\n     hopefully.\n\n   - The \u0027fadump\u0027 functionality (Firmware Assisted Dump) replaces the\n     previous (equivalent) \"pHyp assisted dump\"...  it\u0027s a rewrite of a\n     mechanism to get the hypervisor to do crash dumps on pSeries, the\n     new implementation hopefully being much more reliable.  Thanks\n     Mahesh Salgaonkar.\n\n   - The \"EEH\" code (pSeries PCI error handling \u0026 recovery) got a big\n     spring cleaning, motivated by the need to be able to implement a\n     new backend for it on top of some new different type of firwmare.\n\n     The work isn\u0027t complete yet, but a good chunk of the cleanups is\n     there.  Note that this adds a field to struct device_node which is\n     not very nice and which Grant objects to.  I will have a patch soon\n     that moves that to a powerpc private data structure (hopefully\n     before rc1) and we\u0027ll improve things further later on (hopefully\n     getting rid of the need for that pointer completely).  Thanks Gavin\n     Shan.\n\n   - I dug into our exception \u0026 interrupt handling code to improve the\n     way we do lazy interrupt handling (and make it work properly with\n     \"edge\" triggered interrupt sources), and while at it found \u0026 fixed\n     a wagon of issues in those areas, including adding support for page\n     fault retry \u0026 fatal signals on page faults.\n\n   - Your usual random batch of small fixes \u0026 updates, including a bunch\n     of new embedded boards, both Freescale and APM based ones, etc...\"\n\nI fixed up some conflicts with the generalized irq-domain changes from\nGrant Likely, hopefully correctly.\n\n* \u0027next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (141 commits)\n  powerpc/ps3: Do not adjust the wrapper load address\n  powerpc: Remove the rest of the legacy iSeries include files\n  powerpc: Remove the remaining CONFIG_PPC_ISERIES pieces\n  init: Remove CONFIG_PPC_ISERIES\n  powerpc: Remove FW_FEATURE ISERIES from arch code\n  tty/hvc_vio: FW_FEATURE_ISERIES is no longer selectable\n  powerpc/spufs: Fix double unlocks\n  powerpc/5200: convert mpc5200 to use of_platform_populate()\n  powerpc/mpc5200: add options to mpc5200_defconfig\n  powerpc/mpc52xx: add a4m072 board support\n  powerpc/mpc5200: update mpc5200_defconfig to fit for charon board\n  Documentation/powerpc/mpc52xx.txt: Checkpatch cleanup\n  powerpc/44x: Add additional device support for APM821xx SoC and Bluestone board\n  powerpc/44x: Add support PCI-E for APM821xx SoC and Bluestone board\n  MAINTAINERS: Update PowerPC 4xx tree\n  powerpc/44x: The bug fixed support for APM821xx SoC and Bluestone board\n  powerpc: document the FSL MPIC message register binding\n  powerpc: add support for MPIC message register API\n  powerpc/fsl: Added aliased MSIIR register address to MSI node in dts\n  powerpc/85xx: mpc8548cds - add 36-bit dts\n  ...\n"
    },
    {
      "commit": "b57cb7231b2ce52d3dda14a7b417ae125fb2eb97",
      "tree": "b6b3af0b2866f76fe5db80af678f4b3d54cc9b81",
      "parents": [
        "ad12ab259d9131a53aa11c7c4561d97f7cc900df",
        "ae909ea4ad2431e085e6cc96446fbc1c1ae88498"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 18:17:51 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 18:17:51 2012 -0700"
      },
      "message": "Merge branch \u0027for-next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu\n\nPull m68knommu arch updates from Greg Ungerer:\n \"Includes a cleanup of the non-MMU linker script (it now almost\n  exclusively uses the well defined linker script support macros and\n  definitions).  Some more merging of MMU and non-MMU common files\n  (specifically the arch process.c, ptrace and time.c).  And a big\n  cleanup of the massively duplicated ColdFire device definition code.\n\n  Overall we remove about 2000 lines of code, and end up with a single\n  set of platform device definitions for the serial ports, ethernet\n  ports and QSPI ports common in most ColdFire SoCs.\n\n  I expect you will get a merge conflict on arch/m68k/kernel/process.c,\n  in cpu_idle().  It should be relatively strait forward to fixup.\"\n\nAnd cpu_idle() conflict resolution was indeed trivial (merging the\nnommu/mmu versions of process.c trivially conflicting with the\nconversion to use the schedule_preempt_disabled() helper function)\n\n* \u0027for-next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (57 commits)\n  m68knommu: factor more common ColdFire cpu reset code\n  m68knommu: make 528x CPU reset register addressing consistent\n  m68knommu: make 527x CPU reset register addressing consistent\n  m68knommu: make 523x CPU reset register addressing consistent\n  m68knommu: factor some common ColdFire cpu reset code\n  m68knommu: move old ColdFire timers init from CPU init to timers code\n  m68knommu: clean up init code in ColdFire 532x startup\n  m68knommu: clean up init code in ColdFire 528x startup\n  m68knommu: clean up init code in ColdFire 523x startup\n  m68knommu: merge common ColdFire QSPI platform setup code\n  m68knommu: make 532x QSPI platform addressing consistent\n  m68knommu: make 528x QSPI platform addressing consistent\n  m68knommu: make 527x QSPI platform addressing consistent\n  m68knommu: make 5249 QSPI platform addressing consistent\n  m68knommu: make 523x QSPI platform addressing consistent\n  m68knommu: make 520x QSPI platform addressing consistent\n  m68knommu: merge common ColdFire FEC platform setup code\n  m68knommu: make 532x FEC platform addressing consistent\n  m68knommu: make 528x FEC platform addressing consistent\n  m68knommu: make 527x FEC platform addressing consistent\n  ...\n"
    },
    {
      "commit": "ff0a70fe053614e763eb3ac88bfea9c5615fce3b",
      "tree": "1575b70793ba17c26ebbed08c7799dc9b978d62a",
      "parents": [
        "676a38046f4fba4e7418756c6f6fc25cf5976312"
      ],
      "author": {
        "name": "Jussi Kivilinna",
        "email": "jussi.kivilinna@mbnet.fi",
        "time": "Thu Mar 15 22:11:57 2012 +0200"
      },
      "committer": {
        "name": "Herbert Xu",
        "email": "herbert@gondor.apana.org.au",
        "time": "Thu Mar 22 09:17:45 2012 +0800"
      },
      "message": "crypto: twofish-x86_64-3way - module init/exit functions should be static\n\nThis caused conflict with camellia-x86_64 when compiled into kernel, same\nfunction names and not static.\n\nReported-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Jussi Kivilinna \u003cjussi.kivilinna@mbnet.fi\u003e\nAcked-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Herbert Xu \u003cherbert@gondor.apana.org.au\u003e\n"
    },
    {
      "commit": "676a38046f4fba4e7418756c6f6fc25cf5976312",
      "tree": "0775b953b23538b7c989ae1b14e9aced39b1bf41",
      "parents": [
        "2dc9b5dbdef09840de852a4f0cc6a9c9eece7220"
      ],
      "author": {
        "name": "Jussi Kivilinna",
        "email": "jussi.kivilinna@mbnet.fi",
        "time": "Thu Mar 15 22:11:51 2012 +0200"
      },
      "committer": {
        "name": "Herbert Xu",
        "email": "herbert@gondor.apana.org.au",
        "time": "Thu Mar 22 09:17:44 2012 +0800"
      },
      "message": "crypto: camellia-x86_64 - module init/exit functions should be static\n\nThis caused conflict with twofish-x86_64-3way when compiled into kernel,\nsame function names and not static.\n\nReported-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Jussi Kivilinna \u003cjussi.kivilinna@mbnet.fi\u003e\nAcked-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Herbert Xu \u003cherbert@gondor.apana.org.au\u003e\n"
    },
    {
      "commit": "ad12ab259d9131a53aa11c7c4561d97f7cc900df",
      "tree": "457e99e4c4b1facf029a6a094428eaef73f5d261",
      "parents": [
        "30d73f375238441d6dc31de0d90bc39f5bb0bfe5",
        "220cca2a4f5867db595135e0450381032eb54902"
      ],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 18:00:03 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 18:00:03 2012 -0700"
      },
      "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw\n\nPull gfs2 changes from Steven Whitehouse.\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw:\n  GFS2: Change truncate page allocation to be GFP_NOFS\n  GFS2: call gfs2_write_alloc_required for each chunk\n  GFS2: Clean up log flush header writing\n  GFS2: Remove a __GFP_NOFAIL allocation\n  GFS2: Flush pending glock work when evicting an inode\n  GFS2: make sure rgrps are up to date in func gfs2_blk2rgrpd\n  GFS2: Eliminate sd_rindex_mutex\n  GFS2: Unlock rindex mutex on glock error\n  GFS2: Make bd_cmp() static\n  GFS2: Sort the ordered write list\n  GFS2: FITRIM ioctl support\n  GFS2: Move two functions from log.c to lops.c\n  GFS2: glock statistics gathering\n"
    },
    {
      "commit": "12724850e8064f64b6223d26d78c0597c742c65a",
      "tree": "f0b91eeae069fe92906db7ad9d0d8a8003f05db4",
      "parents": [
        "d8c37c480678ebe09bc570f33e085e28049db035"
      ],
      "author": {
        "name": "Naoya Horiguchi",
        "email": "n-horiguchi@ah.jp.nec.com",
        "time": "Wed Mar 21 16:34:28 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:02 2012 -0700"
      },
      "message": "memcg: avoid THP split in task migration\n\nCurrently we can\u0027t do task migration among memory cgroups without THP\nsplit, which means processes heavily using THP experience large overhead\nin task migration.  This patch introduces the code for moving charge of\nTHP and makes THP more valuable.\n\nSigned-off-by: Naoya Horiguchi \u003cn-horiguchi@ah.jp.nec.com\u003e\nAcked-by: Hillf Danton \u003cdhillf@gmail.com\u003e\nCc: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: Daisuke Nishimura \u003cnishimura@mxp.nes.nec.co.jp\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "d8c37c480678ebe09bc570f33e085e28049db035",
      "tree": "c8c53fde803f1a9655f44193c97db76dc4a90fe1",
      "parents": [
        "8d32ff84401f1addb961c7af2c8d9baceb0ab9ba"
      ],
      "author": {
        "name": "Naoya Horiguchi",
        "email": "n-horiguchi@ah.jp.nec.com",
        "time": "Wed Mar 21 16:34:27 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:02 2012 -0700"
      },
      "message": "thp: add HPAGE_PMD_* definitions for !CONFIG_TRANSPARENT_HUGEPAGE\n\nThese macros will be used in a later patch, where all usages are expected\nto be optimized away without #ifdef CONFIG_TRANSPARENT_HUGEPAGE.  But to\ndetect unexpected usages, we convert the existing BUG() to BUILD_BUG().\n\n[akpm@linux-foundation.org: fix build in mm/pgtable-generic.c]\nSigned-off-by: Naoya Horiguchi \u003cn-horiguchi@ah.jp.nec.com\u003e\nAcked-by: Hillf Danton \u003cdhillf@gmail.com\u003e\nReviewed-by: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nReviewed-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: David Rientjes \u003crientjes@google.com\u003e\nCc: Daisuke Nishimura \u003cnishimura@mxp.nes.nec.co.jp\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "8d32ff84401f1addb961c7af2c8d9baceb0ab9ba",
      "tree": "bf62513b239dce072f0105c0b06ed694634a77d4",
      "parents": [
        "a488428871265979bcf2c46298a04c1d5826e6cb"
      ],
      "author": {
        "name": "Naoya Horiguchi",
        "email": "n-horiguchi@ah.jp.nec.com",
        "time": "Wed Mar 21 16:34:27 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:02 2012 -0700"
      },
      "message": "memcg: clean up existing move charge code\n\n- Replace lengthy function name is_target_pte_for_mc() with a shorter\n  one in order to avoid ugly line breaks.\n\n- explicitly use MC_TARGET_* instead of simply using integers.\n\nSigned-off-by: Naoya Horiguchi \u003cn-horiguchi@ah.jp.nec.com\u003e\nCc: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Daisuke Nishimura \u003cnishimura@mxp.nes.nec.co.jp\u003e\nCc: Hillf Danton \u003cdhillf@gmail.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nAcked-by: Hillf Danton \u003cdhillf@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "a488428871265979bcf2c46298a04c1d5826e6cb",
      "tree": "87126bade942bcff8f36e538c8f45605fd080fd0",
      "parents": [
        "45f3e385b7a639c633d7a4b1e863c2d52b918258"
      ],
      "author": {
        "name": "Jeff Liu",
        "email": "jeff.liu@oracle.com",
        "time": "Wed Mar 21 16:34:27 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:02 2012 -0700"
      },
      "message": "mm/memcontrol.c: remove unnecessary \u0027break\u0027 in mem_cgroup_read()\n\nSigned-off-by: Jie Liu \u003cjeff.liu@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "45f3e385b7a639c633d7a4b1e863c2d52b918258",
      "tree": "8f0c068aff36cc4f915899ed68d2e8686d75b069",
      "parents": [
        "13fd1dd9db345f6b2babd1e80a1c929092eb4896"
      ],
      "author": {
        "name": "Anton Vorontsov",
        "email": "anton.vorontsov@linaro.org",
        "time": "Wed Mar 21 16:34:26 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:02 2012 -0700"
      },
      "message": "mm/memcontrol.c: remove redundant BUG_ON() in mem_cgroup_usage_unregister_event()\n\nIn the following code:\n\n\tif (type \u003d\u003d _MEM)\n\t\tthresholds \u003d \u0026memcg-\u003ethresholds;\n\telse if (type \u003d\u003d _MEMSWAP)\n\t\tthresholds \u003d \u0026memcg-\u003ememsw_thresholds;\n\telse\n\t\tBUG();\n\n\tBUG_ON(!thresholds);\n\nThe BUG_ON() seems redundant.\n\nSigned-off-by: Anton Vorontsov \u003canton.vorontsov@linaro.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "13fd1dd9db345f6b2babd1e80a1c929092eb4896",
      "tree": "03d5fd77f06780bd5c164b82c6ba04b56a259b06",
      "parents": [
        "4331f7d339ee0b54603344b9d13662a9c022540c"
      ],
      "author": {
        "name": "Andrew Morton",
        "email": "akpm@linux-foundation.org",
        "time": "Wed Mar 21 16:34:26 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:02 2012 -0700"
      },
      "message": "mm/memcontrol.c: s/stealed/stolen/\n\nA grammatical fix.\n\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "4331f7d339ee0b54603344b9d13662a9c022540c",
      "tree": "ea67ad19a4dff0f8bf7d335bb7ab148ecfb4d329",
      "parents": [
        "2ff76f1193f8481f7e6c29304eea4006e8e51569"
      ],
      "author": {
        "name": "KAMEZAWA Hiroyuki",
        "email": "kamezawa.hiroyu@jp.fujitsu.com",
        "time": "Wed Mar 21 16:34:26 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:02 2012 -0700"
      },
      "message": "memcg: fix performance of mem_cgroup_begin_update_page_stat()\n\nmem_cgroup_begin_update_page_stat() should be very fast because it\u0027s\ncalled very frequently.  Now, it needs to look up page_cgroup and its\nmemcg....this is slow.\n\nThis patch adds a global variable to check \"any memcg is moving or not\".\nWith this, the caller doesn\u0027t need to visit page_cgroup and memcg.\n\nHere is a test result.  A test program makes page faults onto a file,\nMAP_SHARED and makes each page\u0027s page_mapcount(page) \u003e 1, and free the\nrange by madvise() and page fault again.  This program causes 26214400\ntimes of page fault onto a file(size was 1G.) and shows shows the cost of\nmem_cgroup_begin_update_page_stat().\n\nBefore this patch for mem_cgroup_begin_update_page_stat()\n\n    [kamezawa@bluextal test]$ time ./mmap 1G\n\n    real    0m21.765s\n    user    0m5.999s\n    sys     0m15.434s\n\n    27.46%     mmap  mmap               [.] reader\n    21.15%     mmap  [kernel.kallsyms]  [k] page_fault\n     9.17%     mmap  [kernel.kallsyms]  [k] filemap_fault\n     2.96%     mmap  [kernel.kallsyms]  [k] __do_fault\n     2.83%     mmap  [kernel.kallsyms]  [k] __mem_cgroup_begin_update_page_stat\n\nAfter this patch\n\n    [root@bluextal test]# time ./mmap 1G\n\n    real    0m21.373s\n    user    0m6.113s\n    sys     0m15.016s\n\nIn usual path, calls to __mem_cgroup_begin_update_page_stat() goes away.\n\nNote: we may be able to remove this optimization in future if\n      we can get pointer to memcg directly from struct page.\n\n[akpm@linux-foundation.org: don\u0027t return a void]\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: Greg Thelen \u003cgthelen@google.com\u003e\nAcked-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Michal Hocko \u003cmhocko@suse.cz\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Ying Han \u003cyinghan@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "2ff76f1193f8481f7e6c29304eea4006e8e51569",
      "tree": "a263678dc298e29a0c54bb2e6f98bb1d5ee19751",
      "parents": [
        "89c06bd52fb9ffceddf84f7309d2e8c9f1666216"
      ],
      "author": {
        "name": "KAMEZAWA Hiroyuki",
        "email": "kamezawa.hiroyu@jp.fujitsu.com",
        "time": "Wed Mar 21 16:34:25 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:01 2012 -0700"
      },
      "message": "memcg: remove PCG_FILE_MAPPED\n\nWith the new lock scheme for updating memcg\u0027s page stat, we don\u0027t need a\nflag PCG_FILE_MAPPED which was duplicated information of page_mapped().\n\n[hughd@google.com: cosmetic fix]\n[hughd@google.com: add comment to MEM_CGROUP_CHARGE_TYPE_MAPPED case in __mem_cgroup_uncharge_common()]\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: Greg Thelen \u003cgthelen@google.com\u003e\nAcked-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Michal Hocko \u003cmhocko@suse.cz\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Ying Han \u003cyinghan@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "89c06bd52fb9ffceddf84f7309d2e8c9f1666216",
      "tree": "43ec3d97a89988bc143bed5796bcd7bef64212dc",
      "parents": [
        "312734c04e2fecc58429aec98194e4ff12d8f7d6"
      ],
      "author": {
        "name": "KAMEZAWA Hiroyuki",
        "email": "kamezawa.hiroyu@jp.fujitsu.com",
        "time": "Wed Mar 21 16:34:25 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:01 2012 -0700"
      },
      "message": "memcg: use new logic for page stat accounting\n\nNow, page-stat-per-memcg is recorded into per page_cgroup flag by\nduplicating page\u0027s status into the flag.  The reason is that memcg has a\nfeature to move a page from a group to another group and we have race\nbetween \"move\" and \"page stat accounting\",\n\nUnder current logic, assume CPU-A and CPU-B.  CPU-A does \"move\" and CPU-B\ndoes \"page stat accounting\".\n\nWhen CPU-A goes 1st,\n\n            CPU-A                           CPU-B\n                                    update \"struct page\" info.\n    move_lock_mem_cgroup(memcg)\n    see pc-\u003eflags\n    copy page stat to new group\n    overwrite pc-\u003emem_cgroup.\n    move_unlock_mem_cgroup(memcg)\n                                    move_lock_mem_cgroup(mem)\n                                    set pc-\u003eflags\n                                    update page stat accounting\n                                    move_unlock_mem_cgroup(mem)\n\nstat accounting is guarded by move_lock_mem_cgroup() and \"move\" logic\n(CPU-A) doesn\u0027t see changes in \"struct page\" information.\n\nBut it\u0027s costly to have the same information both in \u0027struct page\u0027 and\n\u0027struct page_cgroup\u0027.  And, there is a potential problem.\n\nFor example, assume we have PG_dirty accounting in memcg.\nPG_..is a flag for struct page.\nPCG_ is a flag for struct page_cgroup.\n(This is just an example. The same problem can be found in any\n kind of page stat accounting.)\n\n\t  CPU-A                               CPU-B\n      TestSet PG_dirty\n      (delay)                        TestClear PG_dirty\n                                     if (TestClear(PCG_dirty))\n                                          memcg-\u003enr_dirty--\n      if (TestSet(PCG_dirty))\n          memcg-\u003enr_dirty++\n\nHere, memcg-\u003enr_dirty \u003d +1, this is wrong.  This race was reported by Greg\nThelen \u003cgthelen@google.com\u003e.  Now, only FILE_MAPPED is supported but\nfortunately, it\u0027s serialized by page table lock and this is not real bug,\n_now_,\n\nIf this potential problem is caused by having duplicated information in\nstruct page and struct page_cgroup, we may be able to fix this by using\noriginal \u0027struct page\u0027 information.  But we\u0027ll have a problem in \"move\naccount\"\n\nAssume we use only PG_dirty.\n\n         CPU-A                   CPU-B\n    TestSet PG_dirty\n    (delay)                    move_lock_mem_cgroup()\n                               if (PageDirty(page))\n                                      new_memcg-\u003enr_dirty++\n                               pc-\u003emem_cgroup \u003d new_memcg;\n                               move_unlock_mem_cgroup()\n    move_lock_mem_cgroup()\n    memcg \u003d pc-\u003emem_cgroup\n    new_memcg-\u003enr_dirty++\n\naccounting information may be double-counted.  This was original reason to\nhave PCG_xxx flags but it seems PCG_xxx has another problem.\n\nI think we need a bigger lock as\n\n     move_lock_mem_cgroup(page)\n     TestSetPageDirty(page)\n     update page stats (without any checks)\n     move_unlock_mem_cgroup(page)\n\nThis fixes both of problems and we don\u0027t have to duplicate page flag into\npage_cgroup.  Please note: move_lock_mem_cgroup() is held only when there\nare possibility of \"account move\" under the system.  So, in most path,\nstatus update will go without atomic locks.\n\nThis patch introduces mem_cgroup_begin_update_page_stat() and\nmem_cgroup_end_update_page_stat() both should be called at modifying\n\u0027struct page\u0027 information if memcg takes care of it.  as\n\n     mem_cgroup_begin_update_page_stat()\n     modify page information\n     mem_cgroup_update_page_stat()\n     \u003d\u003e never check any \u0027struct page\u0027 info, just update counters.\n     mem_cgroup_end_update_page_stat().\n\nThis patch is slow because we need to call begin_update_page_stat()/\nend_update_page_stat() regardless of accounted will be changed or not.  A\nfollowing patch adds an easy optimization and reduces the cost.\n\n[akpm@linux-foundation.org: s/lock/locked/]\n[hughd@google.com: fix deadlock by avoiding stat lock when anon]\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Greg Thelen \u003cgthelen@google.com\u003e\nAcked-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Michal Hocko \u003cmhocko@suse.cz\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Ying Han \u003cyinghan@google.com\u003e\nSigned-off-by: Hugh Dickins \u003chughd@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "312734c04e2fecc58429aec98194e4ff12d8f7d6",
      "tree": "c1195cd46733b6a3909c11b2b5abcdee4412b99b",
      "parents": [
        "619d094b5872a5af153f1af77a8b7f7326faf0d0"
      ],
      "author": {
        "name": "KAMEZAWA Hiroyuki",
        "email": "kamezawa.hiroyu@jp.fujitsu.com",
        "time": "Wed Mar 21 16:34:24 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:01 2012 -0700"
      },
      "message": "memcg: remove PCG_MOVE_LOCK flag from page_cgroup\n\nPCG_MOVE_LOCK is used for bit spinlock to avoid race between overwriting\npc-\u003emem_cgroup and page statistics accounting per memcg.  This lock helps\nto avoid the race but the race is very rare because moving tasks between\ncgroup is not a usual job.  So, it seems using 1bit per page is too\ncostly.\n\nThis patch changes this lock as per-memcg spinlock and removes\nPCG_MOVE_LOCK.\n\nIf smaller lock is required, we\u0027ll be able to add some hashes but I\u0027d like\nto start from this.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: Greg Thelen \u003cgthelen@google.com\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Michal Hocko \u003cmhocko@suse.cz\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Ying Han \u003cyinghan@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "619d094b5872a5af153f1af77a8b7f7326faf0d0",
      "tree": "4de9ff8640d8cee092800cd722e621ea2db63640",
      "parents": [
        "9e3357907c84517d9e07bc0b19265807f0264b43"
      ],
      "author": {
        "name": "KAMEZAWA Hiroyuki",
        "email": "kamezawa.hiroyu@jp.fujitsu.com",
        "time": "Wed Mar 21 16:34:23 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:01 2012 -0700"
      },
      "message": "memcg: simplify move_account() check\n\nIn memcg, for avoiding take-lock-irq-off at accessing page_cgroup, a\nlogic, flag + rcu_read_lock(), is used.  This works as following\n\n     CPU-A                     CPU-B\n                             rcu_read_lock()\n    set flag\n                             if(flag is set)\n                                   take heavy lock\n                             do job.\n    synchronize_rcu()        rcu_read_unlock()\n    take heavy lock.\n\nIn recent discussion, it\u0027s argued that using per-cpu value for this flag\njust complicates the code because \u0027set flag\u0027 is very rare.\n\nThis patch changes \u0027flag\u0027 implementation from percpu to atomic_t.  This\nwill be much simpler.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: Greg Thelen \u003cgthelen@google.com\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Michal Hocko \u003cmhocko@suse.cz\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Ying Han \u003cyinghan@google.com\u003e\nCc: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nAcked-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "9e3357907c84517d9e07bc0b19265807f0264b43",
      "tree": "3ce1602eefd0c1f006c23170da16545478dc5404",
      "parents": [
        "a710920caedfcf56543136bfea300a6c593f9838"
      ],
      "author": {
        "name": "KAMEZAWA Hiroyuki",
        "email": "kamezawa.hiroyu@jp.fujitsu.com",
        "time": "Wed Mar 21 16:34:23 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:01 2012 -0700"
      },
      "message": "memcg: remove EXPORT_SYMBOL(mem_cgroup_update_page_stat)\n\nAs described in the log, I guess EXPORT was for preparing dirty\naccounting.  But _now_, we don\u0027t need to export this.  Remove this for\nnow.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nReviewed-by: Greg Thelen \u003cgthelen@google.com\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Michal Hocko \u003cmhocko@suse.cz\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Ying Han \u003cyinghan@google.com\u003e\nAcked-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "a710920caedfcf56543136bfea300a6c593f9838",
      "tree": "47546c076b45b8b6b82c4f6b47906a480a00b24f",
      "parents": [
        "b24028572fb69e9dd6de8c359eba2b2c66baa889"
      ],
      "author": {
        "name": "Konstantin Khlebnikov",
        "email": "khlebnikov@openvz.org",
        "time": "Wed Mar 21 16:34:22 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:01 2012 -0700"
      },
      "message": "memcg: kill dead prev_priority stubs\n\nThis code was removed in 25edde033291 (\"vmscan: kill prev_priority\ncompletely\")\n\nSigned-off-by: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nAcked-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "b24028572fb69e9dd6de8c359eba2b2c66baa889",
      "tree": "563594eba40e5fd0b61c36c09705f128a8dfbe40",
      "parents": [
        "ca464d69b19120a826aa2534de2511a6f542edf5"
      ],
      "author": {
        "name": "KAMEZAWA Hiroyuki",
        "email": "kamezawa.hiroyu@jp.fujitsu.com",
        "time": "Wed Mar 21 16:34:22 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:01 2012 -0700"
      },
      "message": "memcg: remove PCG_CACHE page_cgroup flag\n\nWe record \u0027the page is cache\u0027 with the PCG_CACHE bit in page_cgroup.\nHere, \"CACHE\" means anonymous user pages (and SwapCache).  This doesn\u0027t\ninclude shmem.\n\nConsidering callers, at charge/uncharge, the caller should know what the\npage is and we don\u0027t need to record it by using one bit per page.\n\nThis patch removes PCG_CACHE bit and make callers of\nmem_cgroup_charge_statistics() to specify what the page is.\n\nAbout page migration: Mapping of the used page is not touched during migra\ntion (see page_remove_rmap) so we can rely on it and push the correct\ncharge type down to __mem_cgroup_uncharge_common from end_migration for\nunused page.  The force flag was misleading was abused for skipping the\nneedless page_mapped() / PageCgroupMigration() check, as we know the\nunused page is no longer mapped and cleared the migration flag just a few\nlines up.  But doing the checks is no biggie and it\u0027s not worth adding\nanother flag just to skip them.\n\n[akpm@linux-foundation.org: checkpatch fixes]\n[hughd@google.com: fix PageAnon uncharging]\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: Michal Hocko \u003cmhocko@suse.cz\u003e\nAcked-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Hugh Dickins \u003chughd@google.com\u003e\nCc: Ying Han \u003cyinghan@google.com\u003e\nAcked-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "ca464d69b19120a826aa2534de2511a6f542edf5",
      "tree": "092582419a30825b8483640856483ea8ee56cf81",
      "parents": [
        "42aee6c495e07dba7410b863a360db6bb9ec6d66"
      ],
      "author": {
        "name": "Hugh Dickins",
        "email": "hughd@google.com",
        "time": "Wed Mar 21 16:34:21 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:01 2012 -0700"
      },
      "message": "memcg: let css_get_next() rely upon rcu_read_lock()\n\nRemove lock and unlock around css_get_next()\u0027s call to idr_get_next().\nmemcg iterators (only users of css_get_next) already did rcu_read_lock(),\nand its comment demands that; but add a WARN_ON_ONCE to make sure of it.\n\nSigned-off-by: Hugh Dickins \u003chughd@google.com\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nAcked-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "42aee6c495e07dba7410b863a360db6bb9ec6d66",
      "tree": "d014b2b5c7aa9d1a1f13686fa06699f9f734ee1c",
      "parents": [
        "9f7de8275b46d9d11b1505adbfe6c2bb48df4741"
      ],
      "author": {
        "name": "Hugh Dickins",
        "email": "hughd@google.com",
        "time": "Wed Mar 21 16:34:21 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:01 2012 -0700"
      },
      "message": "cgroup: revert ss_id_lock to spinlock\n\nCommit c1e2ee2dc436 (\"memcg: replace ss-\u003eid_lock with a rwlock\") has now\nbeen seen to cause the unfair behavior we should have expected from\nconverting a spinlock to an rwlock: softlockup in cgroup_mkdir(), whose\nget_new_cssid() is waiting for the wlock, while there are 19 tasks using\nthe rlock in css_get_next() to get on with their memcg workload (in an\nartificial test, admittedly).  Yet lib/idr.c was made suitable for RCU\nway back: revert that commit, restoring ss-\u003eid_lock to a spinlock.\n\nSigned-off-by: Hugh Dickins \u003chughd@google.com\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nAcked-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "9f7de8275b46d9d11b1505adbfe6c2bb48df4741",
      "tree": "7495111b20585e6e4da20d1b46b7a3747903ce2a",
      "parents": [
        "0e79dedde951e981612ed4e6d74873d61d2a113b"
      ],
      "author": {
        "name": "Hugh Dickins",
        "email": "hughd@google.com",
        "time": "Wed Mar 21 16:34:20 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:01 2012 -0700"
      },
      "message": "idr: make idr_get_next() good for rcu_read_lock()\n\nMake one small adjustment to idr_get_next(): take the height from the top\nlayer (stable under RCU) instead of from the root (unprotected by RCU), as\nidr_find() does: so that it can be used with RCU locking.  Copied comment\non RCU locking from idr_find().\n\nSigned-off-by: Hugh Dickins \u003chughd@google.com\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nAcked-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "0e79dedde951e981612ed4e6d74873d61d2a113b",
      "tree": "eb759b4516068a39bc30a2e1758f0743a9c68762",
      "parents": [
        "1f2b71f41ee81735c25ef326da9a0610d640abc2"
      ],
      "author": {
        "name": "KAMEZAWA Hiroyuki",
        "email": "kamezawa.hiroyu@jp.fujitsu.com",
        "time": "Wed Mar 21 16:34:20 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:01 2012 -0700"
      },
      "message": "memcg: remove unnecessary thp check in page stat accounting\n\nCommit e94c8a9cbce1 (\"memcg: make mem_cgroup_split_huge_fixup() more\nefficient\") removed move_lock_page_cgroup().  So we do not have to check\nPageTransHuge in mem_cgroup_update_page_stat() and fallback into the\nlocked accounting because both move_account() and thp split are done\nwith compound_lock so they cannot race.\n\nThe race between update vs.  move is protected by mem_cgroup_stealed.\n\nPageTransHuge pages shouldn\u0027t appear in this code path currently because\nwe are tracking only file pages at the moment but later we are planning\nto track also other pages (e.g.  mlocked ones).\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nReviewed-by: Acked-by: Michal Hocko \u003cmhocko@suse.cz\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nAcked-by: Ying Han\u003cyinghan@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "1f2b71f41ee81735c25ef326da9a0610d640abc2",
      "tree": "07d2c696698da7bf6446b11158e0291c73bbae6b",
      "parents": [
        "f156ab9333c7810f8c4b1a0413142f52534b2df1"
      ],
      "author": {
        "name": "Hugh Dickins",
        "email": "hughd@google.com",
        "time": "Wed Mar 21 16:34:19 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:00 2012 -0700"
      },
      "message": "memcg: remove redundant returns\n\nRemove redundant returns from ends of functions, and one blank line.\n\nSigned-off-by: Hugh Dickins \u003chughd@google.com\u003e\nReviewed-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nAcked-by: Kirill A. Shutemov \u003ckirill@shutemov.name\u003e\nAcked-by: Michal Hocko \u003cmhocko@suse.cz\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "f156ab9333c7810f8c4b1a0413142f52534b2df1",
      "tree": "c456db15734c575223be69c57328e140cc4b489f",
      "parents": [
        "1eb4927251a4e5ab152e64afb29453547365fde8"
      ],
      "author": {
        "name": "Hugh Dickins",
        "email": "hughd@google.com",
        "time": "Wed Mar 21 16:34:19 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:00 2012 -0700"
      },
      "message": "memcg: enum lru_list lru\n\nMostly we use \"enum lru_list lru\": change those few \"l\"s to \"lru\"s.\n\nSigned-off-by: Hugh Dickins \u003chughd@google.com\u003e\nReviewed-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nAcked-by: Kirill A. Shutemov \u003ckirill@shutemov.name\u003e\nAcked-by: Michal Hocko \u003cmhocko@suse.cz\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "1eb4927251a4e5ab152e64afb29453547365fde8",
      "tree": "e2b51066c91c8a704251dfdfab6b94471206a00f",
      "parents": [
        "d79154bb5223edad407db61f59b9b15b0080ed80"
      ],
      "author": {
        "name": "Hugh Dickins",
        "email": "hughd@google.com",
        "time": "Wed Mar 21 16:34:19 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:00 2012 -0700"
      },
      "message": "memcg: lru_size instead of MEM_CGROUP_ZSTAT\n\nI never understood why we need a MEM_CGROUP_ZSTAT(mz, idx) macro to\nobscure the LRU counts.  For easier searching? So call it lru_size\nrather than bare count (lru_length sounds better, but would be wrong,\nsince each huge page raises lru_size hugely).\n\nSigned-off-by: Hugh Dickins \u003chughd@google.com\u003e\nAcked-by: Kirill A. Shutemov \u003ckirill@shutemov.name\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Michal Hocko \u003cmhocko@suse.cz\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "d79154bb5223edad407db61f59b9b15b0080ed80",
      "tree": "28c7c706c5a78763fb75f9ff6e6d2b3a4d7fa82d",
      "parents": [
        "31a79235fc75b506e282e43723107a40f3bc5c07"
      ],
      "author": {
        "name": "Hugh Dickins",
        "email": "hughd@google.com",
        "time": "Wed Mar 21 16:34:18 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:00 2012 -0700"
      },
      "message": "memcg: replace mem and mem_cont stragglers\n\nReplace mem and mem_cont stragglers in memcontrol.c by memcg.\n\nSigned-off-by: Hugh Dickins \u003chughd@google.com\u003e\nReviewed-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nAcked-by: Kirill A. Shutemov \u003ckirill@shutemov.name\u003e\nAcked-by: Michal Hocko \u003cmhocko@suse.cz\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "31a79235fc75b506e282e43723107a40f3bc5c07",
      "tree": "de0d3264015e174f4182e04faed29c98c1f006f5",
      "parents": [
        "052b1987faca3606109d88d96bce124851f7c4c2"
      ],
      "author": {
        "name": "Hugh Dickins",
        "email": "hughd@google.com",
        "time": "Wed Mar 21 16:34:18 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:00 2012 -0700"
      },
      "message": "memcg: replace MEM_CONT by MEM_RES_CTLR\n\nCorrect an #endif comment in memcontrol.h from MEM_CONT to MEM_RES_CTLR.\n\nSigned-off-by: Hugh Dickins \u003chughd@google.com\u003e\nReviewed-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nAcked-by: Kirill A. Shutemov \u003ckirill@shutemov.name\u003e\nAcked-by: Michal Hocko \u003cmhocko@suse.cz\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "052b1987faca3606109d88d96bce124851f7c4c2",
      "tree": "879df883edb01ea6e0da880e391b06bb69058129",
      "parents": [
        "1480de0340a8d5f094b74d7c4b902456c9a06903"
      ],
      "author": {
        "name": "Shaohua Li",
        "email": "shli@kernel.org",
        "time": "Wed Mar 21 16:34:17 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:00 2012 -0700"
      },
      "message": "swap: don\u0027t do discard if no discard option added\n\nWhen swapon() was not passed the SWAP_FLAG_DISCARD option, sys_swapon()\nwill still perform a discard operation.  This can cause problems if\ndiscard is slow or buggy.\n\nReverse the order of the check so that a discard operation is performed\nonly if the sys_swapon() caller is attempting to enable discard.\n\nSigned-off-by: Shaohua Li \u003cshli@fusionio.com\u003e\nReported-by: Holger Kiehl \u003cHolger.Kiehl@dwd.de\u003e\nTested-by: Holger Kiehl \u003cHolger.Kiehl@dwd.de\u003e\nCc: Hugh Dickins \u003chughd@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "1480de0340a8d5f094b74d7c4b902456c9a06903",
      "tree": "6a4c4d776b6475d8a35cb4632340227e8ab311c2",
      "parents": [
        "88f6b4c32e531dc5b06bd05144f790847a1fdaeb"
      ],
      "author": {
        "name": "Konstantin Khlebnikov",
        "email": "khlebnikov@openvz.org",
        "time": "Wed Mar 21 16:34:17 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:00 2012 -0700"
      },
      "message": "mm: forbid lumpy-reclaim in shrink_active_list()\n\nReset the reclaim mode in shrink_active_list() to RECLAIM_MODE_SINGLE |\nRECLAIM_MODE_ASYNC.  (sync/async sign is used only in shrink_page_list\nand does not affect shrink_active_list)\n\nCurrenly shrink_active_list() sometimes works in lumpy-reclaim mode, if\nRECLAIM_MODE_LUMPYRECLAIM is left over from an earlier\nshrink_inactive_list().  Meanwhile, in age_active_anon()\nsc-\u003ereclaim_mode is totally zero.  So the current behavior is too\ncomplex and confusing, and this looks like bug.\n\nIn general, shrink_active_list() populates the inactive list for the\nnext shrink_inactive_list().  Lumpy shring_inactive_list() isolates\npages around the chosen one from both the active and inactive lists.\nSo, there is no reason for lumpy isolation in shrink_active_list().\n\nSee also: https://lkml.org/lkml/2012/3/15/583\n\nSigned-off-by: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nProposed-by: Hugh Dickins \u003chughd@google.com\u003e\nAcked-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Minchan Kim \u003cminchan@kernel.org\u003e\nCc: Mel Gorman \u003cmgorman@suse.de\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "88f6b4c32e531dc5b06bd05144f790847a1fdaeb",
      "tree": "751d07060432fe32200d7849e7901082968b3e51",
      "parents": [
        "d71b5a73fe9af42752c4329b087f7911b35f8f79"
      ],
      "author": {
        "name": "Kautuk Consul",
        "email": "consul.kautuk@gmail.com",
        "time": "Wed Mar 21 16:34:16 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:00 2012 -0700"
      },
      "message": "mmap.c: fix comment for __insert_vm_struct()\n\nThe comment above __insert_vm_struct seems to suggest that this function\nis also going to link the VMA with the anon_vma, but this is not true.\nThis function only links the VMA to the mm-\u003emm_rb tree and the mm-\u003emmap\nlinked list.\n\n[akpm@linux-foundation.org: improve comment layout and text]\nSigned-off-by: Kautuk Consul \u003cconsul.kautuk@gmail.com\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "d71b5a73fe9af42752c4329b087f7911b35f8f79",
      "tree": "9399922a83a31a87ddfb5abe137be689580a2f9a",
      "parents": [
        "b224ef856b1a5b949daff5937a9e187fe622b8f5"
      ],
      "author": {
        "name": "Andrea Arcangeli",
        "email": "aarcange@redhat.com",
        "time": "Wed Mar 21 16:34:16 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:00 2012 -0700"
      },
      "message": "numa_emulation: fix cpumask_of_node()\n\nWithout this fix the cpumask_of_node() for a fake\u003dnuma\u003d2 is:\n\n    cpumask 0 ff\n    cpumask 1 ff\n\nwith the fix it\u0027s correct and it\u0027s set to:\n\n    cpumask 0 55\n    cpumask 1 aa\n\nSigned-off-by: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nCc: Johannes Weiner \u003cjweiner@redhat.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "b224ef856b1a5b949daff5937a9e187fe622b8f5",
      "tree": "7d119425e8734eba198f83dec781d8b9c6859923",
      "parents": [
        "8d13bddd11c10db40e2c81b4b224c11126691fc0"
      ],
      "author": {
        "name": "Kautuk Consul",
        "email": "consul.kautuk@gmail.com",
        "time": "Wed Mar 21 16:34:15 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:00 2012 -0700"
      },
      "message": "page_alloc: remove unused find_zone_movable_pfns_for_nodes() argument\n\nfind_zone_movable_pfns_for_nodes() does not use its argument.\n\nSigned-off-by: Kautuk Consul \u003cconsul.kautuk@gmail.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "8d13bddd11c10db40e2c81b4b224c11126691fc0",
      "tree": "bec31e54cbc43bf6b49c391d81893203b903b5ec",
      "parents": [
        "d1d5e05ffdc110021ae7937802e88ae0d223dcdc"
      ],
      "author": {
        "name": "Kautuk Consul",
        "email": "consul.kautuk@gmail.com",
        "time": "Wed Mar 21 16:34:15 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:00 2012 -0700"
      },
      "message": "page_alloc.c: remove add_from_early_node_map()\n\nadd_from_early_node_map() is unused.\n\nSigned-off-by: Kautuk Consul \u003cconsul.kautuk@gmail.com\u003e\nAcked-by: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "d1d5e05ffdc110021ae7937802e88ae0d223dcdc",
      "tree": "d0960138966aa0436ffad1907f3ad14dcb625ddf",
      "parents": [
        "b69add218d32450d6604bc9080f6e33e19b06f5e"
      ],
      "author": {
        "name": "Hillf Danton",
        "email": "dhillf@gmail.com",
        "time": "Wed Mar 21 16:34:15 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:55:00 2012 -0700"
      },
      "message": "hugetlbfs: return error code when initializing module\n\nReturn an errno upon failure to create inode kmem cache, and unregister\nthe FS upon failure to mount.\n\n[akpm@linux-foundation.org: remove unneeded test of `error\u0027]\nSigned-off-by: Hillf Danton \u003cdhillf@gmail.com\u003e\nAcked-by: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "b69add218d32450d6604bc9080f6e33e19b06f5e",
      "tree": "67c91d3534c2f7bf01b03a49be7543abe77d16a6",
      "parents": [
        "40716e29243de46720e5773797791466c28904ec"
      ],
      "author": {
        "name": "Xiao Guangrong",
        "email": "xiaoguangrong@linux.vnet.ibm.com",
        "time": "Wed Mar 21 16:34:14 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:54:59 2012 -0700"
      },
      "message": "hugetlb: remove prev_vma from hugetlb_get_unmapped_area_topdown()\n\nAfter looking up the vma which covers or follows the cached search\naddress, the following condition is always true:\n\n\t!prev_vma || (addr \u003e\u003d prev_vma-\u003evm_end)\n\nso we can stop checking the previous VMA altogether.\n\nSigned-off-by: Xiao Guangrong \u003cxiaoguangrong@linux.vnet.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "40716e29243de46720e5773797791466c28904ec",
      "tree": "19616ad05cbead73d0643b002a7ced8baa292ee2",
      "parents": [
        "21a3c273f88c9cbbaf7e14505df0131d95c8f262"
      ],
      "author": {
        "name": "Steven Truelove",
        "email": "steven.truelove@utoronto.ca",
        "time": "Wed Mar 21 16:34:14 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:54:59 2012 -0700"
      },
      "message": "hugetlbfs: fix alignment of huge page requests\n\nWhen calling shmget() with SHM_HUGETLB, shmget aligns the request size to\nPAGE_SIZE, but this is not sufficient.\n\nModify hugetlb_file_setup() to align requests to the huge page size, and\nto accept an address argument so that all alignment checks can be\nperformed in hugetlb_file_setup(), rather than in its callers.  Change\nnewseg() and mmap_pgoff() to match the new prototype and eliminate a now\nredundant alignment check.\n\n[akpm@linux-foundation.org: fix build]\nSigned-off-by: Steven Truelove \u003csteven.truelove@utoronto.ca\u003e\nCc: Hugh Dickins \u003chughd@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "21a3c273f88c9cbbaf7e14505df0131d95c8f262",
      "tree": "f3fbc0ebe490b6a339fcea3baa8b39f2260c0b1e",
      "parents": [
        "ea48cf7863c789579b170ef28e7fc62728365d6e"
      ],
      "author": {
        "name": "David Rientjes",
        "email": "rientjes@google.com",
        "time": "Wed Mar 21 16:34:13 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:54:59 2012 -0700"
      },
      "message": "mm, hugetlb: add thread name and pid to SHM_HUGETLB mlock rlimit warning\n\nAdd the thread name and pid of the application that is allocating shm\nsegments with MAP_HUGETLB without being a part of\n/proc/sys/vm/hugetlb_shm_group or having CAP_IPC_LOCK.\n\nThis identifies the application so it may be fixed by avoiding using the\ndeprecated exception (see Documentation/feature-removal-schedule.txt).\n\nSigned-off-by: David Rientjes \u003crientjes@google.com\u003e\nCc: Dave Jones \u003cdavej@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "ea48cf7863c789579b170ef28e7fc62728365d6e",
      "tree": "3602d07d69e1b1b6d8a26f2b221705bb2862ee3c",
      "parents": [
        "05af2e104a0c282dcd9303431e1360750ba76de6"
      ],
      "author": {
        "name": "David Rientjes",
        "email": "rientjes@google.com",
        "time": "Wed Mar 21 16:34:13 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:54:59 2012 -0700"
      },
      "message": "mm, counters: fold __sync_task_rss_stat() into sync_mm_rss()\n\nThere\u0027s no difference between sync_mm_rss() and __sync_task_rss_stat(),\nso fold the latter into the former.\n\nSigned-off-by: David Rientjes \u003crientjes@google.com\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "05af2e104a0c282dcd9303431e1360750ba76de6",
      "tree": "cdd5876f2d17b26cc3ded7ef85d04d0e853e9b7e",
      "parents": [
        "90481622d75715bfcb68501280a917dbfe516029"
      ],
      "author": {
        "name": "David Rientjes",
        "email": "rientjes@google.com",
        "time": "Wed Mar 21 16:34:13 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:54:59 2012 -0700"
      },
      "message": "mm, counters: remove task argument to sync_mm_rss() and __sync_task_rss_stat()\n\nsync_mm_rss() can only be used for current to avoid race conditions in\niterating and clearing its per-task counters.  Remove the task argument\nfor it and its helper function, __sync_task_rss_stat(), to avoid thinking\nit can be used safely for anything other than current.\n\nSigned-off-by: David Rientjes \u003crientjes@google.com\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "90481622d75715bfcb68501280a917dbfe516029",
      "tree": "63f7d9e4455366ab326ee74e6b39acf76b618fcf",
      "parents": [
        "a1d776ee3147cec2a54a645e92eb2e3e2f65a137"
      ],
      "author": {
        "name": "David Gibson",
        "email": "david@gibson.dropbear.id.au",
        "time": "Wed Mar 21 16:34:12 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:54:59 2012 -0700"
      },
      "message": "hugepages: fix use after free bug in \"quota\" handling\n\nhugetlbfs_{get,put}_quota() are badly named.  They don\u0027t interact with the\ngeneral quota handling code, and they don\u0027t much resemble its behaviour.\nRather than being about maintaining limits on on-disk block usage by\nparticular users, they are instead about maintaining limits on in-memory\npage usage (including anonymous MAP_PRIVATE copied-on-write pages)\nassociated with a particular hugetlbfs filesystem instance.\n\nWorse, they work by having callbacks to the hugetlbfs filesystem code from\nthe low-level page handling code, in particular from free_huge_page().\nThis is a layering violation of itself, but more importantly, if the\nkernel does a get_user_pages() on hugepages (which can happen from KVM\namongst others), then the free_huge_page() can be delayed until after the\nassociated inode has already been freed.  If an unmount occurs at the\nwrong time, even the hugetlbfs superblock where the \"quota\" limits are\nstored may have been freed.\n\nAndrew Barry proposed a patch to fix this by having hugepages, instead of\nstoring a pointer to their address_space and reaching the superblock from\nthere, had the hugepages store pointers directly to the superblock,\nbumping the reference count as appropriate to avoid it being freed.\nAndrew Morton rejected that version, however, on the grounds that it made\nthe existing layering violation worse.\n\nThis is a reworked version of Andrew\u0027s patch, which removes the extra, and\nsome of the existing, layering violation.  It works by introducing the\nconcept of a hugepage \"subpool\" at the lower hugepage mm layer - that is a\nfinite logical pool of hugepages to allocate from.  hugetlbfs now creates\na subpool for each filesystem instance with a page limit set, and a\npointer to the subpool gets added to each allocated hugepage, instead of\nthe address_space pointer used now.  The subpool has its own lifetime and\nis only freed once all pages in it _and_ all other references to it (i.e.\nsuperblocks) are gone.\n\nsubpools are optional - a NULL subpool pointer is taken by the code to\nmean that no subpool limits are in effect.\n\nPrevious discussion of this bug found in:  \"Fix refcounting in hugetlbfs\nquota handling.\". See:  https://lkml.org/lkml/2011/8/11/28 or\nhttp://marc.info/?l\u003dlinux-mm\u0026m\u003d126928970510627\u0026w\u003d1\n\nv2: Fixed a bug spotted by Hillf Danton, and removed the extra parameter to\nalloc_huge_page() - since it already takes the vma, it is not necessary.\n\nSigned-off-by: Andrew Barry \u003cabarry@cray.com\u003e\nSigned-off-by: David Gibson \u003cdavid@gibson.dropbear.id.au\u003e\nCc: Hugh Dickins \u003chughd@google.com\u003e\nCc: Mel Gorman \u003cmgorman@suse.de\u003e\nCc: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nCc: Hillf Danton \u003cdhillf@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "a1d776ee3147cec2a54a645e92eb2e3e2f65a137",
      "tree": "244e9a44121be417dc9c999bed2a439b8cb01f8d",
      "parents": [
        "ef6942224a185c9e434f6cfe69fe434e732f5b38"
      ],
      "author": {
        "name": "David Gibson",
        "email": "david@gibson.dropbear.id.au",
        "time": "Wed Mar 21 16:34:12 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:54:59 2012 -0700"
      },
      "message": "hugetlb: cleanup hugetlb.h\n\nMake a couple of small cleanups to linux/include/hugetlb.h.  The\nset_file_hugepages() function, which was not used anywhere is removed,\nand the hugetlbfs_config and hugetlbfs_inode_info structures with its\nHUGETLBFS_I helper function are moved into inode.c, the only place they\nwere used.\n\nThese structures are really linked to the hugetlbfs filesystem\nspecifically not to hugepage mm handling in general, so they belong in\nthe filesystem code not in a generally available header.\n\nIt would be nice to move the hugetlbfs_sb_info (superblock) structure in\nthere as well, but it\u0027s currently needed in a number of places via the\nhstate_vma() and hstate_inode().\n\nSigned-off-by: David Gibson \u003cdavid@gibson.dropbear.id.au\u003e\nCc: Hugh Dickins \u003chughd@google.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Andrew Barry \u003cabarry@cray.com\u003e\nCc: Mel Gorman \u003cmgorman@suse.de\u003e\nCc: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nCc: Hillf Danton \u003cdhillf@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "ef6942224a185c9e434f6cfe69fe434e732f5b38",
      "tree": "e26664dbfd6077129d75f555757d36b5fbec43c2",
      "parents": [
        "cc9a6c8776615f9c194ccf0b63a0aa5628235545"
      ],
      "author": {
        "name": "Bob Liu",
        "email": "lliubbo@gmail.com",
        "time": "Wed Mar 21 16:34:11 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:54:59 2012 -0700"
      },
      "message": "ksm: cleanup: introduce find_mergeable_vma()\n\nThere are multiple places which perform the same check.  Add a new\nfind_mergeable_vma() to handle this.\n\nSigned-off-by: Bob Liu \u003clliubbo@gmail.com\u003e\nAcked-by: Hugh Dickins \u003chughd@google.com\u003e\nCc: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "cc9a6c8776615f9c194ccf0b63a0aa5628235545",
      "tree": "0cbbf118e86541f8eb2fc7b717a0e08eaced986d",
      "parents": [
        "e845e199362cc5712ba0e7eedc14eed70e144258"
      ],
      "author": {
        "name": "Mel Gorman",
        "email": "mgorman@suse.de",
        "time": "Wed Mar 21 16:34:11 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:54:59 2012 -0700"
      },
      "message": "cpuset: mm: reduce large amounts of memory barrier related damage v3\n\nCommit c0ff7453bb5c (\"cpuset,mm: fix no node to alloc memory when\nchanging cpuset\u0027s mems\") wins a super prize for the largest number of\nmemory barriers entered into fast paths for one commit.\n\n[get|put]_mems_allowed is incredibly heavy with pairs of full memory\nbarriers inserted into a number of hot paths.  This was detected while\ninvestigating at large page allocator slowdown introduced some time\nafter 2.6.32.  The largest portion of this overhead was shown by\noprofile to be at an mfence introduced by this commit into the page\nallocator hot path.\n\nFor extra style points, the commit introduced the use of yield() in an\nimplementation of what looks like a spinning mutex.\n\nThis patch replaces the full memory barriers on both read and write\nsides with a sequence counter with just read barriers on the fast path\nside.  This is much cheaper on some architectures, including x86.  The\nmain bulk of the patch is the retry logic if the nodemask changes in a\nmanner that can cause a false failure.\n\nWhile updating the nodemask, a check is made to see if a false failure\nis a risk.  If it is, the sequence number gets bumped and parallel\nallocators will briefly stall while the nodemask update takes place.\n\nIn a page fault test microbenchmark, oprofile samples from\n__alloc_pages_nodemask went from 4.53% of all samples to 1.15%.  The\nactual results were\n\n                             3.3.0-rc3          3.3.0-rc3\n                             rc3-vanilla        nobarrier-v2r1\n    Clients   1 UserTime       0.07 (  0.00%)   0.08 (-14.19%)\n    Clients   2 UserTime       0.07 (  0.00%)   0.07 (  2.72%)\n    Clients   4 UserTime       0.08 (  0.00%)   0.07 (  3.29%)\n    Clients   1 SysTime        0.70 (  0.00%)   0.65 (  6.65%)\n    Clients   2 SysTime        0.85 (  0.00%)   0.82 (  3.65%)\n    Clients   4 SysTime        1.41 (  0.00%)   1.41 (  0.32%)\n    Clients   1 WallTime       0.77 (  0.00%)   0.74 (  4.19%)\n    Clients   2 WallTime       0.47 (  0.00%)   0.45 (  3.73%)\n    Clients   4 WallTime       0.38 (  0.00%)   0.37 (  1.58%)\n    Clients   1 Flt/sec/cpu  497620.28 (  0.00%) 520294.53 (  4.56%)\n    Clients   2 Flt/sec/cpu  414639.05 (  0.00%) 429882.01 (  3.68%)\n    Clients   4 Flt/sec/cpu  257959.16 (  0.00%) 258761.48 (  0.31%)\n    Clients   1 Flt/sec      495161.39 (  0.00%) 517292.87 (  4.47%)\n    Clients   2 Flt/sec      820325.95 (  0.00%) 850289.77 (  3.65%)\n    Clients   4 Flt/sec      1020068.93 (  0.00%) 1022674.06 (  0.26%)\n    MMTests Statistics: duration\n    Sys Time Running Test (seconds)             135.68    132.17\n    User+Sys Time Running Test (seconds)         164.2    160.13\n    Total Elapsed Time (seconds)                123.46    120.87\n\nThe overall improvement is small but the System CPU time is much\nimproved and roughly in correlation to what oprofile reported (these\nperformance figures are without profiling so skew is expected).  The\nactual number of page faults is noticeably improved.\n\nFor benchmarks like kernel builds, the overall benefit is marginal but\nthe system CPU time is slightly reduced.\n\nTo test the actual bug the commit fixed I opened two terminals.  The\nfirst ran within a cpuset and continually ran a small program that\nfaulted 100M of anonymous data.  In a second window, the nodemask of the\ncpuset was continually randomised in a loop.\n\nWithout the commit, the program would fail every so often (usually\nwithin 10 seconds) and obviously with the commit everything worked fine.\nWith this patch applied, it also worked fine so the fix should be\nfunctionally equivalent.\n\nSigned-off-by: Mel Gorman \u003cmgorman@suse.de\u003e\nCc: Miao Xie \u003cmiaox@cn.fujitsu.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Christoph Lameter \u003ccl@linux.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "e845e199362cc5712ba0e7eedc14eed70e144258",
      "tree": "3968125d82e512c3aee44ed96694fdd58b863506",
      "parents": [
        "c7cfa37b7324a190fc36ff116d79d0f899e8d273"
      ],
      "author": {
        "name": "David Rientjes",
        "email": "rientjes@google.com",
        "time": "Wed Mar 21 16:34:10 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:54:59 2012 -0700"
      },
      "message": "mm, memcg: pass charge order to oom killer\n\nThe oom killer typically displays the allocation order at the time of oom\nas a part of its diangostic messages (for global, cpuset, and mempolicy\nooms).\n\nThe memory controller may also pass the charge order to the oom killer so\nit can emit the same information.  This is useful in determining how large\nthe memory allocation is that triggered the oom killer.\n\nSigned-off-by: David Rientjes \u003crientjes@google.com\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Michal Hocko \u003cmhocko@suse.cz\u003e\nCc: Balbir Singh \u003cbsingharora@gmail.com\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "c7cfa37b7324a190fc36ff116d79d0f899e8d273",
      "tree": "391cf185d299ee0aa892fa59be8910d6f3531356",
      "parents": [
        "9a3c531df9462df6cc2b060f749651723ffc180c"
      ],
      "author": {
        "name": "Copot Alexandru",
        "email": "alex.mihai.c@gmail.com",
        "time": "Wed Mar 21 16:34:10 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:54:59 2012 -0700"
      },
      "message": "mm/vmscan.c: fix spelling error\n\ns/noticable/noticeable/\n\nSigned-off-by: Copot Alexandru \u003calex.mihai.c@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "9a3c531df9462df6cc2b060f749651723ffc180c",
      "tree": "448ad57ef6ea3b462849ea1bdd4732e0296e1f4f",
      "parents": [
        "47a133339c332f9f8e155c70f5da401aded69948"
      ],
      "author": {
        "name": "Andi Kleen",
        "email": "ak@linux.intel.com",
        "time": "Wed Mar 21 16:34:09 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:54:58 2012 -0700"
      },
      "message": "mm: update stale lock ordering comment for memory-failure.c\n\nWhen i_mmap_lock changed to a mutex the locking order in memory failure\nwas changed to take the sleeping lock first.  But the big fat mm lock\nordering comment (BFMLO) wasn\u0027t updated.  Do this here.\n\nPointed out by Andrew.\n\nSigned-off-by: Andi Kleen \u003cak@linux.intel.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "47a133339c332f9f8e155c70f5da401aded69948",
      "tree": "94f8fb512ebe8e29d0a3f11a04b04004afd4ab59",
      "parents": [
        "1010bb1b80edb0713415dfe1f97114d320f58c4f"
      ],
      "author": {
        "name": "Fengguang Wu",
        "email": "fengguang.wu@intel.com",
        "time": "Wed Mar 21 16:34:09 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:54:58 2012 -0700"
      },
      "message": "mm: use global_dirty_limit in throttle_vm_writeout()\n\nWhen starting a memory hog task, a desktop box w/o swap is found to go\nunresponsive for a long time.  It\u0027s solely caused by lots of congestion\nwaits in throttle_vm_writeout():\n\n gnome-system-mo-4201 553.073384: congestion_wait: throttle_vm_writeout+0x70/0x7f shrink_mem_cgroup_zone+0x48f/0x4a1\n gnome-system-mo-4201 553.073386: writeback_congestion_wait: usec_timeout\u003d100000 usec_delayed\u003d100000\n           gtali-4237 553.080377: congestion_wait: throttle_vm_writeout+0x70/0x7f shrink_mem_cgroup_zone+0x48f/0x4a1\n           gtali-4237 553.080378: writeback_congestion_wait: usec_timeout\u003d100000 usec_delayed\u003d100000\n            Xorg-3483 553.103375: congestion_wait: throttle_vm_writeout+0x70/0x7f shrink_mem_cgroup_zone+0x48f/0x4a1\n            Xorg-3483 553.103377: writeback_congestion_wait: usec_timeout\u003d100000 usec_delayed\u003d100000\n\nThe root cause is, the dirty threshold is knocked down a lot by the memory\nhog task.  Fixed by using global_dirty_limit which decreases gradually on\nsuch events and can guarantee we stay above (the also decreasing) nr_dirty\nin the progress of following down to the new dirty threshold.\n\nSigned-off-by: Fengguang Wu \u003cfengguang.wu@intel.com\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Jan Kara \u003cjack@suse.cz\u003e\nCc: Greg Thelen \u003cgthelen@google.com\u003e\nCc: Ying Han \u003cyinghan@google.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nReviewed-by: Rik van Riel \u003criel@redhat.com\u003e\nCc: Mel Gorman \u003cmgorman@suse.de\u003e\nCc: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "1010bb1b80edb0713415dfe1f97114d320f58c4f",
      "tree": "70aeaba13b61aa442e0c48c99a1035e204910982",
      "parents": [
        "a05b0855fd15504972dba2358e5faa172a1e50ba"
      ],
      "author": {
        "name": "Fengguang Wu",
        "email": "fengguang.wu@intel.com",
        "time": "Wed Mar 21 16:34:08 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:54:58 2012 -0700"
      },
      "message": "mm: don\u0027t set __GFP_WRITE on ramfs/sysfs writes\n\nThere is not much point in skipping zones during allocation based on the\ndirty usage which they\u0027ll never contribute to.  And we\u0027d like to avoid\npage reclaim waits when writing to ramfs/sysfs etc.\n\nSigned-off-by: Fengguang Wu \u003cfengguang.wu@intel.com\u003e\nAcked-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Jan Kara \u003cjack@suse.cz\u003e\nCc: Greg Thelen \u003cgthelen@google.com\u003e\nCc: Ying Han \u003cyinghan@google.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Mel Gorman \u003cmgorman@suse.de\u003e\nAcked-by: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "a05b0855fd15504972dba2358e5faa172a1e50ba",
      "tree": "f4cba4ef12d888ec472714f67ef7bcec318a5191",
      "parents": [
        "f5bf18fa22f8c41a13eb8762c7373eb3a93a7333"
      ],
      "author": {
        "name": "Aneesh Kumar K.V",
        "email": "aneesh.kumar@linux.vnet.ibm.com",
        "time": "Wed Mar 21 16:34:08 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:54:58 2012 -0700"
      },
      "message": "hugetlbfs: avoid taking i_mutex from hugetlbfs_read()\n\nTaking i_mutex in hugetlbfs_read() can result in deadlock with mmap as\nexplained below\n\n Thread A:\n  read() on hugetlbfs\n   hugetlbfs_read() called\n    i_mutex grabbed\n     hugetlbfs_read_actor() called\n      __copy_to_user() called\n       page fault is triggered\n Thread B, sharing address space with A:\n  mmap() the same file\n   -\u003emmap_sem is grabbed on task_B-\u003emm-\u003emmap_sem\n    hugetlbfs_file_mmap() is called\n     attempt to grab -\u003ei_mutex and block waiting for A to give it up\n Thread A:\n  pagefault handled blocked on attempt to grab task_A-\u003emm-\u003emmap_sem,\n which happens to be the same thing as task_B-\u003emm-\u003emmap_sem.  Block waiting\n for B to give it up.\n\nAFAIU the i_mutex locking was added to hugetlbfs_read() as per\nhttp://lkml.indiana.edu/hypermail/linux/kernel/0707.2/3066.html to take\ncare of the race between truncate and read.  This patch fixes this by\nlooking at page-\u003emapping under lock_page() (find_lock_page()) to ensure\nthat the inode didn\u0027t get truncated in the range during a parallel read.\n\nIdeally we can extend the patch to make sure we don\u0027t increase i_size in\nmmap.  But that will break userspace, because applications will now have\nto use truncate(2) to increase i_size in hugetlbfs.\n\nBased on the original patch from Hillf Danton.\n\nSigned-off-by: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\nCc: Hillf Danton \u003cdhillf@gmail.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Hugh Dickins \u003chughd@google.com\u003e\nCc: \u003cstable@kernel.org\u003e\t\t[everything after 2007 :)]\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "f5bf18fa22f8c41a13eb8762c7373eb3a93a7333",
      "tree": "3da24eb0edae3563c1937088b72a413e7026fdec",
      "parents": [
        "f0cb3c76ae1ced85f9034480b1b24cd96530ec78"
      ],
      "author": {
        "name": "Nishanth Aravamudan",
        "email": "nacc@linux.vnet.ibm.com",
        "time": "Wed Mar 21 16:34:07 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:54:58 2012 -0700"
      },
      "message": "bootmem/sparsemem: remove limit constraint in alloc_bootmem_section\n\nWhile testing AMS (Active Memory Sharing) / CMO (Cooperative Memory\nOvercommit) on powerpc, we tripped the following:\n\n  kernel BUG at mm/bootmem.c:483!\n  cpu 0x0: Vector: 700 (Program Check) at [c000000000c03940]\n      pc: c000000000a62bd8: .alloc_bootmem_core+0x90/0x39c\n      lr: c000000000a64bcc: .sparse_early_usemaps_alloc_node+0x84/0x29c\n      sp: c000000000c03bc0\n     msr: 8000000000021032\n    current \u003d 0xc000000000b0cce0\n    paca    \u003d 0xc000000001d80000\n      pid   \u003d 0, comm \u003d swapper\n  kernel BUG at mm/bootmem.c:483!\n  enter ? for help\n  [c000000000c03c80] c000000000a64bcc\n  .sparse_early_usemaps_alloc_node+0x84/0x29c\n  [c000000000c03d50] c000000000a64f10 .sparse_init+0x12c/0x28c\n  [c000000000c03e20] c000000000a474f4 .setup_arch+0x20c/0x294\n  [c000000000c03ee0] c000000000a4079c .start_kernel+0xb4/0x460\n  [c000000000c03f90] c000000000009670 .start_here_common+0x1c/0x2c\n\nThis is\n\n        BUG_ON(limit \u0026\u0026 goal + size \u003e limit);\n\nand after some debugging, it seems that\n\n\tgoal \u003d 0x7ffff000000\n\tlimit \u003d 0x80000000000\n\nand sparse_early_usemaps_alloc_node -\u003e\nsparse_early_usemaps_alloc_pgdat_section calls\n\n\treturn alloc_bootmem_section(usemap_size() * count, section_nr);\n\nThis is on a system with 8TB available via the AMS pool, and as a quirk\nof AMS in firmware, all of that memory shows up in node 0.  So, we end\nup with an allocation that will fail the goal/limit constraints.\n\nIn theory, we could \"fall-back\" to alloc_bootmem_node() in\nsparse_early_usemaps_alloc_node(), but since we actually have HOTREMOVE\ndefined, we\u0027ll BUG_ON() instead.  A simple solution appears to be to\nunconditionally remove the limit condition in alloc_bootmem_section,\nmeaning allocations are allowed to cross section boundaries (necessary\nfor systems of this size).\n\nJohannes Weiner pointed out that if alloc_bootmem_section() no longer\nguarantees section-locality, we need check_usemap_section_nr() to print\npossible cross-dependencies between node descriptors and the usemaps\nallocated through it.  That makes the two loops in\nsparse_early_usemaps_alloc_node() identical, so re-factor the code a\nbit.\n\n[akpm@linux-foundation.org: code simplification]\nSigned-off-by: Nishanth Aravamudan \u003cnacc@us.ibm.com\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: Anton Blanchard \u003canton@au1.ibm.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Ben Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Robert Jennings \u003crcj@linux.vnet.ibm.com\u003e\nAcked-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nAcked-by: Mel Gorman \u003cmgorman@suse.de\u003e\nCc: \u003cstable@vger.kernel.org\u003e\t[3.3.1]\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "f0cb3c76ae1ced85f9034480b1b24cd96530ec78",
      "tree": "997ae67621f76b3b6bf588604f85738a8c97cbef",
      "parents": [
        "3268c63eded4612a3d07b56d1e02ce7731e6608e"
      ],
      "author": {
        "name": "Konstantin Khlebnikov",
        "email": "khlebnikov@openvz.org",
        "time": "Wed Mar 21 16:34:06 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:54:58 2012 -0700"
      },
      "message": "mm: drain percpu lru add/rotate page-vectors on cpu hot-unplug\n\nThis cpu hotplug hook was accidentally removed in commit 00a62ce91e55\n(\"mm: fix Committed_AS underflow on large NR_CPUS environment\")\n\nThe visible effect of this accident: some pages are borrowed in per-cpu\npage-vectors.  Truncate can deal with it, but these pages cannot be\nreused while this cpu is offline.  So this is like a temporary memory\nleak.\n\nSigned-off-by: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nCc: Dave Hansen \u003cdave@linux.vnet.ibm.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Eric B Munson \u003cebmunson@us.ibm.com\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "3268c63eded4612a3d07b56d1e02ce7731e6608e",
      "tree": "c8a07eb4cdf2697d610bb86d23eb46b0a5f892c2",
      "parents": [
        "385de35722c9a22917e7bc5e63cd83a8cffa5ecd"
      ],
      "author": {
        "name": "Christoph Lameter",
        "email": "cl@linux.com",
        "time": "Wed Mar 21 16:34:06 2012 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Mar 21 17:54:58 2012 -0700"
      },
      "message": "mm: fix move/migrate_pages() race on task struct\n\nMigration functions perform the rcu_read_unlock too early.  As a result\nthe task pointed to may change from under us.  This can result in an oops,\nas reported by Dave Hansen in https://lkml.org/lkml/2012/2/23/302.\n\nThe following patch extend the period of the rcu_read_lock until after the\npermissions checks are done.  We also take a refcount so that the task\nreference is stable when calling security check functions and performing\ncpuset node validation (which takes a mutex).\n\nThe refcount is dropped before actual page migration occurs so there is no\nchange to the refcounts held during page migration.\n\nAlso move the determination of the mm of the task struct to immediately\nbefore the do_migrate*() calls so that it is clear that we switch from\nhandling the task during permission checks to the mm for the actual\nmigration.  Since the determination is only done once and we then no\nlonger use the task_struct we can be sure that we operate on a specific\naddress space that will not change from under us.\n\n[akpm@linux-foundation.org: checkpatch fixes]\nSigned-off-by: Christoph Lameter \u003ccl@linux.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nReported-by: Dave Hansen \u003cdave@linux.vnet.ibm.com\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Hugh Dickins \u003chughd@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    }
  ],
  "next": "385de35722c9a22917e7bc5e63cd83a8cffa5ecd"
}
