)]}' { "log": [ { "commit": "7c979ec7135d96bbff34790bf4b85a8508ede7fc", "tree": "7844a33af78db54561e2bf7d5d11d48885d3b03b", "parents": [ "ad1e597d4199ffcdee04b9fb402e45c5be6a5052" ], "author": { "name": "Ohad Ben-Cohen", "email": "ohad@wizery.com", "time": "Tue Sep 22 16:45:18 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:37 2009 -0700" }, "message": "sdio: add MMC_QUIRK_LENIENT_FN0\n\nNormally writes to SDIO function 0 outside the vendor specific CCCR\nregisters are prohibited.\n\nTo support embedded devices that require writes to SDIO function 0 outside\nthis range (e.g. TI WL127x embedded sdio wifi device),\nMMC_QUIRK_LENIENT_FN0 is introduced.\n\nA card quirks field is added to `struct mmc_card\u0027 to support non-standard\ndevices (e.g. embedded sdio devices).\n\n[akpm@linux-foundation.org: code in C, not cpp!]\nSigned-off-by: Ohad Ben-Cohen \u003cohad@wizery.com\u003e\nCc: \u003clinux-mmc@vger.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": "006ebd5de13854d6250eecc76866bbfad1ff7daf", "tree": "49cf0715227e1da36745bbb50b6b94f341db3986", "parents": [ "653f41b52dfc63fecf4a2333f13be28b159a918c" ], "author": { "name": "Ohad Ben-Cohen", "email": "ohad@wizery.com", "time": "Tue Sep 22 16:45:07 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:36 2009 -0700" }, "message": "sdio: add CD disable support\n\nAdd support to disconnect the pull-up resistor on CD/DAT[3] (pin 1)\nof the card. This may be desired on certain setups of boards,\ncontrollers and embedded sdio devices which do not need the card\u0027s\npull-up. As a result, card detection is disabled and power is saved.\n\n[akpm@linux-foundation.org: simplify sdio_disable_cd() a bit]\nSigned-off-by: Ohad Ben-Cohen \u003cohad@wizery.com\u003e\nAcked-by: Matt Fleming \u003cmatt@console-pimps.org\u003e\nCc: Ian Molton \u003cian@mnementh.co.uk\u003e\nCc: \"Roberto A. Foglietta\" \u003croberto.foglietta@gmail.com\u003e\nCc: Philip Langdale \u003cphilipl@overt.org\u003e\nCc: Pierre Ossman \u003cpierre@ossman.eu\u003e\nCc: David Vrabel \u003cdavid.vrabel@csr.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ef0b27d4ccacac32afc3d1c0e8a95e4091dfbc8c", "tree": "ed507b7f505620915f96df8757f36c78fd24c6b6", "parents": [ "53509f0fe28e049e772897aa8fa1f5183b6823a2" ], "author": { "name": "Adrian Hunter", "email": "adrian.hunter@nokia.com", "time": "Tue Sep 22 16:44:37 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:34 2009 -0700" }, "message": "mmc: check status after MMC SWITCH command\n\nAccording to the standard, the SWITCH command should be followed by a\nSEND_STATUS command to check for errors.\n\nSigned-off-by: Adrian Hunter \u003cadrian.hunter@nokia.com\u003e\nAcked-by: Matt Fleming \u003cmatt@console-pimps.org\u003e\nCc: Ian Molton \u003cian@mnementh.co.uk\u003e\nCc: \"Roberto A. Foglietta\" \u003croberto.foglietta@gmail.com\u003e\nCc: Jarkko Lavinen \u003cjarkko.lavinen@nokia.com\u003e\nCc: Denis Karpov \u003cext-denis.2.karpov@nokia.com\u003e\nCc: Pierre Ossman \u003cpierre@ossman.eu\u003e\nCc: Philip Langdale \u003cphilipl@overt.org\u003e\nCc: \"Madhusudhan\" \u003cmadhu.cr@ti.com\u003e\nCc: \u003clinux-mmc@vger.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": "b1ebe38456f7fe61a88af2844361e763ac6ea5ae", "tree": "b45a2e7afe4f1f6d66d6d38dd1627fa2d6c0e7c7", "parents": [ "eae1aeeed852aae37621b82a9e7f6c05096a18fd" ], "author": { "name": "Jarkko Lavinen", "email": "jarkko.lavinen@nokia.com", "time": "Tue Sep 22 16:44:34 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:33 2009 -0700" }, "message": "mmc: add mmc card sleep and awake support\n\nAdd support for the new MMC command SLEEP_AWAKE.\n\nSigned-off-by: Jarkko Lavinen \u003cjarkko.lavinen@nokia.com\u003e\nSigned-off-by: Adrian Hunter \u003cadrian.hunter@nokia.com\u003e\nAcked-by: Matt Fleming \u003cmatt@console-pimps.org\u003e\nCc: Ian Molton \u003cian@mnementh.co.uk\u003e\nCc: \"Roberto A. Foglietta\" \u003croberto.foglietta@gmail.com\u003e\nCc: Jarkko Lavinen \u003cjarkko.lavinen@nokia.com\u003e\nCc: Denis Karpov \u003cext-denis.2.karpov@nokia.com\u003e\nCc: Pierre Ossman \u003cpierre@ossman.eu\u003e\nCc: Philip Langdale \u003cphilipl@overt.org\u003e\nCc: \"Madhusudhan\" \u003cmadhu.cr@ti.com\u003e\nCc: \u003clinux-mmc@vger.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": "eae1aeeed852aae37621b82a9e7f6c05096a18fd", "tree": "6a1b108032a5cf08ccfa6fffa29c81cccbe8c82d", "parents": [ "9feae246963c648b212abad0f0eb8938de5f5fe5" ], "author": { "name": "Adrian Hunter", "email": "adrian.hunter@nokia.com", "time": "Tue Sep 22 16:44:33 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:33 2009 -0700" }, "message": "mmc: add ability to save power by powering off cards\n\nPower can be saved by powering off cards that are not in use. This is\nsimilar to suspend / resume except it is under the control of the driver,\nand does not require any power management support. It can only be used\nwhen the driver can monitor whether the card is removed, otherwise it is\nunsafe. This is possible because, unlike suspend, the driver still\nreceives card detect and / or cover switch interrupts.\n\nSigned-off-by: Adrian Hunter \u003cadrian.hunter@nokia.com\u003e\nAcked-by: Matt Fleming \u003cmatt@console-pimps.org\u003e\nCc: Ian Molton \u003cian@mnementh.co.uk\u003e\nCc: \"Roberto A. Foglietta\" \u003croberto.foglietta@gmail.com\u003e\nCc: Jarkko Lavinen \u003cjarkko.lavinen@nokia.com\u003e\nCc: Denis Karpov \u003cext-denis.2.karpov@nokia.com\u003e\nCc: Pierre Ossman \u003cpierre@ossman.eu\u003e\nCc: Philip Langdale \u003cphilipl@overt.org\u003e\nCc: \"Madhusudhan\" \u003cmadhu.cr@ti.com\u003e\nCc: \u003clinux-mmc@vger.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": "9feae246963c648b212abad0f0eb8938de5f5fe5", "tree": "fefcc438ab0b8e502c35950e588664ab07ddc439", "parents": [ "319a3f1429c91147058ac26c5f5bac8ec1730bc6" ], "author": { "name": "Adrian Hunter", "email": "adrian.hunter@nokia.com", "time": "Tue Sep 22 16:44:32 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:33 2009 -0700" }, "message": "mmc: add MMC_CAP_NONREMOVABLE host capability\n\neMMC\u0027s are not removable, so unsafe resume is OK always.\n\nTo permit this a new host capability MMC_CAP_NONREMOVABLE has been added\nand suspend / resume updated accordingly.\n\nSigned-off-by: Adrian Hunter \u003cadrian.hunter@nokia.com\u003e\nAcked-by: Matt Fleming \u003cmatt@console-pimps.org\u003e\nCc: Ian Molton \u003cian@mnementh.co.uk\u003e\nCc: \"Roberto A. Foglietta\" \u003croberto.foglietta@gmail.com\u003e\nCc: Jarkko Lavinen \u003cjarkko.lavinen@nokia.com\u003e\nCc: Denis Karpov \u003cext-denis.2.karpov@nokia.com\u003e\nCc: Pierre Ossman \u003cpierre@ossman.eu\u003e\nCc: Philip Langdale \u003cphilipl@overt.org\u003e\nCc: \"Madhusudhan\" \u003cmadhu.cr@ti.com\u003e\nCc: \u003clinux-mmc@vger.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": "319a3f1429c91147058ac26c5f5bac8ec1730bc6", "tree": "4a39ff034f7e9b57b903997f818eee5304657991", "parents": [ "8ea926b22e2d13238e4d65d8f61c48fe424e6f4f" ], "author": { "name": "Adrian Hunter", "email": "adrian.hunter@nokia.com", "time": "Tue Sep 22 16:44:30 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:33 2009 -0700" }, "message": "mmc: allow host claim / release nesting\n\nThis change allows the MMC host to be claimed in situations where the host\nmay or may not have already been claimed. Also \u0027mmc_try_claim_host()\u0027 is\nnow exported.\n\nSigned-off-by: Adrian Hunter \u003cadrian.hunter@nokia.com\u003e\nAcked-by: Matt Fleming \u003cmatt@console-pimps.org\u003e\nCc: Ian Molton \u003cian@mnementh.co.uk\u003e\nCc: \"Roberto A. Foglietta\" \u003croberto.foglietta@gmail.com\u003e\nCc: Jarkko Lavinen \u003cjarkko.lavinen@nokia.com\u003e\nCc: Denis Karpov \u003cext-denis.2.karpov@nokia.com\u003e\nCc: Pierre Ossman \u003cpierre@ossman.eu\u003e\nCc: Philip Langdale \u003cphilipl@overt.org\u003e\nCc: \"Madhusudhan\" \u003cmadhu.cr@ti.com\u003e\nCc: \u003clinux-mmc@vger.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": "8ea926b22e2d13238e4d65d8f61c48fe424e6f4f", "tree": "d62846c0f7aa50afce52bd8a9ed4b2affeaa1889", "parents": [ "27cce39f555def6f5ebe7f03d69ccc44ab25f0b2" ], "author": { "name": "Adrian Hunter", "email": "adrian.hunter@nokia.com", "time": "Tue Sep 22 16:44:29 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:33 2009 -0700" }, "message": "mmc: add \u0027enable\u0027 and \u0027disable\u0027 methods to mmc host\n\nMMC hosts that support power saving can use the \u0027enable\u0027 and \u0027disable\u0027\nmethods to exit and enter power saving states. An explanation of their\nuse is provided in the comments added to include/linux/mmc/host.h.\n\nSigned-off-by: Adrian Hunter \u003cadrian.hunter@nokia.com\u003e\nAcked-by: Matt Fleming \u003cmatt@console-pimps.org\u003e\nCc: Ian Molton \u003cian@mnementh.co.uk\u003e\nCc: \"Roberto A. Foglietta\" \u003croberto.foglietta@gmail.com\u003e\nCc: Jarkko Lavinen \u003cjarkko.lavinen@nokia.com\u003e\nCc: Denis Karpov \u003cext-denis.2.karpov@nokia.com\u003e\nCc: Pierre Ossman \u003cpierre@ossman.eu\u003e\nCc: Philip Langdale \u003cphilipl@overt.org\u003e\nCc: \"Madhusudhan\" \u003cmadhu.cr@ti.com\u003e\nCc: \u003clinux-mmc@vger.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": "00afe029aab03bd95eba210b5e74a252017c4692", "tree": "4c9aa4a10d7fa5f813896c8c439df592aacf295d", "parents": [ "a9ece53c4089ef23d4002d34c4c7148d94622a40" ], "author": { "name": "Mike Frysinger", "email": "vapier@gentoo.org", "time": "Tue Sep 22 16:44:14 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:30 2009 -0700" }, "message": "asm/sections: add text/data checking functions for arches to override\n\nSome ports (like the Blackfin arch) have a discontiguous memory map which\nmeans there may be text or data that falls outside of the standard range\nof the start/end text/data symbols. Creating some helper functions allows\nthese non-standard ports to declare these regions without adversely\naffecting anyone else.\n\nSigned-off-by: Mike Frysinger \u003cvapier@gentoo.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Robin Getz \u003crgetz@blackfin.uclinux.org\u003e\nCc: Sam Ravnborg \u003csam@ravnborg.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnd Bergmann \u003carnd@arndb.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1f10206cf8e945220f7220a809d8bfc15c21f9a5", "tree": "4f2c48ccf9cc52dad9610df54e301e631a351288", "parents": [ "b28cfd2c0616e1b42acc6ee3c77ef6cc3873c510" ], "author": { "name": "Jiri Pirko", "email": "jpirko@redhat.com", "time": "Tue Sep 22 16:44:10 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:30 2009 -0700" }, "message": "getrusage: fill ru_maxrss value\n\nMake -\u003eru_maxrss value in struct rusage filled accordingly to rss hiwater\nmark. This struct is filled as a parameter to getrusage syscall.\n-\u003eru_maxrss value is set to KBs which is the way it is done in BSD\nsystems. /usr/bin/time (gnu time) application converts -\u003eru_maxrss to KBs\nwhich seems to be incorrect behavior. Maintainer of this util was\nnotified by me with the patch which corrects it and cc\u0027ed.\n\nTo make this happen we extend struct signal_struct by two fields. The\nfirst one is -\u003emaxrss which we use to store rss hiwater of the task. The\nsecond one is -\u003ecmaxrss which we use to store highest rss hiwater of all\ntask childs. These values are used in k_getrusage() to actually fill\n-\u003eru_maxrss. k_getrusage() uses current rss hiwater value directly if mm\nstruct exists.\n\nNote:\nexec() clear mm-\u003ehiwater_rss, but doesn\u0027t clear sig-\u003emaxrss.\nit is intetionally behavior. *BSD getrusage have exec() inheriting.\n\ntest programs\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n\ngetrusage.c\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n #include \u003cstdio.h\u003e\n #include \u003cstdlib.h\u003e\n #include \u003cstring.h\u003e\n #include \u003csys/types.h\u003e\n #include \u003csys/time.h\u003e\n #include \u003csys/resource.h\u003e\n #include \u003csys/types.h\u003e\n #include \u003csys/wait.h\u003e\n #include \u003cunistd.h\u003e\n #include \u003csignal.h\u003e\n #include \u003csys/mman.h\u003e\n\n #include \"common.h\"\n\n #define err(str) perror(str), exit(1)\n\nint main(int argc, char** argv)\n{\n\tint status;\n\n\tprintf(\"allocate 100MB\\n\");\n\tconsume(100);\n\n\tprintf(\"testcase1: fork inherit? \\n\");\n\tprintf(\" expect: initial.self ~\u003d child.self\\n\");\n\tshow_rusage(\"initial\");\n\tif (__fork()) {\n\t\twait(\u0026status);\n\t} else {\n\t\tshow_rusage(\"fork child\");\n\t\t_exit(0);\n\t}\n\tprintf(\"\\n\");\n\n\tprintf(\"testcase2: fork inherit? (cont.) \\n\");\n\tprintf(\" expect: initial.children ~\u003d 100MB, but child.children \u003d 0\\n\");\n\tshow_rusage(\"initial\");\n\tif (__fork()) {\n\t\twait(\u0026status);\n\t} else {\n\t\tshow_rusage(\"child\");\n\t\t_exit(0);\n\t}\n\tprintf(\"\\n\");\n\n\tprintf(\"testcase3: fork + malloc \\n\");\n\tprintf(\" expect: child.self ~\u003d initial.self + 50MB\\n\");\n\tshow_rusage(\"initial\");\n\tif (__fork()) {\n\t\twait(\u0026status);\n\t} else {\n\t\tprintf(\"allocate +50MB\\n\");\n\t\tconsume(50);\n\t\tshow_rusage(\"fork child\");\n\t\t_exit(0);\n\t}\n\tprintf(\"\\n\");\n\n\tprintf(\"testcase4: grandchild maxrss\\n\");\n\tprintf(\" expect: post_wait.children ~\u003d 300MB\\n\");\n\tshow_rusage(\"initial\");\n\tif (__fork()) {\n\t\twait(\u0026status);\n\t\tshow_rusage(\"post_wait\");\n\t} else {\n\t\tsystem(\"./child -n 0 -g 300\");\n\t\t_exit(0);\n\t}\n\tprintf(\"\\n\");\n\n\tprintf(\"testcase5: zombie\\n\");\n\tprintf(\" expect: pre_wait ~\u003d initial, IOW the zombie process is not accounted.\\n\");\n\tprintf(\" post_wait ~\u003d 400MB, IOW wait() collect child\u0027s max_rss. \\n\");\n\tshow_rusage(\"initial\");\n\tif (__fork()) {\n\t\tsleep(1); /* children become zombie */\n\t\tshow_rusage(\"pre_wait\");\n\t\twait(\u0026status);\n\t\tshow_rusage(\"post_wait\");\n\t} else {\n\t\tsystem(\"./child -n 400\");\n\t\t_exit(0);\n\t}\n\tprintf(\"\\n\");\n\n\tprintf(\"testcase6: SIG_IGN\\n\");\n\tprintf(\" expect: initial ~\u003d after_zombie (child\u0027s 500MB alloc should be ignored).\\n\");\n\tshow_rusage(\"initial\");\n\tsignal(SIGCHLD, SIG_IGN);\n\tif (__fork()) {\n\t\tsleep(1); /* children become zombie */\n\t\tshow_rusage(\"after_zombie\");\n\t} else {\n\t\tsystem(\"./child -n 500\");\n\t\t_exit(0);\n\t}\n\tprintf(\"\\n\");\n\tsignal(SIGCHLD, SIG_DFL);\n\n\tprintf(\"testcase7: exec (without fork) \\n\");\n\tprintf(\" expect: initial ~\u003d exec \\n\");\n\tshow_rusage(\"initial\");\n\texecl(\"./child\", \"child\", \"-v\", NULL);\n\n\treturn 0;\n}\n\nchild.c\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n #include \u003csys/types.h\u003e\n #include \u003cunistd.h\u003e\n #include \u003csys/types.h\u003e\n #include \u003csys/wait.h\u003e\n #include \u003cstdio.h\u003e\n #include \u003cstdlib.h\u003e\n #include \u003cstring.h\u003e\n #include \u003csys/types.h\u003e\n #include \u003csys/time.h\u003e\n #include \u003csys/resource.h\u003e\n\n #include \"common.h\"\n\nint main(int argc, char** argv)\n{\n\tint status;\n\tint c;\n\tlong consume_size \u003d 0;\n\tlong grandchild_consume_size \u003d 0;\n\tint show \u003d 0;\n\n\twhile ((c \u003d getopt(argc, argv, \"n:g:v\")) !\u003d -1) {\n\t\tswitch (c) {\n\t\tcase \u0027n\u0027:\n\t\t\tconsume_size \u003d atol(optarg);\n\t\t\tbreak;\n\t\tcase \u0027v\u0027:\n\t\t\tshow \u003d 1;\n\t\t\tbreak;\n\t\tcase \u0027g\u0027:\n\n\t\t\tgrandchild_consume_size \u003d atol(optarg);\n\t\t\tbreak;\n\t\tdefault:\n\t\t\tbreak;\n\t\t}\n\t}\n\n\tif (show)\n\t\tshow_rusage(\"exec\");\n\n\tif (consume_size) {\n\t\tprintf(\"child alloc %ldMB\\n\", consume_size);\n\t\tconsume(consume_size);\n\t}\n\n\tif (grandchild_consume_size) {\n\t\tif (fork()) {\n\t\t\twait(\u0026status);\n\t\t} else {\n\t\t\tprintf(\"grandchild alloc %ldMB\\n\", grandchild_consume_size);\n\t\t\tconsume(grandchild_consume_size);\n\n\t\t\texit(0);\n\t\t}\n\t}\n\n\treturn 0;\n}\n\ncommon.c\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n #include \u003cstdio.h\u003e\n #include \u003cstdlib.h\u003e\n #include \u003cstring.h\u003e\n #include \u003csys/types.h\u003e\n #include \u003csys/time.h\u003e\n #include \u003csys/resource.h\u003e\n #include \u003csys/types.h\u003e\n #include \u003csys/wait.h\u003e\n #include \u003cunistd.h\u003e\n #include \u003csignal.h\u003e\n #include \u003csys/mman.h\u003e\n\n #include \"common.h\"\n #define err(str) perror(str), exit(1)\n\nvoid show_rusage(char *prefix)\n{\n \tint err, err2;\n \tstruct rusage rusage_self;\n \tstruct rusage rusage_children;\n\n \tprintf(\"%s: \", prefix);\n \terr \u003d getrusage(RUSAGE_SELF, \u0026rusage_self);\n \tif (!err)\n \t\tprintf(\"self %ld \", rusage_self.ru_maxrss);\n \terr2 \u003d getrusage(RUSAGE_CHILDREN, \u0026rusage_children);\n \tif (!err2)\n \t\tprintf(\"children %ld \", rusage_children.ru_maxrss);\n\n \tprintf(\"\\n\");\n}\n\n/* Some buggy OS need this worthless CPU waste. */\nvoid make_pagefault(void)\n{\n\tvoid *addr;\n\tint size \u003d getpagesize();\n\tint i;\n\n\tfor (i\u003d0; i\u003c1000; i++) {\n\t\taddr \u003d mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);\n\t\tif (addr \u003d\u003d MAP_FAILED)\n\t\t\terr(\"make_pagefault\");\n\t\tmemset(addr, 0, size);\n\t\tmunmap(addr, size);\n\t}\n}\n\nvoid consume(int mega)\n{\n \tsize_t sz \u003d mega * 1024 * 1024;\n \tvoid *ptr;\n\n \tptr \u003d malloc(sz);\n \tmemset(ptr, 0, sz);\n\tmake_pagefault();\n}\n\npid_t __fork(void)\n{\n\tpid_t pid;\n\n\tpid \u003d fork();\n\tmake_pagefault();\n\n\treturn pid;\n}\n\ncommon.h\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\nvoid show_rusage(char *prefix);\nvoid make_pagefault(void);\nvoid consume(int mega);\npid_t __fork(void);\n\nFreeBSD result (expected result)\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\nallocate 100MB\ntestcase1: fork inherit?\n expect: initial.self ~\u003d child.self\ninitial: self 103492 children 0\nfork child: self 103540 children 0\n\ntestcase2: fork inherit? (cont.)\n expect: initial.children ~\u003d 100MB, but child.children \u003d 0\ninitial: self 103540 children 103540\nchild: self 103564 children 0\n\ntestcase3: fork + malloc\n expect: child.self ~\u003d initial.self + 50MB\ninitial: self 103564 children 103564\nallocate +50MB\nfork child: self 154860 children 0\n\ntestcase4: grandchild maxrss\n expect: post_wait.children ~\u003d 300MB\ninitial: self 103564 children 154860\ngrandchild alloc 300MB\npost_wait: self 103564 children 308720\n\ntestcase5: zombie\n expect: pre_wait ~\u003d initial, IOW the zombie process is not accounted.\n post_wait ~\u003d 400MB, IOW wait() collect child\u0027s max_rss.\ninitial: self 103564 children 308720\nchild alloc 400MB\npre_wait: self 103564 children 308720\npost_wait: self 103564 children 411312\n\ntestcase6: SIG_IGN\n expect: initial ~\u003d after_zombie (child\u0027s 500MB alloc should be ignored).\ninitial: self 103564 children 411312\nchild alloc 500MB\nafter_zombie: self 103624 children 411312\n\ntestcase7: exec (without fork)\n expect: initial ~\u003d exec\ninitial: self 103624 children 411312\nexec: self 103624 children 411312\n\nLinux result (actual test result)\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\nallocate 100MB\ntestcase1: fork inherit?\n expect: initial.self ~\u003d child.self\ninitial: self 102848 children 0\nfork child: self 102572 children 0\n\ntestcase2: fork inherit? (cont.)\n expect: initial.children ~\u003d 100MB, but child.children \u003d 0\ninitial: self 102876 children 102644\nchild: self 102572 children 0\n\ntestcase3: fork + malloc\n expect: child.self ~\u003d initial.self + 50MB\ninitial: self 102876 children 102644\nallocate +50MB\nfork child: self 153804 children 0\n\ntestcase4: grandchild maxrss\n expect: post_wait.children ~\u003d 300MB\ninitial: self 102876 children 153864\ngrandchild alloc 300MB\npost_wait: self 102876 children 307536\n\ntestcase5: zombie\n expect: pre_wait ~\u003d initial, IOW the zombie process is not accounted.\n post_wait ~\u003d 400MB, IOW wait() collect child\u0027s max_rss.\ninitial: self 102876 children 307536\nchild alloc 400MB\npre_wait: self 102876 children 307536\npost_wait: self 102876 children 410076\n\ntestcase6: SIG_IGN\n expect: initial ~\u003d after_zombie (child\u0027s 500MB alloc should be ignored).\ninitial: self 102876 children 410076\nchild alloc 500MB\nafter_zombie: self 102880 children 410076\n\ntestcase7: exec (without fork)\n expect: initial ~\u003d exec\ninitial: self 102880 children 410076\nexec: self 102880 children 410076\n\nSigned-off-by: Jiri Pirko \u003cjpirko@redhat.com\u003e\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b28cfd2c0616e1b42acc6ee3c77ef6cc3873c510", "tree": "acf9ac40ca9ead4164a5e5f296064b107639b480", "parents": [ "a49c59c042c63b432307c1bbf7dac5a104c786e6" ], "author": { "name": "Andi Kleen", "email": "andi@firstfloor.org", "time": "Tue Sep 22 16:44:05 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:30 2009 -0700" }, "message": "kmap_types.h: rename D macro\n\nI tend to use a \u0027D\u0027 debugging macro a lot during debugging. When I define\nit before includes I often get conflicts with kmap_types.h\u0027s use of \u0027D\u0027\ntoo. It\u0027s not very nice when a global include pollutes the name space\nlike this.\n\nRename the kmap_types.h D to KMAP_D. It is only used temporarily in the\nheader so has no effect on anything else.\n\nSigned-off-by: Andi Kleen \u003cak@linux.intel.com\u003e\nReviewed-by: WANG Cong \u003cxiyou.wangcong@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": "a49c59c042c63b432307c1bbf7dac5a104c786e6", "tree": "443f9fab6d8907dec07a6c83fee2812c4bf43245", "parents": [ "d7d7561c908afa001ab0fc8212eee94731a213a6" ], "author": { "name": "Rolf Eike Beer", "email": "eike-kernel@sf-tec.de", "time": "Tue Sep 22 16:44:03 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:30 2009 -0700" }, "message": "Make sure the value in abs() does not get truncated if it is greater than 2^32\n\nabs() will truncate the input if is it outside the 2^32 range. Fix that\nby assuming `long\u0027 input.\n\nThis might generate worse code in the common case.\n\nSigned-off-by: Rolf Eike Beer \u003ceike-kernel@sf-tec.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "562787a5c32ccdf182de27793a83a9f2ee86cd77", "tree": "3308afd59d3b7449afa3d6a6cd624d06ce035e88", "parents": [ "515350b6fd041396f425180589e08812dd13615f" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Tue Sep 22 16:43:57 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:29 2009 -0700" }, "message": "anonfd: split interface into file creation and install\n\nSplit the anonfd interface into a bare file pointer creation one, and a\nfile pointer creation plus install one.\n\nThere are cases, like the usage of eventfds inside other kernel\ninterfaces, where the file pointer created by anonfd needs to be used\ninside the initialization of other structures.\n\nAs it is right now, as soon as anon_inode_getfd() returns, the kenrle can\nrace with userspace closing the newly installed file descriptor.\n\nThis patch, while keeping the old anon_inode_getfd(), introduces a new\nanon_inode_getfile() (whose services are reused in anon_inode_getfd())\nthat allows to split the file creation phase and the fd install one.\n\nOnce all the kernel structures are initialized, the code can call the\nproper fd_install().\n\nGregory manifested the need for something like this inside KVM.\n\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Alexander Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: James Morris \u003cjmorris@namei.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Gregory Haskins \u003cghaskins@novell.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nAcked-by: Roland Dreier \u003crolandd@cisco.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8c87df457cb58fe75b9b893007917cf8095660a0", "tree": "32446b329e4b83ae6158fa1505c36634a75dbfe8", "parents": [ "1fe72eaa0f46a0fa4cdcd8f3f7853b6d39469784" ], "author": { "name": "Jan Beulich", "email": "JBeulich@novell.com", "time": "Tue Sep 22 16:43:52 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:29 2009 -0700" }, "message": "BUILD_BUG_ON(): fix it and a couple of bogus uses of it\n\ngcc permitting variable length arrays makes the current construct used for\nBUILD_BUG_ON() useless, as that doesn\u0027t produce any diagnostic if the\ncontrolling expression isn\u0027t really constant. Instead, this patch makes\nit so that a bit field gets used here. Consequently, those uses where the\ncondition isn\u0027t really constant now also need fixing.\n\nNote that in the gfp.h, kmemcheck.h, and virtio_config.h cases\nMAYBE_BUILD_BUG_ON() really just serves documentation purposes - even if\nthe expression is compile time constant (__builtin_constant_p() yields\ntrue), the array is still deemed of variable length by gcc, and hence the\nwhole expression doesn\u0027t have the intended effect.\n\n[akpm@linux-foundation.org: make arch/sparc/include/asm/vio.h compile]\n[akpm@linux-foundation.org: more nonsensical assertions in tpm.c..]\nSigned-off-by: Jan Beulich \u003cjbeulich@novell.com\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Catalin Marinas \u003ccatalin.marinas@arm.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Rajiv Andrade \u003csrajiv@linux.vnet.ibm.com\u003e\nCc: Mimi Zohar \u003czohar@us.ibm.com\u003e\nCc: James Morris \u003cjmorris@namei.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "70867453092297be9afb2249e712a1f960ec0a09", "tree": "cf753b5467e3a93fafd6bb452292e6ec60c3de86", "parents": [ "02b51df1b07b4e9ca823c89284e704cadb323cd1" ], "author": { "name": "Roland Dreier", "email": "rdreier@cisco.com", "time": "Tue Sep 22 16:43:46 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:29 2009 -0700" }, "message": "printk_once(): use bool for boolean flag\n\nUsing the type bool (instead of int) for the __print_once flag in the\nprintk_once() macro matches the intent of the code better, and allows the\ncompiler to generate smaller code; eg a typical callsite with gcc 4.3.3 on\ni386:\n\nadd/remove: 0/0 grow/shrink: 0/2 up/down: 0/-6 (-6)\nfunction old new delta\nstatic.__print_once 4 1 -3\nget_cpu_vendor 146 143 -3\n\nSaving 6 bytes of object size per callsite by slightly improving the\nreadability of the source seems like a win to me.\n\nSigned-off-by: Roland Dreier \u003crolandd@cisco.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "02b51df1b07b4e9ca823c89284e704cadb323cd1", "tree": "c68de4809f261d742f597c686826cdc9d047fb4a", "parents": [ "88e9d34c727883d7d6f02cf1475b3ec98b8480c7" ], "author": { "name": "Scott James Remnant", "email": "scott@ubuntu.com", "time": "Tue Sep 22 16:43:44 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:29 2009 -0700" }, "message": "proc connector: add event for process becoming session leader\n\nThe act of a process becoming a session leader is a useful signal to a\nsupervising init daemon such as Upstart.\n\nWhile a daemon will normally do this as part of the process of becoming a\ndaemon, it is rare for its children to do so. When the children do, it is\nnearly always a sign that the child should be considered detached from the\nparent and not supervised along with it.\n\nThe poster-child example is OpenSSH; the per-login children call setsid()\nso that they may control the pty connected to them. If the primary daemon\ndies or is restarted, we do not want to consider the per-login children\nand want to respawn the primary daemon without killing the children.\n\nThis patch adds a new PROC_SID_EVENT and associated structure to the\nproc_event event_data union, it arranges for this to be emitted when the\nspecial PIDTYPE_SID pid is set.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Scott James Remnant \u003cscott@ubuntu.com\u003e\nAcked-by: Matt Helsley \u003cmatthltc@us.ibm.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Evgeniy Polyakov \u003cjohnpol@2ka.mipt.ru\u003e\nAcked-by: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "88e9d34c727883d7d6f02cf1475b3ec98b8480c7", "tree": "475f544536d52739e0929e7727cab5124e855a06", "parents": [ "b7ed698cc9d556306a4088c238e2ea9311ea2cb3" ], "author": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Tue Sep 22 16:43:43 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:29 2009 -0700" }, "message": "seq_file: constify seq_operations\n\nMake all seq_operations structs const, to help mitigate against\nrevectoring user-triggerable function pointers.\n\nThis is derived from the grsecurity patch, although generated from scratch\nbecause it\u0027s simpler than extracting the changes from there.\n\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nAcked-by: Casey Schaufler \u003ccasey@schaufler-ca.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "54fdade1c3332391948ec43530c02c4794a38172", "tree": "a44cfa6888bbe702321e4d4737786e5292d72eaa", "parents": [ "5c725138437837291db5c25f4a076ee852e806e3" ], "author": { "name": "Xiao Guangrong", "email": "xiaoguangrong@cn.fujitsu.com", "time": "Tue Sep 22 16:43:39 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:28 2009 -0700" }, "message": "generic-ipi: make struct call_function_data lockless\n\nThis patch can remove spinlock from struct call_function_data, the\nreasons are below:\n\n1: add a new interface for cpumask named cpumask_test_and_clear_cpu(),\n it can atomically test and clear specific cpu, we can use it instead\n of cpumask_test_cpu() and cpumask_clear_cpu() and no need data-\u003elock\n to protect those in generic_smp_call_function_interrupt().\n\n2: in smp_call_function_many(), after csd_lock() return, the current\u0027s\n cfd_data is deleted from call_function list, so it not have race\n between other cpus, then cfs_data is only used in\n smp_call_function_many() that must disable preemption and not from\n a hardware interrupthandler or from a bottom half handler to call,\n only the correspond cpu can use it, so it not have race in current\n cpu, no need cfs_data-\u003elock to protect it.\n\n3: after 1 and 2, cfs_data-\u003elock is only use to protect cfs_data-\u003erefs in\n generic_smp_call_function_interrupt(), so we can define cfs_data-\u003erefs\n to atomic_t, and no need cfs_data-\u003elock any more.\n\nSigned-off-by: Xiao Guangrong \u003cxiaoguangrong@cn.fujitsu.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nAcked-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n[akpm@linux-foundation.org: use atomic_dec_return()]\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1fd7317d02ec03c6fdf072317841287933d06d24", "tree": "b7ac4d511896dbb21c1b76a27f6c4d5b4cb6c7bb", "parents": [ "af91322ef3f29ae4114e736e2a72e28b4d619cf9" ], "author": { "name": "Nick Black", "email": "dank@qemfd.net", "time": "Tue Sep 22 16:43:33 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:28 2009 -0700" }, "message": "Move magic numbers into magic.h\n\nMove various magic-number definitions into magic.h.\n\nSigned-off-by: Nick Black \u003cdank@qemfd.net\u003e\nAcked-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Casey Schaufler \u003ccasey@schaufler-ca.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "af91322ef3f29ae4114e736e2a72e28b4d619cf9", "tree": "debba08531c7dd78b90b5d8f2c03f6bf7c9e7877", "parents": [ "3a3b6ed2235f2f619889dd6096e24b6d93bf3339" ], "author": { "name": "Dave Young", "email": "hidave.darkstar@gmail.com", "time": "Tue Sep 22 16:43:33 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:28 2009 -0700" }, "message": "printk: add printk_delay to make messages readable for some scenarios\n\nWhen syslog is not possible, at the same time there\u0027s no serial/net\nconsole available, it will be hard to read the printk messages. For\nexample oops/panic/warning messages in shutdown phase.\n\nAdd a printk delay feature, we can make each printk message delay some\nmilliseconds.\n\nSetting the delay by proc/sysctl interface: /proc/sys/kernel/printk_delay\n\nThe value range from 0 - 10000, default value is 0\n\n[akpm@linux-foundation.org: fix a few things]\nSigned-off-by: Dave Young \u003chidave.darkstar@gmail.com\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "fa081b00a80ef3f4575c99af6e97d29e1628cf51", "tree": "7124419e4f0bb4789d2c2e3b909dc1046c2bbe20", "parents": [ "7fa07729e439a6184bd824746d06a49cca553f15" ], "author": { "name": "Andrew Morton", "email": "akpm@linux-foundation.org", "time": "Tue Sep 22 16:43:27 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:27 2009 -0700" }, "message": "include/linux/kmemcheck.h: fix a trillion warnings\n\nof the form\n\ninclude/net/inet_sock.h:208: warning: ISO C90 forbids mixed declarations and code\n\nCc: Johannes Berg \u003cjohannes@sipsolutions.net\u003e\nAcked-by: Vegard Nossum \u003cvegard.nossum@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": "991d79b0d1255f89267a350b0048eca59f100cbb", "tree": "65ddf4160f959952d9f4955fda8844374768b83e", "parents": [ "a87e84b5cdfacf11af4e8a85c4bca9793658536f", "181f7c5dd3832763bdf2756b6d2d8a49bdf12791" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 08:07:54 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 08:07:54 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/vegard/kmemcheck\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/vegard/kmemcheck:\n kmemcheck: add missing braces to do-while in kmemcheck_annotate_bitfield\n kmemcheck: update documentation\n kmemcheck: depend on HAVE_ARCH_KMEMCHECK\n kmemcheck: remove useless check\n kmemcheck: remove duplicated #include\n" }, { "commit": "a87e84b5cdfacf11af4e8a85c4bca9793658536f", "tree": "f8e3cb2d339d8ed0e987d55f725e501730cdc81d", "parents": [ "342ff1a1b558ebbdb8cbd55ab6a63eca8b2473ca", "3c394ddaa7ea4205f933fd9b481166b2669368a9" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:54:33 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:54:33 2009 -0700" }, "message": "Merge branch \u0027for-2.6.32\u0027 of git://linux-nfs.org/~bfields/linux\n\n* \u0027for-2.6.32\u0027 of git://linux-nfs.org/~bfields/linux: (68 commits)\n nfsd4: nfsv4 clients should cross mountpoints\n nfsd: revise 4.1 status documentation\n sunrpc/cache: avoid variable over-loading in cache_defer_req\n sunrpc/cache: use list_del_init for the list_head entries in cache_deferred_req\n nfsd: return success for non-NFS4 nfs4_state_start\n nfsd41: Refactor create_client()\n nfsd41: modify nfsd4.1 backchannel to use new xprt class\n nfsd41: Backchannel: Implement cb_recall over NFSv4.1\n nfsd41: Backchannel: cb_sequence callback\n nfsd41: Backchannel: Setup sequence information\n nfsd41: Backchannel: Server backchannel RPC wait queue\n nfsd41: Backchannel: Add sequence arguments to callback RPC arguments\n nfsd41: Backchannel: callback infrastructure\n nfsd4: use common rpc_cred for all callbacks\n nfsd4: allow nfs4 state startup to fail\n SUNRPC: Defer the auth_gss upcall when the RPC call is asynchronous\n nfsd4: fix null dereference creating nfsv4 callback client\n nfsd4: fix whitespace in NFSPROC4_CLNT_CB_NULL definition\n nfsd41: sunrpc: add new xprt class for nfsv4.1 backchannel\n sunrpc/cache: simplify cache_fresh_locked and cache_fresh_unlocked.\n ...\n" }, { "commit": "342ff1a1b558ebbdb8cbd55ab6a63eca8b2473ca", "tree": "1f967f283dade6e03897169bb29513354f49f910", "parents": [ "50223e486cabdcf7e540e519da1f26bab3084e5d", "24ed7a97464db44592495f98cff8bcee02f92bc2" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:51:45 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:51:45 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (34 commits)\n trivial: fix typo in aic7xxx comment\n trivial: fix comment typo in drivers/ata/pata_hpt37x.c\n trivial: typo in kernel-parameters.txt\n trivial: fix typo in tracing documentation\n trivial: add __init/__exit macros in drivers/gpio/bt8xxgpio.c\n trivial: add __init macro/ fix of __exit macro location in ipmi_poweroff.c\n trivial: remove unnecessary semicolons\n trivial: Fix duplicated word \"options\" in comment\n trivial: kbuild: remove extraneous blank line after declaration of usage()\n trivial: improve help text for mm debug config options\n trivial: doc: hpfall: accept disk device to unload as argument\n trivial: doc: hpfall: reduce risk that hpfall can do harm\n trivial: SubmittingPatches: Fix reference to renumbered step\n trivial: fix typos \"man[ae]g?ment\" -\u003e \"management\"\n trivial: media/video/cx88: add __init/__exit macros to cx88 drivers\n trivial: fix typo in CONFIG_DEBUG_FS in gcov doc\n trivial: fix missing printk space in amd_k7_smp_check\n trivial: fix typo s/ketymap/keymap/ in comment\n trivial: fix typo \"to to\" in multiple files\n trivial: fix typos in comments s/DGBU/DBGU/\n ...\n" }, { "commit": "50223e486cabdcf7e540e519da1f26bab3084e5d", "tree": "c5eedda167c7ea83e342f80a9344646c7a99ba35", "parents": [ "e258b80e691f1f3ae83a60aa80eaf7322bd55ec4", "a2d693cf650f000ea22351484ee66cf4c2651eef" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:51:28 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:51:28 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:\n HID: Remove duplicate Kconfig entry\n HID: consolidate connect and disconnect into core code\n HID: fix non-atomic allocation in hid_input_report\n" }, { "commit": "abd6633c67925f90775bb74755f9c547e30f1f20", "tree": "9cb974febc1a30e3914720655cd406cea84c063e", "parents": [ "a976f150a6953da5ccbd40fa6dba3bd7d56f9f67" ], "author": { "name": "David Härdeman", "email": "david@hardeman.nu", "time": "Mon Sep 21 17:04:52 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:49 2009 -0700" }, "message": "pnp: add a shutdown method to pnp drivers\n\nThe shutdown method is used by the winbond cir driver to setup the\nhardware for wake-from-S5.\n\nSigned-off-by: Bjorn Helgaas \u003cbjorn.helgaas@hp.com\u003e\nSigned-off-by: David Härdeman \u003cdavid@hardeman.nu\u003e\nCc: Dmitry Torokhov \u003cdtor@mail.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8873c33483e62988ed886230aab71ef4c678f710", "tree": "441cdc48497b84c823330241ecff147642e136a4", "parents": [ "0ec48915e8bbb37dea3df85c41e4c3498b95664b" ], "author": { "name": "Daniel Mack", "email": "daniel@caiaq.de", "time": "Mon Sep 21 17:04:43 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:48 2009 -0700" }, "message": "lis3: add free-fall/wakeup function via platform_data\n\nThis offers a way for platforms to define flags and thresholds for the\nfree-fall/wakeup functions of the lis302d chips.\n\nMore registers needed to be seperated as they are specific to the\n\nSigned-off-by: Daniel Mack \u003cdaniel@caiaq.de\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nCc: Eric Piel \u003ceric.piel@tremplin-utc.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0ec48915e8bbb37dea3df85c41e4c3498b95664b", "tree": "33818fe22473c3019f10ce1f58f83e003ea4c5af", "parents": [ "0bf41d9f414a5cf558aff234a0ff486257537574" ], "author": { "name": "Daniel Mack", "email": "daniel@caiaq.de", "time": "Mon Sep 21 17:04:42 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:48 2009 -0700" }, "message": "lis3: fix typo\n\nBit 0x80 in CTRL_REG3 is an ACTIVE_LOW rather than an ACTIVE_HIGH\nfunction, I got that wrong during my last change.\n\nSigned-off-by: Daniel Mack \u003cdaniel@caiaq.de\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nCc: Eric Piel \u003ceric.piel@tremplin-utc.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "45b588d6e5cc172704bac0c998ce54873b149b22", "tree": "57a9d3478af60fcf6932c1f61b083b9203ef1ee8", "parents": [ "4af5a2f770cc8575840ccb1514ec76ecb592985c" ], "author": { "name": "David Rientjes", "email": "rientjes@google.com", "time": "Mon Sep 21 17:04:33 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:47 2009 -0700" }, "message": "flex_array: introduce DEFINE_FLEX_ARRAY\n\nFLEX_ARRAY_INIT(element_size, total_nr_elements) cannot determine if\neither parameter is valid, so flex arrays which are statically allocated\nwith this interface can easily become corrupted or reference beyond its\nallocated memory.\n\nThis removes FLEX_ARRAY_INIT() as a struct flex_array initializer since no\ninitializer may perform the required checking. Instead, the array is now\ndefined with a new interface:\n\n\tDEFINE_FLEX_ARRAY(name, element_size, total_nr_elements)\n\nThis may be prefixed with `static\u0027 for file scope.\n\nThis interface includes compile-time checking of the parameters to ensure\nthey are valid. Since the validity of both element_size and\ntotal_nr_elements depend on FLEX_ARRAY_BASE_SIZE and FLEX_ARRAY_PART_SIZE,\nthe kernel build will fail if either of these predefined values changes\nsuch that the array parameters are no longer valid.\n\nSince BUILD_BUG_ON() requires compile time constants, several of the\nstatic inline functions that were once local to lib/flex_array.c had to be\nmoved to include/linux/flex_array.h.\n\nSigned-off-by: David Rientjes \u003crientjes@google.com\u003e\nAcked-by: Dave Hansen \u003cdave@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": "4af5a2f770cc8575840ccb1514ec76ecb592985c", "tree": "7af18234d7d171a946925e65e987fd51648be3aa", "parents": [ "19da3dd157f8db6fe727ff268dab4791d55a6371" ], "author": { "name": "David Rientjes", "email": "rientjes@google.com", "time": "Mon Sep 21 17:04:31 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:47 2009 -0700" }, "message": "flex_array: add flex_array_shrink function\n\nAdd a new function to the flex_array API:\n\n\tint flex_array_shrink(struct flex_array *fa)\n\nThis function will free all unused second-level pages. Since elements are\nnow poisoned if they are not allocated with __GFP_ZERO, it\u0027s possible to\nidentify parts that consist solely of unused elements.\n\nflex_array_shrink() returns the number of pages freed.\n\nSigned-off-by: David Rientjes \u003crientjes@google.com\u003e\nCc: Dave Hansen \u003cdave@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": "19da3dd157f8db6fe727ff268dab4791d55a6371", "tree": "4259074638b384e765c73542d74dd8f44750068b", "parents": [ "e6de3988aa52debb25a427d085061f3bf1181d54" ], "author": { "name": "David Rientjes", "email": "rientjes@google.com", "time": "Mon Sep 21 17:04:31 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:47 2009 -0700" }, "message": "flex_array: poison free elements\n\nNewly initialized flex_array\u0027s and/or flex_array_part\u0027s are now poisoned\nwith a new poison value, FLEX_ARRAY_FREE. It\u0027s value is similar to\nPOISON_FREE used in the various slab allocators, but is different to\ndistinguish between flex array\u0027s poisoned kmem and slab allocator poisoned\nkmem.\n\nThis will allow us to identify flex_array_part\u0027s that only contain free\nelements (and free them with an addition to the flex_array API). This\ncould also be extended in the future to identify `get\u0027 uses on elements\nthat have not been `put\u0027.\n\nIf __GFP_ZERO is passed for a part\u0027s gfp mask, the poisoning is avoided.\nThese elements are considered to be in-use since they have been\ninitialized.\n\nSigned-off-by: David Rientjes \u003crientjes@google.com\u003e\nCc: Dave Hansen \u003cdave@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": "e6de3988aa52debb25a427d085061f3bf1181d54", "tree": "4a5dd6acac3e73049918c646bd977894335e5560", "parents": [ "2f30b1f9e1b612cdd1a17daeecf514229e8d6a5f" ], "author": { "name": "David Rientjes", "email": "rientjes@google.com", "time": "Mon Sep 21 17:04:30 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:47 2009 -0700" }, "message": "flex_array: add flex_array_clear function\n\nAdd a new function to the flex_array API:\n\n\tint flex_array_clear(struct flex_array *fa,\n\t\t\t\tunsigned int element_nr)\n\nThis function will zero the element at element_nr in the flex_array.\n\nAlthough this is equivalent to using flex_array_put() and passing a\npointer to zero\u0027d memory, flex_array_clear() does not require such a\npointer to memory that would most likely need to be allocated on the\ncaller\u0027s stack which could be significantly large depending on\nelement_size.\n\nSigned-off-by: David Rientjes \u003crientjes@google.com\u003e\nCc: Dave Hansen \u003cdave@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": "69d25870f20c4b2563304f2b79c5300dd60a067e", "tree": "cda2b2d65c1be95420c6ba92ae2d40fade4232c4", "parents": [ "45d80eea87c9f8292d2d33173d6866c0ec57238a" ], "author": { "name": "Arjan van de Ven", "email": "arjan@infradead.org", "time": "Mon Sep 21 17:04:08 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:45 2009 -0700" }, "message": "cpuidle: fix the menu governor to boost IO performance\n\nFix the menu idle governor which balances power savings, energy efficiency\nand performance impact.\n\nThe reason for a reworked governor is that there have been serious\nperformance issues reported with the existing code on Nehalem server\nsystems.\n\nTo show this I\u0027m sure Andrew wants to see benchmark results:\n(benchmark is \"fio\", \"no cstates\" is using \"idle\u003dpoll\")\n\n\t\tno cstates\tcurrent linux\tnew algorithm\n1 disk\t\t107 Mb/s\t85 Mb/s\t\t105 Mb/s\n2 disks\t\t215 Mb/s\t123 Mb/s\t209 Mb/s\n12 disks\t590 Mb/s\t320 Mb/s\t585 Mb/s\n\nIn various power benchmark measurements, no degredation was found by our\nmeasurement\u0026diagnostics team. Obviously a small percentage more power was\nused in the \"fio\" benchmark, due to the much higher performance.\n\nWhile it would be a novel idea to describe the new algorithm in this\ncommit message, I cheaped out and described it in comments in the code\ninstead.\n\n[changes since first post: spelling fixes from akpm, review feedback,\nfolded menu-tng into menu.c]\n\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nCc: Len Brown \u003clenb@kernel.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Yanmin Zhang \u003cyanmin_zhang@linux.intel.com\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3d2d827f5ca5e32816194119d5c980c7e04474a6", "tree": "fe0e84669f5f20e1dff8e3dc6b191b4d5dfc0145", "parents": [ "425fbf047cc70bb30dff368a6da02c8c2d229318" ], "author": { "name": "Michael S. Tsirkin", "email": "mst@redhat.com", "time": "Mon Sep 21 17:03:51 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:42 2009 -0700" }, "message": "mm: move use_mm/unuse_mm from aio.c to mm/\n\nAnyone who wants to do copy to/from user from a kernel thread, needs\nuse_mm (like what fs/aio has). Move that into mm/, to make reusing and\nexporting easier down the line, and make aio use it. Next intended user,\nbesides aio, will be vhost-net.\n\nAcked-by: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nSigned-off-by: Michael S. Tsirkin \u003cmst@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": "4e52780d41a741fb4861ae1df2413dd816ec11b1", "tree": "b3722349661ed0ce87841b110f568616892cf719", "parents": [ "90f72aa58bbf076b68e289fbd71eb829bc505923" ], "author": { "name": "Eric B Munson", "email": "ebmunson@us.ibm.com", "time": "Mon Sep 21 17:03:47 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:42 2009 -0700" }, "message": "hugetlb: add MAP_HUGETLB for mmaping pseudo-anonymous huge page regions\n\nAdd a flag for mmap that will be used to request a huge page region that\nwill look like anonymous memory to userspace. This is accomplished by\nusing a file on the internal vfsmount. MAP_HUGETLB is a modifier of\nMAP_ANONYMOUS and so must be specified with it. The region will behave\nthe same as a MAP_ANONYMOUS region using small pages.\n\n[akpm@linux-foundation.org: fix arch definitions of MAP_HUGETLB]\nSigned-off-by: Eric B Munson \u003cebmunson@us.ibm.com\u003e\nAcked-by: David Rientjes \u003crientjes@google.com\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Adam Litke \u003cagl@us.ibm.com\u003e\nCc: David Gibson \u003cdavid@gibson.dropbear.id.au\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: Arnd Bergmann \u003carnd@arndb.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "90f72aa58bbf076b68e289fbd71eb829bc505923", "tree": "992e5f59086cc77581fa10b52fb4a46fb3baf3f0", "parents": [ "6bfde05bf5c9682e255c6a2c669dc80f91af6296" ], "author": { "name": "Arnd Bergmann", "email": "arnd@arndb.de", "time": "Mon Sep 21 17:03:45 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:41 2009 -0700" }, "message": "mm: add MAP_HUGETLB for mmaping pseudo-anonymous huge page regions\n\nAdd a flag for mmap that will be used to request a huge page region that\nwill look like anonymous memory to user space. This is accomplished by\nusing a file on the internal vfsmount. MAP_HUGETLB is a modifier of\nMAP_ANONYMOUS and so must be specified with it. The region will behave\nthe same as a MAP_ANONYMOUS region using small pages.\n\nThe patch also adds the MAP_STACK flag, which was previously defined only\non some architectures but not on others. Since MAP_STACK is meant to be a\nhint only, architectures can define it without assigning a specific\nmeaning to it.\n\nSigned-off-by: Arnd Bergmann \u003carnd@arndb.de\u003e\nCc: Eric B Munson \u003cebmunson@us.ibm.com\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: \u003clinux-arch@vger.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": "6bfde05bf5c9682e255c6a2c669dc80f91af6296", "tree": "3ff62bb87fc12c1ce808a54f789c42c35be7c049", "parents": [ "f8dbf0a7a4c5d98e8b70da9f7f4f6a89f3b7a7bb" ], "author": { "name": "Eric B Munson", "email": "ebmunson@us.ibm.com", "time": "Mon Sep 21 17:03:43 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:41 2009 -0700" }, "message": "hugetlbfs: allow the creation of files suitable for MAP_PRIVATE on the vfs internal mount\n\nThis patchset adds a flag to mmap that allows the user to request that an\nanonymous mapping be backed with huge pages. This mapping will borrow\nfunctionality from the huge page shm code to create a file on the kernel\ninternal mount and use it to approximate an anonymous mapping. The\nMAP_HUGETLB flag is a modifier to MAP_ANONYMOUS and will not work without\nboth flags being preset.\n\nA new flag is necessary because there is no other way to hook into huge\npages without creating a file on a hugetlbfs mount which wouldn\u0027t be\nMAP_ANONYMOUS.\n\nTo userspace, this mapping will behave just like an anonymous mapping\nbecause the file is not accessible outside of the kernel.\n\nThis patchset is meant to simplify the programming model. Presently there\nis a large chunk of boiler platecode, contained in libhugetlbfs, required\nto create private, hugepage backed mappings. This patch set would allow\nuse of hugepages without linking to libhugetlbfs or having hugetblfs\nmounted.\n\nUnification of the VM code would provide these same benefits, but it has\nbeen resisted each time that it has been suggested for several reasons: it\nwould break PAGE_SIZE assumptions across the kernel, it makes page-table\nabstractions really expensive, and it does not provide any benefit on\narchitectures that do not support huge pages, incurring fast path\npenalties without providing any benefit on these architectures.\n\nThis patch:\n\nThere are two means of creating mappings backed by huge pages:\n\n 1. mmap() a file created on hugetlbfs\n 2. Use shm which creates a file on an internal mount which essentially\n maps it MAP_SHARED\n\nThe internal mount is only used for shared mappings but there is very\nlittle that stops it being used for private mappings. This patch extends\nhugetlbfs_file_setup() to deal with the creation of files that will be\nmapped MAP_PRIVATE on the internal hugetlbfs mount. This extended API is\nused in a subsequent patch to implement the MAP_HUGETLB mmap() flag.\n\nSigned-off-by: Eric Munson \u003cebmunson@us.ibm.com\u003e\nAcked-by: David Rientjes \u003crientjes@google.com\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Adam Litke \u003cagl@us.ibm.com\u003e\nCc: David Gibson \u003cdavid@gibson.dropbear.id.au\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3f96b79ad96263cc0ece7bb340cddf9b2ddfb1b3", "tree": "0da9828c16543164f1b055fd927ea3e222ca05e5", "parents": [ "cdf7b3418ad5a8783efe8f9124023d9b869fec0f" ], "author": { "name": "Hugh Dickins", "email": "hugh.dickins@tiscali.co.uk", "time": "Mon Sep 21 17:03:37 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:41 2009 -0700" }, "message": "tmpfs: depend on shmem\n\nCONFIG_SHMEM off gives you (ramfs masquerading as) tmpfs, even when\nCONFIG_TMPFS is off: that\u0027s a little anomalous, and I\u0027d intended to make\nmore sense of it by removing CONFIG_TMPFS altogether, always enabling its\ncode when CONFIG_SHMEM; but so many defconfigs have CONFIG_SHMEM on\nCONFIG_TMPFS off that we\u0027d better leave that as is.\n\nBut there is no point in asking for CONFIG_TMPFS if CONFIG_SHMEM is off:\nmake TMPFS depend on SHMEM, which also prevents TMPFS_POSIX_ACL\nshmem_acl.o being pointlessly built into the kernel when SHMEM is off.\n\nAnd a selfish change, to prevent the world from being rebuilt when I\nswitch between CONFIG_SHMEM on and off: the only CONFIG_SHMEM in the\nheader files is mm.h shmem_lock() - give that a shmem.c stub instead.\n\nSigned-off-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nAcked-by: Matt Mackall \u003cmpm@selenic.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "58fa879e1e640a1856f736b418984ebeccee1c95", "tree": "dc37bce8379e29c46e79f105cc71d137b14965cf", "parents": [ "a13ea5b759645a0779edc6dbfec9abfd83220844" ], "author": { "name": "Hugh Dickins", "email": "hugh.dickins@tiscali.co.uk", "time": "Mon Sep 21 17:03:31 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:40 2009 -0700" }, "message": "mm: FOLL flags for GUP flags\n\n__get_user_pages() has been taking its own GUP flags, then processing\nthem into FOLL flags for follow_page(). Though oddly named, the FOLL\nflags are more widely used, so pass them to __get_user_pages() now.\nSorry, VM flags, VM_FAULT flags and FAULT_FLAGs are still distinct.\n\n(The patch to __get_user_pages() looks peculiar, with both gup_flags\nand foll_flags: the gup_flags remain constant; but as before there\u0027s\nan exceptional case, out of scope of the patch, in which foll_flags\nper page have FOLL_WRITE masked off.)\n\nSigned-off-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\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": "2a15efc953b26ad57d7d38b9e6782d57e53b4ab2", "tree": "f4d04903b3303e80460d2fa3f38da2b7eea82d22", "parents": [ "8e4b9a60718970bbc02dfd3abd0b956ab65af231" ], "author": { "name": "Hugh Dickins", "email": "hugh.dickins@tiscali.co.uk", "time": "Mon Sep 21 17:03:27 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:40 2009 -0700" }, "message": "mm: follow_hugetlb_page flags\n\nfollow_hugetlb_page() shouldn\u0027t be guessing about the coredump case\neither: pass the foll_flags down to it, instead of just the write bit.\n\nRemove that obscure huge_zeropage_ok() test. The decision is easy,\nthough unlike the non-huge case - here vm_ops-\u003efault is always set.\nBut we know that a fault would serve up zeroes, unless there\u0027s\nalready a hugetlbfs pagecache page to back the range.\n\n(Alternatively, since hugetlb pages aren\u0027t swapped out under pressure,\nyou could save more dump space by arguing that a page not yet faulted\ninto this process cannot be relevant to the dump; but that would be\nmore surprising.)\n\nSigned-off-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\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": "8e4b9a60718970bbc02dfd3abd0b956ab65af231", "tree": "4c19152cea19882071a74f92c0cf6a16d5711f41", "parents": [ "f3e8fccd06d27773186a0094371daf2d84c79469" ], "author": { "name": "Hugh Dickins", "email": "hugh.dickins@tiscali.co.uk", "time": "Mon Sep 21 17:03:26 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:40 2009 -0700" }, "message": "mm: FOLL_DUMP replace FOLL_ANON\n\nThe \"FOLL_ANON optimization\" and its use_zero_page() test have caused\nconfusion and bugs: why does it test VM_SHARED? for the very good but\nunsatisfying reason that VMware crashed without. As we look to maybe\nreinstating anonymous use of the ZERO_PAGE, we need to sort this out.\n\nEasily done: it\u0027s silly for __get_user_pages() and follow_page() to\nbe guessing whether it\u0027s safe to assume that they\u0027re being used for\na coredump (which can take a shortcut snapshot where other uses must\nhandle a fault) - just tell them with GUP_FLAGS_DUMP and FOLL_DUMP.\n\nget_dump_page() doesn\u0027t even want a ZERO_PAGE: an error suits fine.\n\nSigned-off-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nAcked-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nReviewed-by: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f3e8fccd06d27773186a0094371daf2d84c79469", "tree": "46e652e6ac3588a26c6d3e38ea10274eb3fc2ea8", "parents": [ "1c3aff1ceec2cc86810e2690e67873ff0c505862" ], "author": { "name": "Hugh Dickins", "email": "hugh.dickins@tiscali.co.uk", "time": "Mon Sep 21 17:03:25 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:40 2009 -0700" }, "message": "mm: add get_dump_page\n\nIn preparation for the next patch, add a simple get_dump_page(addr)\ninterface for the CONFIG_ELF_CORE dumpers to use, instead of calling\nget_user_pages() directly. They\u0027re not interested in errors: they\njust want to use holes as much as possible, to save space and make\nsure that the data is aligned where the headers said it would be.\n\nOh, and don\u0027t use that horrid DUMP_SEEK(off) macro!\n\nSigned-off-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\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": "5f8dcc21211a3d4e3a7a5ca366b469fb88117f61", "tree": "4bbb1b55c7787462fe313c7c003e77823c032422", "parents": [ "5d863b89688e5811cd9e5bd0082cb38abe03adf3" ], "author": { "name": "Mel Gorman", "email": "mel@csn.ul.ie", "time": "Mon Sep 21 17:03:19 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:39 2009 -0700" }, "message": "page-allocator: split per-cpu list into one-list-per-migrate-type\n\nThe following two patches remove searching in the page allocator fast-path\nby maintaining multiple free-lists in the per-cpu structure. At the time\nthe search was introduced, increasing the per-cpu structures would waste a\nlot of memory as per-cpu structures were statically allocated at\ncompile-time. This is no longer the case.\n\nThe patches are as follows. They are based on mmotm-2009-08-27.\n\nPatch 1 adds multiple lists to struct per_cpu_pages, one per\n\tmigratetype that can be stored on the PCP lists.\n\nPatch 2 notes that the pcpu drain path check empty lists multiple times. The\n\tpatch reduces the number of checks by maintaining a count of free\n\tlists encountered. Lists containing pages will then free multiple\n\tpages in batch\n\nThe patches were tested with kernbench, netperf udp/tcp, hackbench and\nsysbench. The netperf tests were not bound to any CPU in particular and\nwere run such that the results should be 99% confidence that the reported\nresults are within 1% of the estimated mean. sysbench was run with a\npostgres background and read-only tests. Similar to netperf, it was run\nmultiple times so that it\u0027s 99% confidence results are within 1%. The\npatches were tested on x86, x86-64 and ppc64 as\n\nx86:\tIntel Pentium D 3GHz with 8G RAM (no-brand machine)\n\tkernbench\t- No significant difference, variance well within noise\n\tnetperf-udp\t- 1.34% to 2.28% gain\n\tnetperf-tcp\t- 0.45% to 1.22% gain\n\thackbench\t- Small variances, very close to noise\n\tsysbench\t- Very small gains\n\nx86-64:\tAMD Phenom 9950 1.3GHz with 8G RAM (no-brand machine)\n\tkernbench\t- No significant difference, variance well within noise\n\tnetperf-udp\t- 1.83% to 10.42% gains\n\tnetperf-tcp\t- No conclusive until buffer \u003e\u003d PAGE_SIZE\n\t\t\t\t4096\t+15.83%\n\t\t\t\t8192\t+ 0.34% (not significant)\n\t\t\t\t16384\t+ 1%\n\thackbench\t- Small gains, very close to noise\n\tsysbench\t- 0.79% to 1.6% gain\n\nppc64:\tPPC970MP 2.5GHz with 10GB RAM (it\u0027s a terrasoft powerstation)\n\tkernbench\t- No significant difference, variance well within noise\n\tnetperf-udp\t- 2-3% gain for almost all buffer sizes tested\n\tnetperf-tcp\t- losses on small buffers, gains on larger buffers\n\t\t\t possibly indicates some bad caching effect.\n\thackbench\t- No significant difference\n\tsysbench\t- 2-4% gain\n\nThis patch:\n\nCurrently the per-cpu page allocator searches the PCP list for pages of\nthe correct migrate-type to reduce the possibility of pages being\ninappropriate placed from a fragmentation perspective. This search is\npotentially expensive in a fast-path and undesirable. Splitting the\nper-cpu list into multiple lists increases the size of a per-cpu structure\nand this was potentially a major problem at the time the search was\nintroduced. These problem has been mitigated as now only the necessary\nnumber of structures is allocated for the running system.\n\nThis patch replaces a list search in the per-cpu allocator with one list\nper migrate type. The potential snag with this approach is when bulk\nfreeing pages. We round-robin free pages based on migrate type which has\nlittle bearing on the cache hotness of the page and potentially checks\nempty lists repeatedly in the event the majority of PCP pages are of one\ntype.\n\nSigned-off-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nAcked-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nCc: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "28b83c5193e7ab951e402252278f2cc79dc4d298", "tree": "10080e8d3957c2a03f8419ab44c9ecb0ffcdaee0", "parents": [ "f168e1b6390e2d79cf57e48e6ae6d9b0a9e2851a" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Mon Sep 21 17:03:13 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:39 2009 -0700" }, "message": "oom: move oom_adj value from task_struct to signal_struct\n\nCurrently, OOM logic callflow is here.\n\n __out_of_memory()\n select_bad_process() for each task\n badness() calculate badness of one task\n oom_kill_process() search child\n oom_kill_task() kill target task and mm shared tasks with it\n\nexample, process-A have two thread, thread-A and thread-B and it have very\nfat memory and each thread have following oom_adj and oom_score.\n\n thread-A: oom_adj \u003d OOM_DISABLE, oom_score \u003d 0\n thread-B: oom_adj \u003d 0, oom_score \u003d very-high\n\nThen, select_bad_process() select thread-B, but oom_kill_task() refuse\nkill the task because thread-A have OOM_DISABLE. Thus __out_of_memory()\ncall select_bad_process() again. but select_bad_process() select the same\ntask. It mean kernel fall in livelock.\n\nThe fact is, select_bad_process() must select killable task. otherwise\nOOM logic go into livelock.\n\nAnd root cause is, oom_adj shouldn\u0027t be per-thread value. it should be\nper-process value because OOM-killer kill a process, not thread. Thus\nThis patch moves oomkilladj (now more appropriately named oom_adj) from\nstruct task_struct to struct signal_struct. it naturally prevent\nselect_bad_process() choose wrong task.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@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": "f86296317434b21585e229f6c49a33cb9ebab4d3", "tree": "d4fb05d4aee1a8e373ec053e7316dc9847b2c417", "parents": [ "1a8670a29b5277cbe601f74ab63d2c5211fb3005" ], "author": { "name": "Wu Fengguang", "email": "fengguang.wu@intel.com", "time": "Mon Sep 21 17:03:11 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:39 2009 -0700" }, "message": "mm: do batched scans for mem_cgroup\n\nFor mem_cgroup, shrink_zone() may call shrink_list() with nr_to_scan\u003d1, in\nwhich case shrink_list() _still_ calls isolate_pages() with the much\nlarger SWAP_CLUSTER_MAX. It effectively scales up the inactive list scan\nrate by up to 32 times.\n\nFor example, with 16k inactive pages and DEF_PRIORITY\u003d12, (16k \u003e\u003e 12)\u003d4.\nSo when shrink_zone() expects to scan 4 pages in the active/inactive list,\nthe active list will be scanned 4 pages, while the inactive list will be\n(over) scanned SWAP_CLUSTER_MAX\u003d32 pages in effect. And that could break\nthe balance between the two lists.\n\nIt can further impact the scan of anon active list, due to the anon\nactive/inactive ratio rebalance logic in balance_pgdat()/shrink_zone():\n\ninactive anon list over scanned \u003d\u003e inactive_anon_is_low() \u003d\u003d TRUE\n \u003d\u003e shrink_active_list()\n \u003d\u003e active anon list over scanned\n\nSo the end result may be\n\n- anon inactive \u003d\u003e over scanned\n- anon active \u003d\u003e over scanned (maybe not as much)\n- file inactive \u003d\u003e over scanned\n- file active \u003d\u003e under scanned (relatively)\n\nThe accesses to nr_saved_scan are not lock protected and so not 100%\naccurate, however we can tolerate small errors and the resulted small\nimbalanced scan rates between zones.\n\nCc: Rik van Riel \u003criel@redhat.com\u003e\nReviewed-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nAcked-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nReviewed-by: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1a8670a29b5277cbe601f74ab63d2c5211fb3005", "tree": "1b2ca94009c1f3d7ff05bbda3b8956631e3f38d9", "parents": [ "0b21767637c3c99890a248fe47ac414e51cf5eb7" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Mon Sep 21 17:03:09 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:38 2009 -0700" }, "message": "oom: move oom_killer_enable()/oom_killer_disable to where they belong\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nAcked-by: David Rientjes \u003crientjes@google.com\u003e\nReviewed-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": "2c85f51d222ccdd8c401d77a36b723a89156810d", "tree": "fb94c6ea243504043e434f0a7d26cfd4831b33a9", "parents": [ "3c1596efe167322dae87f8390d36f91ce2d7f936" ], "author": { "name": "Jan Beulich", "email": "JBeulich@novell.com", "time": "Mon Sep 21 17:03:07 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:38 2009 -0700" }, "message": "mm: also use alloc_large_system_hash() for the PID hash table\n\nThis is being done by allowing boot time allocations to specify that they\nmay want a sub-page sized amount of memory.\n\nOverall this seems more consistent with the other hash table allocations,\nand allows making two supposedly mm-only variables really mm-only\n(nr_{kernel,all}_pages).\n\nSigned-off-by: Jan Beulich \u003cjbeulich@novell.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.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": "4481374ce88ba8f460c8b89f2572027bd27057d0", "tree": "6896601b6a1da0e3e932ffa75fcff966c834c02c", "parents": [ "4738e1b9cf8f9e28d7de080a5e6ce5d0095ea18f" ], "author": { "name": "Jan Beulich", "email": "JBeulich@novell.com", "time": "Mon Sep 21 17:03:05 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:38 2009 -0700" }, "message": "mm: replace various uses of num_physpages by totalram_pages\n\nSizing of memory allocations shouldn\u0027t depend on the number of physical\npages found in a system, as that generally includes (perhaps a huge amount\nof) non-RAM pages. The amount of what actually is usable as storage\nshould instead be used as a basis here.\n\nSome of the calculations (i.e. those not intending to use high memory)\nshould likely even use (totalram_pages - totalhigh_pages).\n\nSigned-off-by: Jan Beulich \u003cjbeulich@novell.com\u003e\nAcked-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Dave Airlie \u003cairlied@linux.ie\u003e\nCc: Kyle McMartin \u003ckyle@mcmartin.ca\u003e\nCc: Jeremy Fitzhardinge \u003cjeremy@goop.org\u003e\nCc: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Patrick McHardy \u003ckaber@trash.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "edcf4748cd56adcdf0856cc99ef108a4ea3ac7fe", "tree": "317d477d08dea82f5eef2e9c17294d0f0639ea81", "parents": [ "6c0b13519d1c755d874e82c8fb8a6dcef0ee402c" ], "author": { "name": "Johannes Weiner", "email": "hannes@cmpxchg.org", "time": "Mon Sep 21 17:02:59 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:38 2009 -0700" }, "message": "mm: return boolean from page_has_private()\n\nMake page_has_private() return a true boolean value and remove the double\nnegations from the two callsites using it for arithmetic.\n\nSigned-off-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nReviewed-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nReviewed-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": "6c0b13519d1c755d874e82c8fb8a6dcef0ee402c", "tree": "0fe6e6902a488ad6c59ecee971fe64c81edbcce3", "parents": [ "401a8e1c1670085b8177330ca47d4f7c4ac88761" ], "author": { "name": "Johannes Weiner", "email": "hannes@cmpxchg.org", "time": "Mon Sep 21 17:02:59 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:37 2009 -0700" }, "message": "mm: return boolean from page_is_file_cache()\n\npage_is_file_cache() has been used for both boolean checks and LRU\narithmetic, which was always a bit weird.\n\nNow that page_lru_base_type() exists for LRU arithmetic, make\npage_is_file_cache() a real predicate function and adjust the\nboolean-using callsites to drop those pesky double negations.\n\nSigned-off-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nReviewed-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": "401a8e1c1670085b8177330ca47d4f7c4ac88761", "tree": "5883daaed42fa2a186e5769bab1c10535dc39a41", "parents": [ "b7c46d151cb82856a429709d1227ba1648028232" ], "author": { "name": "Johannes Weiner", "email": "hannes@cmpxchg.org", "time": "Mon Sep 21 17:02:58 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:35 2009 -0700" }, "message": "mm: introduce page_lru_base_type()\n\nInstead of abusing page_is_file_cache() for LRU list index arithmetic, add\nanother helper with a more appropriate name and convert the non-boolean\nusers of page_is_file_cache() accordingly.\n\nThis new helper gives the LRU base type a page is supposed to live on,\ninactive anon or inactive file.\n\n[hugh.dickins@tiscali.co.uk: convert del_page_from_lru() also]\nSigned-off-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nReviewed-by: Rik van Riel \u003criel@redhat.com\u003e\nCc: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nReviewed-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": "bba78819548a59a52e60f0b259997bbd011164ae", "tree": "1d788069848ba86906269d8eb8b1b13119260e5a", "parents": [ "bbba809e96539672f775a3d70102657d05816a5b" ], "author": { "name": "Sage Weil", "email": "sage@newdream.net", "time": "Mon Sep 21 17:02:56 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:35 2009 -0700" }, "message": "mm: remove broken \u0027kzalloc\u0027 mempool\n\nThe kzalloc mempool zeros items when they are initially allocated, but\ndoes not rezero used items that are returned to the pool. Consequently\nmempool_alloc()s may return non-zeroed memory.\n\nSince there are/were only two in-tree users for\nmempool_create_kzalloc_pool(), and \u0027fixing\u0027 this in a way that will\nre-zero used (but not new) items before first use is non-trivial, just\nremove it.\n\nSigned-off-by: Sage Weil \u003csage@newdream.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0d3d062a6e289e065bd0aa537a6806a1806bf8aa", "tree": "9895e9cb48674d072885af3424e1ef145ec81f28", "parents": [ "e0fff1bd12469c45dab088e353d8882761387bb6" ], "author": { "name": "Mel Gorman", "email": "mel@csn.ul.ie", "time": "Mon Sep 21 17:02:44 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:34 2009 -0700" }, "message": "tracing, page-allocator: add trace event for page traffic related to the buddy lists\n\nThe page allocation trace event reports that a page was successfully\nallocated but it does not specify where it came from. When analysing\nperformance, it can be important to distinguish between pages coming from\nthe per-cpu allocator and pages coming from the buddy lists as the latter\nrequires the zone lock to the taken and more data structures to be\nexamined.\n\nThis patch adds a trace event for __rmqueue reporting when a page is being\nallocated from the buddy lists. It distinguishes between being called to\nrefill the per-cpu lists or whether it is a high-order allocation.\nSimilarly, this patch adds an event to catch when the PCP lists are being\ndrained a little and pages are going back to the buddy lists.\n\nThis is trickier to draw conclusions from but high activity on those\nevents could explain why there were a large number of cache misses on a\npage-allocator-intensive workload. The coalescing and splitting of\nbuddies involves a lot of writing of page metadata and cache line bounces\nnot to mention the acquisition of an interrupt-safe lock necessary to\nenter this path.\n\n[akpm@linux-foundation.org: fix build]\nSigned-off-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Larry Woodman \u003clwoodman@redhat.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Li Ming Chun \u003cmacli@brc.ubc.ca\u003e\nReviewed-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": "e0fff1bd12469c45dab088e353d8882761387bb6", "tree": "dc120a7597bbd4f3841f951346dbe1f7b85dd3fb", "parents": [ "4b4f278c030aa4b6ee0915f396e9a9478d92d610" ], "author": { "name": "Mel Gorman", "email": "mel@csn.ul.ie", "time": "Mon Sep 21 17:02:42 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:34 2009 -0700" }, "message": "tracing, page-allocator: add trace events for anti-fragmentation falling back to other migratetypes\n\nFragmentation avoidance depends on being able to use free pages from lists\nof the appropriate migrate type. In the event this is not possible,\n__rmqueue_fallback() selects a different list and in some circumstances\nchange the migratetype of the pageblock. Simplistically, the more times\nthis event occurs, the more likely that fragmentation will be a problem\nlater for hugepage allocation at least but there are other considerations\nsuch as the order of page being split to satisfy the allocation.\n\nThis patch adds a trace event for __rmqueue_fallback() that reports what\npage is being used for the fallback, the orders of relevant pages, the\ndesired migratetype and the migratetype of the lists being used, whether\nthe pageblock changed type and whether this event is important with\nrespect to fragmentation avoidance or not. This information can be used\nto help analyse fragmentation avoidance and help decide whether\nmin_free_kbytes should be increased or not.\n\nSigned-off-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Larry Woodman \u003clwoodman@redhat.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Li Ming Chun \u003cmacli@brc.ubc.ca\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4b4f278c030aa4b6ee0915f396e9a9478d92d610", "tree": "10825c2d197977bc9080093a6ecbd3ce80723876", "parents": [ "38a398572fa2d8124f7479e40db581b5b72719c9" ], "author": { "name": "Mel Gorman", "email": "mel@csn.ul.ie", "time": "Mon Sep 21 17:02:41 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:34 2009 -0700" }, "message": "tracing, page-allocator: add trace events for page allocation and page freeing\n\nThis patch adds trace events for the allocation and freeing of pages,\nincluding the freeing of pagevecs. Using the events, it will be known\nwhat struct page and pfns are being allocated and freed and what the call\nsite was in many cases.\n\nThe page alloc tracepoints be used as an indicator as to whether the\nworkload was heavily dependant on the page allocator or not. You can make\na guess based on vmstat but you can\u0027t get a per-process breakdown.\nDepending on the call path, the call_site for page allocation may be\n__get_free_pages() instead of a useful callsite. Instead of passing down\na return address similar to slab debugging, the user should enable the\nstacktrace and seg-addr options to get a proper stack trace.\n\nThe pagevec free tracepoint has a different usecase. It can be used to\nget a idea of how many pages are being dumped off the LRU and whether it\nis kswapd doing the work or a process doing direct reclaim.\n\nSigned-off-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Larry Woodman \u003clwoodman@redhat.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Li Ming Chun \u003cmacli@brc.ubc.ca\u003e\nReviewed-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": "38a398572fa2d8124f7479e40db581b5b72719c9", "tree": "cad43f1cb00b760507278cc7b55f8e7fa4ab4fab", "parents": [ "cc013a88906bad9d2832d6316de1c7dbc1c2a794" ], "author": { "name": "Mel Gorman", "email": "mel@csn.ul.ie", "time": "Mon Sep 21 17:02:39 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:34 2009 -0700" }, "message": "page-allocator: remove dead function free_cold_page()\n\nThe function free_cold_page() has no callers so delete it.\n\nSigned-off-by: 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": "35451beecbd7c86ce3249d543594517a5fe9a0cd", "tree": "e72759e6e6fcd142ab85c607a9b3dd3e1c016eed", "parents": [ "a913e182ab9484308e870af37a14d372742d53b0" ], "author": { "name": "Hugh Dickins", "email": "hugh.dickins@tiscali.co.uk", "time": "Mon Sep 21 17:02:27 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:33 2009 -0700" }, "message": "ksm: unmerge is an origin of OOMs\n\nJust as the swapoff system call allocates many pages of RAM to various\nprocesses, perhaps triggering OOM, so \"echo 2 \u003e/sys/kernel/mm/ksm/run\"\n(unmerge) is liable to allocate many pages of RAM to various processes,\nperhaps triggering OOM; and each is normally run from a modest admin\nprocess (swapoff or shell), easily repeated until it succeeds.\n\nSo treat unmerge_and_remove_all_rmap_items() in the same way that we treat\ntry_to_unuse(): generalize PF_SWAPOFF to PF_OOM_ORIGIN, and bracket both\nwith that, to ask the OOM killer to kill them first, to prevent them from\nspawning more and more OOM kills.\n\nSigned-off-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nAcked-by: Izik Eidus \u003cieidus@redhat.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": "a913e182ab9484308e870af37a14d372742d53b0", "tree": "0fca5598aeba4c53999ec46b6b82b46f9a981965", "parents": [ "8314c4f24a0a5c9b1f7544e9fa83a1d5367ddaa7" ], "author": { "name": "Hugh Dickins", "email": "hugh.dickins@tiscali.co.uk", "time": "Mon Sep 21 17:02:26 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:33 2009 -0700" }, "message": "ksm: clean up obsolete references\n\nA few cleanups, given the munlock fix: the comment on ksm_test_exit() no\nlonger applies, and it can be made private to ksm.c; there\u0027s no more\nreference to mmu_gather or tlb.h, and mmap.c doesn\u0027t need ksm.h.\n\nSigned-off-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nAcked-by: Izik Eidus \u003cieidus@redhat.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": "1c2fb7a4c2ca7a958b02bc1e615d0254990bba8d", "tree": "489a97bd453b8002f2234f7e736548103315fa38", "parents": [ "9ba6929480088a85c1ff60a4b1f1c9fc80dbd2b7" ], "author": { "name": "Andrea Arcangeli", "email": "aarcange@redhat.com", "time": "Mon Sep 21 17:02:22 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:32 2009 -0700" }, "message": "ksm: fix deadlock with munlock in exit_mmap\n\nRawhide users have reported hang at startup when cryptsetup is run: the\nsame problem can be simply reproduced by running a program int main() {\nmlockall(MCL_CURRENT | MCL_FUTURE); return 0; }\n\nThe problem is that exit_mmap() applies munlock_vma_pages_all() to\nclean up VM_LOCKED areas, and its current implementation (stupidly)\ntries to fault in absent pages, for example where PROT_NONE prevented\nthem being faulted in when mlocking. Whereas the \"ksm: fix oom\ndeadlock\" patch, knowing there\u0027s a race by which KSM might try to fault\nin pages after exit_mmap() had finally zapped the range, backs out of\nsuch faults doing nothing when its ksm_test_exit() notices mm_users 0.\n\nSo revert that part of \"ksm: fix oom deadlock\" which moved the\nksm_exit() call from before exit_mmap() to the middle of exit_mmap();\nand remove those ksm_test_exit() checks from the page fault paths, so\nallowing the munlocking to proceed without interference.\n\nksm_exit, if there are rmap_items still chained on this mm slot, takes\nmmap_sem write side: so preventing KSM from working on an mm while\nexit_mmap runs. And KSM will bail out as soon as it notices that\nmm_users is already zero, thanks to its internal ksm_test_exit checks.\nSo that when a task is killed by OOM killer or the user, KSM will not\nindefinitely prevent it from running exit_mmap to release its memory.\n\nThis does break a part of what \"ksm: fix oom deadlock\" was trying to\nachieve. When unmerging KSM (echo 2 \u003e/sys/kernel/mm/ksm), and even\nwhen ksmd itself has to cancel a KSM page, it is possible that the\nfirst OOM-kill victim would be the KSM process being faulted: then its\nmemory won\u0027t be freed until a second victim has been selected (freeing\nmemory for the unmerging fault to complete).\n\nBut the OOM killer is already liable to kill a second victim once the\nintended victim\u0027s p-\u003emm goes to NULL: so there\u0027s not much point in\nrejecting this KSM patch before fixing that OOM behaviour. It is very\nmuch more important to allow KSM users to boot up, than to haggle over\nan unlikely and poorly supported OOM case.\n\nWe also intend to fix munlocking to not fault pages: at which point\nthis patch _could_ be reverted; though that would be controversial, so\nwe hope to find a better solution.\n\nSigned-off-by: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nAcked-by: Justin M. Forbes \u003cjforbes@redhat.com\u003e\nAcked-for-now-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: Izik Eidus \u003cieidus@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": "9ba6929480088a85c1ff60a4b1f1c9fc80dbd2b7", "tree": "39aab8cdffae598b55e35c578f70820712286ab4", "parents": [ "cd551f97519d35855be5a8720a47cc802ee4fd06" ], "author": { "name": "Hugh Dickins", "email": "hugh.dickins@tiscali.co.uk", "time": "Mon Sep 21 17:02:20 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:32 2009 -0700" }, "message": "ksm: fix oom deadlock\n\nThere\u0027s a now-obvious deadlock in KSM\u0027s out-of-memory handling:\nimagine ksmd or KSM_RUN_UNMERGE handling, holding ksm_thread_mutex,\ntrying to allocate a page to break KSM in an mm which becomes the\nOOM victim (quite likely in the unmerge case): it\u0027s killed and goes\nto exit, and hangs there waiting to acquire ksm_thread_mutex.\n\nClearly we must not require ksm_thread_mutex in __ksm_exit, simple\nthough that made everything else: perhaps use mmap_sem somehow?\nAnd part of the answer lies in the comments on unmerge_ksm_pages:\n__ksm_exit should also leave all the rmap_item removal to ksmd.\n\nBut there\u0027s a fundamental problem, that KSM relies upon mmap_sem to\nguarantee the consistency of the mm it\u0027s dealing with, yet exit_mmap\ntears down an mm without taking mmap_sem. And bumping mm_users won\u0027t\nhelp at all, that just ensures that the pages the OOM killer assumes\nare on their way to being freed will not be freed.\n\nThe best answer seems to be, to move the ksm_exit callout from just\nbefore exit_mmap, to the middle of exit_mmap: after the mm\u0027s pages\nhave been freed (if the mmu_gather is flushed), but before its page\ntables and vma structures have been freed; and down_write,up_write\nmmap_sem there to serialize with KSM\u0027s own reliance on mmap_sem.\n\nBut KSM then needs to be careful, whenever it downs mmap_sem, to\ncheck that the mm is not already exiting: there\u0027s a danger of using\nfind_vma on a layout that\u0027s being torn apart, or writing into page\ntables which have been freed for reuse; and even do_anonymous_page\nand __do_fault need to check they\u0027re not being called by break_ksm\nto reinstate a pte after zap_pte_range has zapped that page table.\n\nThough it might be clearer to add an exiting flag, set while holding\nmmap_sem in __ksm_exit, that wouldn\u0027t cover the issue of reinstating\na zapped pte. All we need is to check whether mm_users is 0 - but\nmust remember that ksmd may detect that before __ksm_exit is reached.\nSo, ksm_test_exit(mm) added to comment such checks on mm-\u003emm_users.\n\n__ksm_exit now has to leave clearing up the rmap_items to ksmd,\nthat needs ksm_thread_mutex; but shift the exiting mm just after the\nksm_scan cursor so that it will soon be dealt with. __ksm_enter raise\nmm_count to hold the mm_struct, ksmd\u0027s exit processing (exactly like\nits processing when it finds all VM_MERGEABLEs unmapped) mmdrop it,\nsimilar procedure for KSM_RUN_UNMERGE (which has stopped ksmd).\n\nBut also give __ksm_exit a fast path: when there\u0027s no complication\n(no rmap_items attached to mm and it\u0027s not at the ksm_scan cursor),\nit can safely do all the exiting work itself. This is not just an\noptimization: when ksmd is not running, the raised mm_count would\notherwise leak mm_structs.\n\nSigned-off-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nAcked-by: Izik Eidus \u003cieidus@redhat.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": "9a840895147b12de5cdd633c600b38686840ee53", "tree": "a266a69a39decb4ec0364ac331f0ab19b6f09f06", "parents": [ "21333b2b66b805a360641568588e5a0bb06d9d1f" ], "author": { "name": "Hugh Dickins", "email": "hugh.dickins@tiscali.co.uk", "time": "Mon Sep 21 17:02:01 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:31 2009 -0700" }, "message": "ksm: identify PageKsm pages\n\nKSM will need to identify its kernel merged pages unambiguously, and\n/proc/kpageflags will probably like to do so too.\n\nSince KSM will only be substituting anonymous pages, statistics are best\npreserved by making a PageKsm page a special PageAnon page: one with no\nanon_vma.\n\nBut KSM then needs its own page_add_ksm_rmap() - keep it in ksm.h near\nPageKsm; and do_wp_page() must COW them, unlike singly mapped PageAnons.\n\nSigned-off-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nSigned-off-by: Chris Wright \u003cchrisw@redhat.com\u003e\nSigned-off-by: Izik Eidus \u003cieidus@redhat.com\u003e\nCc: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nCc: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Avi Kivity \u003cavi@redhat.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "21333b2b66b805a360641568588e5a0bb06d9d1f", "tree": "c0ce4d31e31ae2d2b1ef975b00c0611a3099c7a3", "parents": [ "f8af4da3b4c14e7267c4ffb952079af3912c51c5" ], "author": { "name": "Hugh Dickins", "email": "hugh.dickins@tiscali.co.uk", "time": "Mon Sep 21 17:01:59 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:31 2009 -0700" }, "message": "ksm: no debug in page_dup_rmap()\n\npage_dup_rmap(), used on each mapped page when forking, was originally\njust an inline atomic_inc of mapcount. 2.6.22 added CONFIG_DEBUG_VM\nout-of-line checks to it, which would need to be ever-so-slightly\ncomplicated to allow for the PageKsm() we\u0027re about to define.\n\nBut I think these checks never caught anything. And if it\u0027s coding errors\nwe\u0027re worried about, such checks should be in page_remove_rmap() too, not\njust when forking; whereas if it\u0027s pagetable corruption we\u0027re worried\nabout, then they shouldn\u0027t be limited to CONFIG_DEBUG_VM.\n\nOh, just revert page_dup_rmap() to an inline atomic_inc of mapcount.\n\nSigned-off-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nSigned-off-by: Chris Wright \u003cchrisw@redhat.com\u003e\nSigned-off-by: Izik Eidus \u003cieidus@redhat.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Avi Kivity \u003cavi@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": "f8af4da3b4c14e7267c4ffb952079af3912c51c5", "tree": "17b0cfbd2d3d9abf9008f69e7fee5369cec7afa5", "parents": [ "d19f352484467a5e518639ddff0554669c10ffab" ], "author": { "name": "Hugh Dickins", "email": "hugh.dickins@tiscali.co.uk", "time": "Mon Sep 21 17:01:57 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:31 2009 -0700" }, "message": "ksm: the mm interface to ksm\n\nThis patch presents the mm interface to a dummy version of ksm.c, for\nbetter scrutiny of that interface: the real ksm.c follows later.\n\nWhen CONFIG_KSM is not set, madvise(2) reject MADV_MERGEABLE and\nMADV_UNMERGEABLE with EINVAL, since that seems more helpful than\npretending that they can be serviced. But when CONFIG_KSM\u003dy, accept them\neven if KSM is not currently running, and even on areas which KSM will not\ntouch (e.g. hugetlb or shared file or special driver mappings).\n\nLike other madvices, report ENOMEM despite success if any area in the\nrange is unmapped, and use EAGAIN to report out of memory.\n\nDefine vma flag VM_MERGEABLE to identify an area on which KSM may try\nmerging pages: leave it to ksm_madvise() to decide whether to set it.\nDefine mm flag MMF_VM_MERGEABLE to identify an mm which might contain\nVM_MERGEABLE areas, to minimize callouts when forking or exiting.\n\nBased upon earlier patches by Chris Wright and Izik Eidus.\n\nSigned-off-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nSigned-off-by: Chris Wright \u003cchrisw@redhat.com\u003e\nSigned-off-by: Izik Eidus \u003cieidus@redhat.com\u003e\nCc: Michael Kerrisk \u003cmtk.manpages@gmail.com\u003e\nCc: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Avi Kivity \u003cavi@redhat.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d19f352484467a5e518639ddff0554669c10ffab", "tree": "87c31fff63fd3dccb2e47ddfee878a11228b7777", "parents": [ "3866ea90d3635ddddcd77ce51087222ac7de85f2" ], "author": { "name": "Hugh Dickins", "email": "hugh.dickins@tiscali.co.uk", "time": "Mon Sep 21 17:01:53 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:31 2009 -0700" }, "message": "ksm: define MADV_MERGEABLE and MADV_UNMERGEABLE\n\nThe out-of-tree KSM used ioctls on fds cloned from /dev/ksm to register a\nmemory area for merging: we prefer now to use an madvise(2) interface.\n\nThis patch just defines MADV_MERGEABLE (to tell KSM it may merge pages in\nthis area found identical to pages in other mergeable areas) and\nMADV_UNMERGEABLE (to undo that).\n\nMost architectures use asm-generic, but alpha, mips, parisc, xtensa need\ntheir own definitions: included here for mmotm convenience, but we\u0027ll\nprobably want to split this and feed pieces to arch maintainers.\n\nBased upon earlier patches by Chris Wright and Izik Eidus.\n\nSigned-off-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nSigned-off-by: Chris Wright \u003cchrisw@redhat.com\u003e\nSigned-off-by: Izik Eidus \u003cieidus@redhat.com\u003e\nCc: Michael Kerrisk \u003cmtk.manpages@gmail.com\u003e\nCc: Richard Henderson \u003crth@twiddle.net\u003e\nCc: Ivan Kokshaysky \u003cink@jurassic.park.msu.ru\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Kyle McMartin \u003ckyle@mcmartin.ca\u003e\nCc: Helge Deller \u003cdeller@gmx.de\u003e\nCc: Chris Zankel \u003cchris@zankel.net\u003e\nCc: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Avi Kivity \u003cavi@redhat.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "828502d30073036a486d96b1fe051e0f08b6df83", "tree": "61b728cbeb88c1a2c522307dff6264e8d0b1d8f1", "parents": [ "451ea25da71590361c71bf3044c55b870a887d53" ], "author": { "name": "Izik Eidus", "email": "ieidus@redhat.com", "time": "Mon Sep 21 17:01:51 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:31 2009 -0700" }, "message": "ksm: add mmu_notifier set_pte_at_notify()\n\nKSM is a linux driver that allows dynamicly sharing identical memory pages\nbetween one or more processes.\n\nUnlike tradtional page sharing that is made at the allocation of the\nmemory, ksm do it dynamicly after the memory was created. Memory is\nperiodically scanned; identical pages are identified and merged.\n\nThe sharing is made in a transparent way to the processes that use it.\n\nKsm is highly important for hypervisors (kvm), where in production\nenviorments there might be many copys of the same data data among the host\nmemory. This kind of data can be: similar kernels, librarys, cache, and\nso on.\n\nEven that ksm was wrote for kvm, any userspace application that want to\nuse it to share its data can try it.\n\nKsm may be useful for any application that might have similar (page\naligment) data strctures among the memory, ksm will find this data merge\nit to one copy, and even if it will be changed and thereforew copy on\nwrited, ksm will merge it again as soon as it will be identical again.\n\nAnother reason to consider using ksm is the fact that it might simplify\nalot the userspace code of application that want to use shared private\ndata, instead that the application will mange shared area, ksm will do\nthis for the application, and even write to this data will be allowed\nwithout any synchinization acts from the application.\n\nKsm was designed to be a loadable module that doesn\u0027t change the VM code\nof linux.\n\nThis patch:\n\nThe set_pte_at_notify() macro allows setting a pte in the shadow page\ntable directly, instead of flushing the shadow page table entry and then\ngetting vmexit to set it. It uses a new change_pte() callback to do so.\n\nset_pte_at_notify() is an optimization for kvm, and other users of\nmmu_notifiers, for COW pages. It is useful for kvm when ksm is used,\nbecause it allows kvm not to have to receive vmexit and only then map the\nksm page into the shadow page table, but instead map it directly at the\nsame time as Linux maps the page into the host page table.\n\nUsers of mmu_notifiers who don\u0027t implement new mmu_notifier_change_pte()\ncallback will just receive the mmu_notifier_invalidate_page() callback.\n\nSigned-off-by: Izik Eidus \u003cieidus@redhat.com\u003e\nSigned-off-by: Chris Wright \u003cchrisw@redhat.com\u003e\nSigned-off-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Avi Kivity \u003cavi@redhat.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "451ea25da71590361c71bf3044c55b870a887d53", "tree": "e2e9de6e7c1fb4f79c0413a3c4d401ec9263b722", "parents": [ "bf88c8c83e4425d17e29daa5354ffb1f8ba7b225" ], "author": { "name": "Johannes Weiner", "email": "hannes@cmpxchg.org", "time": "Mon Sep 21 17:01:48 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:30 2009 -0700" }, "message": "mm: perform non-atomic test-clear of PG_mlocked on free\n\nBy the time PG_mlocked is cleared in the page freeing path, nobody else is\nlooking at our page-\u003eflags anymore.\n\nIt is thus safe to make the test-and-clear non-atomic and thereby removing\nan unnecessary and expensive operation from a hotpath.\n\nSigned-off-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nReviewed-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nReviewed-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "adea02a1bea71a508da32c04d715485a1fe62029", "tree": "c78742bbab36bf3b8d20f84b4dc6dc6585bb7cb4", "parents": [ "55c37a840d9ec0ebed5c944355156d490b1ad5d1" ], "author": { "name": "Wu Fengguang", "email": "fengguang.wu@intel.com", "time": "Mon Sep 21 17:01:42 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:30 2009 -0700" }, "message": "mm: count only reclaimable lru pages\n\nglobal_lru_pages() / zone_lru_pages() can be used in two ways:\n- to estimate max reclaimable pages in determine_dirtyable_memory()\n- to calculate the slab scan ratio\n\nWhen swap is full or not present, the anon lru lists are not reclaimable\nand also won\u0027t be scanned. So the anon pages shall not be counted in both\nusage scenarios. Also rename to _reclaimable_pages: now they are counting\nthe possibly reclaimable lru pages.\n\nIt can greatly (and correctly) increase the slab scan rate under high\nmemory pressure (when most file pages have been reclaimed and swap is\nfull/absent), thus reduce false OOM kills.\n\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nReviewed-by: Rik van Riel \u003criel@redhat.com\u003e\nReviewed-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nReviewed-by: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nAcked-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nReviewed-by: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nReviewed-by: Jesse Barnes \u003cjbarnes@virtuousgeek.org\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: \"Li, Ming Chun\" \u003cmacli@brc.ubc.ca\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5a2ae913f5229d6e1d4a666f0477350789d5128e", "tree": "bb56d86baa5d491cfd780bb38c40ab2d22395b2d", "parents": [ "35cd78156c499ef83f60605e4643d5a98fef14fd" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Mon Sep 21 17:01:39 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:30 2009 -0700" }, "message": "mm: remove __{add,sub}_zone_page_state()\n\n__add_zone_page_state() and __sub_zone_page_state() are unused.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\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": "a731286de62294b63d8ceb3c5914ac52cc17e690", "tree": "c321e14500ec264e37fd103ffa71c7b133088010", "parents": [ "b35ea17b7bbf5dea35faa0de11030acc620c3197" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Mon Sep 21 17:01:37 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:29 2009 -0700" }, "message": "mm: vmstat: add isolate pages\n\nIf the system is running a heavy load of processes then concurrent reclaim\ncan isolate a large number of pages from the LRU. /proc/vmstat and the\noutput generated for an OOM do not show how many pages were isolated.\n\nThis has been observed during process fork bomb testing (mstctl11 in LTP).\n\nThis patch shows the information about isolated pages.\n\nReproduced via:\n\n-----------------------\n% ./hackbench 140 process 1000\n \u003d\u003e OOM occur\n\nactive_anon:146 inactive_anon:0 isolated_anon:49245\n active_file:79 inactive_file:18 isolated_file:113\n unevictable:0 dirty:0 writeback:0 unstable:0 buffer:39\n free:370 slab_reclaimable:309 slab_unreclaimable:5492\n mapped:53 shmem:15 pagetables:28140 bounce:0\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nAcked-by: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nReviewed-by: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4b02108ac1b3354a22b0d83c684797692efdc395", "tree": "9f65d6e8e35ddce940e7b9da6305cf5a19e5904e", "parents": [ "c6a7f5728a1db45d30df55a01adc130b4ab0327c" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Mon Sep 21 17:01:33 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:27 2009 -0700" }, "message": "mm: oom analysis: add shmem vmstat\n\nRecently we encountered OOM problems due to memory use of the GEM cache.\nGenerally a large amuont of Shmem/Tmpfs pages tend to create a memory\nshortage problem.\n\nWe often use the following calculation to determine the amount of shmem\npages:\n\nshmem \u003d NR_ACTIVE_ANON + NR_INACTIVE_ANON - NR_ANON_PAGES\n\nhowever the expression does not consider isolated and mlocked pages.\n\nThis patch adds explicit accounting for pages used by shmem and tmpfs.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nReviewed-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nAcked-by: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c6a7f5728a1db45d30df55a01adc130b4ab0327c", "tree": "36649bc6ebb959841a5097c699968722cfd99c4d", "parents": [ "71de1ccbe1fb40203edd3beb473f8580d917d2ca" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Mon Sep 21 17:01:32 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:27 2009 -0700" }, "message": "mm: oom analysis: Show kernel stack usage in /proc/meminfo and OOM log output\n\nThe amount of memory allocated to kernel stacks can become significant and\ncause OOM conditions. However, we do not display the amount of memory\nconsumed by stacks.\n\nAdd code to display the amount of memory used for stacks in /proc/meminfo.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nReviewed-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nReviewed-by: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nReviewed-by: Rik van Riel \u003criel@redhat.com\u003e\nCc: 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": "e8c5c8249878fb6564125680a1d15e06adbd5639", "tree": "66a69c11ea0f27e45c747e6f7236da80d9788cc1", "parents": [ "55a4462af5722d2814858bc51ee8d58ca29544ab" ], "author": { "name": "Lee Schermerhorn", "email": "lee.schermerhorn@hp.com", "time": "Mon Sep 21 17:01:22 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:26 2009 -0700" }, "message": "hugetlb: balance freeing of huge pages across nodes\n\nFree huges pages from nodes in round robin fashion in an attempt to keep\n[persistent a.k.a static] hugepages balanced across nodes\n\nNew function free_pool_huge_page() is modeled on and performs roughly the\ninverse of alloc_fresh_huge_page(). Replaces dequeue_huge_page() which\nnow has no callers, so this patch removes it.\n\nHelper function hstate_next_node_to_free() uses new hstate member\nnext_to_free_nid to distribute \"frees\" across all nodes with huge pages.\n\nAcked-by: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nAcked-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Nishanth Aravamudan \u003cnacc@us.ibm.com\u003e\nCc: Adam Litke \u003cagl@us.ibm.com\u003e\nCc: Andy Whitcroft \u003capw@canonical.com\u003e\nCc: Eric Whitney \u003ceric.whitney@hp.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "112067f0905b2de862c607ee62411cf47d2fe5c4", "tree": "55575b100292b764f945e4d9395989e8a734f883", "parents": [ "478b81fd84a299adb401dbbae296f3767e552999" ], "author": { "name": "Shaohua Li", "email": "shaohua.li@intel.com", "time": "Mon Sep 21 17:01:16 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:25 2009 -0700" }, "message": "memory hotplug: update zone pcp at memory online\n\nIn my test, 128M memory is hot added, but zone\u0027s pcp batch is 0, which is\nan obvious error. When pages are onlined, zone pcp should be updated\naccordingly.\n\n[akpm@linux-foundation.org: fix warnings]\nSigned-off-by: Shaohua Li \u003cshaohua.li@intel.com\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Yakui Zhao \u003cyakui.zhao@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a5abeeacc44bbef2935a7a8e939264c28962def2", "tree": "f4506e548c4a7991fcceef8edfd65e3a6911507f", "parents": [ "83d5cde47dedf01b6a4a4331882cbc0a7eea3c2e" ], "author": { "name": "Johannes Weiner", "email": "hannes@cmpxchg.org", "time": "Mon Sep 21 17:01:13 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:25 2009 -0700" }, "message": "mm: make swap token dummies static inlines\n\nMake use of the compiler\u0027s typechecking on !CONFIG_SWAP as well.\n\n[akpm@linux-foundation.org: build fix]\nSigned-off-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nReviewed-by: Rik van Riel \u003criel@redhat.com\u003e\nCc: Randy Dunlap \u003crandy.dunlap@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": "83d5cde47dedf01b6a4a4331882cbc0a7eea3c2e", "tree": "f8ba5e263717d35cd444fcc65898d2ed352af1ae", "parents": [ "7b021967c5e1463936042c8da72b550d3cabe9ac" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Mon Sep 21 17:01:13 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:25 2009 -0700" }, "message": "const: make block_device_operations const\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@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": "7b021967c5e1463936042c8da72b550d3cabe9ac", "tree": "efb5c26216851a93b3db3fba55858af04c8a15c5", "parents": [ "6aed62853c72e29f2c97bbac7712cb398e8c9437" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Mon Sep 21 17:01:12 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:25 2009 -0700" }, "message": "const: make lock_manager_operations const\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@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": "6aed62853c72e29f2c97bbac7712cb398e8c9437", "tree": "4362cfa98b6b588f84fb2241115b7ef5b5dfce55", "parents": [ "6e1d5dcc2bbbe71dbf010c747e15739bef6b7218" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Mon Sep 21 17:01:11 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:25 2009 -0700" }, "message": "const: make file_lock_operations const\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@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": "0d54b217a247f39605361f867fefbb9e099a5432", "tree": "5af6a2cc4cbc6c327e735ac5edb642d47a1f0013", "parents": [ "61e225dc341107be304fd1088146c2a5e88ff9e0" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Mon Sep 21 17:01:09 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:24 2009 -0700" }, "message": "const: make struct super_block::s_qcop const\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@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": "61e225dc341107be304fd1088146c2a5e88ff9e0", "tree": "e6d3e1dc5506e232497f17721175a081a5306b5b", "parents": [ "00d3803b656a5f0935518d746f6bb27d5181d29d" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Mon Sep 21 17:01:08 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:24 2009 -0700" }, "message": "const: make struct super_block::dq_op const\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@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": "181f7c5dd3832763bdf2756b6d2d8a49bdf12791", "tree": "631dc0c343eac8f16e3f12d5b0a4e968858d40ad", "parents": [ "e3c6c4a8af9e3c4588235444774e66b6483b10ad" ], "author": { "name": "Johannes Berg", "email": "johannes@sipsolutions.net", "time": "Mon Jul 06 11:53:03 2009 +0200" }, "committer": { "name": "Vegard Nossum", "email": "vegard.nossum@gmail.com", "time": "Mon Sep 21 23:34:24 2009 +0200" }, "message": "kmemcheck: add missing braces to do-while in kmemcheck_annotate_bitfield\n\nWhether or not the sparse warning\n\n\twarning: do-while statement is not a compound statement\n\nis justified or not in this case, it is annoying and trivial to fix.\n\n[vegard.nossum@gmail.com: title and cleanup]\nSigned-off-by: Johannes Berg \u003cjohannes@sipsolutions.net\u003e\nSigned-off-by: Vegard Nossum \u003cvegard.nossum@gmail.com\u003e\n" }, { "commit": "43c1266ce4dc06bfd236cec31e11e9ecd69c0bef", "tree": "40a86739ca4c36200f447f655b01c57cfe646e26", "parents": [ "b8c7f1dc5ca4e0d10709182233cdab932cef593d", "57c0c15b5244320065374ad2c54f4fbec77a6428" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:15:07 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:15:07 2009 -0700" }, "message": "Merge branch \u0027perfcounters-rename-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perfcounters-rename-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf: Tidy up after the big rename\n perf: Do the big rename: Performance Counters -\u003e Performance Events\n perf_counter: Rename \u0027event\u0027 to event_id/hw_event\n perf_counter: Rename list_entry -\u003e group_entry, counter_list -\u003e group_list\n\nManually resolved some fairly trivial conflicts with the tracing tree in\ninclude/trace/ftrace.h and kernel/trace/trace_syscalls.c.\n" }, { "commit": "b8c7f1dc5ca4e0d10709182233cdab932cef593d", "tree": "28c5f79d61ce7167511f18eaed5c9fca87c68ab4", "parents": [ "f4eccb6d979e0cc5a719a50af5f9a56e79092a2d", "a71fca58b7f4abca551ae2256ac08dd9123a03f9" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:06:52 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:06:52 2009 -0700" }, "message": "Merge branch \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n rcu: Fix whitespace inconsistencies\n rcu: Fix thinko, actually initialize full tree\n rcu: Apply results of code inspection of kernel/rcutree_plugin.h\n rcu: Add WARN_ON_ONCE() consistency checks covering state transitions\n rcu: Fix synchronize_rcu() for TREE_PREEMPT_RCU\n rcu: Simplify rcu_read_unlock_special() quiescent-state accounting\n rcu: Add debug checks to TREE_PREEMPT_RCU for premature grace periods\n rcu: Kconfig help needs to say that TREE_PREEMPT_RCU scales down\n rcutorture: Occasionally delay readers enough to make RCU force_quiescent_state\n rcu: Initialize multi-level RCU grace periods holding locks\n rcu: Need to update rnp-\u003egpnum if preemptable RCU is to be reliable\n" }, { "commit": "f4eccb6d979e0cc5a719a50af5f9a56e79092a2d", "tree": "00b3ca17251430ce1336d813cf76e95ccdd55099", "parents": [ "8e4bc3dd2ca07d77882eba73cea240aba95a1854", "cd74c86bdf705f824d494a2bbda393d1d562b40a" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:06:31 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:06:31 2009 -0700" }, "message": "Merge branch \u0027perfcounters-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perfcounters-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf_counter, powerpc, sparc: Fix compilation after perf_counter_overflow() change\n perf_counter: x86: Fix PMU resource leak\n perf util: SVG performance improvements\n perf util: Make the timechart SVG width dynamic\n perf timechart: Show the duration of scheduler delays in the SVG\n perf timechart: Show the name of the waker/wakee in timechart\n" }, { "commit": "8e4bc3dd2ca07d77882eba73cea240aba95a1854", "tree": "da105cd2c4f51c78c401c00d8b399572914694ed", "parents": [ "bd4c3a3441144cd46d1f544046523724c5bc6e94", "0d721ceadbeaa24d7f9dd41b3e5e29912327a7e1" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:06:17 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:06:17 2009 -0700" }, "message": "Merge branch \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched: Simplify sys_sched_rr_get_interval() system call\n sched: Fix potential NULL derference of doms_cur\n sched: Fix raciness in runqueue_is_locked()\n sched: Re-add lost cpu_allowed check to sched_fair.c::select_task_rq_fair()\n sched: Remove unneeded indentation in sched_fair.c::place_entity()\n" }, { "commit": "bd4c3a3441144cd46d1f544046523724c5bc6e94", "tree": "8b5c67249a7a163caf3f88cbcb9df5236fcc3b93", "parents": [ "b3727c24da69971503a4ca98b3b877753c6a4393", "583a22e7c154dc0a3938db522696b4bc7f098f59" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:05:47 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:05:47 2009 -0700" }, "message": "Merge branch \u0027tracing-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027tracing-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n kernel/profile.c: Switch /proc/irq/prof_cpu_mask to seq_file\n tracing: Export trace_profile_buf symbols\n tracing/events: use list_for_entry_continue\n tracing: remove max_tracer_type_len\n function-graph: use ftrace_graph_funcs directly\n tracing: Remove markers\n tracing: Allocate the ftrace event profile buffer dynamically\n tracing: Factorize the events profile accounting\n" }, { "commit": "c720f5655df159a630fa0290a0bd67c93e92b0bf", "tree": "940d139d0ec1ff5201efddef6cc663166a8a2df3", "parents": [ "33e6c1a0de818d3698cdab27c42915661011319d", "84d6ae431f315e8973aac3c3fe1d550fc9240ef3" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:03:10 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:03:10 2009 -0700" }, "message": "Merge branch \u0027for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6\n\n* \u0027for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (222 commits)\n V4L/DVB (13033): pt1: Don\u0027t use a deprecated DMA_BIT_MASK macro\n V4L/DVB (13029): radio-si4713: remove #include \u003clinux/version.h\u003e\n V4L/DVB (13027): go7007: convert printks to v4l2_info\n V4L/DVB (13026): s2250-board: Implement brightness and contrast controls\n V4L/DVB (13025): s2250-board: Fix memory leaks\n V4L/DVB (13024): go7007: Implement vidioc_g_std and vidioc_querystd\n V4L/DVB (13023): go7007: Merge struct gofh and go declarations\n V4L/DVB (13022): go7007: Fix mpeg controls\n V4L/DVB (13021): go7007: Fix whitespace and line lengths\n V4L/DVB (13020): go7007: Updates to Kconfig and Makefile\n V4L/DVB (13019): video: initial support for ADV7180\n V4L/DVB (13018): kzalloc failure ignored in au8522_probe()\n V4L/DVB (13017): gspca: kmalloc failure ignored in sd_start()\n V4L/DVB (13016): kmalloc failure ignored in lgdt3304_attach() and s921_attach()\n V4L/DVB (13015): kmalloc failure ignored in m920x_firmware_download()\n V4L/DVB (13014): Add support for Compro VideoMate E800 (DVB-T part only)\n V4L/DVB (13013): FM TX: si4713: Kconfig: Fixed two typos.\n V4L/DVB (13012): uvc: introduce missing kfree\n V4L/DVB (13011): Change tuner type of BeholdTV cards\n V4L/DVB (13009): gspca - stv06xx-hdcs: Reduce exposure range\n ...\n" }, { "commit": "44040f107e64d689ccd3211ac62c6bc44f3f0775", "tree": "f85059028aa570e758c7fb272fd8cf823ab4f119", "parents": [ "388dba30471c236a290c4082bce5f2b5cd1a7a06", "28d520433b6375740990ab99d69b0d0067fd656b" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 08:10:09 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 08:10:09 2009 -0700" }, "message": "Merge branch \u0027drm-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6\n\n* \u0027drm-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (133 commits)\n drm/vgaarb: add VGA arbitration support to the drm and kms.\n drm/radeon: some r420s have a CP race with the DMA engine.\n drm/radeon/r600/kms: rv670 is not DCE3\n drm/radeon/kms: r420 idle after programming GA_ENHANCE\n drm/radeon/kms: more fixes to rv770 suspend/resume path.\n drm/radeon/kms: more alignment for rv770.c with r600.c\n drm/radeon/kms: rv770 blit init called too late.\n drm/radeon/kms: move around new init path code to avoid posting at init\n drm/radeon/r600: fix some issues with suspend/resume.\n drm/radeon/kms: disable VGA rendering engine before taking over VRAM\n drm/radeon/kms: Move radeon_get_clock_info() call out of radeon_clocks_init().\n drm/radeon/kms: add initial connector properties\n drm/radeon/kms: Use surfaces for scanout / cursor byte swapping on big endian.\n drm/radeon/kms: don\u0027t fail if we fail to init GPU acceleration\n drm/r600/kms: fixup number of loops per blit calculation.\n drm/radeon/kms: reprogram format in set base.\n drm/radeon: avivo chips have no separate int bit for display\n drm/radeon/r600: don\u0027t do interrupts\n drm: fix _DRM_GEM addmap error message\n drm: update crtc x/y when only fb changes\n ...\n\nFixed up trivial conflicts in firmware/Makefile due to network driver\n(cxgb3) and drm (mga/r128/radeon) firmware being listed next to each\nother.\n" }, { "commit": "a419aef8b858a2bdb98df60336063d28df4b272f", "tree": "1736f6650ec0bfc01074c489fc47396114099c5e", "parents": [ "2944fcbe03d65a704f07e43efe14adb0d226fd09" ], "author": { "name": "Joe Perches", "email": "joe@perches.com", "time": "Tue Aug 18 11:18:35 2009 -0700" }, "committer": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Mon Sep 21 15:14:58 2009 +0200" }, "message": "trivial: remove unnecessary semicolons\n\nSigned-off-by: Joe Perches \u003cjoe@perches.com\u003e\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\n" }, { "commit": "3dbda77e6f3375f87090cfce97b2551d3723521b", "tree": "2029181fa4663ccab8c3afe00c61443ccbb59311", "parents": [ "31d0f84591b3bf49801a7e3f905a6089d857aa87" ], "author": { "name": "Uwe Kleine-Koenig", "email": "u.kleine-koenig@pengutronix.de", "time": "Thu Jul 23 08:31:31 2009 +0200" }, "committer": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Mon Sep 21 15:14:56 2009 +0200" }, "message": "trivial: fix typos \"man[ae]g?ment\" -\u003e \"management\"\n\nSigned-off-by: Uwe Kleine-Koenig \u003cu.kleine-koenig@pengutronix.de\u003e\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\n" }, { "commit": "fd589a8f0a13f53a2dd580b1fe170633cf6b095f", "tree": "942c50188ca58041b0453189e710eafcfebaea57", "parents": [ "4f37940d64a155c025968118849b596f6aaa8128" ], "author": { "name": "Anand Gadiyar", "email": "gadiyar@ti.com", "time": "Thu Jul 16 17:13:03 2009 +0200" }, "committer": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Mon Sep 21 15:14:55 2009 +0200" }, "message": "trivial: fix typo \"to to\" in multiple files\n\nSigned-off-by: Anand Gadiyar \u003cgadiyar@ti.com\u003e\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\n" }, { "commit": "411c94038594b2a3fd123d09bdec3fe2500e383d", "tree": "44b991786c7f4806b1b88f40439945b3835b6292", "parents": [ "786d8ca341a30296264bc6cebac52d37b0851647" ], "author": { "name": "Anand Gadiyar", "email": "gadiyar@ti.com", "time": "Tue Jul 07 15:24:23 2009 +0530" }, "committer": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Mon Sep 21 15:14:54 2009 +0200" }, "message": "trivial: fix typo \"for for\" in multiple files\n\ntrivial: fix typo \"for for\" in multiple files\n\nSigned-off-by: Anand Gadiyar \u003cgadiyar@ti.com\u003e\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\n" }, { "commit": "b9049df5a0e7f35456c06b949b08b898b9c2e7bc", "tree": "cda86fa8a17effbd44034faf183dfe467f9254d9", "parents": [ "b519c15d4aacb3706bfff86ba316f9ed81b5032a" ], "author": { "name": "Dmitri Vorobiev", "email": "dmitri.vorobiev@movial.com", "time": "Tue Jun 23 12:09:29 2009 +0200" }, "committer": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Mon Sep 21 15:14:53 2009 +0200" }, "message": "Change \"useing\" -\u003e \"using\".\n\nSigned-off-by: Dmitri Vorobiev \u003cdmitri.vorobiev@movial.com\u003e\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\n" }, { "commit": "47a0dfaad9eb82b16193477cf99c2462af03c329", "tree": "df906f3a7f3d93cb0dc626506c309a081a296d8f", "parents": [ "bcf56442429a15bdd6e1d81a9d4c89f93a44fdf7" ], "author": { "name": "Ori Avtalion", "email": "ori@avtalion.name", "time": "Tue Jun 16 12:17:53 2009 +0300" }, "committer": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Mon Sep 21 15:14:51 2009 +0200" }, "message": "trivial: fix typo in namei.h comment\n\nSigned-off-by: Ori Avtalion \u003cori@avtalion.name\u003e\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\n" }, { "commit": "bcf56442429a15bdd6e1d81a9d4c89f93a44fdf7", "tree": "a59f794bfa1e617091b055f33adabe362d043cbc", "parents": [ "ebc79c4f8da0f92efa968e0328f32334a2ce80cf" ], "author": { "name": "GeunSik Lim", "email": "leemgs1@gmail.com", "time": "Tue Jun 16 10:26:25 2009 +0200" }, "committer": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Mon Sep 21 15:14:51 2009 +0200" }, "message": "trivial: change address of the libcap source.\n\nThis is patch to change ftp site of the libcap source.\n\"ftp://linux.kernel.org\" address does not exist.\n\nSigned-off-by: GeunSik Lim \u003cgeunsik.lim@samsung.com\u003e\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\n" }, { "commit": "57c0c15b5244320065374ad2c54f4fbec77a6428", "tree": "35369d817f5925aca09b083bba47c437b91386d9", "parents": [ "cdd6c482c9ff9c55475ee7392ec8f672eddb7be6" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 21 12:20:38 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 21 14:34:11 2009 +0200" }, "message": "perf: Tidy up after the big rename\n\n - provide compatibility Kconfig entry for existing PERF_COUNTERS .config\u0027s\n\n - provide courtesy copy of old perf_counter.h, for user-space projects\n\n - small indentation fixups\n\n - fix up MAINTAINERS\n\n - fix small x86 printout fallout\n\n - fix up small PowerPC comment fallout (use \u0027counter\u0027 as in register)\n\nReviewed-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cdd6c482c9ff9c55475ee7392ec8f672eddb7be6", "tree": "81f98a3ab46c589792057fe2392c1e10f8ad7893", "parents": [ "dfc65094d0313cc48969fa60bcf33d693aeb05a7" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 21 12:02:48 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 21 14:28:04 2009 +0200" }, "message": "perf: Do the big rename: Performance Counters -\u003e Performance Events\n\nBye-bye Performance Counters, welcome Performance Events!\n\nIn the past few months the perfcounters subsystem has grown out its\ninitial role of counting hardware events, and has become (and is\nbecoming) a much broader generic event enumeration, reporting, logging,\nmonitoring, analysis facility.\n\nNaming its core object \u0027perf_counter\u0027 and naming the subsystem\n\u0027perfcounters\u0027 has become more and more of a misnomer. With pending\ncode like hw-breakpoints support the \u0027counter\u0027 name is less and\nless appropriate.\n\nAll in one, we\u0027ve decided to rename the subsystem to \u0027performance\nevents\u0027 and to propagate this rename through all fields, variables\nand API names. (in an ABI compatible fashion)\n\nThe word \u0027event\u0027 is also a bit shorter than \u0027counter\u0027 - which makes\nit slightly more convenient to write/handle as well.\n\nThanks goes to Stephane Eranian who first observed this misnomer and\nsuggested a rename.\n\nUser-space tooling and ABI compatibility is not affected - this patch\nshould be function-invariant. (Also, defconfigs were not touched to\nkeep the size down.)\n\nThis patch has been generated via the following script:\n\n FILES\u003d$(find * -type f | grep -vE \u0027oprofile|[^K]config\u0027)\n\n sed -i \\\n -e \u0027s/PERF_EVENT_/PERF_RECORD_/g\u0027 \\\n -e \u0027s/PERF_COUNTER/PERF_EVENT/g\u0027 \\\n -e \u0027s/perf_counter/perf_event/g\u0027 \\\n -e \u0027s/nb_counters/nb_events/g\u0027 \\\n -e \u0027s/swcounter/swevent/g\u0027 \\\n -e \u0027s/tpcounter_event/tp_event/g\u0027 \\\n $FILES\n\n for N in $(find . -name perf_counter.[ch]); do\n M\u003d$(echo $N | sed \u0027s/perf_counter/perf_event/g\u0027)\n mv $N $M\n done\n\n FILES\u003d$(find . -name perf_event.*)\n\n sed -i \\\n -e \u0027s/COUNTER_MASK/REG_MASK/g\u0027 \\\n -e \u0027s/COUNTER/EVENT/g\u0027 \\\n -e \u0027s/\\\u003cevent\\\u003e/event_id/g\u0027 \\\n -e \u0027s/counter/event/g\u0027 \\\n -e \u0027s/Counter/Event/g\u0027 \\\n $FILES\n\n... to keep it as correct as possible. This script can also be\nused by anyone who has pending perfcounters patches - it converts\na Linux kernel tree over to the new naming. We tried to time this\nchange to the point in time where the amount of pending patches\nis the smallest: the end of the merge window.\n\nNamespace clashes were fixed up in a preparatory patch - and some\nstylistic fallout will be fixed up in a subsequent patch.\n\n( NOTE: \u0027counters\u0027 are still the proper terminology when we deal\n with hardware registers - and these sed scripts are a bit\n over-eager in renaming them. I\u0027ve undone some of that, but\n in case there\u0027s something left where \u0027counter\u0027 would be\n better than \u0027event\u0027 we can undo that on an individual basis\n instead of touching an otherwise nicely automated patch. )\n\nSuggested-by: Stephane Eranian \u003ceranian@google.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nReviewed-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: Kyle McMartin \u003ckyle@mcmartin.ca\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "65abc8653c282ded3dbdb9ec1227784140ba28cd", "tree": "299d9dc0e3548016cc01eb2b13db6ea51d519ebb", "parents": [ "ae82bfd61ca7e57cc2d914add9ab0873e260f2f5" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 21 10:18:27 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 21 12:54:51 2009 +0200" }, "message": "perf_counter: Rename list_entry -\u003e group_entry, counter_list -\u003e group_list\n\nThis is in preparation of the big rename, but also makes sense\nin a standalone way: \u0027list_entry\u0027 is a bad name as we already\nhave a list_entry() in list.h.\n\nAlso, the \u0027counter list\u0027 is too vague, it doesnt tell us the\npurpose of that list.\n\nClarify these names to show that it\u0027s all about the group\nhiearchy.\n\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ae82bfd61ca7e57cc2d914add9ab0873e260f2f5", "tree": "a7f862ad8b0ae4f2e8953e6aa613eb702b484ecf", "parents": [ "cd74c86bdf705f824d494a2bbda393d1d562b40a", "ebc79c4f8da0f92efa968e0328f32334a2ce80cf" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 21 12:51:27 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 21 12:51:42 2009 +0200" }, "message": "Merge branch \u0027linus\u0027 into perfcounters/rename\n\nMerge reason: pull in all the latest code before doing the rename.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0d721ceadbeaa24d7f9dd41b3e5e29912327a7e1", "tree": "54c0c8dc201122483bdd7e8975103b07f6afd34b", "parents": [ "cb5fd13f1178dee4302646b2890d884c380160e1" ], "author": { "name": "Peter Williams", "email": "pwil3058@bigpond.net.au", "time": "Mon Sep 21 01:31:53 2009 +0000" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 21 09:53:55 2009 +0200" }, "message": "sched: Simplify sys_sched_rr_get_interval() system call\n\nBy removing the need for it to know details of scheduling classes.\n\nThis allows PlugSched to define orthogonal scheduling classes.\n\nSigned-off-by: Peter Williams \u003cpwil3058@bigpond.net.au\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c06d1b89ee15a0eef82d7.1253496713@mudlark.pw.nest\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cd74c86bdf705f824d494a2bbda393d1d562b40a", "tree": "8af5261bcd84014f6f587eb326b7dd7c203d0966", "parents": [ "a1792cdacaf5180e04e07811e220c4a3b4a9c33e" ], "author": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Mon Sep 21 16:44:32 2009 +1000" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 21 09:28:40 2009 +0200" }, "message": "perf_counter, powerpc, sparc: Fix compilation after perf_counter_overflow() change\n\nCommit 5622f295 (\"x86, perf_counter, bts: Optimize BTS overflow\nhandling\") removed the regs field from struct perf_sample_data and\nadded a regs parameter to perf_counter_overflow(). This breaks the\nbuild on powerpc (and Sparc) as reported by Sachin Sant:\n\n arch/powerpc/kernel/perf_counter.c: In function \u0027record_and_restart\u0027:\n arch/powerpc/kernel/perf_counter.c:1165: error: unknown field \u0027regs\u0027 specified in initializer\n\nThis adjusts arch/powerpc/kernel/perf_counter.c to correspond with the\nnew struct perf_sample_data and perf_counter_overflow().\n\n[ v2: also fix Sparc, Markus Metzger \u003cmarkus.t.metzger@intel.com\u003e ]\n\nReported-by: Sachin Sant \u003csachinp@in.ibm.com\u003e\nSigned-off-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Markus Metzger \u003cmarkus.t.metzger@intel.com\u003e\nCc: David S. Miller \u003cdavem@davemloft.net\u003e\nCc: benh@kernel.crashing.org\nCc: linuxppc-dev@ozlabs.org\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c19127.8400.376239.586120@drongo.ozlabs.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" } ], "next": "28d520433b6375740990ab99d69b0d0067fd656b" }