)]}' { "log": [ { "commit": "b415c49a864dab8ee90713833d642dd461eccae9", "tree": "f5e763afdab9a43ff632993d7be49e73d8a6df6c", "parents": [ "6adc74b7d03c06a8e15d51fe33c3d924ada9271a" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Thu Jun 11 13:12:55 2009 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 11 11:26:38 2009 -0700" }, "message": "slow_work_thread() should do the exclusive wait\n\nslow_work_thread() sleeps on slow_work_thread_wq without WQ_FLAG_EXCLUSIVE,\nthis means that slow_work_enqueue()-\u003e__wake_up(nr_exclusive \u003d\u003e 1) wakes up all\nkslowd threads. This is not what we want, so we change slow_work_thread() to\nuse prepare_to_wait_exclusive() instead.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c9059598ea8981d02356eead3188bf7fa4d717b8", "tree": "03e73b20a30e988da7c6a3e0ad93b2dc5843274d", "parents": [ "0a33f80a8373eca7f4bea3961d1346c3815fa5ed", "b0fd271d5fba0b2d00888363f3869e3f9b26caa9" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 11 10:52:27 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 11 11:10:35 2009 -0700" }, "message": "Merge branch \u0027for-2.6.31\u0027 of git://git.kernel.dk/linux-2.6-block\n\n* \u0027for-2.6.31\u0027 of git://git.kernel.dk/linux-2.6-block: (153 commits)\n block: add request clone interface (v2)\n floppy: fix hibernation\n ramdisk: remove long-deprecated \"ramdisk\u003d\" boot-time parameter\n fs/bio.c: add missing __user annotation\n block: prevent possible io_context-\u003erefcount overflow\n Add serial number support for virtio_blk, V4a\n block: Add missing bounce_pfn stacking and fix comments\n Revert \"block: Fix bounce limit setting in DM\"\n cciss: decode unit attention in SCSI error handling code\n cciss: Remove no longer needed sendcmd reject processing code\n cciss: change SCSI error handling routines to work with interrupts enabled.\n cciss: separate error processing and command retrying code in sendcmd_withirq_core()\n cciss: factor out fix target status processing code from sendcmd functions\n cciss: simplify interface of sendcmd() and sendcmd_withirq()\n cciss: factor out core of sendcmd_withirq() for use by SCSI error handling code\n cciss: Use schedule_timeout_uninterruptible in SCSI error handling code\n block: needs to set the residual length of a bidi request\n Revert \"block: implement blkdev_readpages\"\n block: Fix bounce limit setting in DM\n Removed reference to non-existing file Documentation/PCI/PCI-DMA-mapping.txt\n ...\n\nManually fix conflicts with tracing updates in:\n\tblock/blk-sysfs.c\n\tdrivers/ide/ide-atapi.c\n\tdrivers/ide/ide-cd.c\n\tdrivers/ide/ide-floppy.c\n\tdrivers/ide/ide-tape.c\n\tinclude/trace/events/block.h\n\tkernel/trace/blktrace.c\n" }, { "commit": "d3d07d941fd80c173b6d690ded00ee5fb8302e06", "tree": "f1a82c956e393df9933c8544bb564ef1735384ee", "parents": [ "6cd8e300b49332eb9eeda45816c711c198d31505", "54ff328b46e58568c4b3350c2fa3223ef862e5a4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 11 10:08:33 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 11 10:08:33 2009 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (266 commits)\n sh: Tie sparseirq in to Kconfig.\n sh: Wire up sys_rt_tgsigqueueinfo.\n sh: Fix sys_pwritev() syscall table entry for sh32.\n sh: Fix sh4a llsc-based cmpxchg()\n sh: sh7724: Add JPU support\n sh: sh7724: INTC setting update\n sh: sh7722 clock framework rewrite\n sh: sh7366 clock framework rewrite\n sh: sh7343 clock framework rewrite\n sh: sh7724 clock framework rewrite V3\n sh: sh7723 clock framework rewrite V2\n sh: add enable()/disable()/set_rate() to div6 code\n sh: add AP325RXA mode pin configuration\n sh: add Migo-R mode pin configuration\n sh: sh7722 mode pin definitions\n sh: sh7724 mode pin comments\n sh: sh7723 mode pin V2\n sh: rework mode pin code\n sh: clock div6 helper code\n sh: clock div4 frequency table offset fix\n ...\n" }, { "commit": "3296ca27f50ecbd71db1d808c7a72d311027f919", "tree": "833eaa58b2013bda86d4bd95faf6efad7a2d5ca4", "parents": [ "e893123c7378192c094747dadec326b7c000c190", "73fbad283cfbbcf02939bdbda31fc4a30e729cca" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 11 10:01:41 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 11 10:01:41 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: (44 commits)\n nommu: Provide mmap_min_addr definition.\n TOMOYO: Add description of lists and structures.\n TOMOYO: Remove unused field.\n integrity: ima audit dentry_open failure\n TOMOYO: Remove unused parameter.\n security: use mmap_min_addr indepedently of security models\n TOMOYO: Simplify policy reader.\n TOMOYO: Remove redundant markers.\n SELinux: define audit permissions for audit tree netlink messages\n TOMOYO: Remove unused mutex.\n tomoyo: avoid get+put of task_struct\n smack: Remove redundant initialization.\n integrity: nfsd imbalance bug fix\n rootplug: Remove redundant initialization.\n smack: do not beyond ARRAY_SIZE of data\n integrity: move ima_counts_get\n integrity: path_check update\n IMA: Add __init notation to ima functions\n IMA: Minimal IMA policy and boot param for TCB IMA policy\n selinux: remove obsolete read buffer limit from sel_read_bool\n ...\n" }, { "commit": "cf9fe114e3b37e14fc8434d5abb192e35df551b1", "tree": "0f82879295dc792f9df1a3ce79e143a3c073510f", "parents": [ "c1d0d32a603ed06377f404adf2c538de33bb3634", "991ec02cdca33b03a132a0cacfe6f0aa0be9aa8d" ], "author": { "name": "Paul Mundt", "email": "lethal@linux-sh.org", "time": "Thu Jun 11 09:01:14 2009 +0300" }, "committer": { "name": "Paul Mundt", "email": "lethal@linux-sh.org", "time": "Thu Jun 11 09:01:14 2009 +0300" }, "message": "Merge branch \u0027master\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6\n" }, { "commit": "991ec02cdca33b03a132a0cacfe6f0aa0be9aa8d", "tree": "50b5f4e2b9f138da57f76eca44fdcc80a2fcd428", "parents": [ "862366118026a358882eefc70238dbcc3db37aac", "84047e360af0394ac5861d433f26bbcf30f77dd1" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 19:58:10 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 19:58:10 2009 -0700" }, "message": "Merge branch \u0027tracing-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027tracing-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n function-graph: always initialize task ret_stack\n function-graph: move initialization of new tasks up in fork\n function-graph: add memory barriers for accessing task\u0027s ret_stack\n function-graph: enable the stack after initialization of other variables\n function-graph: only allocate init tasks if it was not already done\n\nManually fix trivial conflict in kernel/trace/ftrace.c\n" }, { "commit": "862366118026a358882eefc70238dbcc3db37aac", "tree": "4eb62bc10327a5afac064a95a091ea05ecd2acc1", "parents": [ "57eee9ae7bbcfb692dc96c739a5184adb6349733", "511b01bdf64ad8a38414096eab283c7784aebfc4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 19:53:40 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 19:53:40 2009 -0700" }, "message": "Merge branch \u0027tracing-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027tracing-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (244 commits)\n Revert \"x86, bts: reenable ptrace branch trace support\"\n tracing: do not translate event helper macros in print format\n ftrace/documentation: fix typo in function grapher name\n tracing/events: convert block trace points to TRACE_EVENT(), fix !CONFIG_BLOCK\n tracing: add protection around module events unload\n tracing: add trace_seq_vprint interface\n tracing: fix the block trace points print size\n tracing/events: convert block trace points to TRACE_EVENT()\n ring-buffer: fix ret in rb_add_time_stamp\n ring-buffer: pass in lockdep class key for reader_lock\n tracing: add annotation to what type of stack trace is recorded\n tracing: fix multiple use of __print_flags and __print_symbolic\n tracing/events: fix output format of user stack\n tracing/events: fix output format of kernel stack\n tracing/trace_stack: fix the number of entries in the header\n ring-buffer: discard timestamps that are at the start of the buffer\n ring-buffer: try to discard unneeded timestamps\n ring-buffer: fix bug in ring_buffer_discard_commit\n ftrace: do not profile functions when disabled\n tracing: make trace pipe recognize latency format flag\n ...\n" }, { "commit": "8f40642ad315c553bab4ae800766ade07e574a77", "tree": "24d68827f8034bc9fea8e8e8c27cdf6a40417b68", "parents": [ "20f3f3ca499d2c211771ba552685398b65d83859", "12d161147f828192b5bcc33166f468a827832767" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 19:50:52 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 19:50:52 2009 -0700" }, "message": "Merge branch \u0027signal-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027signal-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n x86: hookup sys_rt_tgsigqueueinfo\n signals: implement sys_rt_tgsigqueueinfo\n signals: split do_tkill\n" }, { "commit": "20f3f3ca499d2c211771ba552685398b65d83859", "tree": "41b460196a0860e11d12e33e3172463973cb0078", "parents": [ "769f3e8c384795cc350e2aae27de2a12374d19d4", "41c51c98f588edcdf6141cff1895df738e03ddd4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 19:50:03 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 19:50:03 2009 -0700" }, "message": "Merge branch \u0027rcu-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027rcu-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n rcu: rcu_sched_grace_period(): kill the bogus flush_signals()\n rculist: use list_entry_rcu in places where it\u0027s appropriate\n rculist.h: introduce list_entry_rcu() and list_first_entry_rcu()\n rcu: Update RCU tracing documentation for __rcu_pending\n rcu: Add __rcu_pending tracing to hierarchical RCU\n RCU: make treercu be default\n" }, { "commit": "73fbad283cfbbcf02939bdbda31fc4a30e729cca", "tree": "7c89fe13e1b4a2c7f2d60f4ea6eaf69c14bccab7", "parents": [ "769f3e8c384795cc350e2aae27de2a12374d19d4", "35f2c2f6f6ae13ef23c4f68e6d3073753077ca43" ], "author": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Thu Jun 11 11:03:14 2009 +1000" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Thu Jun 11 11:03:14 2009 +1000" }, "message": "Merge branch \u0027next\u0027 into for-linus\n" }, { "commit": "e7241d771419b8a8671ebc46a043c324ccb0dcf7", "tree": "77f1bc9c635e2ac29396816ce9ef9cbdb6853884", "parents": [ "3f6280ddf25fa656d0e17960588e52bee48a7547", "04dce7d9d429ea5ea04e9432d1726c930f4d67da" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 16:19:40 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 16:19:40 2009 -0700" }, "message": "Merge branch \u0027locking-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027locking-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n spinlock: Add missing __raw_spin_lock_flags() stub for UP\n mutex: add atomic_dec_and_mutex_lock(), fix\n locking, rtmutex.c: Documentation cleanup\n mutex: add atomic_dec_and_mutex_lock()\n" }, { "commit": "75063600fd7b27fe447112c27997f100b9e2f99b", "tree": "9a495bc5ec6570b0eb7e0d1f77ef23d97b33656b", "parents": [ "be15f9d63b97da0065187696962331de6cd9de9e", "2070887fdeacd9c13f3e805e3f0086c9f22a4d93" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 16:16:48 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 16:16:48 2009 -0700" }, "message": "Merge branch \u0027futexes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027futexes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n futex: fix restart in wait_requeue_pi\n futex: fix restart for early wakeup in futex_wait_requeue_pi()\n futex: cleanup error exit\n futex: remove the wait queue\n futex: add requeue-pi documentation\n futex: remove FUTEX_REQUEUE_PI (non CMP)\n futex: fix futex_wait_setup key handling\n sparc64: extend TI_RESTART_BLOCK space by 8 bytes\n futex: fixup unlocked requeue pi case\n futex: add requeue_pi functionality\n futex: split out futex value validation code\n futex: distangle futex_requeue()\n futex: add FUTEX_HAS_TIMEOUT flag to restart.futex.flags\n rt_mutex: add proxy lock routines\n futex: split out fixup owner logic from futex_lock_pi()\n futex: split out atomic logic from futex_lock_pi()\n futex: add helper to find the top prio waiter of a futex\n futex: separate futex_wait_queue_me() logic from futex_wait()\n" }, { "commit": "be15f9d63b97da0065187696962331de6cd9de9e", "tree": "cc85c72e92afccfdcdfa851c4694a93f4ea22b84", "parents": [ "595dc54a1da91408a52c4b962f3deeb1109aaca0", "a789ed5fb6d0256c4177c2cc27e06520ddbe4d4c" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 16:16:27 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 16:16:27 2009 -0700" }, "message": "Merge branch \u0027x86-xen-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027x86-xen-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (42 commits)\n xen: cache cr0 value to avoid trap\u0027n\u0027emulate for read_cr0\n xen/x86-64: clean up warnings about IST-using traps\n xen/x86-64: fix breakpoints and hardware watchpoints\n xen: reserve Xen start_info rather than e820 reserving\n xen: add FIX_TEXT_POKE to fixmap\n lguest: update lazy mmu changes to match lguest\u0027s use of kvm hypercalls\n xen: honour VCPU availability on boot\n xen: add \"capabilities\" file\n xen: drop kexec bits from /sys/hypervisor since kexec isn\u0027t implemented yet\n xen/sys/hypervisor: change writable_pt to features\n xen: add /sys/hypervisor support\n xen/xenbus: export xenbus_dev_changed\n xen: use device model for suspending xenbus devices\n xen: remove suspend_cancel hook\n xen/dev-evtchn: clean up locking in evtchn\n xen: export ioctl headers to userspace\n xen: add /dev/xen/evtchn driver\n xen: add irq_from_evtchn\n xen: clean up gate trap/interrupt constants\n xen: set _PAGE_NX in __supported_pte_mask before pagetable construction\n ...\n" }, { "commit": "082b63ae45e7d14e15995dedd782ec7344596fb2", "tree": "b5e52149ecd6ac4a8951abbcf4bef5101bc60479", "parents": [ "99e97b860e14c64760855198e91d1166697131a7", "50fa610a3b6ba7cf91d7a92229177dfaff2b81a1" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 15:48:53 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 15:48:53 2009 -0700" }, "message": "Merge branch \u0027sched-docs-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-docs-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched: Document memory barriers implied by sleep/wake-up primitives\n" }, { "commit": "99e97b860e14c64760855198e91d1166697131a7", "tree": "fadc8368c3f784bff92fba82d983e7861559cf9d", "parents": [ "82782ca77d1bfb32b0334cce40a25b91bd8ec016", "f04d82b7e0c63d0251f9952a537a4bc4d73aa1a9" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 15:32:59 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 15:32:59 2009 -0700" }, "message": "Merge branch \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched: fix typo in sched-rt-group.txt file\n ftrace: fix typo about map of kernel priority in ftrace.txt file.\n sched: properly define the sched_group::cpumask and sched_domain::span fields\n sched, timers: cleanup avenrun users\n sched, timers: move calc_load() to scheduler\n sched: Don\u0027t export sched_mc_power_savings on multi-socket single core system\n sched: emit thread info flags with stack trace\n sched: rt: document the risk of small values in the bandwidth settings\n sched: Replace first_cpu() with cpumask_first() in ILB nomination code\n sched: remove extra call overhead for schedule()\n sched: use group_first_cpu() instead of cpumask_first(sched_group_cpus())\n wait: don\u0027t use __wake_up_common()\n sched: Nominate a power-efficient ilb in select_nohz_balancer()\n sched: Nominate idle load balancer from a semi-idle package.\n sched: remove redundant hierarchy walk in check_preempt_wakeup\n" }, { "commit": "82782ca77d1bfb32b0334cce40a25b91bd8ec016", "tree": "d8c73212af80ed9aa314612e2b8b9e6cf74c47f7", "parents": [ "f0d5e12bd42b7173ebbbf59279c867605f859814", "6799687a53a28536fd027ccb644833f66a778925" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 15:30:41 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 15:30:41 2009 -0700" }, "message": "Merge branch \u0027x86-kbuild-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027x86-kbuild-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (46 commits)\n x86, boot: add new generated files to the appropriate .gitignore files\n x86, boot: correct the calculation of ZO_INIT_SIZE\n x86-64: align __PHYSICAL_START, remove __KERNEL_ALIGN\n x86, boot: correct sanity checks in boot/compressed/misc.c\n x86: add extension fields for bootloader type and version\n x86, defconfig: update kernel position parameters\n x86, defconfig: update to current, no material changes\n x86: make CONFIG_RELOCATABLE the default\n x86: default CONFIG_PHYSICAL_START and CONFIG_PHYSICAL_ALIGN to 16 MB\n x86: document new bzImage fields\n x86, boot: make kernel_alignment adjustable; new bzImage fields\n x86, boot: remove dead code from boot/compressed/head_*.S\n x86, boot: use LOAD_PHYSICAL_ADDR on 64 bits\n x86, boot: make symbols from the main vmlinux available\n x86, boot: determine compressed code offset at compile time\n x86, boot: use appropriate rep string for move and clear\n x86, boot: zero EFLAGS on 32 bits\n x86, boot: set up the decompression stack as early as possible\n x86, boot: straighten out ranges to copy/zero in compressed/head*.S\n x86, boot: stylistic cleanups for boot/compressed/head_64.S\n ...\n\nFixed trivial conflict in arch/x86/configs/x86_64_defconfig manually\n" }, { "commit": "f0d5e12bd42b7173ebbbf59279c867605f859814", "tree": "f4018a726ecd2cf520afdf27210bfec1f3181718", "parents": [ "0fea615e526b4b7eff0363ee02d5753e5f924089", "103428e57be323c3c5545db8ad12667099bc6005" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 15:25:41 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 15:25:41 2009 -0700" }, "message": "Merge branch \u0027irq-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027irq-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (76 commits)\n x86, apic: Fix dummy apic read operation together with broken MP handling\n x86, apic: Restore irqs on fail paths\n x86: Print real IOAPIC version for x86-64\n x86: enable_update_mptable should be a macro\n sparseirq: Allow early irq_desc allocation\n x86, io-apic: Don\u0027t mark pin_programmed early\n x86, irq: don\u0027t call mp_config_acpi_gsi() if update_mptable is not enabled\n x86, irq: update_mptable needs pci_routeirq\n x86: don\u0027t call read_apic_id if !cpu_has_apic\n x86, apic: introduce io_apic_irq_attr\n x86/pci: add 4 more return parameters to IO_APIC_get_PCI_irq_vector(), fix\n x86: read apic ID in the !acpi_lapic case\n x86: apic: Fixmap apic address even if apic disabled\n x86: display extended apic registers with print_local_APIC and cpu_debug code\n x86: read apic ID in the !acpi_lapic case\n x86: clean up and fix setup_clear/force_cpu_cap handling\n x86: apic: Check rev 3 fadt correctly for physical_apic bit\n x86/pci: update pirq_enable_irq() to setup io apic routing\n x86/acpi: move setup io apic routing out of CONFIG_ACPI scope\n x86/pci: add 4 more return parameters to IO_APIC_get_PCI_irq_vector()\n ...\n" }, { "commit": "110bf2b764eb6026b868d84499263cb24b1bcc8d", "tree": "66c869f6f96497051c4bda0797e234b3f7b39e8f", "parents": [ "725c624a58a10ef90a2ff889e122158fabf36147" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Jun 09 17:29:07 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Jun 09 17:29:07 2009 -0400" }, "message": "tracing: add protection around module events unload\n\nWhen reading the trace buffer, there is a race that when a module\nis unloaded it removes events that is stilled referenced in the buffers.\nThis patch adds the protection around the unloading of the events\nfrom modules and the reading of the trace buffers.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "725c624a58a10ef90a2ff889e122158fabf36147", "tree": "0a233afc51fa5bc0717ff99f3004219da54dcd6b", "parents": [ "6556d1df88fe68f9836beeb43342a336691cb67c" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Mon Jun 08 19:09:45 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Jun 09 15:17:32 2009 -0400" }, "message": "tracing: add trace_seq_vprint interface\n\nThe code to update the print formats for events requires a vprintf\nformat in the trace_seq. This patch adds that interface.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "55782138e47d9baf2f7d3a7af9e7cf42adf72c56", "tree": "c7ccabae20e27bbeb08b69a358e8b86c98d1d9f3", "parents": [ "f57a8a1911342265e7acdc190333c4e9235a6632" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Tue Jun 09 13:43:05 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Jun 09 12:34:23 2009 -0400" }, "message": "tracing/events: convert block trace points to TRACE_EVENT()\n\nTRACE_EVENT is a more generic way to define tracepoints. Doing so adds\nthese new capabilities to this tracepoint:\n\n - zero-copy and per-cpu splice() tracing\n - binary tracing without printf overhead\n - structured logging records exposed under /debug/tracing/events\n - trace events embedded in function tracer output and other plugins\n - user-defined, per tracepoint filter expressions\n ...\n\nCons:\n\n - no dev_t info for the output of plug, unplug_timer and unplug_io events.\n no dev_t info for getrq and sleeprq events if bio \u003d\u003d NULL.\n no dev_t info for rq_abort,...,rq_requeue events if rq-\u003erq_disk \u003d\u003d NULL.\n\n This is mainly because we can\u0027t get the deivce from a request queue.\n But this may change in the future.\n\n - A packet command is converted to a string in TP_assign, not TP_print.\n While blktrace do the convertion just before output.\n\n Since pc requests should be rather rare, this is not a big issue.\n\n - In blktrace, an event can have 2 different print formats, but a TRACE_EVENT\n has a unique format, which means we have some unused data in a trace entry.\n\n The overhead is minimized by using __dynamic_array() instead of __array().\n\nI\u0027ve benchmarked the ioctl blktrace vs the splice based TRACE_EVENT tracing:\n\n dd dd + ioctl blktrace dd + TRACE_EVENT (splice)\n1 7.36s, 42.7 MB/s 7.50s, 42.0 MB/s 7.41s, 42.5 MB/s\n2 7.43s, 42.3 MB/s 7.48s, 42.1 MB/s 7.43s, 42.4 MB/s\n3 7.38s, 42.6 MB/s 7.45s, 42.2 MB/s 7.41s, 42.5 MB/s\n\nSo the overhead of tracing is very small, and no regression when using\nthose trace events vs blktrace.\n\nAnd the binary output of TRACE_EVENT is much smaller than blktrace:\n\n # ls -l -h\n -rw-r--r-- 1 root root 8.8M 06-09 13:24 sda.blktrace.0\n -rw-r--r-- 1 root root 195K 06-09 13:24 sda.blktrace.1\n -rw-r--r-- 1 root root 2.7M 06-09 13:25 trace_splice.out\n\nFollowing are some comparisons between TRACE_EVENT and blktrace:\n\nplug:\n kjournald-480 [000] 303.084981: block_plug: [kjournald]\n kjournald-480 [000] 303.084981: 8,0 P N [kjournald]\n\nunplug_io:\n kblockd/0-118 [000] 300.052973: block_unplug_io: [kblockd/0] 1\n kblockd/0-118 [000] 300.052974: 8,0 U N [kblockd/0] 1\n\nremap:\n kjournald-480 [000] 303.085042: block_remap: 8,0 W 102736992 + 8 \u003c- (8,8) 33384\n kjournald-480 [000] 303.085043: 8,0 A W 102736992 + 8 \u003c- (8,8) 33384\n\nbio_backmerge:\n kjournald-480 [000] 303.085086: block_bio_backmerge: 8,0 W 102737032 + 8 [kjournald]\n kjournald-480 [000] 303.085086: 8,0 M W 102737032 + 8 [kjournald]\n\ngetrq:\n kjournald-480 [000] 303.084974: block_getrq: 8,0 W 102736984 + 8 [kjournald]\n kjournald-480 [000] 303.084975: 8,0 G W 102736984 + 8 [kjournald]\n\n bash-2066 [001] 1072.953770: 8,0 G N [bash]\n bash-2066 [001] 1072.953773: block_getrq: 0,0 N 0 + 0 [bash]\n\nrq_complete:\n konsole-2065 [001] 300.053184: block_rq_complete: 8,0 W () 103669040 + 16 [0]\n konsole-2065 [001] 300.053191: 8,0 C W 103669040 + 16 [0]\n\n ksoftirqd/1-7 [001] 1072.953811: 8,0 C N (5a 00 08 00 00 00 00 00 24 00) [0]\n ksoftirqd/1-7 [001] 1072.953813: block_rq_complete: 0,0 N (5a 00 08 00 00 00 00 00 24 00) 0 + 0 [0]\n\nrq_insert:\n kjournald-480 [000] 303.084985: block_rq_insert: 8,0 W 0 () 102736984 + 8 [kjournald]\n kjournald-480 [000] 303.084986: 8,0 I W 102736984 + 8 [kjournald]\n\nChangelog from v2 -\u003e v3:\n\n- use the newly introduced __dynamic_array().\n\nChangelog from v1 -\u003e v2:\n\n- use __string() instead of __array() to minimize the memory required\n to store hex dump of rq-\u003ecmd().\n\n- support large pc requests.\n\n- add missing blk_fill_rwbs_rq() in block_rq_requeue TRACE_EVENT.\n\n- some cleanups.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A2DF669.5070905@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "f57a8a1911342265e7acdc190333c4e9235a6632", "tree": "db7aecf9dc26311068a48da77022e0377bf5d3d6", "parents": [ "1f8a6a10fb9437eac3f516ea4324a19087872f30" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Jun 05 14:11:30 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Jun 09 12:33:30 2009 -0400" }, "message": "ring-buffer: fix ret in rb_add_time_stamp\n\nThe update of ret got mistakenly added to the if statement of\nrb_try_to_discard. The variable ret should be 1 on commit and zero\notherwise.\n\n[ Impact: fix compiler warning and real bug ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "eaa958402ea40851097d051f52ba1bb7a885efe9", "tree": "9187f59ff0ee6ac138b5c81a2212bc10f46d04a5", "parents": [ "0281b5dc0350cbf6dd21ed558a33cccce77abc02" ], "author": { "name": "Yinghai Lu", "email": "yinghai@kernel.org", "time": "Sat Jun 06 14:51:36 2009 -0700" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Tue Jun 09 22:30:27 2009 +0930" }, "message": "cpumask: alloc zeroed cpumask for static cpumask_var_ts\n\nThese are defined as static cpumask_var_t so if MAXSMP is not used,\nthey are cleared already. Avoid surprises when MAXSMP is enabled.\n\nSigned-off-by: Yinghai Lu \u003cyinghai.lu@kernel.org\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n" }, { "commit": "0b4ec6e4e01d98e55ae325a41304cccd87fa4c0f", "tree": "1e075fdf4aaf0c5c003564b3f3414bb4a92ef2ed", "parents": [ "04288f42033607099cebf5ca15ce8dcec3a9688b", "3af968e066d593bc4dacc021715f3e95ddf0996f" ], "author": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Tue Jun 09 09:27:53 2009 +1000" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Tue Jun 09 09:27:53 2009 +1000" }, "message": "Merge branch \u0027master\u0027 into next\n" }, { "commit": "1f8a6a10fb9437eac3f516ea4324a19087872f30", "tree": "944f73519ef205c3baccd130d93ed70f7e7bc790", "parents": [ "918143e8b7d6153d7a83a3f854323407939f4a7e" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Mon Jun 08 18:18:39 2009 +0200" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Jun 08 18:50:20 2009 -0400" }, "message": "ring-buffer: pass in lockdep class key for reader_lock\n\nOn Sun, 7 Jun 2009, Ingo Molnar wrote:\n\u003e Testing tracer sched_switch: \u003c6\u003eStarting ring buffer hammer\n\u003e PASSED\n\u003e Testing tracer sysprof: PASSED\n\u003e Testing tracer function: PASSED\n\u003e Testing tracer irqsoff:\n\u003e \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\u003e PASSED\n\u003e Testing tracer preemptoff: PASSED\n\u003e Testing tracer preemptirqsoff: [ INFO: possible recursive locking detected ]\n\u003e PASSED\n\u003e Testing tracer branch: 2.6.30-rc8-tip-01972-ge5b9078-dirty #5760\n\u003e ---------------------------------------------\n\u003e rb_consumer/431 is trying to acquire lock:\n\u003e (\u0026cpu_buffer-\u003ereader_lock){......}, at: [\u003cc109eef7\u003e] ring_buffer_reset_cpu+0x37/0x70\n\u003e\n\u003e but task is already holding lock:\n\u003e (\u0026cpu_buffer-\u003ereader_lock){......}, at: [\u003cc10a019e\u003e] ring_buffer_consume+0x7e/0xc0\n\u003e\n\u003e other info that might help us debug this:\n\u003e 1 lock held by rb_consumer/431:\n\u003e #0: (\u0026cpu_buffer-\u003ereader_lock){......}, at: [\u003cc10a019e\u003e] ring_buffer_consume+0x7e/0xc0\n\nThe ring buffer is a generic structure, and can be used outside of\nftrace. If ftrace traces within the use of the ring buffer, it can produce\nfalse positives with lockdep.\n\nThis patch passes in a static lock key into the allocation of the ring\nbuffer, so that different ring buffers will have their own lock class.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1244477919.13761.9042.camel@twins\u003e\n\n[ store key in ring buffer descriptor ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "3af968e066d593bc4dacc021715f3e95ddf0996f", "tree": "37851a67d855e228d503a569973469b067ef218a", "parents": [ "46056be71c37378f518711da651e4bb76d650ee9" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jun 08 12:31:53 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jun 08 12:31:53 2009 -0700" }, "message": "async: Fix lack of boot-time console due to insufficient synchronization\n\nOur async work synchronization was broken by \"async: make sure\nindependent async domains can\u0027t accidentally entangle\" (commit\nd5a877e8dd409d8c702986d06485c374b705d340), because it would report\nthe wrong lowest active async ID when there was both running and\npending async work.\n\nThis caused things like no being able to read the root filesystem,\nresulting in missing console devices and inability to run \u0027init\u0027,\ncausing a boot-time panic.\n\nThis fixes it by properly returning the lowest pending async ID: if\nthere is any running async work, that will have a lower ID than any\npending work, and we should _not_ look at the pending work list.\n\nThere were alternative patches from Jaswinder and James, but this one\nalso cleans up the code by removing the pointless \u0027ret\u0027 variable and\nthe unnecesary testing for an empty list around \u0027for_each_entry()\u0027 (if\nthe list is empty, the for_each_entry() thing just won\u0027t execute).\n\nFixes-bug: http://bugzilla.kernel.org/show_bug.cgi?id\u003d13474\nReported-and-tested-by: Chris Clayton \u003cchris2553@googlemail.com\u003e\nCc: Jaswinder Singh Rajput \u003cjaswinder@kernel.org\u003e\nCc: James Bottomley \u003cJames.Bottomley@HansenPartnership.com\u003e\nCc: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "918143e8b7d6153d7a83a3f854323407939f4a7e", "tree": "34c0b1434516d146fc3811a6d071b052dd59342b", "parents": [ "64edbc562034f2ec3fce382cb208fab40586d005", "563af16c30ede41eda2d614195d88e07f7c7103d" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jun 05 16:50:29 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jun 05 16:50:29 2009 +0200" }, "message": "Merge branch \u0027tip/tracing/ftrace-4\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/ftrace\n" }, { "commit": "edaba2c5334492f82d39ec35637c6dea5176a977", "tree": "d05ee0eacdb0c725da8374e9c1f38a4808dfdd2e", "parents": [ "08f67461c609ad96bf26732b590569e02e322019" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Thu Jun 04 16:29:09 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 04 18:07:40 2009 -0700" }, "message": "ptrace: revert \"ptrace_detach: the wrong wakeup breaks the ERESTARTxxx logic\"\n\nCommit 95a3540da9c81a5987be810e1d9a83640a366bd5 (\"ptrace_detach: the wrong\nwakeup breaks the ERESTARTxxx logic\") removed the \"extra\"\nwake_up_process() from ptrace_detach(), but as Jan pointed out this breaks\nthe compatibility.\n\nI believe the changelog is right and this wake_up() is wrong in many\nways, but GDB assumes that ptrace(PTRACE_DETACH, child, 0, 0) always\nwakes up the tracee.\n\nDespite the fact this breaks SIGNAL_STOP_STOPPED/group_stop_count logic,\nand despite the fact this wake_up_process() can break another\nassumption: PTRACE_DETACH with SIGSTOP should leave the tracee in\nTASK_STOPPED case. Because the untraced child can dequeue SIGSTOP and\ncall do_signal_stop() before ptrace_detach() calls wake_up_process().\n\nRevert this change for now. We need some fixes even if we we want to keep\nthe current behaviour, but these fixes are not for 2.6.30.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Jan Kratochvil \u003cjan.kratochvil@redhat.com\u003e\nCc: Denys Vlasenko \u003cdvlasenk@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": "087eb437051b3de817720f9c80c440fc9e7dcce8", "tree": "25a72acabe05c3e72dddd942855d4245dfae4b82", "parents": [ "b87297fb405ef13cac375f202d114323b076a56d" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Thu Jun 04 16:29:07 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 04 18:07:40 2009 -0700" }, "message": "ptrace: tracehook_report_clone: fix false positives\n\nThe \"trace || CLONE_PTRACE\" check in tracehook_report_clone() is not right,\n\n- If the untraced task does clone(CLONE_PTRACE) the new child is not traced,\n we must not queue SIGSTOP.\n\n- If we forked the traced task, but the tracer exits and untraces both the\n forking task and the new child (after copy_process() drops tasklist_lock),\n we should not queue SIGSTOP too.\n\nChange the code to check task_ptrace() !\u003d 0 instead. This is still racy, but\nthe race is harmless.\n\nWe can race with another tracer attaching to this child, or the tracer can\nexit and detach in parallel. But giwen that we didn\u0027t do wake_up_new_task()\nyet, the child must have the pending SIGSTOP anyway.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Christoph Hellwig \u003chch@infradead.org\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": "64edbc562034f2ec3fce382cb208fab40586d005", "tree": "7fbfaaea9467d14a1a6ac5667ce01be5ccb9b635", "parents": [ "43bd1236234cacbc18d1476a9b57e7a306efddf5", "0f6ce3de4ef6ff940308087c49760d068851c1a7" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jun 04 13:59:26 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jun 04 13:59:40 2009 +0200" }, "message": "Merge branch \u0027tracing/ftrace\u0027 into tracing/core\n\nMerge reason: this mini-topic had outstanding problems that delayed\n its merge, so it does not fast-forward.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e0a94c2a63f2644826069044649669b5e7ca75d3", "tree": "debf8a9af6ac23dadd116dc1cd1f9dcefe9629c6", "parents": [ "7d2948b1248109dbc7f4aaf9867c54b1912d494c" ], "author": { "name": "Christoph Lameter", "email": "cl@linux-foundation.org", "time": "Wed Jun 03 16:04:31 2009 -0400" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Thu Jun 04 12:07:48 2009 +1000" }, "message": "security: use mmap_min_addr indepedently of security models\n\nThis patch removes the dependency of mmap_min_addr on CONFIG_SECURITY.\nIt also sets a default mmap_min_addr of 4096.\n\nmmapping of addresses below 4096 will only be possible for processes\nwith CAP_SYS_RAWIO.\n\nSigned-off-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nAcked-by: Eric Paris \u003ceparis@redhat.com\u003e\nLooks-ok-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "563af16c30ede41eda2d614195d88e07f7c7103d", "tree": "a56b4f3339b8850b8f1fd9064bb99d50cd99aa79", "parents": [ "56d8bd3f0b98972312cad683947ec90b21011199" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Jun 03 11:10:44 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Jun 03 11:10:44 2009 -0400" }, "message": "tracing: add annotation to what type of stack trace is recorded\n\nThe current method of printing out a stack trace is to add a new line\nand print out the trace:\n\n yum-updatesd-3120 [002] 573.691303:\n \u003d\u003e do_softirq\n \u003d\u003e irq_exit\n \u003d\u003e smp_apic_timer_interrupt\n \u003d\u003e apic_timer_interrupt\n\nThis looks a bit awkward, and if we have both stack and user stack traces\nrunning, it would be nice to have a title to tell them apart, although\nit is easy to tell by the output.\n\nThis patch adds an annotation to the start of the stack traces:\n\n init-1 [003] 929.304979: \u003cstack trace\u003e\n \u003d\u003e user_path_at\n \u003d\u003e vfs_fstatat\n \u003d\u003e vfs_stat\n \u003d\u003e sys_newstat\n \u003d\u003e system_call_fastpath\n\n cat-3459 [002] 1016.824040: \u003cuser stack trace\u003e\n \u003d\u003e \u003c0000003aae6c0250\u003e\n \u003d\u003e \u003c00007ffff4b06ae4\u003e\n \u003d\u003e \u003c69636172742f6775\u003e\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "56d8bd3f0b98972312cad683947ec90b21011199", "tree": "8ed2bb43d0f00923dd81b5b2c19c91b09e3977c6", "parents": [ "048dc50c5e7eada19ebabbad70b7966d14283d41" ], "author": { "name": "Steven Whitehouse", "email": "swhiteho@redhat.com", "time": "Wed Jun 03 14:52:03 2009 +0100" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Jun 03 10:29:48 2009 -0400" }, "message": "tracing: fix multiple use of __print_flags and __print_symbolic\n\nHere is an updated patch to include the extra call to\ntrace_seq_init() as requested. This is vs. the latest\n-tip tree and fixes the use of multiple __print_flags\nand __print_symbolic in a single tracer. Also tested\nto ensure its working now:\n\nmount.gfs2-2534 [000] 235.850587: gfs2_glock_queue: 8.7 glock 1:2 dequeue PR\nmount.gfs2-2534 [000] 235.850591: gfs2_demote_rq: 8.7 glock 1:0 demote EX to NL flags:DI\nmount.gfs2-2534 [000] 235.850591: gfs2_glock_queue: 8.7 glock 1:0 dequeue EX\nglock_workqueue-2529 [000] 235.850666: gfs2_glock_state_change: 8.7 glock 1:0 state EX \u003d\u003e NL tgt:NL dmt:NL flags:lDpI\nglock_workqueue-2529 [000] 235.850672: gfs2_glock_put: 8.7 glock 1:0 state NL \u003d\u003e IV flags:I\n\nSigned-off-by: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\nLKML-Reference: \u003c1244037123.29604.603.camel@localhost.localdomain\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "048dc50c5e7eada19ebabbad70b7966d14283d41", "tree": "2d81fa88cfb5ebd5ee2622b4eb7632b1f369a567", "parents": [ "f11b3f4e2932bfdcfc458ab8d1ece62724ceabfc" ], "author": { "name": "walimis", "email": "walimisdev@gmail.com", "time": "Wed Jun 03 16:01:30 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Jun 03 10:25:30 2009 -0400" }, "message": "tracing/events: fix output format of user stack\n\nAccording to \"events/ftrace/user_stack/format\", fix the output of\nuser stack.\n\nbefore fix:\n\n sh-1073 [000] 31.137561: \u003cb7f274fe\u003e \u003c- \u003c0804e33c\u003e \u003c- \u003c080835c1\u003e\n\nafter fix:\n\n sh-1072 [000] 37.039329:\n \u003d\u003e \u003cb7f8a4fe\u003e\n \u003d\u003e \u003c0804e33c\u003e\n \u003d\u003e \u003c080835c1\u003e\n\nSigned-off-by: walimis \u003cwalimisdev@gmail.com\u003e\nLKML-Reference: \u003c1244016090-7814-3-git-send-email-walimisdev@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "f11b3f4e2932bfdcfc458ab8d1ece62724ceabfc", "tree": "7cfd2a8b955b27eea4c0d5860e9a92fdc91b8024", "parents": [ "083a63b48e4dd0a6a2d44216720076dc81ebb255" ], "author": { "name": "walimis", "email": "walimisdev@gmail.com", "time": "Wed Jun 03 16:01:29 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Jun 03 10:25:15 2009 -0400" }, "message": "tracing/events: fix output format of kernel stack\n\nAccording to \"events/ftrace/kernel_stack/format\", output format of\nkernel stack should use \"\u003d\u003e\" instead of \"\u003c\u003d\".\n\nThe second problem is that we shouldn\u0027t skip the first entry in the stack,\nalthough it seems to be duplicated when used in the \"function\" tracer,\nbut events also use it. If we skip the first one, we will drop the topmost\nentry of the stack.\n\nThe last problem is that if the last entry is ULONG_MAX(0xffffffff), we should\ndrop it, otherwise it will print a NULL name line.\n\nbefore fix:\n\n sh-1072 [000] 26.957239: sched_process_fork: parent sh:1072 child sh:1073\n sh-1072 [000] 26.957262:\n \u003c\u003d syscall_call\n \u003c\u003d\n sh-1072 [000] 26.957744: sched_switch: task sh:1072 [120] (R) \u003d\u003d\u003e sh:1073 [120]\n sh-1072 [000] 26.957752:\n \u003c\u003d preempt_schedule\n \u003c\u003d wake_up_new_task\n \u003c\u003d do_fork\n \u003c\u003d sys_clone\n \u003c\u003d syscall_call\n \u003c\u003d\n\nAfter fix:\n\n sh-1075 [000] 39.791848: sched_process_fork: parent sh:1075 child sh:1076\n sh-1075 [000] 39.791871:\n \u003d\u003e sys_clone\n \u003d\u003e syscall_call\n sh-1075 [000] 39.792713: sched_switch: task sh:1075 [120] (R) \u003d\u003d\u003e sh:1076 [120]\n sh-1075 [000] 39.792722:\n \u003d\u003e schedule\n \u003d\u003e preempt_schedule\n \u003d\u003e wake_up_new_task\n \u003d\u003e do_fork\n \u003d\u003e sys_clone\n \u003d\u003e syscall_call\n\nSigned-off-by: walimis \u003cwalimisdev@gmail.com\u003e\nLKML-Reference: \u003c1244016090-7814-2-git-send-email-walimisdev@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "083a63b48e4dd0a6a2d44216720076dc81ebb255", "tree": "c63fe5fed8b44538ecb6870cbe99c45d32915f9e", "parents": [ "ea05b57cc19234d8de9887c8a32c2e58e84b56ba" ], "author": { "name": "walimis", "email": "walimisdev@gmail.com", "time": "Wed Jun 03 16:01:28 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Jun 03 10:24:44 2009 -0400" }, "message": "tracing/trace_stack: fix the number of entries in the header\n\nThe last entry in the stack_dump_trace is ULONG_MAX, which is not\na valid entry, but max_stack_trace.nr_entries has accounted for it.\nSo when printing the header, we should decrease it by one.\nBefore fix, print as following, for example:\n\n\tDepth Size Location (53 entries)\t\u003c--- should be 52\n\t----- ---- --------\n 0) 3264 108 update_wall_time+0x4d5/0x9a0\n ...\n 51) 80 80 syscall_call+0x7/0xb\n ^^^\n it\u0027s correct.\n\nSigned-off-by: walimis \u003cwalimisdev@gmail.com\u003e\nLKML-Reference: \u003c1244016090-7814-1-git-send-email-walimisdev@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "ea05b57cc19234d8de9887c8a32c2e58e84b56ba", "tree": "6153db3dab161d495207114359b8c09944567f0c", "parents": [ "edd813bffc62a980bb4fb9b1243f31c1cce78da3" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Jun 03 09:30:10 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Jun 03 10:15:25 2009 -0400" }, "message": "ring-buffer: discard timestamps that are at the start of the buffer\n\nEvery buffer page in the ring buffer includes its own time stamp.\nWhen an event is recorded to the ring buffer with a delta time greater\nthan what can be held in the event header, a time stamp event is created.\n\nIf the the create timestamp falls over to the next buffer page, it is\nredundant because the buffer page holds a full time stamp. This patch\nwill try to discard the time stamp when it falls to the start of the\nnext page.\n\nThis change also fixes a issues with disarding events. If most events are\ndiscarded, timestamps will start to creep into the ring buffer. If we\ndo not discard the timestamps then they can fill up the ring buffer over\ntime and waste space.\n\nThis change will keep time stamps from filling up over another page. If\nsomething is recorded in the buffer page, and the rest is filtered, then\nthe time stamps can only fill up to the end of the page.\n\n[ Impact: prevent time stamps from filling ring buffer ]\n\nReported-by: Tim Bird \u003ctim.bird@am.sony.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "edd813bffc62a980bb4fb9b1243f31c1cce78da3", "tree": "45dd8b0ca7b74f05bd545a1c3c7c4d2137f1b1d0", "parents": [ "a2023556409cf7fec5d67a26f7fcfa57c5a4086d" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Jun 02 23:00:53 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Jun 03 10:15:22 2009 -0400" }, "message": "ring-buffer: try to discard unneeded timestamps\n\nThere are times that a race may happen that we add a timestamp in a\nnested write. This timestamp would just contain a zero delta and serves\nno purpose.\n\nNow that we have a way to discard events, this patch will try to discard\nthe timestamp instead of just wasting the space in the ring buffer.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "a2023556409cf7fec5d67a26f7fcfa57c5a4086d", "tree": "85d8824dd8989c62dc8f28feb2ee79f570f6872f", "parents": [ "0f6ce3de4ef6ff940308087c49760d068851c1a7" ], "author": { "name": "Tim Bird", "email": "tim.bird@am.sony.com", "time": "Tue Jun 02 17:06:54 2009 -0700" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Jun 03 10:15:06 2009 -0400" }, "message": "ring-buffer: fix bug in ring_buffer_discard_commit\n\nThere\u0027s a bug in ring_buffer_discard_commit. The wrong\npointer is being compared in order to check if the event\ncan be freed from the buffer rather than discarded\n(i.e. marked as PAD).\n\nI noticed this when I was working on duration filtering.\nThe bug is not deadly - it just results in lots of wasted\nspace in the buffer. All filtered events are left in\nthe buffer and marked as discarded, rather than being\nremoved from the buffer to make space for other events.\n\nUnfortunately, when I fixed this bug, I got errors doing a\nfiltered function trace. Multiple TIME_EXTEND\nevents pile up in the buffer, and trigger the\nfollowing loop overage warning in rb_iter_peek():\n\nagain:\n\t...\n\tif (RB_WARN_ON(cpu_buffer, ++nr_loops \u003e 10))\n\t\treturn NULL;\n\nI\u0027m not sure what the best way is to fix this. I don\u0027t\nknow if I should extend the loop threshhold, or if I should\nmake the test more complex (ignore TIME_EXTEND\nevents), or just get rid of this loop check completely.\n\nNote that if I implement a workaround for this, then I\nsee another problem from rb_advance_iter(). I haven\u0027t\ntracked that one down yet.\n\nIn general, it seems like the case of removing filtered\nevents has not been working properly, and so some assumptions\nabout buffer invariant conditions need to be revisited.\n\nHere\u0027s the patch for the simple fix:\n\nCompare correct pointer for checking if an event can be\nfreed rather than left as discarded in the buffer.\n\nSigned-off-by: Tim Bird \u003ctim.bird@am.sony.com\u003e\nLKML-Reference: \u003c4A25BE9E.5090909@am.sony.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "84047e360af0394ac5861d433f26bbcf30f77dd1", "tree": "55848e2ca4856a64b348a57ecca495c2f065aa0f", "parents": [ "f7e8b616ed1cc6f790b82324bce8a2a60295e5c2" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Jun 02 16:51:55 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Jun 02 16:51:55 2009 -0400" }, "message": "function-graph: always initialize task ret_stack\n\nOn creating a new task while running the function graph tracer, if\nwe fail to allocate the ret_stack, and then fail the fork, the\ncode will free the parent ret_stack. This is because the child\nduplicated the parent and currently points to the parent\u0027s ret_stack.\n\nThis patch always initializes the task\u0027s ret_stack to NULL.\n\n[ Impact: prevent crash of parent on low memory during fork ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "f7e8b616ed1cc6f790b82324bce8a2a60295e5c2", "tree": "e46e50692d90ddcccf159accdcdd655d3dd0ffa5", "parents": [ "26c01624a2a40f8a4ddf6449b65c9b1c418d0e72" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Jun 02 16:39:48 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Jun 02 16:49:57 2009 -0400" }, "message": "function-graph: move initialization of new tasks up in fork\n\nWhen the function graph tracer is enabled, all new tasks must allocate\na ret_stack to place the return address of functions. This is because\nthe function graph tracer will replace the real return address with a\ncall to the tracing of the exit function.\n\nThis initialization happens in fork, but it happens too late. If fork\nfails, then it will call free_task and that calls the freeing of this\nret_stack. But before initialization happens, the new (failed) task\npoints to its parents ret_stack. If a fork failure happens during\nthe function trace, it would be catastrophic for the parent.\n\nAlso, there\u0027s no need to call ftrace_graph_exit_task from fork, since\nit is called by free_task which fork calls on failure.\n\n[ Impact: prevent crash during failed fork running function graph tracer ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "26c01624a2a40f8a4ddf6449b65c9b1c418d0e72", "tree": "eeff81aa0fa56ba1f2c180d4ec6e64cb31af898e", "parents": [ "82310a3272d5a2a7652f5649ad8a55f58c8f74d9" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Jun 02 14:01:19 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Jun 02 14:42:17 2009 -0400" }, "message": "function-graph: add memory barriers for accessing task\u0027s ret_stack\n\nThe code that handles the tasks ret_stack allocation for every task\nassumes that only an interrupt can cause issues (even though interrupts\nare disabled).\n\nIn reality, the code is allocating the ret_stack for tasks that may be\nrunning on other CPUs and there are not efficient memory barriers to\nhandle this case.\n\n[ Impact: prevent crash due to using of uninitialized ret_stack variables ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "82310a3272d5a2a7652f5649ad8a55f58c8f74d9", "tree": "c909c7a3f1fd3430f64be1d4aa8aff84fdf45b04", "parents": [ "179c498ae2998461fe436437a74dc29036fc7dcc" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Jun 02 12:26:07 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Jun 02 14:41:50 2009 -0400" }, "message": "function-graph: enable the stack after initialization of other variables\n\nThe function graph tracer checks if the task_struct has ret_stack defined\nto know if it is OK or not to use it. The initialization is done for\nall tasks by one process, but the idle tasks use the same initialization\nused by new tasks.\n\nIf an interrupt happens on an idle task that just had the ret_stack\ncreated, but before the rest of the initialization took place, then\nwe can corrupt the return address of the functions.\n\nThis patch moves the setting of the task_struct\u0027s ret_stack to after\nthe other variables have been initialized.\n\n[ Impact: prevent kernel panic on idle task when starting function graph ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "179c498ae2998461fe436437a74dc29036fc7dcc", "tree": "7794227a9cc45c2ec22d3e3b3062a96d34e8b0b9", "parents": [ "88fc86c283d9c3854e67e4155808027bc2519eb6" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Jun 02 12:03:19 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Jun 02 12:03:19 2009 -0400" }, "message": "function-graph: only allocate init tasks if it was not already done\n\nWhen the function graph tracer is enabled, it calls the initialization\nneeded for the init tasks that would be called on all created tasks.\n\nThe problem is that this is called every time the function graph tracer\nis enabled, and the ret_stack is allocated for the idle tasks each time.\nThus, the old ret_stack is lost and a memory leak is created.\n\nThis is also dangerous because if an interrupt happened on another CPU\nwith the init task and the ret_stack is replaced, we then lose all the\nreturn pointers for the interrupt, and a crash would take place.\n\n[ Impact: fix memory leak and possible crash due to race ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "0f6ce3de4ef6ff940308087c49760d068851c1a7", "tree": "26a732ee4dd5b0f5612f0385893ec483c6ba4ab3", "parents": [ "112f38a7e36e9d688b389507136bf3af3e6d159b" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Mon Jun 01 21:51:28 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Jun 01 23:26:23 2009 -0400" }, "message": "ftrace: do not profile functions when disabled\n\nA race was found that if one were to enable and disable the function\nprofiler repeatedly, then the system can panic. This was because a profiled\nfunction may be preempted just before disabling interrupts. While\nthe profiler is disabled and then reenabled, the preempted function\ncould start again, and access the hash as it is being initialized.\n\nThis just adds a check in the irq disabled part to check if the profiler\nis enabled, and if it is not then it will just exit.\n\nWhen the system is disabled, the profile_enabled variable is cleared\nbefore calling the unregistering of the function profiler. This\nunregistering calls stop machine which also acts as a synchronize schedule.\n\n[ Impact: fix panic in enabling/disabling function profiler ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "112f38a7e36e9d688b389507136bf3af3e6d159b", "tree": "e63fd02a143c57b5a786351e4f2643f2104e2346", "parents": [ "1d080d6c3141623c92caaebe20e847cb99ccbb60" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Mon Jun 01 15:16:05 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Jun 01 23:26:02 2009 -0400" }, "message": "tracing: make trace pipe recognize latency format flag\n\nThe trace_pipe did not recognize the latency format flag and would produce\ndifferent output than the trace file. The problem was partly due that\nthe trace flags in the iterator was not set as well as the trace_pipe\nzeros out part of the iterator (including the flags) to be able to use\nthe same routines as the trace file. trace_flags of the iterator should\nnot cause any problems when not zeroed out by for trace_pipe.\n\nReported-by: Johannes Berg \u003cjohannes@sipsolutions.net\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "ec081ddc3d90aab35bc0de19a358b964978837cf", "tree": "a8c4128a3eb8e5917cc67cd0a3aee8f1e93c9205", "parents": [ "7fcb7c472f455d1711eb5a7633204dba8800a6d6" ], "author": { "name": "Steven Whitehouse", "email": "swhiteho@redhat.com", "time": "Mon Jun 01 15:53:35 2009 +0100" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Jun 01 23:25:29 2009 -0400" }, "message": "tracing: add exports to use __print_symbolic and __print_flags from a module\n\nA patch to allow the use of __print_symbolic and __print_flags\nfrom a module. This allows the current GFS2 tracing patch to\nbuild.\n\nSigned-off-by: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\nLKML-Reference: \u003c1243868015.29604.542.camel@localhost.localdomain\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "7fcb7c472f455d1711eb5a7633204dba8800a6d6", "tree": "ba64de513bdbe5550c6fc08078a356359830ec99", "parents": [ "a9c1c3abe1160a5632e48c929b02b740556bf423" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon Jun 01 15:35:46 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Jun 01 23:25:15 2009 -0400" }, "message": "tracing/events: introduce __dynamic_array()\n\n__string() is limited:\n\n - it\u0027s a char array, but we may want to define array with other types\n - a source string should be available, but we may just know the string size\n\nWe introduce __dynamic_array() to break those limitations, and __string()\nbecomes a wrapper of it. As a side effect, now __get_str() can be used\nin TP_fast_assign but not only TP_print.\n\nTake XFS for example, we have the string length in the dirent, but the\nstring itself is not NULL-terminated, so __dynamic_array() can be used:\n\nTRACE_EVENT(xfs_dir2,\n\tTP_PROTO(struct xfs_da_args *args),\n\tTP_ARGS(args),\n\n\tTP_STRUCT__entry(\n\t\t__field(int, namelen)\n\t\t__dynamic_array(char, name, args-\u003enamelen + 1)\n\t\t...\n\t),\n\n\tTP_fast_assign(\n\t\tchar *name \u003d __get_str(name);\n\n\t\tif (args-\u003enamelen)\n\t\t\tmemcpy(name, args-\u003ename, args-\u003enamelen);\n\t\tname[args-\u003enamelen] \u003d \u0027\\0\u0027;\n\n\t\t__entry-\u003enamelen \u003d args-\u003enamelen;\n\t),\n\n\tTP_printk(\"name %.*s namelen %d\",\n\t\t __entry-\u003enamelen ? __get_str(name) : NULL\n\t\t __entry-\u003enamelen)\n);\n\n[ Impact: allow defining dynamic size arrays ]\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A2384D2.3080403@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "897f17a65389a26509bd0c79a9812d1c9ea8ea6f", "tree": "ec23bdc97840581c6f4881f6e427c66d72a1269c", "parents": [ "5e0a093910876882f91f1d4b8a1635a099e6c7ba" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu May 28 16:31:21 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Jun 01 23:23:55 2009 -0400" }, "message": "tracing: combine the default tracers into one config\n\nBoth event tracer and sched switch plugin are selected by default\nby all generic tracers. But if no generic tracer is enabled, their options\nappear. But ether one of them will select the other, thus it only\nmakes sense to have the default tracers be selected by one option.\n\n[ Impact: clean up kconfig menu ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "5e0a093910876882f91f1d4b8a1635a099e6c7ba", "tree": "2e9fb5caa629c2f1f77f82a78863366b82ad05f6", "parents": [ "2af15d6a44b871ad4c2a651302374cde8f335480" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu May 28 15:50:13 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Jun 01 23:23:30 2009 -0400" }, "message": "tracing: fix config options to not show when automatically selected\n\nThere are two options that are selected by all tracers, but we want\nto have those options available when no tracer is selected. These are\n\n The event tracer and sched switch tracer.\n\nThe are enabled by all tracers, but if a tracer is not selected we want\nthe options to appear. All tracers including them select TRACING.\nThus what we would like to do is:\n\n config EVENT_TRACER\n\tbool \"prompt\"\n\tdepends on TRACING\n\tselect TRACING\n\nBut that gives us a bug in the kbuild system since we just created a\ncircular dependency. We only want the prompt to show when TRACING is off.\n\nThis patch adds GENERIC_TRACER that all tracers will select instead of\nTRACING. The two options (sched switch and event tracer) will select\nTRACING directly and depend on !GENERIC_TRACER. This solves the cicular\ndependency.\n\n[ Impact: hide options that are selected by default ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "2af15d6a44b871ad4c2a651302374cde8f335480", "tree": "39f06d511e3e1d1970fe4571128549c1c26230c1", "parents": [ "f2aebaee653a35b01c3665de2cbb1e31456b8ea8" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu May 28 13:37:24 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Jun 01 23:23:10 2009 -0400" }, "message": "ftrace: add kernel command line function filtering\n\nWhen using ftrace\u003dfunction on the command line to trace functions\non boot up, one can not filter out functions that are commonly called.\n\nThis patch adds two new ftrace command line commands.\n\n ftrace_notrace\u003dfunction-list\n ftrace_filter\u003dfunction-list\n\nWhere function-list is a comma separated list of functions to filter.\nThe ftrace_notrace will make the functions listed not be included\nin the function tracing, and ftrace_filter will only trace the functions\nlisted.\n\nThese two act the same as the debugfs/tracing/set_ftrace_notrace and\ndebugfs/tracing/set_ftrace_filter respectively.\n\nThe simple glob expressions that are allowed by the filter files can also\nbe used by the command line interface.\n\n\tftrace_notrace\u003drcu*,*lock,*spin*\n\nWill not trace any function that starts with rcu, ends with lock, or has\nthe word spin in it.\n\nNote, if the self tests are enabled, they may interfere with the filtering\nset by the command lines.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "43bd1236234cacbc18d1476a9b57e7a306efddf5", "tree": "087fd59a2f98e85fdf017267998a7364a47536c3", "parents": [ "dbd3fbdfeecfad4e71139db05d72560c3583e2a9" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat May 30 04:25:30 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jun 02 01:18:33 2009 +0200" }, "message": "tracing/stat: remove unappropriate safe walk on list\n\nregister_stat_tracer() uses list_for_each_entry_safe\nto check whether a tracer is already present in the list.\nBut we don\u0027t delete anything from the list here, so\nwe don\u0027t need the safe version\n\n[ Impact: cleanup list use is stat tracing ]\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "dbd3fbdfeecfad4e71139db05d72560c3583e2a9", "tree": "51cf7d906bd73d91398dcc1142812f244fb0c9f6", "parents": [ "e16228069083a2f6b94383ac5739aea7a0f38ce4" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Wed May 27 11:42:46 2009 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jun 02 01:18:18 2009 +0200" }, "message": "tracing/stat: do some cleanups\n\n- remove duplicate code in stat_seq_init()\n- update comments to reflect the change from stat list to stat rbtree\n\n[ Impact: clean up ]\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "e16228069083a2f6b94383ac5739aea7a0f38ce4", "tree": "97bf6074fff3ea29daa732f92d29472cf803165a", "parents": [ "b3dd7ba7d862707800c7ac45068f14ade2b65155" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Wed May 27 11:04:48 2009 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jun 02 01:18:03 2009 +0200" }, "message": "tracing/stat: remember to free root node\n\nWhen closing a trace_stat file, we destroy the rbtree constructed during\nfile open, but there is memory leak that the root node is not freed.\n\n[ Impact: fix memory leak when closing a trace_stat file ]\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "b3dd7ba7d862707800c7ac45068f14ade2b65155", "tree": "2b39cf635ea0c8acb52bea38edd6a8db843644d4", "parents": [ "8f184f27300f66f6dcc8296c2dae7a1fbe8429c9" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Wed May 27 11:04:26 2009 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jun 02 01:17:49 2009 +0200" }, "message": "tracing/stat: change dummpy_cmp() to return -1\n\nCurrently the output of trace_stat/workqueues is totally reversed:\n\n # cat /debug/tracing/trace_stat/workqueues\n ...\n 1 17 17 210 37 `-blk_unplug_work+0x0/0x57\n 1 3779 3779 181 11 |-cfq_kick_queue+0x0/0x2f\n 1 3796 3796 kblockd/1:120\n ...\n\nThe correct output should be:\n\n 1 3796 3796 kblockd/1:120\n 1 3779 3779 181 11 |-cfq_kick_queue+0x0/0x2f\n 1 17 17 210 37 `-blk_unplug_work+0x0/0x57\n\nIt\u0027s caused by \"tracing/stat: replace linked list by an rbtree for\nsorting\"\n(53059c9b67a62a3dc8c80204d3da42b9267ea5a0).\n\ndummpy_cmp() should return -1, so rb_node will always be inserted as\nright-most node in the rbtree, thus we sort the output in ascending\norder.\n\n[ Impact: fix the output of trace_stat/workqueues ]\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "8f184f27300f66f6dcc8296c2dae7a1fbe8429c9", "tree": "a21aa4d88a11217bdd9eaaf31b2189d8b6b45b5b", "parents": [ "0d64f8342de26d02451900b1aad94716fe92c4ab" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat May 16 06:24:36 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jun 02 01:17:35 2009 +0200" }, "message": "tracing/stat: replace linked list by an rbtree for sorting\n\nWhen the stat tracing framework prepares the entries from a tracer\nto output them to the user, it starts by computing a linear sort\nthrough a linked list to give the entries ordered by relevance\nto the user.\n\nThis is quite ugly and causes a small latency when we begin to\nread the file.\n\nThis patch changes that by turning the linked list into a red-black\ntree. Athough the whole iteration using the start and next tracer\ncallbacks while opening the file remain the same, it is now much\nmore fast and scalable.\n\nThe rbtree guarantees O(log(n)) insertions whereas a linked\nlist with linear sorting brought us a O(n) despair. Now the\n(visible) latency has disapeared.\n\n[ Impact: kill the latency while starting to read a stat tracer file ]\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "0d64f8342de26d02451900b1aad94716fe92c4ab", "tree": "b74741815a673be584141dcd3691daaeea0fc053", "parents": [ "f3c4ae26e93d354152196b62797ba86ad86dd0cc" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat May 16 05:58:49 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jun 02 01:17:17 2009 +0200" }, "message": "tracing/stat: replace trace_stat_session by stat_session\n\nThe \"trace\" prefix in struct trace_stat_session type is annoying while\nreading the trace_stat.c file. It makes the lines longer, and\nis not that much useful to explain the sense of this type.\n\nJust keep \"struct stat_session\" for this type.\n\n[ Impact: make the code a bit more readable ]\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "f3c4ae26e93d354152196b62797ba86ad86dd0cc", "tree": "62a6ea34e64bffaaa192d05c42409f4ef1d361d5", "parents": [ "b8867164f05791a6b5363bd51c1274e03600886e" ], "author": { "name": "Zhaolei", "email": "zhaolei@cn.fujitsu.com", "time": "Mon Apr 20 15:02:17 2009 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jun 02 01:14:26 2009 +0200" }, "message": "trace_workqueue: remove blank line between each cpu\n\nThe blankline between each cpu\u0027s workqueue stat is not necessary, because\nthe cpu number is enough to part them by eye.\nOld style also caused a blankline below headline, and made code complex\nby using lock, disableirq and get cpu var.\n\nOld style:\n # CPU INSERTED EXECUTED NAME\n # | | | |\n\n 0 8644 8644 events/0\n 0 0 0 cpuset\n ...\n 0 1 1 kdmflush\n\n 1 35365 35365 events/1\n ...\n\nNew style:\n # CPU INSERTED EXECUTED NAME\n # | | | |\n\n 0 8644 8644 events/0\n 0 0 0 cpuset\n ...\n 0 1 1 kdmflush\n 1 35365 35365 events/1\n ...\n\n[ Impact: provide more readable code ]\n\nSigned-off-by: Zhao Lei \u003czhaolei@cn.fujitsu.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "b8867164f05791a6b5363bd51c1274e03600886e", "tree": "781be4716c204703143db86606372b64db6dc835", "parents": [ "1fdfca9c577aac96a559c1ea68f5c9156f17d636" ], "author": { "name": "Zhaolei", "email": "zhaolei@cn.fujitsu.com", "time": "Mon Apr 20 14:59:36 2009 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jun 02 01:13:46 2009 +0200" }, "message": "trace_workqueue: remove cpu_workqueue_stats-\u003efirst_entry\n\ncpu_workqueue_stats-\u003efirst_entry is useless because we can retrieve the\nheader of a cpu workqueue using:\nif (\u0026cpu_workqueue_stats-\u003elist \u003d\u003d workqueue_cpu_stat(cpu)-\u003elist.next)\n\n[ Impact: cleanup ]\n\nSigned-off-by: Zhao Lei \u003czhaolei@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "1fdfca9c577aac96a559c1ea68f5c9156f17d636", "tree": "fbbeeba504037440e42cce056781d56ecebfc4b1", "parents": [ "fb39125fd79a25c5002f3b45cf4c80e3fa6b961b" ], "author": { "name": "Zhaolei", "email": "zhaolei@cn.fujitsu.com", "time": "Mon Apr 20 14:58:26 2009 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jun 02 01:13:05 2009 +0200" }, "message": "trace_workqueue: use list_for_each_entry() instead of list_for_each_entry_safe()\n\nNo need to use list_for_each_entry_safe() in iteration without deleting\nany node, we can use list_for_each_entry() instead.\n\n[ Impact: cleanup ]\n\nSigned-off-by: Zhao Lei \u003czhaolei@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "fb39125fd79a25c5002f3b45cf4c80e3fa6b961b", "tree": "96a9d274896f94306bc4d4972eca2153934f4814", "parents": [ "f2aebaee653a35b01c3665de2cbb1e31456b8ea8" ], "author": { "name": "Zhaolei", "email": "zhaolei@cn.fujitsu.com", "time": "Fri Apr 17 15:15:51 2009 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Jun 02 01:10:40 2009 +0200" }, "message": "ftrace, workqueuetrace: make workqueue tracepoints use TRACE_EVENT macro\n\nv3: zhaolei@cn.fujitsu.com: Change TRACE_EVENT definition to new format\n introduced by Steven Rostedt: consolidate trace and trace_event headers\nv2: kosaki@jp.fujitsu.com: print the function names instead of addr, and zap\n the work addr\nv1: zhaolei@cn.fujitsu.com: Make workqueue tracepoints use TRACE_EVENT macro\n\nTRACE_EVENT is a more generic way to define tracepoints.\nDoing so adds these new capabilities to the tracepoints:\n\n - zero-copy and per-cpu splice() tracing\n - binary tracing without printf overhead\n - structured logging records exposed under /debug/tracing/events\n - trace events embedded in function tracer output and other plugins\n - user-defined, per tracepoint filter expressions\n\nThen, this patch converts DEFINE_TRACE to TRACE_EVENT in workqueue related\ntracepoints.\n\n[ Impact: expand workqueue tracer to events tracing ]\n\nSigned-off-by: Zhao Lei \u003czhaolei@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "3d58f48ba05caed9118bce62b3047f8683438835", "tree": "94c911034f0e14ded73d3e9e6e9f8e22b6cad822", "parents": [ "abfe0af9813153bae8c85d9bac966bafcb8ddab1", "d9244b5d2fbfe9fa540024b410047af13ceec90f" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jun 01 21:06:21 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jun 01 21:06:21 2009 +0200" }, "message": "Merge branch \u0027linus\u0027 into irq/numa\n\nConflicts:\n\tarch/mips/sibyte/bcm1480/irq.c\n\tarch/mips/sibyte/sb1250/irq.c\n\nMerge reason: we gathered a few conflicts plus update to latest upstream fixes.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5b6045a906f48d37591365c5dcdd6d1d146bfd4a", "tree": "33a7b9513c84e442eda0159ee294a02f33589f55", "parents": [ "c2adae0970ca1db8adb92fb56ae3bcabd916e8bd" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Tue May 26 17:28:02 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu May 28 01:21:03 2009 +0200" }, "message": "trace: disable preemption before taking raw spinlocks\n\ns390 code uses smp_processor_id() in __raw_spin_lock() code which\nreveals that a (raw) spinlock is taken without preemption disabled.\nThis can potentially deadlock.\n\nTo fix this explicitly disable and enable preemption.\n\nBUG: using smp_processor_id() in preemptible [00000000] code: cat/2278\ncaller is trace_find_cmdline+0x40/0xfc\nCPU: 0 Not tainted 2.6.30-rc7-dirty #39\nProcess cat (pid: 2278, task: 000000003faedb68, ksp: 000000003b33b988)\n000000003b33b988 000000003b33bae0 0000000000000002 0000000000000000\n 000000003b33bb80 000000003b33baf8 000000003b33baf8 00000000000175d6\n 0000000000000001 000000003b33b988 000000003f9b0000 000000000000000b\n 000000000000000c 000000003b33bb40 000000003b33bae0 0000000000000000\n 0000000000000000 00000000000175d6 000000003b33bae0 000000003b33bb28\nCall Trace:\n([\u003c00000000000174b2\u003e] show_trace+0x112/0x170)\n [\u003c0000000000017582\u003e] show_stack+0x72/0x100\n [\u003c0000000000441538\u003e] dump_stack+0xc8/0xd8\n [\u003c000000000025c350\u003e] debug_smp_processor_id+0x114/0x130\n [\u003c00000000000bf0e4\u003e] trace_find_cmdline+0x40/0xfc\n [\u003c00000000000c35d4\u003e] trace_print_context+0x58/0xac\n [\u003c00000000000bb676\u003e] print_trace_line+0x416/0x470\n [\u003c00000000000bc8fe\u003e] s_show+0x4e/0x428\n [\u003c000000000013834e\u003e] seq_read+0x36a/0x5d4\n [\u003c0000000000112a78\u003e] vfs_read+0xc8/0x174\n [\u003c0000000000112c58\u003e] SyS_read+0x74/0xc4\n [\u003c000000000002c7ae\u003e] sysc_noemu+0x10/0x16\n [\u003c000002000012436c\u003e] 0x2000012436c\n1 lock held by cat/2278:\n #0: (\u0026p-\u003elock){+.+.+.}, at: [\u003c0000000000138056\u003e] seq_read+0x72/0x5d4\n\n[ Impact: fix preempt-unsafe raw spinlock ]\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "ab2b7ebaad16226c9a5e85c5f384d19fa58a7459", "tree": "c7a700d9300dca0855721b3a15db150ae5d86f1b", "parents": [ "d4a76f8a619b5d7dfd5a0f122666fee24bb3dcb9" ], "author": { "name": "Tetsuo Handa", "email": "penguin-kernel@i-love.sakura.ne.jp", "time": "Tue May 26 09:11:03 2009 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 26 12:11:19 2009 -0700" }, "message": "kmod: Release sub_info on cred allocation failure.\n\ncall_usermodehelper_setup() forgot to kfree(sub_info)\nwhen prepare_usermodehelper_creds() failed.\n\nSigned-off-by: Tetsuo Handa \u003cpenguin-kernel@I-love.SAKURA.ne.jp\u003e\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0f4fc29dd68dfab9c6ddd5d087d34a5b6818cb00", "tree": "af3d210c8db9adcf117580c949fb708badcb520b", "parents": [ "62ba180e80f4194a498585ac0e4c07daa8ca08d1" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed May 20 19:21:47 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue May 26 20:31:50 2009 +0200" }, "message": "tracing: add __print_symbolic to trace events\n\nThis patch adds __print_symbolic which is similar to __print_flags but\nworks for an enumeration type instead. That is, there is only a one to one\nmapping between the values and the symbols. When a match is made, then\nit is printed, otherwise the hex value is outputed.\n\n[ Impact: add interface for showing symbol names in events ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "be74b73a57645cc253d881ab0c1014eb64b9cf22", "tree": "83f14ae9a43fe98a1363d30d20d60245e1115382", "parents": [ "0e907c99391362385c8e3af2c43b904dd1fd5d73" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue May 26 20:25:22 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue May 26 20:25:22 2009 +0200" }, "message": "tracing: add __print_flags for events\n\nDevelopers have been asking for the ability in the ftrace event tracer\nto display names of bits in a flags variable.\n\nInstead of printing out c2, it would be easier to read FOO|BAR|GOO,\nassuming that FOO is bit 1, BAR is bit 6 and GOO is bit 7.\n\nSome examples where this would be useful are the state flags in a context\nswitch, kmalloc flags, and even permision flags in accessing files.\n\n[\n v2 changes include:\n\n Frederic Weisbecker\u0027s idea of using a mask instead of bits,\n thus we can output GFP_KERNEL instead of GPF_WAIT|GFP_IO|GFP_FS.\n\n Li Zefan\u0027s idea of allowing the caller of __print_flags to add their\n own delimiter (or no delimiter) where we can get for file permissions\n rwx instead of r|w|x.\n]\n\n[\n v3 changes:\n\n Christoph Hellwig\u0027s idea of using an array instead of va_args.\n]\n\n[ Impact: better displaying of flags in trace output ]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "0e907c99391362385c8e3af2c43b904dd1fd5d73", "tree": "86f1fc73644d4a7db5e1cbc96434aa89d02879cc", "parents": [ "b11c53e12f94a46b50bccc7a1a953d7ca1d54a31" ], "author": { "name": "Zhaolei", "email": "zhaolei@cn.fujitsu.com", "time": "Mon May 25 18:13:59 2009 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue May 26 03:30:31 2009 +0200" }, "message": "ftrace: clean up of using ftrace_event_enable_disable()\n\nAlways use ftrace_event_enable_disable() to enable/disable an event\nso that we can factorize out the event toggling code.\n\n[ Impact: factorize and cleanup event tracing code ]\n\nSigned-off-by: Zhao Lei \u003czhaolei@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLKML-Reference: \u003c4A14FDFE.2080402@cn.fujitsu.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "b11c53e12f94a46b50bccc7a1a953d7ca1d54a31", "tree": "a0d658e31ffd7f05834c6026874cd4120a35dd29", "parents": [ "29fcefba8a2f0fea11e2b721fe174a1832801284" ], "author": { "name": "Zhaolei", "email": "zhaolei@cn.fujitsu.com", "time": "Mon May 25 18:11:59 2009 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue May 26 03:03:21 2009 +0200" }, "message": "ftrace: Add task_comm support for trace_event\n\nIf we enable a trace event alone without any tracer running (such as\nfunction tracer, sched switch tracer, etc...) it can\u0027t output enough\ntask command information.\n\nWe need to use the tracing_{start/stop}_cmdline_record() helpers\nwhich are designed to keep track of cmdlines for any tasks that\nwere scheduled during the tracing.\n\nBefore this patch:\n # echo 1 \u003e debugfs/tracing/events/sched/sched_switch/enable\n # cat debugfs/tracing/trace\n # tracer: nop\n #\n # TASK-PID CPU# TIMESTAMP FUNCTION\n # | | | | |\n \u003c...\u003e-2289 [000] 526276.724790: sched_switch: task bash:2289 [120] \u003d\u003d\u003e sshd:2287 [120]\n \u003c...\u003e-2287 [000] 526276.725231: sched_switch: task sshd:2287 [120] \u003d\u003d\u003e bash:2289 [120]\n \u003c...\u003e-2289 [000] 526276.725452: sched_switch: task bash:2289 [120] \u003d\u003d\u003e sshd:2287 [120]\n \u003c...\u003e-2287 [000] 526276.727181: sched_switch: task sshd:2287 [120] \u003d\u003d\u003e swapper:0 [140]\n \u003cidle\u003e-0 [000] 526277.032734: sched_switch: task swapper:0 [140] \u003d\u003d\u003e events/0:5 [115]\n \u003c...\u003e-5 [000] 526277.032782: sched_switch: task events/0:5 [115] \u003d\u003d\u003e swapper:0 [140]\n ...\n\nAfter this patch:\n # tracer: nop\n #\n # TASK-PID CPU# TIMESTAMP FUNCTION\n # | | | | |\n bash-2269 [000] 527347.989229: sched_switch: task bash:2269 [120] \u003d\u003d\u003e sshd:2267 [120]\n sshd-2267 [000] 527347.990960: sched_switch: task sshd:2267 [120] \u003d\u003d\u003e bash:2269 [120]\n bash-2269 [000] 527347.991143: sched_switch: task bash:2269 [120] \u003d\u003d\u003e sshd:2267 [120]\n sshd-2267 [000] 527347.992959: sched_switch: task sshd:2267 [120] \u003d\u003d\u003e swapper:0 [140]\n \u003cidle\u003e-0 [000] 527348.531989: sched_switch: task swapper:0 [140] \u003d\u003d\u003e events/0:5 [115]\n events/0-5 [000] 527348.532115: sched_switch: task events/0:5 [115] \u003d\u003d\u003e swapper:0 [140]\n ...\n\nChangelog:\nv1-\u003ev2: Update Kconfig to select CONTEXT_SWITCH_TRACER in\n ENABLE_EVENT_TRACING\nv2-\u003ev3: v2 can solve problem that was caused by config EVENT_TRACING\n alone, but when CONFIG_FTRACE is off and CONFIG_TRACING is\n selected by other config, compile fail happened again.\n This version solves it.\n\n[ Impact: fix incomplete output of event tracing ]\n\nSigned-off-by: Zhao Lei \u003czhaolei@cn.fujitsu.com\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c4A14FDFE.2080402@cn.fujitsu.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "4f5359685af6de7dca101393dc606620adbe963f", "tree": "1f9dc3fb9299008daa6a5fb6f03945008ea4a4f9", "parents": [ "5537937696c55530447c20aa27daccb8d0d29b33" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Mon May 18 19:35:34 2009 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Mon May 25 23:53:41 2009 +0200" }, "message": "tracing: add trace_event_read_lock()\n\nI found that there is nothing to protect event_hash in\nftrace_find_event(). Rcu protects the event hashlist\nbut not the event itself while we use it after its extraction\nthrough ftrace_find_event().\n\nThis lack of a proper locking in this spot opens a race\nwindow between any event dereferencing and module removal.\n\nEg:\n\n--Task A--\n\nprint_trace_line(trace) {\n event \u003d find_ftrace_event(trace)\n\n--Task B--\n\ntrace_module_remove_events(mod) {\n list_trace_events_module(ev, mod) {\n unregister_ftrace_event(ev-\u003eevent) {\n hlist_del(ev-\u003eevent-\u003enode)\n list_del(....)\n }\n }\n}\n|--\u003e module removed, the event has been dropped\n\n--Task A--\n\n event-\u003eprint(trace); // Dereferencing freed memory\n\nIf the event retrieved belongs to a module and this module\nis concurrently removed, we may end up dereferencing a data\nfrom a freed module.\n\nRCU could solve this, but it would add latency to the kernel and\nforbid tracers output callbacks to call any sleepable code.\nSo this fix converts \u0027trace_event_mutex\u0027 to a read/write semaphore,\nand adds trace_event_read_lock() to protect ftrace_find_event().\n\n[ Impact: fix possible freed memory dereference in ftrace ]\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c4A114806.7090302@cn.fujitsu.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "93c32483808c5d82c9bd1eef2208854a6d1326db", "tree": "fd8190ca7ce4b210f4e9fff135041f5c02456682", "parents": [ "d5a877e8dd409d8c702986d06485c374b705d340", "32bdfac5462d777f35b00838893c4f87baf23efe" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun May 24 19:38:25 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun May 24 19:38:25 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:\n PM: Do not hold dpm_list_mtx while disabling/enabling nonboot CPUs\n" }, { "commit": "d5a877e8dd409d8c702986d06485c374b705d340", "tree": "ece6d685c074c6823d31b7db99a52134866fd1a7", "parents": [ "657cafa6b0f5296424d6f43f6f6eeb4a3222117e" ], "author": { "name": "James Bottomley", "email": "James.Bottomley@HansenPartnership.com", "time": "Sun May 24 13:03:43 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun May 24 13:38:41 2009 -0700" }, "message": "async: make sure independent async domains can\u0027t accidentally entangle\n\nThe problem occurs when async_synchronize_full_domain() is called when\nthe async_pending list is not empty. This will cause lowest_running()\nto return the cookie of the first entry on the async_pending list, which\nmight be nothing at all to do with the domain being asked for and thus\ncause the domain synchronization to wait for an unrelated domain. This\ncan cause a deadlock if domain synchronization is used from one domain\nto wait for another.\n\nFix by running over the async_pending list to see if any pending items\nactually belong to our domain (and return their cookies if they do).\n\nSigned-off-by: James Bottomley \u003cJames.Bottomley@HansenPartnership.com\u003e\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "32bdfac5462d777f35b00838893c4f87baf23efe", "tree": "92e4ef3af7b68007e8004eaca978865a29e543b0", "parents": [ "59a3759d0fe8d969888c741bb33f4946e4d3750d" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun May 24 21:15:07 2009 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun May 24 21:15:07 2009 +0200" }, "message": "PM: Do not hold dpm_list_mtx while disabling/enabling nonboot CPUs\n\nWe shouldn\u0027t hold dpm_list_mtx while executing\n[disable|enable]_nonboot_cpus(), because theoretically this may lead\nto a deadlock as shown by the following example (provided by Johannes\nBerg):\n\nCPU 3 CPU 2 CPU 1\n suspend/hibernate\n something:\n rtnl_lock() device_pm_lock()\n -\u003e mutex_lock(\u0026dpm_list_mtx)\n\n mutex_lock(\u0026dpm_list_mtx)\n\nlinkwatch_work\n -\u003e rtnl_lock()\n disable_nonboot_cpus()\n -\u003e flush CPU 3 workqueue\n\nFortunately, device drivers are supposed to stop any activities that\nmight lead to the registration of new device objects way before\ndisable_nonboot_cpus() is called, so it shouldn\u0027t be necessary to\nhold dpm_list_mtx over the entire late part of device suspend and\nearly part of device resume.\n\nThus, during the late suspend and the early resume of devices acquire\ndpm_list_mtx only when dpm_list is going to be traversed and release\nit right after that.\n\nThis patch is reported to fix the regressions tracked as\nhttp://bugzilla.kernel.org/show_bug.cgi?id\u003d13245.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Alan Stern \u003cstern@rowland.harvard.edu\u003e\nReported-by: Miles Lane \u003cmiles.lane@gmail.com\u003e\nTested-by: Ming Lei \u003ctom.leiming@gmail.com\u003e\n" }, { "commit": "948cd52906baf1f92aeea2f9b5c515db1b2e592a", "tree": "a03482aebb7f8ed0b1706db8d6cd105f79ea53cc", "parents": [ "4c6f18fc81565967da20f2d4a3922cdba33f8e2b" ], "author": { "name": "Paul Mundt", "email": "lethal@linux-sh.org", "time": "Fri May 22 10:40:09 2009 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat May 23 14:55:24 2009 +0200" }, "message": "sparseirq: Allow early irq_desc allocation\n\nPresently non-legacy IRQs have their irq_desc allocated with\nkzalloc_node(). This assumes that all callers of irq_to_desc_node_alloc()\nwill be sufficiently late in the boot process that kmalloc is available.\n\nWhile porting sparseirq support to sh this blew up immediately, as at the\ntime that we register the CPU\u0027s interrupt vector map only bootmem is\navailable. Check slab_is_available() to work out which path to use.\n\n[ Impact: fix SH early boot crash with sparseirq enabled ]\n\nSigned-off-by: Paul Mundt \u003clethal@linux-sh.org\u003e\nAcked-by: Yinghai Lu \u003cyinghai@kernel.org\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nLKML-Reference: \u003c20090522014008.GA2806@linux-sh.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9bd7de51ee8537094656149eaf45338cadb7d7d4", "tree": "a691987319dfcdb07de2bce619746f88d26882c4", "parents": [ "e4b636366c00738b9609cda307014d71b1225b7f", "6a44587ee716ac911082cbdec766e5b3f051c071" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 22 20:28:35 2009 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 22 20:28:35 2009 +0200" }, "message": "Merge branch \u0027master\u0027 into for-2.6.31\n\nConflicts:\n\tdrivers/ide/ide-io.c\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "e4b636366c00738b9609cda307014d71b1225b7f", "tree": "760b67b3624eda62e943e48ce93635c30a5b47bf", "parents": [ "b9ed7252d219c1c663944bf03846eabb515dbe75", "279e677faa775ad16e75c32e1bf4a37f8158bc61" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 22 20:25:34 2009 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 22 20:25:34 2009 +0200" }, "message": "Merge branch \u0027master\u0027 into for-2.6.31\n\nConflicts:\n\tdrivers/block/hd.c\n\tdrivers/block/mg_disk.c\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "2c9e703c618106f5383226fbb1f526cb11034f8a", "tree": "87d7548001ea82f655fede0640466fc16aabcdf7", "parents": [ "6470c077cae12227318f40f3e6d756caadcce4b0", "5805977e63a36ad56594a623f3bd2bebcb7db233" ], "author": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Fri May 22 18:40:59 2009 +1000" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Fri May 22 18:40:59 2009 +1000" }, "message": "Merge branch \u0027master\u0027 into next\n\nConflicts:\n\tfs/exec.c\n\nRemoved IMA changes (the IMA checks are now performed via may_open()).\n\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "5f8371cec93b94a24a55ba1de642ce6eade6d62c", "tree": "61b6d2acb10226b3c0f2d31bda3a49288e540eba", "parents": [ "8e9bb19ef97d6594e735bee64b6d72103e350854", "d8586ba6e1415150e1bab89f0a05447bb6f2d6d5" ], "author": { "name": "Paul Mundt", "email": "lethal@linux-sh.org", "time": "Fri May 22 13:29:37 2009 +0900" }, "committer": { "name": "Paul Mundt", "email": "lethal@linux-sh.org", "time": "Fri May 22 13:29:37 2009 +0900" }, "message": "Merge branches \u0027sh/stable-updates\u0027 and \u0027sh/sparseirq\u0027\n" }, { "commit": "5537937696c55530447c20aa27daccb8d0d29b33", "tree": "e3207e5a491822238ed299a5e7d96dfc72b1c43a", "parents": [ "fd51d251e4cdb21f68e9dbc4336514d64a105a79" ], "author": { "name": "Ming Lei", "email": "tom.leiming@gmail.com", "time": "Mon May 18 23:04:46 2009 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed May 20 19:23:11 2009 +0200" }, "message": "ftrace: fix check for return value of register_module_notifier in event_trace_init\n\nregister_module_notifier() returns zero in the success case.\nSo fix the inverted fail case check in trace events modules\nhandler.\n\n[ Impact: fix spurious warning on ftrace initialization]\n\nReported-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Ming Lei \u003ctom.leiming@gmail.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "2070887fdeacd9c13f3e805e3f0086c9f22a4d93", "tree": "f1695bd701f7a2558e11052bfe6ff42d6dc561df", "parents": [ "1c840c14906d4ddf66c1f4f5daea059aad951c82" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue May 19 23:04:59 2009 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed May 20 10:34:32 2009 +0200" }, "message": "futex: fix restart in wait_requeue_pi\n\nIf the waiter has been requeued to the outer PI futex and is\ninterrupted by a signal and the thread handles the signal then\nERESTART_RESTARTBLOCK is changed to EINTR and the restart block is\ndiscarded. That way we return an unexcpected EINTR to user space\ninstead of ending up in futex_lock_pi_restart.\n\nBut we do not need to restart the syscall because we know that the\ncondition has changed since we have been requeued. If we would simply\nrestart the syscall then we would drop out via the comparison of the\nuser space value with EWOULDBLOCK.\n\nThe user space side needs to handle EWOULDBLOCK anyway as the\nenqueueing on the inner futex can race with a requeue/wake. So we can\nsimply return EWOULDBLOCK to user space which also signals that we did\nnot take the outer futex and let user space handle it in the same way\nit has to handle the requeue/wake race.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "1c840c14906d4ddf66c1f4f5daea059aad951c82", "tree": "3c71d3d67c590df598098f5cdb79151359ff2ce4", "parents": [ "c8b15a706d921baed3195407e4f55270112bb3c6" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed May 20 09:22:40 2009 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed May 20 10:28:45 2009 +0200" }, "message": "futex: fix restart for early wakeup in futex_wait_requeue_pi()\n\nThe futex_wait_requeue_pi op should restart unconditionally like\nfutex_lock_pi. The user of that function e.g. pthread_cond_wait can\nnot be interrupted so we do not care about the SA_RESTART flag of the\nsignal. Clean up the FIXMEs.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "c8b15a706d921baed3195407e4f55270112bb3c6", "tree": "514a45eb575cd093043fe1471ff579ffe439db3f", "parents": [ "521c180874dae86f675d23c4eade4dba8b1f2cc8" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed May 20 09:18:50 2009 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed May 20 10:28:45 2009 +0200" }, "message": "futex: cleanup error exit\n\nReuse the put_key_ref(key2) call in the exit path.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "521c180874dae86f675d23c4eade4dba8b1f2cc8", "tree": "7509303da3a9a1b40a26f6811f321c89cd31737b", "parents": [ "f1a11e0576c7a73d759d05d776692b2b2d37172b", "64d1304a64477629cb16b75491a77bafe6f86963" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed May 20 09:02:28 2009 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed May 20 09:02:28 2009 +0200" }, "message": "Merge branch \u0027core/urgent\u0027 into core/futexes\n\nMerge reason: this branch was on an pre -rc1 base, merge it up to -rc6+\n to get the latest upstream fixes.\n\nConflicts:\n\tkernel/futex.c\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "64d1304a64477629cb16b75491a77bafe6f86963", "tree": "f9bf95141429174d3e4596d3c4f5b167b6c0e745", "parents": [ "279e677faa775ad16e75c32e1bf4a37f8158bc61" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon May 18 21:20:10 2009 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue May 19 23:36:52 2009 +0200" }, "message": "futex: setup writeable mapping for futex ops which modify user space data\n\nThe futex code installs a read only mapping via get_user_pages_fast()\neven if the futex op function has to modify user space data. The\neventual fault was fixed up by futex_handle_fault() which walked the\nVMA with mmap_sem held.\n\nAfter the cleanup patches which removed the mmap_sem dependency of the\nfutex code commit 4dc5b7a36a49eff97050894cf1b3a9a02523717 (futex:\nclean up fault logic) removed the private VMA walk logic from the\nfutex code. This change results in a stale RO mapping which is not\nfixed up.\n\nInstead of reintroducing the previous fault logic we set up the\nmapping in get_user_pages_fast() read/write for all operations which\nmodify user space data. Also handle private futexes in the same way\nand make the current unconditional access_ok(VERIFY_WRITE) depend on\nthe futex op.\n\nReported-by: Andreas Schwab \u003cschwab@linux-m68k.org\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCC: stable@kernel.org\n\n" }, { "commit": "fd51d251e4cdb21f68e9dbc4336514d64a105a79", "tree": "478fb26aea6b7e79532f33cc5949b4fece18cdfc", "parents": [ "143c145e3a475065a4be661468d0df1bd0b25f74" ], "author": { "name": "Stefan Raspl", "email": "raspl@linux.vnet.ibm.com", "time": "Tue May 19 09:59:08 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue May 19 10:29:21 2009 +0200" }, "message": "blktrace: remove debugfs entries on bad path\n\ndebugfs directory entries for devices are not removed on some\nof the failure pathes in do_blk_trace_setup().\nOne way to reproduce is to start blktrace on multiple devices\nwith insufficient Vmalloc space: Devices will fail with\na message like this:\n\n\tBLKTRACESETUP(2) /dev/sdu failed: 5/Input/output error\n\nIf so, the respective entries in debugfs\n(e.g. /sys/kernel/debug/block/sdu) will remain and subsequent\nattempts to start blktrace on the respective devices will not\nsucceed due to existing directories.\n\n[ Impact: fix /debug/tracing file cleanup corner case ]\n\nSigned-off-by: Stefan Raspl \u003cstefan.raspl@linux.vnet.ibm.com\u003e\nAcked-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: schwidefsky@de.ibm.com\nCc: heiko.carstens@de.ibm.com\nLKML-Reference: \u003c4A1266CC.5040801@linux.vnet.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "4200efd9acda4accf24640f1e77d24fdcdb524df", "tree": "ffeda24ae6a9c1b8ca94615e261434d925d2ed2c", "parents": [ "2d02494f5a90f2e4b3c4c6acc85ec94674cdc431" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue May 19 09:22:19 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue May 19 09:22:19 2009 +0200" }, "message": "sched: properly define the sched_group::cpumask and sched_domain::span fields\n\nProperly document the variable-size structure tricks we are doing\nwrt. struct sched_group and sched_domain, and use the field[0] GCC\nextension instead of defining a vla array.\n\nDont use unions for this, as pointed out by Linus.\n\n[ Impact: cleanup, un-confuse Sparse and LLVM ]\n\nReported-by: Jeff Garzik \u003cjeff@garzik.org\u003e\nAcked-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nLKML-Reference: \u003calpine.LFD.2.01.0905180850110.3301@localhost.localdomain\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ee3af6ee77f61cac3c8f770c65736bf5ed03a697", "tree": "a4803f26484914d55086c15b7a0234a2d38ce7b2", "parents": [ "13bba6fda98fe03a955665c9d4bf63c8fd9c19c0", "92d23f703c608fcb2c8edd74a3fd0f4031e18606", "d80c19df5fcceb8c741e96f09f275c2da719efef" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon May 18 10:11:06 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon May 18 10:11:06 2009 -0700" }, "message": "Merge branches \u0027sched-fixes-for-linus-2\u0027 and \u0027core-fixes-for-linus-2\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-fixes-for-linus-2\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched: Fix fallback sched_clock()\u0027s offset when using jiffies\n\n* \u0027core-fixes-for-linus-2\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n lockdep: increase MAX_LOCKDEP_ENTRIES and MAX_LOCKDEP_CHAINS\n" }, { "commit": "0130b2d7010fe8e046b7a6c44911a1d3d0d16c96", "tree": "e4fb22c311a2ca8da64528538646d1e2579f4447", "parents": [ "80193195f87ebca6d7417516d6edeb3969631c15", "88fc86c283d9c3854e67e4155808027bc2519eb6" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon May 18 09:15:41 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon May 18 09:15:41 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 tracing: Append prompt in /debug/tracing/README file\n x86/function-graph: fix constraint for recording old return value\n" }, { "commit": "24ed0c4bfc7d2d7507bb9d50f7f3bbdcd85d76dd", "tree": "954ff0ff7f4249ec7a2e9e9233bb4d8e0670f9ce", "parents": [ "1079cac0f4eb7d968395378b1625979d4c818dd6" ], "author": { "name": "Ming Lei", "email": "tom.leiming@gmail.com", "time": "Sun May 17 15:31:38 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon May 18 10:24:13 2009 +0200" }, "message": "tracing: fix check for return value of register_module_notifier\n\nreturn zero should be correct, so fix it.\n\n[ Impact: eliminate incorrect syslog message ]\n\nSigned-off-by: Ming Lei \u003ctom.leiming@gmail.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: rostedt@goodmis.org\nLKML-Reference: \u003c1242545498-7285-1-git-send-email-tom.leiming@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "1079cac0f4eb7d968395378b1625979d4c818dd6", "tree": "d261058d95d27fe7250511d5fad69db30dc17731", "parents": [ "5872144f64b34a5942f6b4acedc90b02de72c58b", "1406de8e11eb043681297adf86d6892ff8efc27a" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon May 18 10:15:09 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon May 18 10:15:35 2009 +0200" }, "message": "Merge commit \u0027v2.6.30-rc6\u0027 into tracing/core\n\nMerge reason: we were on an -rc4 base, sync up to -rc6\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "86460103c412f9e11aeb7950cce64b9e51539d4d", "tree": "9d6230418012a22e0b1d4d09b024e24377002a6c", "parents": [ "b83674c0da6558e357c6b482ccf299eeea77d8ef", "4484079d517c2b6521621be0b1ea246ccc55c7d7" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun May 17 11:46:22 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun May 17 11:46:22 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:\n PM: check sysdev_suspend(PMSG_FREEZE) return value\n" }, { "commit": "0f6f49a8cd0163fdb1723ed29f01fc65177108dc", "tree": "086981f9ef51d57a34fbc5fde8095652877cf739", "parents": [ "b41a080fa9f157d223c782ec3571cf46e34e91d6" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat May 16 13:41:28 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat May 16 13:41:28 2009 -0700" }, "message": "Fix caller information for warn_slowpath_null\n\nIan Campbell noticed that since \"Eliminate thousands of warnings with\ngcc 3.2 build\" (commit 57adc4d2dbf968fdbe516359688094eef4d46581) all\nWARN_ON()\u0027s currently appear to come from warn_slowpath_null(), eg:\n\n WARNING: at kernel/softirq.c:143 warn_slowpath_null+0x1c/0x20()\n\nbecause now that warn_slowpath_null() is in the call path, the\n__builtin_return_address(0) returns that, rather than the place that\ncaused the warning.\n\nFix this by splitting up the warn_slowpath_null/fmt cases differently,\nusing a common helper function, and getting the return address in the\nright place. This also happens to avoid the unnecessary stack usage for\nthe non-stdargs case, and just generally cleans things up.\n\nMake the function name printout use %pS while at it.\n\nCc: Ian Campbell \u003cian.campbell@citrix.com\u003e\nCc: Jesper Nilsson \u003cjesper.nilsson@axis.com\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: Andi Kleen \u003cak@linux.intel.com\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4484079d517c2b6521621be0b1ea246ccc55c7d7", "tree": "60d0ae568555f1bd7329be411b28e55b12dc64c3", "parents": [ "8c21f34126222239450717b78dda0c4962d9ebfa" ], "author": { "name": "Bjorn Helgaas", "email": "bjorn.helgaas@hp.com", "time": "Fri May 15 23:30:50 2009 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Fri May 15 23:30:50 2009 +0200" }, "message": "PM: check sysdev_suspend(PMSG_FREEZE) return value\n\nCheck the return value of sysdev_suspend(). I think this was a typo.\nWithout this change, the following \"if\" check is always false.\nI also changed the error message so it\u0027s distinguishable from the\nsimilar message a few lines above.\n\nSigned-off-by: Bjorn Helgaas \u003cbjorn.helgaas@hp.com\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "88fc86c283d9c3854e67e4155808027bc2519eb6", "tree": "2652b1a9d0299e1cc4d71573b2ac5e18ecae01c8", "parents": [ "aa512a27e9e8ed32f31b15eec67ab1ceca33839b" ], "author": { "name": "GeunSik Lim", "email": "leemgs1@gmail.com", "time": "Thu May 14 17:23:38 2009 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri May 15 19:43:22 2009 +0200" }, "message": "tracing: Append prompt in /debug/tracing/README file\n\nappend prompt in /debug/tracing/README file.\n\nThis is trivial issue. Fix typo Mini Howto file(README) for ftrace.\n\n[ Impact: cleanup ]\n\nSigned-off-by: GeunSik Lim \u003cgeunsik.lim@samsung.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: williams \u003cwilliams@redhat.com\u003e\nLKML-Reference: \u003c1242289418.31161.45.camel@centos51\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ade385e4d14f4158b3b27acd992a98bca4cd7f23", "tree": "9f20430f5690901936348b0c955327c4a37d3485", "parents": [ "c6538499814d8112c5d4d08570a7cf0758e5f8f5", "d34a792da969a00b0f653c512414411760f55a20" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 15 08:06:45 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 15 08:06:45 2009 -0700" }, "message": "Merge branch \u0027for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb\n\n* \u0027for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:\n kgdb: gdb documentation fix\n kgdb,i386: use address that SP register points to in the exception frame\n sysrq, intel_fb: fix sysrq g collision\n" }, { "commit": "2d02494f5a90f2e4b3c4c6acc85ec94674cdc431", "tree": "8032438de5b55282976583b111d02d9379ff3966", "parents": [ "dce48a84adf1806676319f6f480e30a6daa012f9" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Sat May 02 20:08:52 2009 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri May 15 15:32:45 2009 +0200" }, "message": "sched, timers: cleanup avenrun users\n\navenrun is an rough estimate so we don\u0027t have to worry about\nconsistency of the three avenrun values. Remove the xtime lock\ndependency and provide a function to scale the values. Cleanup the\nusers.\n\n[ Impact: cleanup ]\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\n" }, { "commit": "dce48a84adf1806676319f6f480e30a6daa012f9", "tree": "79151f5d31d9c3dcdc723ab8877cb943b944890e", "parents": [ "2ff799d3cff1ecb274049378b28120ee5c1c5e5f" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Sat Apr 11 10:43:41 2009 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri May 15 15:32:45 2009 +0200" }, "message": "sched, timers: move calc_load() to scheduler\n\nDimitri Sivanich noticed that xtime_lock is held write locked across\ncalc_load() which iterates over all online CPUs. That can cause long\nlatencies for xtime_lock readers on large SMP systems. \n\nThe load average calculation is an rough estimate anyway so there is\nno real need to protect the readers vs. the update. It\u0027s not a problem\nwhen the avenrun array is updated while a reader copies the values.\n\nInstead of iterating over all online CPUs let the scheduler_tick code\nupdate the number of active tasks shortly before the avenrun update\nhappens. The avenrun update itself is handled by the CPU which calls\ndo_timer().\n\n[ Impact: reduce xtime_lock write locked section ]\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\n" }, { "commit": "f1a11e0576c7a73d759d05d776692b2b2d37172b", "tree": "3cb845c4cfd48cdbe0755d057c2698657fb965b5", "parents": [ "b30505c81a9d4adea8b70ecff512b0216929b797" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue May 05 19:21:40 2009 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri May 15 15:24:18 2009 +0200" }, "message": "futex: remove the wait queue\n\nThe waitqueue which is used in struct futex_q is a leftover from the\nfutexfd implementation. There is no need to use a waitqueue at all, as\nthe waiting task is the only user of it. The waitqueue just adds\nadditional locking and a loop in the wake up path which both can be\navoided.\n\nWe have already a task reference in struct futex_q which is used for\nPI futexes. Use it for normal futexes as well and just wake up the\ntask directly.\n\nThe logic of signalling the futex wakeup via setting q-\u003elock_ptr to\nNULL is kept with the difference that we set it NULL before doing the\nwakeup. This opens an exit race window vs. a non futex wake up of the\nto be woken up task, which we prevent with get_task_struct /\nput_task_struct on the waiter.\n\n[ Impact: simplification ]\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "364b5b7b1d793a7f98be55b6b154716dcae78dfc", "tree": "2c8d2571bde15bf7c376bd222b3cc916bd52c13d", "parents": [ "45d447406a19cbfd42720f066f156f4eb9d68801" ], "author": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Wed May 13 21:56:59 2009 -0500" }, "committer": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Fri May 15 07:56:24 2009 -0500" }, "message": "sysrq, intel_fb: fix sysrq g collision\n\nCommit 79e539453b34e35f39299a899d263b0a1f1670bd introduced a\nregression where you cannot use sysrq \u0027g\u0027 to enter kgdb. The solution\nis to move the intel fb sysrq over to V for video instead of G for\ngraphics. The SMP VOYAGER code to register for the sysrq-v is not\nanywhere to be found in the mainline kernel, so the comments in the\ncode were cleaned up as well.\n\nThis patch also cleans up the sysrq definitions for kgdb to make it\ngeneric for the kernel debugger, such that the sysrq \u0027g\u0027 can be used\nin the future to enter a gdbstub or another kernel debugger.\n\nSigned-off-by: Jason Wessel \u003cjason.wessel@windriver.com\u003e\nAcked-by: Jesse Barnes \u003cjbarnes@virtuousgeek.org\u003e\nAcked-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n" }, { "commit": "cd17cbfda004fe5f406c01b318c6378d9895896f", "tree": "821e279bc6d9d52bc13fa6c3905ebbd44a2e4860", "parents": [ "05dc7b613481c695bb4fc476c6fbb46364b63f62" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 15 11:32:24 2009 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri May 15 11:32:24 2009 +0200" }, "message": "Revert \"mm: add /proc controls for pdflush threads\"\n\nThis reverts commit fafd688e4c0c34da0f3de909881117d374e4c7af.\n\nWork is progressing to switch away from pdflush as the process backing\nfor flushing out dirty data. So it seems pointless to add more knobs\nto control pdflush threads. The original author of the patch did not\nhave any specific use cases for adding the knobs, so we can easily\nrevert this before 2.6.30 to avoid having to maintain this API\nforever.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "5872144f64b34a5942f6b4acedc90b02de72c58b", "tree": "65ab10576155c05d7ac319197896a31721f61499", "parents": [ "8cd995b6deedf98b7694ed32a786ee7f793d1eec" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri May 15 11:07:56 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu May 14 23:55:12 2009 -0400" }, "message": "tracing/filters: fix off-by-one bug\n\nWe should leave the last slot for the ending \u0027\\0\u0027.\n\n[ Impact: fix possible crash when the length of an operand is 128 ]\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A0CDC8C.30602@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "8cd995b6deedf98b7694ed32a786ee7f793d1eec", "tree": "6c423c242027eacf07018ae9e0488ef035337c68", "parents": [ "1ec7c4849c214fc78b023230264399836ea3b245" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri May 15 11:07:27 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu May 14 23:55:10 2009 -0400" }, "message": "tracing/filters: add missing unlock in a failure path\n\n[ Impact: fix deadlock in a rare case we fail to allocate memory ]\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A0CDC6F.7070200@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" } ], "next": "1ec7c4849c214fc78b023230264399836ea3b245" }