)]}'
{
  "log": [
    {
      "commit": "c7af77b584b02d3e321b00203a618a9c93782121",
      "tree": "e7a8d5995e34065aa1bd610cb92684c5e5856119",
      "parents": [
        "051a1d1afa47206e23ae03f781c6795ce870e3d5"
      ],
      "author": {
        "name": "Livio Soares",
        "email": "livio@eecg.toronto.edu",
        "time": "Tue Dec 18 15:21:13 2007 +0100"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Tue Dec 18 15:21:13 2007 +0100"
      },
      "message": "sched: mark rwsem functions as __sched for wchan/profiling\n\nThis following commit\n\nhttp://git.kernel.org/?p\u003dlinux/kernel/git/torvalds/linux-2.6.git;a\u003dcommitdiff;h\u003dfdf8cb0909b531f9ae8f9b9d7e4eb35ba3505f07\n\nun-inlined a low-level rwsem function, but did not mark it as __sched.\nThe result is that it now shows up as thread wchan (which also affects\n/proc/profile stats).  The following simple patch fixes this by properly\nmarking rwsem_down_failed_common() as a __sched function.\n\nAlso in this patch, which is up for discussion, marks down_read() and\ndown_write() proper as __sched.  For profiling, it is pretty much\nuseless to know that a semaphore is beig help - it is necessary to know\n_which_ one.  By going up another frame on the stack, the information\nbecomes much more useful.\n\nIn summary, the below change to lib/rwsem.c should be applied; the\nchanges to kernel/rwsem.c could be applied if other kernel hackers agree\nwith my proposal that down_read()/down_write() in the profile is not\nenough.\n\n[ akpm@linux-foundation.org: build fix ]\n\nSigned-off-by: Livio Soares \u003clivio@eecg.toronto.edu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "4fe87745a6722d42ff27a60768c77958fa1fc498",
      "tree": "adb116303fda951e0f7fc997db5de683e1bd8527",
      "parents": [
        "c46261de0d98372112d8edf16f74ce418a268d46"
      ],
      "author": {
        "name": "Peter Zijlstra",
        "email": "a.p.zijlstra@chello.nl",
        "time": "Thu Jul 19 01:48:58 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Thu Jul 19 10:04:49 2007 -0700"
      },
      "message": "lockstat: hook into spinlock_t, rwlock_t, rwsem and mutex\n\nCall the new lockstat tracking functions from the various lock primitives.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Jason Baron \u003cjbaron@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": "428e6ce023c5890cfecc8ad10335da3f28dbf893",
      "tree": "17c746035cf727bc5494b9116ae6034724aaede3",
      "parents": [
        "644fd4f5de9ca147daeb6dc5f844b44ec3d58b47"
      ],
      "author": {
        "name": "Pavel Emelianov",
        "email": "xemul@sw.ru",
        "time": "Tue May 08 00:29:10 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Tue May 08 11:15:09 2007 -0700"
      },
      "message": "Lockdep treats down_write_trylock like regular down_write\n\nThis causes constructions like\n\ndown_write(\u0026mm1-\u003emmap_sem);\nif (down_write_trylock(\u0026mm2-\u003emmap_sem)) {\n       ...\n       up_write(\u0026mm2-\u003emmap_sem);\n}\nup_write(\u0026mm1-\u003emmap_sem);\n\ngenerate a lockdep warning about circular locking dependence.\n\nCall rwsem_acquire() with trylock set to 1.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Arjan van de Ven \u003carjan@infradead.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "4ea2176dfa714882e88180b474e4cbcd888b70af",
      "tree": "7ff3810f6b8750c226234887bb3063d91e1d71c3",
      "parents": [
        "a8f24a3978c5f82419e1c90dc90460731204f46f"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Jul 03 00:24:53 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Mon Jul 03 15:27:04 2006 -0700"
      },
      "message": "[PATCH] lockdep: prove rwsem locking correctness\n\nUse the lock validator framework to prove rwsem locking correctness.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "c4e05116a2c4d8187127dbf77ab790aa57a47388",
      "tree": "58f07aed47ee4d30e9588d5a820c245faa163b09",
      "parents": [
        "8b3db9c542e18b71d4820da4dd9401ee030feacb"
      ],
      "author": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Jul 03 00:24:29 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Mon Jul 03 15:27:01 2006 -0700"
      },
      "message": "[PATCH] lockdep: clean up rwsems\n\nClean up rwsems.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    }
  ]
}