)]}'
{
  "log": [
    {
      "commit": "a71fca58b7f4abca551ae2256ac08dd9123a03f9",
      "tree": "55bef0550ff2558a117d768426474e15b081ff4b",
      "parents": [
        "49e291266d0920264471d9d64268fb030e33a99a"
      ],
      "author": {
        "name": "Paul E. McKenney",
        "email": "paulmck@linux.vnet.ibm.com",
        "time": "Fri Sep 18 10:28:19 2009 -0700"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sat Sep 19 08:53:22 2009 +0200"
      },
      "message": "rcu: Fix whitespace inconsistencies\n\nFix a number of whitespace ^Ierrors in the include/linux/rcu*\nand the kernel/rcu* files.\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: laijs@cn.fujitsu.com\nCc: dipankar@in.ibm.com\nCc: akpm@linux-foundation.org\nCc: mathieu.desnoyers@polymtl.ca\nCc: josh@joshtriplett.org\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nCc: Valdis.Kletnieks@vt.edu\nLKML-Reference: \u003c20090918172819.GA24405@linux.vnet.ibm.com\u003e\n[ did more checkpatch fixlets ]\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "49e291266d0920264471d9d64268fb030e33a99a",
      "tree": "8770717427ee877e6b7b3dae6b120f35be645d70",
      "parents": [
        "e7d8842ed34a7fe19d1ed90f84c211fb056ac523"
      ],
      "author": {
        "name": "Paul E. McKenney",
        "email": "paulmck@linux.vnet.ibm.com",
        "time": "Fri Sep 18 09:50:19 2009 -0700"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sat Sep 19 08:53:21 2009 +0200"
      },
      "message": "rcu: Fix thinko, actually initialize full tree\n\nCommit de078d8 (\"rcu: Need to update rnp-\u003egpnum if preemptable RCU\nis to be reliable\") repeatedly and incorrectly initializes the root\nrcu_node structure\u0027s -\u003egpnum field rather than initializing the\n-\u003egpnum field of each node in the tree.  Fix this.  Also add an\nadditional consistency check to catch this in the future.\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: laijs@cn.fujitsu.com\nCc: dipankar@in.ibm.com\nCc: akpm@linux-foundation.org\nCc: mathieu.desnoyers@polymtl.ca\nCc: josh@joshtriplett.org\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nCc: Valdis.Kletnieks@vt.edu\nLKML-Reference: \u003c125329262011-git-send-email-\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "e7d8842ed34a7fe19d1ed90f84c211fb056ac523",
      "tree": "d49d5b8ff8829e525b8f80d60a18ef1f37e09529",
      "parents": [
        "28ecd58020409be8eb176c716f957fc3386fa2fa"
      ],
      "author": {
        "name": "Paul E. McKenney",
        "email": "paulmck@linux.vnet.ibm.com",
        "time": "Fri Sep 18 09:50:18 2009 -0700"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sat Sep 19 08:53:21 2009 +0200"
      },
      "message": "rcu: Apply results of code inspection of kernel/rcutree_plugin.h\n\no Drop the calls to cpu_quiet() from the online/offline code.\n  These are unnecessary, since force_quiescent_state() will\n  clean up, and removing them simplifies the code a bit.\n\no Add a warning to check that we don\u0027t enqueue the same blocked\n  task twice onto the -\u003eblocked_tasks[] lists.\n\no Rework the phase computation in rcu_preempt_note_context_switch()\n  to be more readable, as suggested by Josh Triplett.\n\no Disable irqs to close a race between the scheduling clock\n  interrupt and rcu_preempt_note_context_switch() WRT the\n  -\u003ercu_read_unlock_special field.\n\no Add comments to rnp-\u003elock acquisition and release within\n  rcu_read_unlock_special() noting that irqs are already\n  disabled.\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: laijs@cn.fujitsu.com\nCc: dipankar@in.ibm.com\nCc: akpm@linux-foundation.org\nCc: mathieu.desnoyers@polymtl.ca\nCc: josh@joshtriplett.org\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nCc: Valdis.Kletnieks@vt.edu\nLKML-Reference: \u003c12532926201851-git-send-email-\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "28ecd58020409be8eb176c716f957fc3386fa2fa",
      "tree": "820dd14bbfc5b69384c3b88611c6173c06ba5e08",
      "parents": [
        "16e3081191837a6a04733de5cd5d1d1b303140d4"
      ],
      "author": {
        "name": "Paul E. McKenney",
        "email": "paulmck@linux.vnet.ibm.com",
        "time": "Fri Sep 18 09:50:17 2009 -0700"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sat Sep 19 08:53:19 2009 +0200"
      },
      "message": "rcu: Add WARN_ON_ONCE() consistency checks covering state transitions\n\no Verify that qsmask bits stay clear through GP\n  initialization.\n\no Verify that cpu_quiet_msk_finish() is never invoked unless\n  there actually is an RCU grace period in progress.\n\no Verify that all internal-node rcu_node structures have empty\n  blocked_tasks[] lists.\n\no Verify that child rcu_node structure\u0027s bits remain clear after\n  acquiring parent\u0027s lock.\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: laijs@cn.fujitsu.com\nCc: dipankar@in.ibm.com\nCc: akpm@linux-foundation.org\nCc: mathieu.desnoyers@polymtl.ca\nCc: josh@joshtriplett.org\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nCc: Valdis.Kletnieks@vt.edu\nLKML-Reference: \u003c12532926191947-git-send-email-\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "c3422bea5f09b0e85704f51f2b01271630b8940b",
      "tree": "fc4a18241b0f7f5d71211f6787428197769cb9f5",
      "parents": [
        "b0e165c035b13e1074fa0b555318bd9cb7102558"
      ],
      "author": {
        "name": "Paul E. McKenney",
        "email": "paulmck@linux.vnet.ibm.com",
        "time": "Sun Sep 13 09:15:10 2009 -0700"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Sep 18 00:06:33 2009 +0200"
      },
      "message": "rcu: Simplify rcu_read_unlock_special() quiescent-state accounting\n\nThe earlier approach required two scheduling-clock ticks to note an\npreemptable-RCU quiescent state in the situation in which the\nscheduling-clock interrupt is unlucky enough to always interrupt an\nRCU read-side critical section.\n\nWith this change, the quiescent state is instead noted by the\noutermost rcu_read_unlock() immediately following the first\nscheduling-clock tick, or, alternatively, by the first subsequent\ncontext switch.  Therefore, this change also speeds up grace\nperiods.\n\nSuggested-by: Josh Triplett \u003cjosh@joshtriplett.org\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: laijs@cn.fujitsu.com\nCc: dipankar@in.ibm.com\nCc: akpm@linux-foundation.org\nCc: mathieu.desnoyers@polymtl.ca\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nCc: Valdis.Kletnieks@vt.edu\nLKML-Reference: \u003c12528585111945-git-send-email-\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "b0e165c035b13e1074fa0b555318bd9cb7102558",
      "tree": "c65de438df4e8ad3e9e562663b377d61cc87af57",
      "parents": [
        "bbe3eae8bb039b5ffd64a6e3d1a0deaa1f3cbae9"
      ],
      "author": {
        "name": "Paul E. McKenney",
        "email": "paulmck@linux.vnet.ibm.com",
        "time": "Sun Sep 13 09:15:09 2009 -0700"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Fri Sep 18 00:06:13 2009 +0200"
      },
      "message": "rcu: Add debug checks to TREE_PREEMPT_RCU for premature grace periods\n\nCheck to make sure that there are no blocked tasks for the previous\ngrace period while initializing for the next grace period, verify\nthat rcu_preempt_qs() is given the correct CPU number and is never\ncalled for an offline CPU.\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: laijs@cn.fujitsu.com\nCc: dipankar@in.ibm.com\nCc: akpm@linux-foundation.org\nCc: mathieu.desnoyers@polymtl.ca\nCc: josh@joshtriplett.org\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nCc: Valdis.Kletnieks@vt.edu\nLKML-Reference: \u003c12528585111986-git-send-email-\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "868489660dabc0c28087cca3dbc1adbbc398c6fe",
      "tree": "cf991ec94ce29bccfef27213107748810c51a1ca",
      "parents": [
        "dd5d19bafd90d33043a4a14b2e2d98612caa293c"
      ],
      "author": {
        "name": "Paul E. McKenney",
        "email": "paulmck@linux.vnet.ibm.com",
        "time": "Thu Aug 27 15:00:12 2009 -0700"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sat Aug 29 15:34:40 2009 +0200"
      },
      "message": "rcu: Changes from reviews: avoid casts, fix/add warnings, improve comments\n\nChanges suggested by review comments from Josh Triplett and\nMathieu Desnoyers.\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nAcked-by: Josh Triplett \u003cjosh@joshtriplett.org\u003e\nAcked-by: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: laijs@cn.fujitsu.com\nCc: dipankar@in.ibm.com\nCc: akpm@linux-foundation.org\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nLKML-Reference: \u003c20090827220012.GA30525@linux.vnet.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "dd5d19bafd90d33043a4a14b2e2d98612caa293c",
      "tree": "c21d547124d277f00332bdb01c75f2f4f321de8c",
      "parents": [
        "06e799764eb7c2e4640888d438c3524d756613e1"
      ],
      "author": {
        "name": "Paul E. McKenney",
        "email": "paulmck@linux.vnet.ibm.com",
        "time": "Thu Aug 27 14:58:16 2009 -0700"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sat Aug 29 15:34:39 2009 +0200"
      },
      "message": "rcu: Create rcutree plugins to handle hotplug CPU for multi-level trees\n\nWhen offlining CPUs from a multi-level tree, there is the\npossibility of offlining the last CPU from a given node when\nthere are preempted RCU read-side critical sections that\nstarted life on one of the CPUs on that node.\n\nIn this case, the corresponding tasks will be enqueued via the\ntask_struct\u0027s rcu_node_entry list_head onto one of the\nrcu_node\u0027s blocked_tasks[] lists.  These tasks need to be moved\nsomewhere else so that they will prevent the current grace\nperiod from ending. That somewhere is the root rcu_node.\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: laijs@cn.fujitsu.com\nCc: dipankar@in.ibm.com\nCc: akpm@linux-foundation.org\nCc: mathieu.desnoyers@polymtl.ca\nCc: josht@linux.vnet.ibm.com\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nLKML-Reference: \u003c20090827215816.GA30472@linux.vnet.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "33f76148ced0e0618062e302d2a9614efdbd4a06",
      "tree": "82a5c2719301bcb9f20b0597b77e91529f9ec2df",
      "parents": [
        "7c614d6461399acca5c0ba444f5db49cb332fc08"
      ],
      "author": {
        "name": "Paul E. McKenney",
        "email": "paulmck@linux.vnet.ibm.com",
        "time": "Mon Aug 24 09:42:01 2009 -0700"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Mon Aug 24 20:37:04 2009 +0200"
      },
      "message": "rcu: Add CPU-offline processing for single-node configurations\n\nAdd preemptable-RCU plugin to handle the CPU-offline\nprocessing.\n\nAn additional plugin is forthcoming to handle multinode RCU\ntrees, but this current plugin works for configurations up to\n32 CPUs (64 CPUs for 64-bit kernels).\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: laijs@cn.fujitsu.com\nCc: dipankar@in.ibm.com\nCc: akpm@linux-foundation.org\nCc: mathieu.desnoyers@polymtl.ca\nCc: josht@linux.vnet.ibm.com\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nLKML-Reference: \u003c12511321213336-git-send-email-\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "f41d911f8c49a5d65c86504c19e8204bb605c4fd",
      "tree": "59bcd3048652ef290b3e19d2904409afd5c90eb3",
      "parents": [
        "a157229cabd6dd8cfa82525fc9bf730c94cc9ac2"
      ],
      "author": {
        "name": "Paul E. McKenney",
        "email": "paulmck@linux.vnet.ibm.com",
        "time": "Sat Aug 22 13:56:52 2009 -0700"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@elte.hu",
        "time": "Sun Aug 23 10:32:40 2009 +0200"
      },
      "message": "rcu: Merge preemptable-RCU functionality into hierarchical RCU\n\nCreate a kernel/rcutree_plugin.h file that contains definitions\nfor preemptable RCU (or, under the #else branch of the #ifdef,\nempty definitions for the classic non-preemptable semantics).\nThese definitions fit into plugins defined in kernel/rcutree.c\nfor this purpose.\n\nThis variant of preemptable RCU uses a new algorithm whose\nread-side expense is roughly that of classic hierarchical RCU\nunder CONFIG_PREEMPT. This new algorithm\u0027s update-side expense\nis similar to that of classic hierarchical RCU, and, in absence\nof read-side preemption or blocking, is exactly that of classic\nhierarchical RCU.  Perhaps more important, this new algorithm\nhas a much simpler implementation, saving well over 1,000 lines\nof code compared to mainline\u0027s implementation of preemptable\nRCU, which will hopefully be retired in favor of this new\nalgorithm.\n\nThe simplifications are obtained by maintaining per-task\nnesting state for running tasks, and using a simple\nlock-protected algorithm to handle accounting when tasks block\nwithin RCU read-side critical sections, making use of lessons\nlearned while creating numerous user-level RCU implementations\nover the past 18 months.\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: laijs@cn.fujitsu.com\nCc: dipankar@in.ibm.com\nCc: akpm@linux-foundation.org\nCc: mathieu.desnoyers@polymtl.ca\nCc: josht@linux.vnet.ibm.com\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nLKML-Reference: \u003c12509746134003-git-send-email-\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    }
  ]
}