The patch titled
oom: do not take callback_mutex
has been removed from the -mm tree. Its filename was
oom-do-not-take-callback_mutex.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: oom: do not take callback_mutex
From: David Rientjes <rientjes@xxxxxxxxxx>
Since no task descriptor's 'cpuset' field is dereferenced in the execution of
the OOM killer anymore, it is no longer necessary to take callback_mutex.
[akpm@xxxxxxxxxxxxxxxxxxxx: restore cpuset_lock for other patches]
Cc: Andrea Arcangeli <andrea@xxxxxxx>
Acked-by: Christoph Lameter <clameter@xxxxxxx>
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/oom_kill.c | 3 ---
1 file changed, 3 deletions(-)
diff -puN mm/oom_kill.c~oom-do-not-take-callback_mutex mm/oom_kill.c
--- a/mm/oom_kill.c~oom-do-not-take-callback_mutex
+++ a/mm/oom_kill.c
@@ -463,7 +463,6 @@ void out_of_memory(struct zonelist *zone
* NUMA) that may require different handling.
*/
constraint = constrained_alloc(zonelist, gfp_mask);
- cpuset_lock();
read_lock(&tasklist_lock);
switch (constraint) {
@@ -495,7 +494,6 @@ retry:
/* Found nothing?!?! Either we hang forever, or we panic. */
if (!p) {
read_unlock(&tasklist_lock);
- cpuset_unlock();
panic("Out of memory and no killable processes...\n");
}
@@ -508,7 +506,6 @@ retry:
out:
read_unlock(&tasklist_lock);
- cpuset_unlock();
/*
* Give "p" a good chance of killing itself before we
_
Patches currently in -mm which might be from rientjes@xxxxxxxxxx are
origin.patch
fix-cpusets-update_cpumask.patch
fix-cpusets-update_cpumask-checkpatch-fixes.patch
memory-controller-add-documentation.patch
memory-controller-resource-counters-v7.patch
memory-controller-resource-counters-v7-fix.patch
memory-controller-containers-setup-v7.patch
memory-controller-accounting-setup-v7.patch
memory-controller-memory-accounting-v7.patch
memory-controller-task-migration-v7.patch
memory-controller-add-per-container-lru-and-reclaim-v7.patch
memory-controller-add-per-container-lru-and-reclaim-v7-fix.patch
memory-controller-improve-user-interface.patch
memory-controller-oom-handling-v7.patch
memory-controller-oom-handling-v7-vs-oom-killer-stuff.patch
memory-controller-add-switch-to-control-what-type-of-pages-to-limit-v7.patch
memory-controller-add-switch-to-control-what-type-of-pages-to-limit-v7-fix-2.patch
memory-controller-make-page_referenced-container-aware-v7.patch
memory-controller-make-charging-gfp-mask-aware.patch
memcontrol-move-mm_cgroup-to-header-file.patch
memcontrol-move-oom-task-exclusion-to-tasklist.patch
memcontrol-move-oom-task-exclusion-to-tasklist-fix.patch
oom-add-sysctl-to-enable-task-memory-dump.patch
bugfix-for-memory-cgroup-controller-charge-refcnt-race-fix.patch
bugfix-for-memory-cgroup-controller-fix-error-handling-path-in-mem_charge_cgroup.patch
bugfix-for-memory-controller-add-helper-function-for-assigning-cgroup-to-page.patch
bugfix-for-memory-cgroup-controller-avoid-pagelru-page-in-mem_cgroup_isolate_pages.patch
bugfix-for-memory-cgroup-controller-migration-under-memory-controller-fix.patch
-
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