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| author | David Rientjes <rientjes@google.com> | 2015-09-08 15:00:39 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-08 15:35:28 -0700 |
| commit | 54e9e29132d7caefcad470281cae06ac34a982c8 (patch) | |
| tree | 2c0fc45f174f03f4b38920a463546570325329a7 | |
| parent | 6e0fc46dc2152d3e2d25a5d5b640ae3586c247c6 (diff) | |
| download | op-kernel-dev-54e9e29132d7caefcad470281cae06ac34a982c8.zip op-kernel-dev-54e9e29132d7caefcad470281cae06ac34a982c8.tar.gz | |
mm, oom: pass an oom order of -1 when triggered by sysrq
The force_kill member of struct oom_control isn't needed if an order of -1
is used instead. This is the same as order == -1 in struct
compact_control which requires full memory compaction.
This patch introduces no functional change.
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/tty/sysrq.c | 3 | ||||
| -rw-r--r-- | include/linux/oom.h | 1 | ||||
| -rw-r--r-- | mm/memcontrol.c | 1 | ||||
| -rw-r--r-- | mm/oom_kill.c | 5 | ||||
| -rw-r--r-- | mm/page_alloc.c | 1 |
5 files changed, 3 insertions, 8 deletions
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c index ed3e258..95b330a 100644 --- a/drivers/tty/sysrq.c +++ b/drivers/tty/sysrq.c @@ -358,8 +358,7 @@ static void moom_callback(struct work_struct *ignored) .zonelist = node_zonelist(first_memory_node, gfp_mask), .nodemask = NULL, .gfp_mask = gfp_mask, - .order = 0, - .force_kill = true, + .order = -1, }; mutex_lock(&oom_lock); diff --git a/include/linux/oom.h b/include/linux/oom.h index cb29085..8fb67b9 100644 --- a/include/linux/oom.h +++ b/include/linux/oom.h @@ -17,7 +17,6 @@ struct oom_control { nodemask_t *nodemask; gfp_t gfp_mask; int order; - bool force_kill; }; /* diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 573d903..9871f13 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1550,7 +1550,6 @@ static void mem_cgroup_out_of_memory(struct mem_cgroup *memcg, gfp_t gfp_mask, .nodemask = NULL, .gfp_mask = gfp_mask, .order = order, - .force_kill = false, }; struct mem_cgroup *iter; unsigned long chosen_points = 0; diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 80a7cbd..77adc8e 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -265,7 +265,7 @@ enum oom_scan_t oom_scan_process_thread(struct oom_control *oc, * Don't allow any other task to have access to the reserves. */ if (test_tsk_thread_flag(task, TIF_MEMDIE)) { - if (!oc->force_kill) + if (oc->order != -1) return OOM_SCAN_ABORT; } if (!task->mm) @@ -278,7 +278,7 @@ enum oom_scan_t oom_scan_process_thread(struct oom_control *oc, if (oom_task_origin(task)) return OOM_SCAN_SELECT; - if (task_will_free_mem(task) && !oc->force_kill) + if (task_will_free_mem(task) && oc->order != -1) return OOM_SCAN_ABORT; return OOM_SCAN_OK; @@ -718,7 +718,6 @@ void pagefault_out_of_memory(void) .nodemask = NULL, .gfp_mask = 0, .order = 0, - .force_kill = false, }; if (mem_cgroup_oom_synchronize(true)) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 9653614..5f9394d 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2698,7 +2698,6 @@ __alloc_pages_may_oom(gfp_t gfp_mask, unsigned int order, .nodemask = ac->nodemask, .gfp_mask = gfp_mask, .order = order, - .force_kill = false, }; struct page *page; |
