From 54e9e29132d7caefcad470281cae06ac34a982c8 Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Tue, 8 Sep 2015 15:00:39 -0700 Subject: 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 Cc: Sergey Senozhatsky Cc: Michal Hocko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memcontrol.c | 1 - mm/oom_kill.c | 5 ++--- mm/page_alloc.c | 1 - 3 files changed, 2 insertions(+), 5 deletions(-) (limited to 'mm') diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 573d90347aa2..9871f13fc35b 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 80a7cbd89d66..77adc8e876aa 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 96536144185c..5f9394df19bf 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; -- cgit v1.2.3