summaryrefslogtreecommitdiff
path: root/kernel/fork.c
diff options
context:
space:
mode:
authorMichal Hocko <mhocko@suse.com>2016-05-26 15:16:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-26 15:35:44 -0700
commit7ef949d77f95f0d129f0d404b336459a34a00101 (patch)
tree87279cbf52945c657504d17fa7fac2fcbf5414af /kernel/fork.c
parent1ebab2db065e99eed9ab2304d3b7ad25c9568612 (diff)
downloadlinux-sh-7ef949d77f95f0d129f0d404b336459a34a00101.tar.gz
mm: oom_reaper: remove some bloat
mmput_async is currently used only from the oom_reaper which is defined only for CONFIG_MMU. We can save work_struct in mm_struct for !CONFIG_MMU. [akpm@linux-foundation.org: fix typo, per Minchan] Link: http://lkml.kernel.org/r/20160520061658.GB19172@dhcp22.suse.cz Reported-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Michal Hocko <mhocko@suse.com> Acked-by: Minchan Kim <minchan@kernel.org> Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/fork.c')
-rw-r--r--kernel/fork.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index 47887bba944f..5c2c355aa97f 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -736,6 +736,7 @@ void mmput(struct mm_struct *mm)
}
EXPORT_SYMBOL_GPL(mmput);
+#ifdef CONFIG_MMU
static void mmput_async_fn(struct work_struct *work)
{
struct mm_struct *mm = container_of(work, struct mm_struct, async_put_work);
@@ -749,6 +750,7 @@ void mmput_async(struct mm_struct *mm)
schedule_work(&mm->async_put_work);
}
}
+#endif
/**
* set_mm_exe_file - change a reference to the mm's executable file