diff options
| author | Liam Mark <lmark@codeaurora.org> | 2013-02-07 14:31:36 -0800 |
|---|---|---|
| committer | Jeevan Shriram <jshriram@codeaurora.org> | 2016-04-13 11:09:29 -0700 |
| commit | 21f86651a66abefcfce33f4611c2de7863a8642b (patch) | |
| tree | b79f37d019d368bdbd61922de7d00add87cfbaad /kernel/fork.c | |
| parent | d40b7c124fec2b1c0163a531e778b9974346e37b (diff) | |
android/lowmemorykiller: Ignore tasks with freed mm
A killed task can stay in the task list long after its
memory has been returned to the system, therefore
ignore any tasks whose mm struct has been freed.
Change-Id: I76394b203b4ab2312437c839976f0ecb7b6dde4e
CRs-fixed: 450383
Signed-off-by: Liam Mark <lmark@codeaurora.org>
Diffstat (limited to '')
| -rw-r--r-- | kernel/fork.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 859b949d106f..c9eb86b646ab 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -694,8 +694,9 @@ EXPORT_SYMBOL_GPL(__mmdrop); /* * Decrement the use count and release all resources for an mm. */ -void mmput(struct mm_struct *mm) +int mmput(struct mm_struct *mm) { + int mm_freed = 0; might_sleep(); if (atomic_dec_and_test(&mm->mm_users)) { @@ -713,7 +714,9 @@ void mmput(struct mm_struct *mm) if (mm->binfmt) module_put(mm->binfmt->module); mmdrop(mm); + mm_freed = 1; } + return mm_freed; } EXPORT_SYMBOL_GPL(mmput); |