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authorVegard Nossum <vegard.nossum@oracle.com>2017-02-28 01:30:10 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-28 05:43:48 +0300
commit3fce371bfac2be0396ffc1e763600e6c6b1bb52a (patch)
treeda45267ba334ada341aa13d600848299564751ce /arch/frv/mm
parentf1f1007644ffc8051a4c11427d58b1967ae7b75a (diff)
downloadlinux-3fce371bfac2be0396ffc1e763600e6c6b1bb52a.tar.xz
mm: add new mmget() helper
Apart from adding the helper function itself, the rest of the kernel is converted mechanically using: git grep -l 'atomic_inc.*mm_users' | xargs sed -i 's/atomic_inc(&\(.*\)->mm_users);/mmget\(\1\);/' git grep -l 'atomic_inc.*mm_users' | xargs sed -i 's/atomic_inc(&\(.*\)\.mm_users);/mmget\(\&\1\);/' This is needed for a later patch that hooks into the helper, but might be a worthwhile cleanup on its own. (Michal Hocko provided most of the kerneldoc comment.) Link: http://lkml.kernel.org/r/20161218123229.22952-2-vegard.nossum@oracle.com Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/frv/mm')
-rw-r--r--arch/frv/mm/mmu-context.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/frv/mm/mmu-context.c b/arch/frv/mm/mmu-context.c
index 81757d55a5b5..3473bde77f56 100644
--- a/arch/frv/mm/mmu-context.c
+++ b/arch/frv/mm/mmu-context.c
@@ -188,7 +188,7 @@ int cxn_pin_by_pid(pid_t pid)
task_lock(tsk);
if (tsk->mm) {
mm = tsk->mm;
- atomic_inc(&mm->mm_users);
+ mmget(mm);
ret = 0;
}
task_unlock(tsk);