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| author | Vegard Nossum <vegard.nossum@oracle.com> | 2017-02-27 14:30:13 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-27 18:43:48 -0800 |
| commit | 388f79345502232d335467e8fa6f8e55a18844e1 (patch) | |
| tree | 8537520e3fe14e4eab550bc386efe266b27207f4 /fs/proc/base.c | |
| parent | 3fce371bfac2be0396ffc1e763600e6c6b1bb52a (diff) | |
| download | op-kernel-dev-388f79345502232d335467e8fa6f8e55a18844e1.zip op-kernel-dev-388f79345502232d335467e8fa6f8e55a18844e1.tar.gz | |
mm: use mmget_not_zero() helper
We already have the helper, we can convert the rest of the kernel
mechanically using:
git grep -l 'atomic_inc_not_zero.*mm_users' | xargs sed -i 's/atomic_inc_not_zero(&\(.*\)->mm_users)/mmget_not_zero\(\1\)/'
This is needed for a later patch that hooks into the helper, but might
be a worthwhile cleanup on its own.
Link: http://lkml.kernel.org/r/20161218123229.22952-3-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 'fs/proc/base.c')
| -rw-r--r-- | fs/proc/base.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c index 5d51a18..1e1e182 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -813,7 +813,7 @@ static ssize_t mem_rw(struct file *file, char __user *buf, return -ENOMEM; copied = 0; - if (!atomic_inc_not_zero(&mm->mm_users)) + if (!mmget_not_zero(mm)) goto free; /* Maybe we should limit FOLL_FORCE to actual ptrace users? */ @@ -921,7 +921,7 @@ static ssize_t environ_read(struct file *file, char __user *buf, return -ENOMEM; ret = 0; - if (!atomic_inc_not_zero(&mm->mm_users)) + if (!mmget_not_zero(mm)) goto free; down_read(&mm->mmap_sem); |
