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authorVegard Nossum <vegard.nossum@oracle.com>2017-02-28 01:30:13 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-28 05:43:48 +0300
commit388f79345502232d335467e8fa6f8e55a18844e1 (patch)
tree8537520e3fe14e4eab550bc386efe266b27207f4 /fs/proc/task_mmu.c
parent3fce371bfac2be0396ffc1e763600e6c6b1bb52a (diff)
downloadlinux-388f79345502232d335467e8fa6f8e55a18844e1.tar.xz
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/task_mmu.c')
-rw-r--r--fs/proc/task_mmu.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 8f96a49178d0..ee3efb229ef6 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -167,7 +167,7 @@ static void *m_start(struct seq_file *m, loff_t *ppos)
return ERR_PTR(-ESRCH);
mm = priv->mm;
- if (!mm || !atomic_inc_not_zero(&mm->mm_users))
+ if (!mm || !mmget_not_zero(mm))
return NULL;
down_read(&mm->mmap_sem);
@@ -1352,7 +1352,7 @@ static ssize_t pagemap_read(struct file *file, char __user *buf,
unsigned long end_vaddr;
int ret = 0, copied = 0;
- if (!mm || !atomic_inc_not_zero(&mm->mm_users))
+ if (!mm || !mmget_not_zero(mm))
goto out;
ret = -EINVAL;