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Subject[PATCH 1/3] coredump: Replace opencoded set_mask_bits()
Date
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Link: http://lkml.kernel.org/g/20150807115710.GA16897@redhat.com
Acked-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
fs/exec.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/fs/exec.c b/fs/exec.c
index fb72d36f7823..df7f05362283 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1944,15 +1944,10 @@ EXPORT_SYMBOL(set_binfmt);
*/
void set_dumpable(struct mm_struct *mm, int value)
{
- unsigned long old, new;
-
if (WARN_ON((unsigned)value > SUID_DUMP_ROOT))
return;

- do {
- old = READ_ONCE(mm->flags);
- new = (old & ~MMF_DUMPABLE_MASK) | value;
- } while (cmpxchg(&mm->flags, old, new) != old);
+ set_mask_bits(&mm->flags, MMF_DUMPABLE_MASK, value);
}

SYSCALL_DEFINE3(execve,
--
2.7.4
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