The patch titled
Subject: fs/exec.c: replace opencoded set_mask_bits()
has been added to the -mm tree. Its filename is
coredump-replace-opencoded-set_mask_bits.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/coredump-replace-opencoded-set_mask_bits.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/coredump-replace-opencoded-set_mask_bits.patch
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------------------------------------------------------
From: Vineet Gupta <vineet.gupta1@xxxxxxxxxxxx>
Subject: fs/exec.c: replace opencoded set_mask_bits()
Link: http://lkml.kernel.org/r/1548275584-18096-2-git-send-email-vgupta@xxxxxxxxxxxx
Link: http://lkml.kernel.org/g/20150807115710.GA16897@xxxxxxxxxx
Signed-off-by: Vineet Gupta <vgupta@xxxxxxxxxxxx>
Reviewed-by: Anthony Yznaga <anthony.yznaga@xxxxxxxxxx>
Acked-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
Cc: Miklos Szeredi <mszeredi@xxxxxxxxxx>
Cc: Theodore Ts'o <tytso@xxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/exec.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
--- a/fs/exec.c~coredump-replace-opencoded-set_mask_bits
+++ a/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,
_
Patches currently in -mm which might be from vineet.gupta1@xxxxxxxxxxxx are
coredump-replace-opencoded-set_mask_bits.patch
fs-inode_set_flags-replace-opencoded-set_mask_bits.patch
bitopsh-set_mask_bits-to-return-old-value.patch
