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authorOleg Nesterov <oleg@tv-sign.ru>2008-07-25 01:47:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-25 10:53:39 -0700
commitc5f1cc8c1828486a61ab3e575da6e2c62b34d399 (patch)
tree9cc88e7d1dae063482e1e9117ded747578cbd7ad /fs
parent8cd9c249128a59e8e833d454a784b0cbd338d468 (diff)
downloadlinux-2.6.34-ux500-c5f1cc8c1828486a61ab3e575da6e2c62b34d399.tar.gz
coredump: turn core_state->nr_threads into atomic_t
Turn core_state->nr_threads into atomic_t and kill now unneeded down_write(&mm->mmap_sem) in exit_mm(). Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/exec.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/exec.c b/fs/exec.c
index c74bb34eeef..15d493fe8aa 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1591,7 +1591,7 @@ static inline int zap_threads(struct task_struct *tsk, struct mm_struct *mm,
}
rcu_read_unlock();
done:
- core_state->nr_threads = nr;
+ atomic_set(&core_state->nr_threads, nr);
return nr;
}