| Date | Fri, 14 Nov 2014 02:38:25 +0100 | From | Oleg Nesterov <> | Subject | [PATCH 5/5] exit: proc: don't try to flush /proc/tgid/task/tgid |
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proc_flush_task_mnt() always tries to flush task/pid, but this is pointless if we reap the leader. d_invalidate() is recursive, and if nothing else the next d_hash_and_lookup(tgid) should fail anyway.
Signed-off-by: Oleg Nesterov <oleg@redhat.com> --- fs/proc/base.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/fs/proc/base.c b/fs/proc/base.c index 772efa4..e7b04a3 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -2618,6 +2618,9 @@ static void proc_flush_task_mnt(struct vfsmount *mnt, pid_t pid, pid_t tgid) dput(dentry); } + if (pid == tgid) + return; + name.name = buf; name.len = snprintf(buf, sizeof(buf), "%d", tgid); leader = d_hash_and_lookup(mnt->mnt_root, &name); -- 1.5.5.1
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