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authorIngo Molnar <mingo@kernel.org>2015-10-20 08:16:46 (GMT)
committerIngo Molnar <mingo@kernel.org>2015-10-20 08:16:46 (GMT)
commita1a2ab2ff7040bdc9a31bfe7173913971f7d723b (patch)
treea5b448aaedafafca6974710b7d64074ed964fe24 /fs/namei.c
parent00eb4bab69db349c3bdc7e0b0f7e9070dafea58c (diff)
parent7379047d5585187d1288486d4627873170d0005a (diff)
downloadlinux-a1a2ab2ff7040bdc9a31bfe7173913971f7d723b.tar.xz
Merge tag 'v4.3-rc6' into locking/core, to pick up fixes before applying new changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/namei.c')
-rw-r--r--fs/namei.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/namei.c b/fs/namei.c
index 726d211..33e9495 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1558,8 +1558,6 @@ static int lookup_fast(struct nameidata *nd,
negative = d_is_negative(dentry);
if (read_seqcount_retry(&dentry->d_seq, seq))
return -ECHILD;
- if (negative)
- return -ENOENT;
/*
* This sequence count validates that the parent had no
@@ -1580,6 +1578,12 @@ static int lookup_fast(struct nameidata *nd,
goto unlazy;
}
}
+ /*
+ * Note: do negative dentry check after revalidation in
+ * case that drops it.
+ */
+ if (negative)
+ return -ENOENT;
path->mnt = mnt;
path->dentry = dentry;
if (likely(__follow_mount_rcu(nd, path, inode, seqp)))