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| author | Tristan Ye <tristan.ye@oracle.com> | 2010-11-15 21:39:09 +0800 |
|---|---|---|
| committer | Joel Becker <joel.becker@oracle.com> | 2010-11-18 14:10:56 -0800 |
| commit | 1989a80a60d2f620bad99196d6c1801c2afd7c71 (patch) | |
| tree | 896ce5206a1a767a38a74669a7237853e791c4f3 /fs/ocfs2 | |
| parent | 1cf257f511918ba5b2eabd64d9acd40f1d7866ef (diff) | |
| download | lwn-1989a80a60d2f620bad99196d6c1801c2afd7c71.tar.gz lwn-1989a80a60d2f620bad99196d6c1801c2afd7c71.zip | |
Ocfs2: Stop tracking a negative dentry after dentry_iput().
I suddenly hit the problem during 2.6.37-rc1 regression test, which was
introduced by commit '5e98d492406818e6a94c0ba54c61f59d40cefa4a'(Track
negative entries v3), following scenario reproduces the issue easily:
Node A Node B
================ ============
$touch testfile
$ls testfile
$rm -rf testfile
$touch testfile
$ls testfile
ls: cannot access testfile: No such file or directory
This patch stops tracking the dentry which was negativated by a inode deletion,
so as to force the revaliation in next lookup, in case we'll touch the inode
again in the same node.
It didn't hurt the performance of multiple lookup for none-existed files anyway,
while regresses a bit in the first try after a file deletion.
Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Diffstat (limited to 'fs/ocfs2')
| -rw-r--r-- | fs/ocfs2/dcache.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/ocfs2/dcache.c b/fs/ocfs2/dcache.c index edaded48e7e9..895532ac4d98 100644 --- a/fs/ocfs2/dcache.c +++ b/fs/ocfs2/dcache.c @@ -476,7 +476,6 @@ static void ocfs2_dentry_iput(struct dentry *dentry, struct inode *inode) out: iput(inode); - ocfs2_dentry_attach_gen(dentry); } /* |