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| author |   Nick Piggin <npiggin@kernel.dk> | 2011-01-07 17:49:33 +1100 |
|---|---|---|
| committer | Nick Piggin <npiggin@kernel.dk> | 2011-01-07 17:50:21 +1100 |
| commit | da5029563a0a026c64821b09e8e7b4fd81d3fe1b (patch) | |
| tree | 5d5618e0cb382390073377b1be7d0aa76879ac54 /fs/ocfs2/dcache.c | |
| parent | fs: dcache scale dentry refcount (diff) | |
| download | linux-dev-da5029563a0a026c64821b09e8e7b4fd81d3fe1b.tar.xz linux-dev-da5029563a0a026c64821b09e8e7b4fd81d3fe1b.zip | |
fs: dcache scale d_unhashed
Protect d_unhashed(dentry) condition with d_lock. This means keeping
DCACHE_UNHASHED bit in synch with hash manipulations.
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'fs/ocfs2/dcache.c')
| -rw-r--r-- | fs/ocfs2/dcache.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/ocfs2/dcache.c b/fs/ocfs2/dcache.c index 895532ac4d98..35e5f5a9ef59 100644 --- a/fs/ocfs2/dcache.c +++ b/fs/ocfs2/dcache.c @@ -174,13 +174,16 @@ struct dentry *ocfs2_find_local_alias(struct inode *inode, list_for_each(p, &inode->i_dentry) { dentry = list_entry(p, struct dentry, d_alias); + spin_lock(&dentry->d_lock); if (ocfs2_match_dentry(dentry, parent_blkno, skip_unhashed)) { mlog(0, "dentry found: %.*s\n", dentry->d_name.len, dentry->d_name.name); - dget_locked(dentry); + dget_locked_dlock(dentry); + spin_unlock(&dentry->d_lock); break; } + spin_unlock(&dentry->d_lock); dentry = NULL; } |