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| author | Nick Piggin <npiggin@kernel.dk> | 2011-01-07 17:49:32 +1100 |
|---|---|---|
| committer | Nick Piggin <npiggin@kernel.dk> | 2011-01-07 17:50:21 +1100 |
| commit | b7ab39f631f505edc2bbdb86620d5493f995c9da (patch) | |
| tree | 62be97ebc7fc69ceb601f23312d335ebb8038ee7 /fs/ceph/inode.c | |
| parent | 2304450783dfde7b0b94ae234edd0dbffa865073 (diff) | |
| download | linux-b7ab39f631f505edc2bbdb86620d5493f995c9da.tar.gz linux-b7ab39f631f505edc2bbdb86620d5493f995c9da.tar.bz2 linux-b7ab39f631f505edc2bbdb86620d5493f995c9da.zip | |
fs: dcache scale dentry refcount
Make d_count non-atomic and protect it with d_lock. This allows us to ensure a
0 refcount dentry remains 0 without dcache_lock. It is also fairly natural when
we start protecting many other dentry members with d_lock.
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'fs/ceph/inode.c')
| -rw-r--r-- | fs/ceph/inode.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index bf1286588f26..bb68c799074d 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -879,8 +879,8 @@ static struct dentry *splice_dentry(struct dentry *dn, struct inode *in, } else if (realdn) { dout("dn %p (%d) spliced with %p (%d) " "inode %p ino %llx.%llx\n", - dn, atomic_read(&dn->d_count), - realdn, atomic_read(&realdn->d_count), + dn, dn->d_count, + realdn, realdn->d_count, realdn->d_inode, ceph_vinop(realdn->d_inode)); dput(dn); dn = realdn; |