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authorNick Piggin <npiggin@kernel.dk>2011-01-07 09:50:06 +0300
committerNick Piggin <npiggin@kernel.dk>2011-01-07 09:50:31 +0300
commit873feea09ebc980cbd3631b767356ce1eee65ec1 (patch)
tree59a8fce9b138086abee7cf845f62ff70a390cf81 /fs/ocfs2/dcache.c
parentceb5bdc2d246f6d81cf61ed70f325308a11821d2 (diff)
downloadlinux-873feea09ebc980cbd3631b767356ce1eee65ec1.tar.xz
fs: dcache per-inode inode alias locking
dcache_inode_lock can be replaced with per-inode locking. Use existing inode->i_lock for this. This is slightly non-trivial because we sometimes need to find the inode from the dentry, which requires d_inode to be stabilised (either with refcount or d_lock). Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'fs/ocfs2/dcache.c')
-rw-r--r--fs/ocfs2/dcache.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ocfs2/dcache.c b/fs/ocfs2/dcache.c
index 0310b16a7238..6d80ecc7834f 100644
--- a/fs/ocfs2/dcache.c
+++ b/fs/ocfs2/dcache.c
@@ -175,7 +175,7 @@ struct dentry *ocfs2_find_local_alias(struct inode *inode,
struct list_head *p;
struct dentry *dentry = NULL;
- spin_lock(&dcache_inode_lock);
+ spin_lock(&inode->i_lock);
list_for_each(p, &inode->i_dentry) {
dentry = list_entry(p, struct dentry, d_alias);
@@ -193,7 +193,7 @@ struct dentry *ocfs2_find_local_alias(struct inode *inode,
dentry = NULL;
}
- spin_unlock(&dcache_inode_lock);
+ spin_unlock(&inode->i_lock);
return dentry;
}