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-rw-r--r--fs/9p/vfs_inode.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 34bf71b56542..47dfd5d29a6b 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -271,9 +271,11 @@ static struct dentry *v9fs_dentry_from_dir_inode(struct inode *inode)
struct dentry *dentry;
spin_lock(&dcache_lock);
+ spin_lock(&dcache_inode_lock);
/* Directory should have only one entry. */
BUG_ON(S_ISDIR(inode->i_mode) && !list_is_singular(&inode->i_dentry));
dentry = list_entry(inode->i_dentry.next, struct dentry, d_alias);
+ spin_unlock(&dcache_inode_lock);
spin_unlock(&dcache_lock);
return dentry;
}