reiserfs: fixup xattr_root caching
The xattr_root caching was broken from my previous patch set. It wouldn't
cause corruption, but could cause decreased performance due to allocating
a larger chunk of the journal (~ 27 blocks) than it would actually use.
This patch loads the xattr root dentry at xattr initialization and creates
it on-demand. Since we're using the cached dentry, there's no point
in keeping lookup_or_create_dir around, so that's removed.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/include/linux/reiserfs_xattr.h b/include/linux/reiserfs_xattr.h
index fea1a8e..cdedc01 100644
--- a/include/linux/reiserfs_xattr.h
+++ b/include/linux/reiserfs_xattr.h
@@ -98,7 +98,7 @@
if ((REISERFS_I(inode)->i_flags & i_has_xattr_dir) == 0) {
nblocks += JOURNAL_BLOCKS_PER_OBJECT(inode->i_sb);
- if (REISERFS_SB(inode->i_sb)->xattr_root == NULL)
+ if (!REISERFS_SB(inode->i_sb)->xattr_root->d_inode)
nblocks += JOURNAL_BLOCKS_PER_OBJECT(inode->i_sb);
}