hfsplus: remove the rsrc_inodes list

We never walk the list - the only reason for it is to make the resource fork
inodes appear hashed to the writeback code.  Borrow a trick from JFS to do
that without needing a list head.

Signed-off-by: Christoph Hellwig <hch@tuxera.com>

1 files changed, 9 insertions, 1 deletions

diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index 309defb4f41f..a05b3afa7230 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -204,7 +204,15 @@ static struct dentry *hfsplus_file_lookup(struct inode *dir, struct dentry *dent
         hip->rsrc_inode = dir;
         HFSPLUS_I(dir)->rsrc_inode = inode;
         igrab(dir);
-        hlist_add_head(&inode->i_hash, &HFSPLUS_SB(sb)->rsrc_inodes);
+
+        /*
+         * __mark_inode_dirty expects inodes to be hashed.  Since we don't
+         * want resource fork inodes in the regular inode space, we make them
+         * appear hashed, but do not put on any lists.  hlist_del()
+         * will work fine and require no locking.
+         */
+        inode->i_hash.pprev = &inode->i_hash.next;
+
         mark_inode_dirty(inode);
 out:
         d_add(dentry, inode);