From 5cc3821b576964513f5532e0ac1efeb52f62ec6c Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 26 Sep 2014 21:20:39 -0400 Subject: pull rehashing and unlocking the target dentry into __d_materialise_dentry() Signed-off-by: Al Viro --- fs/dcache.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) (limited to 'fs') diff --git a/fs/dcache.c b/fs/dcache.c index 7a5b51440afa..36d84ec31d8a 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -2636,7 +2636,6 @@ out_err: /* * Prepare an anonymous dentry for life in the superblock's dentry tree as a * named dentry in place of the dentry to be replaced. - * returns with anon->d_lock held! */ static void __d_materialise_dentry(struct dentry *dentry, struct dentry *anon) { @@ -2655,21 +2654,21 @@ static void __d_materialise_dentry(struct dentry *dentry, struct dentry *anon) dentry->d_parent = dentry; list_del_init(&dentry->d_u.d_child); anon->d_parent = dparent; + list_move(&anon->d_u.d_child, &dparent->d_subdirs); if (likely(!d_unhashed(anon))) { hlist_bl_lock(&anon->d_sb->s_anon); __hlist_bl_del(&anon->d_hash); anon->d_hash.pprev = NULL; hlist_bl_unlock(&anon->d_sb->s_anon); } - list_move(&anon->d_u.d_child, &dparent->d_subdirs); + __d_rehash(anon, d_hash(anon->d_parent, anon->d_name.hash)); write_seqcount_end(&dentry->d_seq); write_seqcount_end(&anon->d_seq); dentry_unlock_parents_for_move(anon, dentry); spin_unlock(&dentry->d_lock); - - /* anon->d_lock still locked, returns locked */ + spin_unlock(&anon->d_lock); } /** @@ -2719,8 +2718,6 @@ struct dentry *d_splice_alias(struct inode *inode, struct dentry *dentry) write_seqlock(&rename_lock); __d_materialise_dentry(dentry, new); write_sequnlock(&rename_lock); - _d_rehash(new); - spin_unlock(&new->d_lock); spin_unlock(&inode->i_lock); security_d_instantiate(new, inode); iput(inode); @@ -2811,9 +2808,9 @@ struct dentry *d_materialise_unique(struct dentry *dentry, struct inode *inode) BUG_ON(!d_unhashed(actual)); spin_lock(&actual->d_lock); -found: _d_rehash(actual); spin_unlock(&actual->d_lock); +found: spin_unlock(&inode->i_lock); out_nolock: if (actual == dentry) { -- cgit v1.2.3