linux-kernel - [PATCH 4/6] staging/lustre: Use hlist primitives directly

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Message-Id: <1438386179-3858502-5-git-send-email-green@linuxhacker.ru>
Date:	Fri, 31 Jul 2015 19:42:57 -0400
From:	green@...uxhacker.ru
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	devel@...verdev.osuosl.org,
	Andreas Dilger <andreas.dilger@...el.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Oleg Drokin <green@...uxhacker.ru>,
	Oleg Drokin <oleg.drokin@...el.com>
Subject: [PATCH 4/6] staging/lustre: Use hlist primitives directly

From: Oleg Drokin <green@...uxhacker.ru>

Get rid of ll_d_hlist* compat defines.

Signed-off-by: Oleg Drokin <oleg.drokin@...el.com>
---
 drivers/staging/lustre/lustre/include/linux/lustre_compat25.h |  9 ---------
 drivers/staging/lustre/lustre/llite/dcache.c                  |  3 +--
 drivers/staging/lustre/lustre/llite/namei.c                   | 10 ++++------
 3 files changed, 5 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/lustre/lustre/include/linux/lustre_compat25.h b/drivers/staging/lustre/lustre/include/linux/lustre_compat25.h
index b37856c..43fa2a9 100644
--- a/drivers/staging/lustre/lustre/include/linux/lustre_compat25.h
+++ b/drivers/staging/lustre/lustre/include/linux/lustre_compat25.h
@@ -69,15 +69,6 @@
 # define inode_dio_read(i)		atomic_inc(&(i)->i_dio_count)
 /* inode_dio_done(i) use as-is for read unlock */
 
-#define ll_d_hlist_node hlist_node
-#define ll_d_hlist_empty(list) hlist_empty(list)
-#define ll_d_hlist_entry(ptr, type, name) hlist_entry(ptr.first, type, name)
-#define ll_d_hlist_for_each(tmp, i_dentry) hlist_for_each(tmp, i_dentry)
-#define ll_d_hlist_for_each_entry(dentry, p, i_dentry, alias) \
-	p = NULL; hlist_for_each_entry(dentry, i_dentry, alias)
-
-
-
 #define ll_pagevec_init(pv, cold)       do {} while (0)
 #define ll_pagevec_add(pv, pg)	  (0)
 #define ll_pagevec_lru_add_file(pv)     do {} while (0)
diff --git a/drivers/staging/lustre/lustre/llite/dcache.c b/drivers/staging/lustre/lustre/llite/dcache.c
index 7b008a6..b866859 100644
--- a/drivers/staging/lustre/lustre/llite/dcache.c
+++ b/drivers/staging/lustre/lustre/llite/dcache.c
@@ -250,7 +250,6 @@ void ll_intent_release(struct lookup_intent *it)
 void ll_invalidate_aliases(struct inode *inode)
 {
 	struct dentry *dentry;
-	struct ll_d_hlist_node *p;
 
 	LASSERT(inode != NULL);
 
@@ -258,7 +257,7 @@ void ll_invalidate_aliases(struct inode *inode)
 	       inode->i_ino, inode->i_generation, inode);
 
 	ll_lock_dcache(inode);
-	ll_d_hlist_for_each_entry(dentry, p, &inode->i_dentry, d_u.d_alias) {
+	hlist_for_each_entry(dentry, &inode->i_dentry, d_u.d_alias) {
 		CDEBUG(D_DENTRY, "dentry in drop %pd (%p) parent %p inode %p flags %d\n",
 		       dentry, dentry, dentry->d_parent,
 		       d_inode(dentry), dentry->d_flags);
diff --git a/drivers/staging/lustre/lustre/llite/namei.c b/drivers/staging/lustre/lustre/llite/namei.c
index 2ed1e0a..05e7dc8 100644
--- a/drivers/staging/lustre/lustre/llite/namei.c
+++ b/drivers/staging/lustre/lustre/llite/namei.c
@@ -144,10 +144,9 @@ struct inode *ll_iget(struct super_block *sb, ino_t hash,
 static void ll_invalidate_negative_children(struct inode *dir)
 {
 	struct dentry *dentry, *tmp_subdir;
-	struct ll_d_hlist_node *p;
 
 	ll_lock_dcache(dir);
-	ll_d_hlist_for_each_entry(dentry, p, &dir->i_dentry, d_u.d_alias) {
+	hlist_for_each_entry(dentry, &dir->i_dentry, d_u.d_alias) {
 		spin_lock(&dentry->d_lock);
 		if (!list_empty(&dentry->d_subdirs)) {
 			struct dentry *child;
@@ -334,15 +333,14 @@ void ll_i2gids(__u32 *suppgids, struct inode *i1, struct inode *i2)
 static struct dentry *ll_find_alias(struct inode *inode, struct dentry *dentry)
 {
 	struct dentry *alias, *discon_alias, *invalid_alias;
-	struct ll_d_hlist_node *p;
 
-	if (ll_d_hlist_empty(&inode->i_dentry))
+	if (hlist_empty(&inode->i_dentry))
 		return NULL;
 
 	discon_alias = invalid_alias = NULL;
 
 	ll_lock_dcache(inode);
-	ll_d_hlist_for_each_entry(alias, p, &inode->i_dentry, d_u.d_alias) {
+	hlist_for_each_entry(alias, &inode->i_dentry, d_u.d_alias) {
 		LASSERT(alias != dentry);
 
 		spin_lock(&alias->d_lock);
@@ -690,7 +688,7 @@ static struct inode *ll_create_node(struct inode *dir, struct lookup_intent *it)
 		goto out;
 	}
 
-	LASSERT(ll_d_hlist_empty(&inode->i_dentry));
+	LASSERT(hlist_empty(&inode->i_dentry));
 
 	/* We asked for a lock on the directory, but were granted a
 	 * lock on the inode.  Since we finally have an inode pointer,
-- 
2.1.0

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