Patchwork [PATCHv2,5/9] UBIFS: do not use key type in list_sort

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Submitter Artem Bityutskiy
Date Aug. 8, 2010, 9:57 a.m.
Message ID <1281261452-9868-6-git-send-email-dedekind1@gmail.com>
Download mbox | patch
Permalink /patch/61202/
State New
Headers show

Comments

Artem Bityutskiy - Aug. 8, 2010, 9:57 a.m.
From: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

In comparison function for 'list_sort()' we use key type to distinguish between
node types. However, we have a bit easier way to detect node type -
'snod->type'. This is a bit easier and more logical to use, comparing to
decoding key types. Also allows to get rid of 2 local variables.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
---
 fs/ubifs/gc.c |   18 +++++++++---------
 1 files changed, 9 insertions(+), 9 deletions(-)

Patch

diff --git a/fs/ubifs/gc.c b/fs/ubifs/gc.c
index fd944fe..f2be055 100644
--- a/fs/ubifs/gc.c
+++ b/fs/ubifs/gc.c
@@ -157,7 +157,6 @@  int data_nodes_cmp(void *priv, struct list_head *a, struct list_head *b)
  */
 int nondata_nodes_cmp(void *priv, struct list_head *a, struct list_head *b)
 {
-	int typea, typeb;
 	ino_t inuma, inumb;
 	struct ubifs_info *c = priv;
 	struct ubifs_scan_node *sa, *sb;
@@ -165,21 +164,22 @@  int nondata_nodes_cmp(void *priv, struct list_head *a, struct list_head *b)
 	cond_resched();
 	sa = list_entry(a, struct ubifs_scan_node, list);
 	sb = list_entry(b, struct ubifs_scan_node, list);
-	typea = key_type(c, &sa->key);
-	typeb = key_type(c, &sb->key);
-	ubifs_assert(typea != UBIFS_DATA_KEY && typeb != UBIFS_DATA_KEY);
+	ubifs_assert(sa->type != UBIFS_DATA_NODE &&
+		     sb->type != UBIFS_DATA_NODE);
 
 	/* Inodes go before directory entries */
-	if (typea == UBIFS_INO_KEY) {
-		if (typeb == UBIFS_INO_KEY)
+	if (sa->type == UBIFS_INO_NODE) {
+		if (sb->type == UBIFS_INO_NODE)
 			return sb->len - sa->len;
 		return -1;
 	}
-	if (typeb == UBIFS_INO_KEY)
+	if (sb->type == UBIFS_INO_NODE)
 		return 1;
 
-	ubifs_assert(typea == UBIFS_DENT_KEY || typea == UBIFS_XENT_KEY);
-	ubifs_assert(typeb == UBIFS_DENT_KEY || typeb == UBIFS_XENT_KEY);
+	ubifs_assert(sa->type == UBIFS_DENT_NODE ||
+		     sa->type == UBIFS_XENT_NODE);
+	ubifs_assert(sb->type == UBIFS_DENT_NODE ||
+		     sb->type == UBIFS_XENT_NODE);
 	inuma = key_inum(c, &sa->key);
 	inumb = key_inum(c, &sb->key);