From 949caf3f7055bf8336a39b6a9baa369664d710fa Mon Sep 17 00:00:00 2001
From: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Date: Fri, 6 May 2011 17:52:32 +0300
Subject: [PATCH] --- yaml --- r: 250459 b: refs/heads/master c:
 e11602ea3e43392904db7a579dc990062ebb7151 h: refs/heads/master i:   250457:
 55be22efab9e1a6ea7cbd5f3b7915678f1d9c6a5   250455:
 8975eefbb994482de14910a86ac5deceeb6bed8c v: v3

---
 [refs]                |  2 +-
 trunk/fs/ubifs/log.c  | 28 +++++++---------------------
 trunk/fs/ubifs/misc.h | 17 +++++++++++++++++
 3 files changed, 25 insertions(+), 22 deletions(-)

diff --git a/[refs] b/[refs]
index 1a213324c18b..2e4f822b8791 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 91c66083fca36cdf496e927ef8bea19e6b1bbdce
+refs/heads/master: e11602ea3e43392904db7a579dc990062ebb7151
diff --git a/trunk/fs/ubifs/log.c b/trunk/fs/ubifs/log.c
index 40fa780ebea7..affea9494ae2 100644
--- a/trunk/fs/ubifs/log.c
+++ b/trunk/fs/ubifs/log.c
@@ -99,20 +99,6 @@ struct ubifs_wbuf *ubifs_get_wbuf(struct ubifs_info *c, int lnum)
 	return NULL;
 }
 
-/**
- * next_log_lnum - switch to the next log LEB.
- * @c: UBIFS file-system description object
- * @lnum: current log LEB
- */
-static inline int next_log_lnum(const struct ubifs_info *c, int lnum)
-{
-	lnum += 1;
-	if (lnum > c->log_last)
-		lnum = UBIFS_LOG_LNUM;
-
-	return lnum;
-}
-
 /**
  * empty_log_bytes - calculate amount of empty space in the log.
  * @c: UBIFS file-system description object
@@ -257,7 +243,7 @@ int ubifs_add_bud_to_log(struct ubifs_info *c, int jhead, int lnum, int offs)
 	ref->jhead = cpu_to_le32(jhead);
 
 	if (c->lhead_offs > c->leb_size - c->ref_node_alsz) {
-		c->lhead_lnum = next_log_lnum(c, c->lhead_lnum);
+		c->lhead_lnum = ubifs_next_log_lnum(c, c->lhead_lnum);
 		c->lhead_offs = 0;
 	}
 
@@ -425,7 +411,7 @@ int ubifs_log_start_commit(struct ubifs_info *c, int *ltail_lnum)
 
 	/* Switch to the next log LEB */
 	if (c->lhead_offs) {
-		c->lhead_lnum = next_log_lnum(c, c->lhead_lnum);
+		c->lhead_lnum = ubifs_next_log_lnum(c, c->lhead_lnum);
 		c->lhead_offs = 0;
 	}
 
@@ -446,7 +432,7 @@ int ubifs_log_start_commit(struct ubifs_info *c, int *ltail_lnum)
 
 	c->lhead_offs += len;
 	if (c->lhead_offs == c->leb_size) {
-		c->lhead_lnum = next_log_lnum(c, c->lhead_lnum);
+		c->lhead_lnum = ubifs_next_log_lnum(c, c->lhead_lnum);
 		c->lhead_offs = 0;
 	}
 
@@ -533,7 +519,7 @@ int ubifs_log_post_commit(struct ubifs_info *c, int old_ltail_lnum)
 	}
 	mutex_lock(&c->log_mutex);
 	for (lnum = old_ltail_lnum; lnum != c->ltail_lnum;
-	     lnum = next_log_lnum(c, lnum)) {
+	     lnum = ubifs_next_log_lnum(c, lnum)) {
 		dbg_log("unmap log LEB %d", lnum);
 		err = ubifs_leb_unmap(c, lnum);
 		if (err)
@@ -642,7 +628,7 @@ static int add_node(struct ubifs_info *c, void *buf, int *lnum, int *offs,
 		err = ubifs_leb_change(c, *lnum, buf, sz, UBI_SHORTTERM);
 		if (err)
 			return err;
-		*lnum = next_log_lnum(c, *lnum);
+		*lnum = ubifs_next_log_lnum(c, *lnum);
 		*offs = 0;
 	}
 	memcpy(buf + *offs, node, len);
@@ -712,7 +698,7 @@ int ubifs_consolidate_log(struct ubifs_info *c)
 		ubifs_scan_destroy(sleb);
 		if (lnum == c->lhead_lnum)
 			break;
-		lnum = next_log_lnum(c, lnum);
+		lnum = ubifs_next_log_lnum(c, lnum);
 	}
 	if (offs) {
 		int sz = ALIGN(offs, c->min_io_size);
@@ -732,7 +718,7 @@ int ubifs_consolidate_log(struct ubifs_info *c)
 	/* Unmap remaining LEBs */
 	lnum = write_lnum;
 	do {
-		lnum = next_log_lnum(c, lnum);
+		lnum = ubifs_next_log_lnum(c, lnum);
 		err = ubifs_leb_unmap(c, lnum);
 		if (err)
 			return err;
diff --git a/trunk/fs/ubifs/misc.h b/trunk/fs/ubifs/misc.h
index c3de04dc952a..0b5296a9a4c5 100644
--- a/trunk/fs/ubifs/misc.h
+++ b/trunk/fs/ubifs/misc.h
@@ -340,4 +340,21 @@ static inline void ubifs_release_lprops(struct ubifs_info *c)
 	mutex_unlock(&c->lp_mutex);
 }
 
+/**
+ * ubifs_next_log_lnum - switch to the next log LEB.
+ * @c: UBIFS file-system description object
+ * @lnum: current log LEB
+ *
+ * This helper function returns the log LEB number which goes next after LEB
+ * 'lnum'.
+ */
+static inline int ubifs_next_log_lnum(const struct ubifs_info *c, int lnum)
+{
+	lnum += 1;
+	if (lnum > c->log_last)
+		lnum = UBIFS_LOG_LNUM;
+
+	return lnum;
+}
+
 #endif /* __UBIFS_MISC_H__ */