linux-ext4 - [PATCH v2 7/8] fs/jbd2/journal.c: Use strreplace

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Date:	Tue,  9 Jun 2015 01:26:55 +0200
From:	Rasmus Villemoes <linux@...musvillemoes.dk>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	"Theodore Ts'o" <tytso@....edu>
Cc:	Joe Perches <joe@...ches.com>, Al Viro <viro@...IV.linux.org.uk>,
	Rasmus Villemoes <linux@...musvillemoes.dk>,
	linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 7/8] fs/jbd2/journal.c: Use strreplace

In one case, we eliminate a local variable; in the other a strlen()
call and some .text.

Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk>
---
v2: no changes.

 fs/jbd2/journal.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index b96bd8076b70..5c187ded12d6 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -1137,7 +1137,6 @@ journal_t * jbd2_journal_init_dev(struct block_device *bdev,
 {
 	journal_t *journal = journal_init_common();
 	struct buffer_head *bh;
-	char *p;
 	int n;
 
 	if (!journal)
@@ -1150,9 +1149,7 @@ journal_t * jbd2_journal_init_dev(struct block_device *bdev,
 	journal->j_blk_offset = start;
 	journal->j_maxlen = len;
 	bdevname(journal->j_dev, journal->j_devname);
-	p = journal->j_devname;
-	while ((p = strchr(p, '/')))
-		*p = '!';
+	strreplace(journal->j_devname, '/', '!');
 	jbd2_stats_proc_init(journal);
 	n = journal->j_blocksize / sizeof(journal_block_tag_t);
 	journal->j_wbufsize = n;
@@ -1204,10 +1201,7 @@ journal_t * jbd2_journal_init_inode (struct inode *inode)
 	journal->j_dev = journal->j_fs_dev = inode->i_sb->s_bdev;
 	journal->j_inode = inode;
 	bdevname(journal->j_dev, journal->j_devname);
-	p = journal->j_devname;
-	while ((p = strchr(p, '/')))
-		*p = '!';
-	p = journal->j_devname + strlen(journal->j_devname);
+	p = strreplace(journal->j_devname, '/', '!');
 	sprintf(p, "-%lu", journal->j_inode->i_ino);
 	jbd_debug(1,
 		  "journal %p: inode %s/%ld, size %Ld, bits %d, blksize %ld\n",
-- 
2.1.3

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