linux-kernel - [PATCH v1 8/9] ext4: small cleanup in ext4_commit

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Date:	Tue, 20 Mar 2012 16:41:28 +0200
From:	Artem Bityutskiy <dedekind1@...il.com>
To:	Ted Tso <tytso@....edu>
Cc:	Ext4 Mailing List <linux-ext4@...r.kernel.org>,
	Linux FS Maling List <linux-fsdevel@...r.kernel.org>,
	Linux Kernel Maling List <linux-kernel@...r.kernel.org>
Subject: [PATCH v1 8/9] ext4: small cleanup in ext4_commit_super

From: Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>

We have many 'EXT4_SB(sb)' references in 'ext4_commit_super()' and I am going
to add another one, so I think the function will be a bit tidier if I introduce
a separate 'sbi' pointer for the ext4 superblock.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>
---
 fs/ext4/super.c |   18 +++++++++---------
 1 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 7d453f7..64f3a6a 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4132,8 +4132,9 @@ static int ext4_load_journal(struct super_block *sb,
 
 static int ext4_commit_super(struct super_block *sb, int sync)
 {
-	struct ext4_super_block *es = EXT4_SB(sb)->s_es;
-	struct buffer_head *sbh = EXT4_SB(sb)->s_sbh;
+	struct ext4_sb_info *sbi = EXT4_SB(sb);
+	struct ext4_super_block *es = sbi->s_es;
+	struct buffer_head *sbh = sbi->s_sbh;
 	int error = 0;
 
 	if (!sbh || block_device_ejected(sb))
@@ -4174,18 +4175,17 @@ static int ext4_commit_super(struct super_block *sb, int sync)
 		es->s_wtime = cpu_to_le32(get_seconds());
 	if (sb->s_bdev->bd_part)
 		es->s_kbytes_written =
-			cpu_to_le64(EXT4_SB(sb)->s_kbytes_written +
+			cpu_to_le64(sbi->s_kbytes_written +
 			    ((part_stat_read(sb->s_bdev->bd_part, sectors[1]) -
-			      EXT4_SB(sb)->s_sectors_written_start) >> 1));
+			      sbi->s_sectors_written_start) >> 1));
 	else
-		es->s_kbytes_written =
-			cpu_to_le64(EXT4_SB(sb)->s_kbytes_written);
+		es->s_kbytes_written = cpu_to_le64(sbi->s_kbytes_written);
 	ext4_free_blocks_count_set(es,
-			EXT4_C2B(EXT4_SB(sb), percpu_counter_sum_positive(
-				&EXT4_SB(sb)->s_freeclusters_counter)));
+			EXT4_C2B(sbi, percpu_counter_sum_positive(
+				&sbi->s_freeclusters_counter)));
 	es->s_free_inodes_count =
 		cpu_to_le32(percpu_counter_sum_positive(
-				&EXT4_SB(sb)->s_freeinodes_counter));
+				&sbi->s_freeinodes_counter));
 	BUFFER_TRACE(sbh, "marking dirty");
 	mark_buffer_dirty(sbh);
 	if (sync) {
-- 
1.7.7.6

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