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Message-ID: <20080217055750.GB3390@APFDCB5C>
Date: Sun, 17 Feb 2008 14:57:51 +0900
From: Akinobu Mita <akinobu.mita@...il.com>
To: linux-ext4@...r.kernel.org
Cc: Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH 2/3] ext2: use ext2_group_first_block_no()
Use ext2_group_first_block_no() and assign the return values to
ext2_fsblk_t variables.
Signed-off-by: Akinobu Mita <akinobu.mita@...il.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
---
fs/ext2/inode.c | 3 +--
fs/ext2/super.c | 11 +++++------
fs/ext2/xattr.c | 6 ++----
3 files changed, 8 insertions(+), 12 deletions(-)
Index: 2.6-rc/fs/ext2/super.c
===================================================================
--- 2.6-rc.orig/fs/ext2/super.c
+++ 2.6-rc/fs/ext2/super.c
@@ -622,13 +622,13 @@ static int ext2_check_descriptors(struct
{
int i;
struct ext2_sb_info *sbi = EXT2_SB(sb);
- unsigned long first_block = le32_to_cpu(sbi->s_es->s_first_data_block);
- unsigned long last_block;
ext2_debug ("Checking group descriptors");
for (i = 0; i < sbi->s_groups_count; i++) {
struct ext2_group_desc *gdp = ext2_get_group_desc(sb, i, NULL);
+ ext2_fsblk_t first_block = ext2_group_first_block_no(sb, i);
+ ext2_fsblk_t last_block;
if (i == sbi->s_groups_count - 1)
last_block = le32_to_cpu(sbi->s_es->s_blocks_count) - 1;
@@ -664,7 +664,6 @@ static int ext2_check_descriptors(struct
i, (unsigned long) le32_to_cpu(gdp->bg_inode_table));
return 0;
}
- first_block += EXT2_BLOCKS_PER_GROUP(sb);
}
return 1;
}
@@ -721,10 +720,9 @@ static unsigned long descriptor_loc(stru
int nr)
{
struct ext2_sb_info *sbi = EXT2_SB(sb);
- unsigned long bg, first_data_block, first_meta_bg;
+ unsigned long bg, first_meta_bg;
int has_super = 0;
- first_data_block = le32_to_cpu(sbi->s_es->s_first_data_block);
first_meta_bg = le32_to_cpu(sbi->s_es->s_first_meta_bg);
if (!EXT2_HAS_INCOMPAT_FEATURE(sb, EXT2_FEATURE_INCOMPAT_META_BG) ||
@@ -733,7 +731,8 @@ static unsigned long descriptor_loc(stru
bg = sbi->s_desc_per_block * nr;
if (ext2_bg_has_super(sb, bg))
has_super = 1;
- return (first_data_block + has_super + (bg * sbi->s_blocks_per_group));
+
+ return ext2_group_first_block_no(sb, bg) + has_super;
}
static int ext2_fill_super(struct super_block *sb, void *data, int silent)
Index: 2.6-rc/fs/ext2/inode.c
===================================================================
--- 2.6-rc.orig/fs/ext2/inode.c
+++ 2.6-rc/fs/ext2/inode.c
@@ -275,8 +275,7 @@ static unsigned long ext2_find_near(stru
* It is going to be refered from inode itself? OK, just put it into
* the same cylinder group then.
*/
- bg_start = (ei->i_block_group * EXT2_BLOCKS_PER_GROUP(inode->i_sb)) +
- le32_to_cpu(EXT2_SB(inode->i_sb)->s_es->s_first_data_block);
+ bg_start = ext2_group_first_block_no(inode->i_sb, ei->i_block_group);
colour = (current->pid % 16) *
(EXT2_BLOCKS_PER_GROUP(inode->i_sb) / 16);
return bg_start + colour;
Index: 2.6-rc/fs/ext2/xattr.c
===================================================================
--- 2.6-rc.orig/fs/ext2/xattr.c
+++ 2.6-rc/fs/ext2/xattr.c
@@ -660,10 +660,8 @@ ext2_xattr_set2(struct inode *inode, str
ext2_xattr_cache_insert(new_bh);
} else {
/* We need to allocate a new block */
- int goal = le32_to_cpu(EXT2_SB(sb)->s_es->
- s_first_data_block) +
- EXT2_I(inode)->i_block_group *
- EXT2_BLOCKS_PER_GROUP(sb);
+ ext2_fsblk_t goal = ext2_group_first_block_no(sb,
+ EXT2_I(inode)->i_block_group);
int block = ext2_new_block(inode, goal, &error);
if (error)
goto cleanup;
-
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