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Subject[PATCH] ext2: le*_add_cpu conversion
Date
From
From: Marcin Slusarz <marcin.slusarz@gmail.com>

replace all:
little_endian_variable = cpu_to_leX(leX_to_cpu(little_endian_variable) +
expression_in_cpu_byteorder);
with:
leX_add_cpu(&little_endian_variable, expression_in_cpu_byteorder);
generated with semantic patch

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: linux-ext4@vger.kernel.org
---
fs/ext2/ialloc.c | 12 ++++--------
fs/ext2/super.c | 2 +-
fs/ext2/xattr.c | 9 +++------
3 files changed, 8 insertions(+), 15 deletions(-)
diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c
index 5deb8b7..0f3e3f3 100644
--- a/fs/ext2/ialloc.c
+++ b/fs/ext2/ialloc.c
@@ -75,11 +75,9 @@ static void ext2_release_inode(struct super_block *sb, int group, int dir)
}

spin_lock(sb_bgl_lock(EXT2_SB(sb), group));
- desc->bg_free_inodes_count =
- cpu_to_le16(le16_to_cpu(desc->bg_free_inodes_count) + 1);
+ le16_add_cpu(&desc->bg_free_inodes_count, 1);
if (dir)
- desc->bg_used_dirs_count =
- cpu_to_le16(le16_to_cpu(desc->bg_used_dirs_count) - 1);
+ le16_add_cpu(&desc->bg_used_dirs_count, -1);
spin_unlock(sb_bgl_lock(EXT2_SB(sb), group));
if (dir)
percpu_counter_dec(&EXT2_SB(sb)->s_dirs_counter);
@@ -539,13 +537,11 @@ got:
percpu_counter_inc(&sbi->s_dirs_counter);

spin_lock(sb_bgl_lock(sbi, group));
- gdp->bg_free_inodes_count =
- cpu_to_le16(le16_to_cpu(gdp->bg_free_inodes_count) - 1);
+ le16_add_cpu(&gdp->bg_free_inodes_count, -1);
if (S_ISDIR(mode)) {
if (sbi->s_debts[group] < 255)
sbi->s_debts[group]++;
- gdp->bg_used_dirs_count =
- cpu_to_le16(le16_to_cpu(gdp->bg_used_dirs_count) + 1);
+ le16_add_cpu(&gdp->bg_used_dirs_count, 1);
} else {
if (sbi->s_debts[group])
sbi->s_debts[group]--;
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 108f739..7e68673 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -603,7 +603,7 @@ static int ext2_setup_super (struct super_block * sb,
"running e2fsck is recommended\n");
if (!le16_to_cpu(es->s_max_mnt_count))
es->s_max_mnt_count = cpu_to_le16(EXT2_DFL_MAX_MNT_COUNT);
- es->s_mnt_count=cpu_to_le16(le16_to_cpu(es->s_mnt_count) + 1);
+ le16_add_cpu(&es->s_mnt_count, 1);
ext2_write_super(sb);
if (test_opt (sb, DEBUG))
printk ("[EXT II FS %s, %s, bs=%lu, fs=%lu, gc=%lu, "
diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c
index 3e8683d..495ec0d 100644
--- a/fs/ext2/xattr.c
+++ b/fs/ext2/xattr.c
@@ -646,8 +646,7 @@ ext2_xattr_set2(struct inode *inode, struct buffer_head *old_bh,
unlock_buffer(new_bh);
goto cleanup;
}
- HDR(new_bh)->h_refcount = cpu_to_le32(1 +
- le32_to_cpu(HDR(new_bh)->h_refcount));
+ le32_add_cpu(&HDR(new_bh)->h_refcount, 1);
ea_bdebug(new_bh, "refcount now=%d",
le32_to_cpu(HDR(new_bh)->h_refcount));
}
@@ -731,8 +730,7 @@ ext2_xattr_set2(struct inode *inode, struct buffer_head *old_bh,
bforget(old_bh);
} else {
/* Decrement the refcount only. */
- HDR(old_bh)->h_refcount = cpu_to_le32(
- le32_to_cpu(HDR(old_bh)->h_refcount) - 1);
+ le32_add_cpu(&HDR(old_bh)->h_refcount, -1);
if (ce)
mb_cache_entry_release(ce);
DQUOT_FREE_BLOCK(inode, 1);
@@ -789,8 +787,7 @@ ext2_xattr_delete_inode(struct inode *inode)
bforget(bh);
unlock_buffer(bh);
} else {
- HDR(bh)->h_refcount = cpu_to_le32(
- le32_to_cpu(HDR(bh)->h_refcount) - 1);
+ le32_add_cpu(&HDR(bh)->h_refcount, -1);
if (ce)
mb_cache_entry_release(ce);
ea_bdebug(bh, "refcount now=%d",
--
1.5.3.7


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