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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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