From patchwork Mon Oct 11 10:38:39 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: ext3: Use DIV_ROUND_UP() on group desc block counting Date: Mon, 11 Oct 2010 00:38:39 -0000 From: Namhyung Kim X-Patchwork-Id: 67410 Message-Id: <1286793519-3774-1-git-send-email-namhyung@gmail.com> To: Jan Kara , Andrew Morton , Andreas Dilger Cc: linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org Signed-off-by: Namhyung Kim --- fs/ext3/super.c | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-) diff --git a/fs/ext3/super.c b/fs/ext3/super.c index 75bbf77..3fce402 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -1864,8 +1864,7 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent) sbi->s_groups_count = ((le32_to_cpu(es->s_blocks_count) - le32_to_cpu(es->s_first_data_block) - 1) / EXT3_BLOCKS_PER_GROUP(sb)) + 1; - db_count = (sbi->s_groups_count + EXT3_DESC_PER_BLOCK(sb) - 1) / - EXT3_DESC_PER_BLOCK(sb); + db_count = DIV_ROUND_UP(sbi->s_groups_count, EXT3_DESC_PER_BLOCK(sb)); sbi->s_group_desc = kmalloc(db_count * sizeof (struct buffer_head *), GFP_KERNEL); if (sbi->s_group_desc == NULL) {