Patchwork Ext4: remove a useless check for the function ext4_data_block_valid

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Submitter Wang shilong
Date Jan. 26, 2011, 10:45 p.m.
Message ID <4D40A420.8060207@gmail.com>
Download mbox | patch
Permalink /patch/215887/
State New
Headers show

Comments

Wang shilong - Jan. 26, 2011, 10:45 p.m.
From: Wang Shilong <wangsl-fnst@cn.fujitsu.com>

Because it is no doubt 'start_blk + count < start_blk' always comes to
false. It is useless to have this check,remove it.

Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
---
 fs/ext4/block_validity.c | 1 -
 1 file changed, 1 deletion(-)

-- 1.7.11.7

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Patch

diff --git a/fs/ext4/block_validity.c b/fs/ext4/block_validity.c
index 3f11656..5ffce82 100644
--- a/fs/ext4/block_validity.c
+++ b/fs/ext4/block_validity.c
@@ -226,7 +226,6 @@  int ext4_data_block_valid(struct ext4_sb_info *sbi, ext4_fsblk_t start_blk,
 	struct rb_node *n = sbi->system_blks.rb_node;
 
 	if ((start_blk <= le32_to_cpu(sbi->s_es->s_first_data_block)) ||
-	    (start_blk + count < start_blk) ||
 	    (start_blk + count > ext4_blocks_count(sbi->s_es))) {
 		sbi->s_es->s_last_error_block = cpu_to_le64(start_blk);
 		return 0;