[PATCH] ext4: Delete redundant uptodate check for buffer

[Shaokun Zhang]

From: Yang Guo <guoya...@huawei.com>

The buffer uptodate state has been checked in function set_buffer_uptodate,
there is no need use buffer_uptodate before calling set_buffer_uptodate and
delete it.

Cc: "Theodore Ts'o" <ty...@mit.edu>
Cc: Andreas Dilger <adilger.ker...@dilger.ca>
Signed-off-by: Yang Guo <guoya...@huawei.com>
Signed-off-by: Shaokun Zhang <zhangshao...@hisilicon.com>
---
 fs/ext4/inode.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 0948a43f1b3d..32fa3ad38797 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1066,8 +1066,7 @@ static int ext4_block_write_begin(struct page *page, 
loff_t pos, unsigned len,
                block_end = block_start + blocksize;
                if (block_end <= from || block_start >= to) {
                        if (PageUptodate(page)) {
-                               if (!buffer_uptodate(bh))
-                                       set_buffer_uptodate(bh);
+                               set_buffer_uptodate(bh);
                        }
                        continue;
                }
@@ -1092,8 +1091,7 @@ static int ext4_block_write_begin(struct page *page, 
loff_t pos, unsigned len,
                        }
                }
                if (PageUptodate(page)) {
-                       if (!buffer_uptodate(bh))
-                               set_buffer_uptodate(bh);
+                       set_buffer_uptodate(bh);
                        continue;
                }
                if (!buffer_uptodate(bh) && !buffer_delay(bh) &&
-- 
2.7.4