From: Joseph Qi <joseph.qi@linux.alibaba.com>
To: tytso@mit.edu, adilger.kernel@dilger.ca
Cc: linux-ext4@vger.kernel.org
Subject: [PATCH] ext4: remove redundant check buffer_uptodate()
Date: Mon, 26 Apr 2021 11:23:19 +0800 [thread overview]
Message-ID: <1619407399-72280-1-git-send-email-joseph.qi@linux.alibaba.com> (raw)
Now set_buffer_uptodate() will test first and then set, so we don't have
to check buffer_uptodate() first, remove it to simplify code.
Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>
---
fs/ext4/inode.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 0948a43..9e02538 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1065,10 +1065,8 @@ static int ext4_block_write_begin(struct page *page, loff_t pos, unsigned len,
block++, block_start = block_end, bh = bh->b_this_page) {
block_end = block_start + blocksize;
if (block_end <= from || block_start >= to) {
- if (PageUptodate(page)) {
- if (!buffer_uptodate(bh))
- set_buffer_uptodate(bh);
- }
+ if (PageUptodate(page))
+ set_buffer_uptodate(bh);
continue;
}
if (buffer_new(bh))
@@ -1092,8 +1090,7 @@ 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) &&
--
1.8.3.1
next reply other threads:[~2021-04-26 3:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-26 3:23 Joseph Qi [this message]
2021-04-26 5:05 ` [PATCH] ext4: remove redundant check buffer_uptodate() riteshh
2021-04-26 6:15 ` Joseph Qi
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