xfs
[Top] [All Lists]

[PATCH 5/8]fs/ext4: Evalue bio->bi_rw after calling bio_alloc() and befo

To: axboe <axboe@xxxxxxxxx>, "konrad.wilk" <konrad.wilk@xxxxxxxxxx>, "chris.mason" <chris.mason@xxxxxxxxxxxx>, viro <viro@xxxxxxxxxxxxxxxxxx>, tytso <tytso@xxxxxxx>, "adilger.kernel" <adilger.kernel@xxxxxxxxx>, shaggy <shaggy@xxxxxxxxxx>, mfasheh <mfasheh@xxxxxxxx>, jlbec <jlbec@xxxxxxxxxxxx>, bpm <bpm@xxxxxxx>, elder <elder@xxxxxxxxxx>
Subject: [PATCH 5/8]fs/ext4: Evalue bio->bi_rw after calling bio_alloc() and before calling bio_add_page().
From: majianpeng <majianpeng@xxxxxxxxx>
Date: Mon, 30 Jul 2012 15:24:24 +0800
Cc: linux-kernel <linux-kernel@xxxxxxxxxxxxxxx>, linux-btrfs <linux-btrfs@xxxxxxxxxxxxxxx>, linux-fsdevel <linux-fsdevel@xxxxxxxxxxxxxxx>, linux-ext4 <linux-ext4@xxxxxxxxxxxxxxx>, jfs-discussion <jfs-discussion@xxxxxxxxxxxxxxxxxxxxx>, xfs <xfs@xxxxxxxxxxx>
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:cc:subject:x-priority:x-has-attach:x-mailer :mime-version:message-id:content-type:content-transfer-encoding; bh=IRslP8HgrZaOd9NS9WGZ1U+mCTzM3jt1+CV8F8lXVls=; b=RKC9tzy8gOcbl3LbhZjQGYFeu1Z+l8jhQfzXQ7aliPuGRwJZMf4hgRwMn7UfJMWVyE alCC/NFhcCb/+8ejlwC4XgPWwbN2Ydk9SOxqP3Bv6pUQCY9JzCO5VaTH3vUEncrxPzce bAmEwgDma+kTdkMP2dLBWMn0beOKwU0b53skqP91uP9VaWuVvQq40UDbsotdPuAV6gmt MXWEUWUHYgslmI/XO7YhtqCY3HlamQc5ToaaxwB2LofuyqfjRm2p4+Orx15U10YA/fC5 JVPkGGZbYFHZDL1XsSvvRPmt3JArFzLs5Si7iWUPofHY+Alyw2mMBDFtIuOlQiv/wdA/ 1bTQ==
Because call bio_alloc, the bi_rw is zero by default,but in
bio_add_page used the bi_rw. So evalue bi_rw.

Signed-off-by: Jianpeng Ma <majianpeng@xxxxxxxxx>
---
 fs/ext4/page-io.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index dcdeef1..c875502 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -304,6 +304,7 @@ static int io_submit_init(struct ext4_io_submit *io,
        io->io_bio = bio;
        io->io_op = (wbc->sync_mode == WB_SYNC_ALL ?  WRITE_SYNC : WRITE);
        io->io_next_block = bh->b_blocknr;
+       bio->bi_rw = io->io_op;
        return 0;
 }
 
-- 
1.7.9.5
<Prev in Thread] Current Thread [Next in Thread>
  • [PATCH 5/8]fs/ext4: Evalue bio->bi_rw after calling bio_alloc() and before calling bio_add_page()., majianpeng <=