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From: Anand Jain <anand.jain@oracle.com>
To: linux-btrfs@vger.kernel.org
Subject: [PATCH 1/2] btrfs: use BTRFS_SUPER_INFO_SIZE macro at btrfs_read_dev_super()
Date: Fri, 26 Jul 2013 01:29:35 +0800	[thread overview]
Message-ID: <1374773376-29853-1-git-send-email-anand.jain@oracle.com> (raw)

Signed-off-by: Anand Jain <anand.jain@oracle.com>
---
 fs/btrfs/disk-io.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index dfe6864..de5884f 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2982,9 +2982,11 @@ struct buffer_head *btrfs_read_dev_super(struct block_device *bdev)
 	 */
 	for (i = 0; i < 1; i++) {
 		bytenr = btrfs_sb_offset(i);
-		if (bytenr + 4096 >= i_size_read(bdev->bd_inode))
+		if (bytenr + BTRFS_SUPER_INFO_SIZE >=
+					i_size_read(bdev->bd_inode))
 			break;
-		bh = __bread(bdev, bytenr / 4096, 4096);
+		bh = __bread(bdev, bytenr / 4096,
+					BTRFS_SUPER_INFO_SIZE);
 		if (!bh)
 			continue;
 
-- 
1.7.1


             reply	other threads:[~2013-07-25 17:24 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-25 17:29 Anand Jain [this message]
2013-07-25 17:29 ` [PATCH 2/2] btrfs: btrfs_rm_device() should zero mirror SB as well Anand Jain
2013-08-09 20:47   ` Eric Sandeen
2013-08-10  2:04     ` anand jain
2013-08-10 22:10       ` Eric Sandeen
2013-08-12  2:39         ` Anand Jain

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