From 8d082fb727ac11930ea20bf1612e334ea7c2b697 Mon Sep 17 00:00:00 2001
From: Liu Bo <liubo2009@cn.fujitsu.com>
Date: Tue, 3 Apr 2012 09:56:53 +0800
Subject: Btrfs: do not mount when we have a sectorsize unequal to PAGE_SIZE
Our code is not ready to cope with a sectorsize that's not equal to PAGE_SIZE.
It will lead to hanging-on while writing something.
Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
---
fs/btrfs/disk-io.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'fs')
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 20196f41120..b9866f27ebd 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2254,9 +2254,9 @@ int open_ctree(struct super_block *sb,
goto fail_sb_buffer;
}
- if (sectorsize < PAGE_SIZE) {
- printk(KERN_WARNING "btrfs: Incompatible sector size "
- "found on %s\n", sb->s_id);
+ if (sectorsize != PAGE_SIZE) {
+ printk(KERN_WARNING "btrfs: Incompatible sector size(%lu) "
+ "found on %s\n", (unsigned long)sectorsize, sb->s_id);
goto fail_sb_buffer;
}
--
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