Commit 8d082fb7 authored by Liu Bo's avatar Liu Bo Committed by David Sterba
Browse files

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: default avatarLiu Bo <liubo2009@cn.fujitsu.com>
parent 207a232c

fs/btrfs/disk-io.c

+3 −3
Original line number Diff line number Diff line
@@ -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;

	}