Our code is not ready to cope with a sectorsize that's larger than PAGE_SIZE.
Signed-off-by: Liu Bo <[email protected]> --- fs/btrfs/disk-io.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 20196f4..08e49d2 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2104,6 +2104,14 @@ int open_ctree(struct super_block *sb, err = -EINVAL; goto fail_alloc; } + if (btrfs_super_sectorsize(disk_super) > PAGE_CACHE_SIZE) { + printk(KERN_ERR "BTRFS: couldn't mount because sectorsize(%d)" + " was larger than PAGE_SIZE(%lu)\n", + btrfs_super_sectorsize(disk_super), + (unsigned long long)PAGE_CACHE_SIZE); + err = -EINVAL; + goto fail_alloc; + } features = btrfs_super_incompat_flags(disk_super); features |= BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF; -- 1.6.5.2 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
