This patch allows mounting filesystems with blocksize smaller than the
PAGE_SIZE.
Signed-off-by: Chandan Rajendra <chandan@xxxxxxxxxxxxxxxxxx>
---
fs/btrfs/disk-io.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 9800888..5dea6b4 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2816,12 +2816,6 @@ int open_ctree(struct super_block *sb,
goto fail_sb_buffer;
}
- if (sectorsize != PAGE_SIZE) {
- printk(KERN_ERR "BTRFS: incompatible sector size (%lu) "
- "found on %s\n", (unsigned long)sectorsize, sb->s_id);
- goto fail_sb_buffer;
- }
-
mutex_lock(&fs_info->chunk_mutex);
ret = btrfs_read_sys_array(tree_root);
mutex_unlock(&fs_info->chunk_mutex);
@@ -3963,13 +3957,13 @@ static int btrfs_check_super_valid(struct btrfs_fs_info *fs_info,
* Check the lower bound, the alignment and other constraints are
* checked later.
*/
- if (btrfs_super_nodesize(sb) < 4096) {
- printk(KERN_ERR "BTRFS: nodesize too small: %u < 4096\n",
+ if (btrfs_super_nodesize(sb) < 2048) {
+ printk(KERN_ERR "BTRFS: nodesize too small: %u < 2048\n",
btrfs_super_nodesize(sb));
ret = -EINVAL;
}
- if (btrfs_super_sectorsize(sb) < 4096) {
- printk(KERN_ERR "BTRFS: sectorsize too small: %u < 4096\n",
+ if (btrfs_super_sectorsize(sb) < 2048) {
+ printk(KERN_ERR "BTRFS: sectorsize too small: %u < 2048\n",
btrfs_super_sectorsize(sb));
ret = -EINVAL;
}
--
2.1.0
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