diff options
| author | Chandan Rajendra <chandan@linux.vnet.ibm.com> | 2016-06-23 15:16:44 +0530 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2016-06-23 10:44:42 -0700 |
| commit | b7f67055d2df9b8f68f02e49d256ee3973999bd2 (patch) | |
| tree | 0fcd75971843a7db70550df761c7028599192a80 /fs/btrfs/disk-io.c | |
| parent | c0d2f6104e8ab2eb75e58e72494ad4b69c5227f8 (diff) | |
| download | linux-b7f67055d2df9b8f68f02e49d256ee3973999bd2.tar.bz2 | |
Btrfs: Force stripesize to the value of sectorsize
Btrfs code currently assumes stripesize to be same as
sectorsize. However Btrfs-progs (until commit
df05c7ed455f519e6e15e46196392e4757257305) has been setting
btrfs_super_block->stripesize to a value of 4096.
This commit makes sure that the value of btrfs_super_block->stripesize
is a power of 2. Later, it unconditionally sets btrfs_root->stripesize
to sectorsize.
Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/disk-io.c')
| -rw-r--r-- | fs/btrfs/disk-io.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 54cca7a1572b..60ce1190307b 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2806,7 +2806,7 @@ int open_ctree(struct super_block *sb, nodesize = btrfs_super_nodesize(disk_super); sectorsize = btrfs_super_sectorsize(disk_super); - stripesize = btrfs_super_stripesize(disk_super); + stripesize = sectorsize; fs_info->dirty_metadata_batch = nodesize * (1 + ilog2(nr_cpu_ids)); fs_info->delalloc_batch = sectorsize * 512 * (1 + ilog2(nr_cpu_ids)); @@ -4133,9 +4133,7 @@ static int btrfs_check_super_valid(struct btrfs_fs_info *fs_info, btrfs_super_bytes_used(sb)); ret = -EINVAL; } - if (!is_power_of_2(btrfs_super_stripesize(sb)) || - ((btrfs_super_stripesize(sb) != sectorsize) && - (btrfs_super_stripesize(sb) != 4096))) { + if (!is_power_of_2(btrfs_super_stripesize(sb))) { btrfs_err(fs_info, "invalid stripesize %u", btrfs_super_stripesize(sb)); ret = -EINVAL; |