Commit 37ea7a1f6b84ffc6f8e45b5377e29609b58330a4
Committed by
Greg Kroah-Hartman
Greg Kroah-Hartman
1 parent
d77fe802ae
btrfs: fix wrong accounting of raid1 data profile in statfs
commit 0d95c1bec906dd1ad951c9c001e798ca52baeb0f upstream. The sizes that are obtained from space infos are in raw units and have to be adjusted according to the raid factor. This was missing for f_bavail and df reported doubled size for raid1. Reported-by: Martin Steigerwald <Martin@lichtvoll.de> Fixes: ba7b6e62f420 ("btrfs: adjust statfs calculations according to raid profiles") Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Chris Mason <clm@fb.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Showing 1 changed file with 1 additions and 1 deletions Side-by-side Diff
fs/btrfs/super.c
| ... | ... | @@ -1824,7 +1824,7 @@ |
| 1824 | 1824 | buf->f_bfree -= block_rsv->size >> bits; |
| 1825 | 1825 | spin_unlock(&block_rsv->lock); |
| 1826 | 1826 | |
| 1827 | - buf->f_bavail = total_free_data; | |
| 1827 | + buf->f_bavail = div_u64(total_free_data, factor); | |
| 1828 | 1828 | ret = btrfs_calc_avail_data_space(fs_info->tree_root, &total_free_data); |
| 1829 | 1829 | if (ret) { |
| 1830 | 1830 | mutex_unlock(&fs_info->chunk_mutex); |