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authorIlya Dryomov <idryomov@gmail.com>2013-08-27 14:50:44 +0400
committerChris Mason <chris.mason@fusionio.com>2013-09-01 16:16:38 +0400
commit795a33213973cf0195198132162862fb05929425 (patch)
treeb32a10de047e619ee26b5f9de91cb4343af1c789 /fs/btrfs/volumes.c
parentd8f980391f418e567c805d3e40be5d63bfc4c8ea (diff)
downloadlinux-795a33213973cf0195198132162862fb05929425.tar.xz
Btrfs: stop refusing the relocation of chunk 0
AFAICT chunk 0 is no longer special, and so it should be restriped just like every other chunk. One reason for this change is us refusing the relocation can lead to filesystems that can only be mounted ro, and never rw -- see the bugzilla [1] for details. The other reason is that device removal code is already doing this: it will happily relocate chunk 0 is part of shrinking the device. [1] https://bugzilla.kernel.org/show_bug.cgi?id=60594 Reported-by: Xavier Bassery <xavier@bartica.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs/btrfs/volumes.c')
-rw-r--r--fs/btrfs/volumes.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index f42e41290124..603cce85764f 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2997,10 +2997,6 @@ again:
if (found_key.objectid != key.objectid)
break;
- /* chunk zero is special */
- if (found_key.offset == 0)
- break;
-
chunk = btrfs_item_ptr(leaf, slot, struct btrfs_chunk);
if (!counting) {
@@ -3036,6 +3032,8 @@ again:
spin_unlock(&fs_info->balance_lock);
}
loop:
+ if (found_key.offset == 0)
+ break;
key.offset = found_key.offset - 1;
}