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Revert "btrfs: let btrfs_delete_unused_bgs() to clean relocated bgs"

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This reverts commit 5d8eb6fe51.

When we remove devices, we free the device structures.  Delaying
btfs_remove_chunk() ends up hitting a use-after-free on them.

Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
Chris Mason 2016-10-10 13:43:31 -07:00
parent 196e02490c
commit 19c4d2f994
2 changed files with 16 additions and 12 deletions
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2
fs/btrfs/extent-tree.c
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@ -10849,7 +10849,7 @@ void btrfs_delete_unused_bgs(struct btrfs_fs_info *fs_info)
spin_lock(&block_group->lock);
if (block_group->reserved ||
btrfs_block_group_used(&block_group->item) ||
(block_group->ro && !block_group->removed) ||
block_group->ro ||
list_is_singular(&block_group->list)) {
/*
* We want to bail if we made new allocations or have