diff options
| author | Josef Bacik <josef@toxicpanda.com> | 2018-09-28 07:18:02 -0400 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-10-15 17:23:39 +0200 |
| commit | 545e3366db823dc3342ca9d7fea803f829c9062f (patch) | |
| tree | e3683a0c4c50fd3c7c760bf0692a29ea080c769f | |
| parent | 553cceb49681d60975d00892877d4c871bf220f9 (diff) | |
btrfs: make sure we create all new block groups
Allocating new chunks modifies both the extent and chunk tree, which can
trigger new chunk allocations. So instead of doing list_for_each_safe,
just do while (!list_empty()) so we make sure we don't exit with other
pending bg's still on our list.
CC: stable@vger.kernel.org # 4.4+
Reviewed-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Liu Bo <bo.liu@linux.alibaba.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
| -rw-r--r-- | fs/btrfs/extent-tree.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index d68ee91c00fc..c4a1e8f028d3 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -10128,7 +10128,7 @@ error: void btrfs_create_pending_block_groups(struct btrfs_trans_handle *trans) { struct btrfs_fs_info *fs_info = trans->fs_info; - struct btrfs_block_group_cache *block_group, *tmp; + struct btrfs_block_group_cache *block_group; struct btrfs_root *extent_root = fs_info->extent_root; struct btrfs_block_group_item item; struct btrfs_key key; @@ -10136,7 +10136,10 @@ void btrfs_create_pending_block_groups(struct btrfs_trans_handle *trans) bool can_flush_pending_bgs = trans->can_flush_pending_bgs; trans->can_flush_pending_bgs = false; - list_for_each_entry_safe(block_group, tmp, &trans->new_bgs, bg_list) { + while (!list_empty(&trans->new_bgs)) { + block_group = list_first_entry(&trans->new_bgs, + struct btrfs_block_group_cache, + bg_list); if (ret) goto next; |