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Filipe Manana authored
If a power failure happens while the qgroup rescan kthread is running, the next mount operation will always fail. This is because of a recent regression that makes qgroup_rescan_init() incorrectly return -EINVAL when we are mounting the filesystem (through btrfs_read_qgroup_config()). This causes the -EINVAL error to be returned regardless of any qgroup flags being set instead of returning the error only when neither of the flags BTRFS_QGROUP_STATUS_FLAG_RESCAN nor BTRFS_QGROUP_STATUS_FLAG_ON are set. A test case for fstests follows up soon. Fixes: 9593bf49 ("btrfs: qgroup: show more meaningful qgroup_rescan_init error message") Signed-off-by:
Filipe Manana <fdmanana@suse.com> Reviewed-by:
Qu Wenruo <wqu@suse.com> Signed-off-by:
David Sterba <dsterba@suse.com>
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