This is attempting to make __btrfs_map_block less scary :) The major changes are
1) split operations for discard out of __btrfs_map_block and we don't copy discard operations for the target device of dev replace since they're not as important as writes. 2) put dev replace stuff into helpers since they're basically self-independant. v2: - add length to error handling output. - use helper get_chunk_map to simplify the code. Liu Bo (7): Btrfs: create a helper for getting chunk map Btrfs: separate DISCARD from __btrfs_map_block Btrfs: introduce a function to get extra mirror from replace Btrfs: handle operations for device replace separately Btrfs: do not add extra mirror when dev_replace target dev is not available Btrfs: helper for ops that requires full stripe Btrfs: convert BUG_ON to WARN_ON fs/btrfs/extent_io.c | 3 +- fs/btrfs/volumes.c | 807 +++++++++++++++++++++++++++------------------------ fs/btrfs/volumes.h | 2 +- 3 files changed, 428 insertions(+), 384 deletions(-) -- 2.5.5 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html