]> git.baikalelectronics.ru Git - kernel.git/commit
btrfs: trace: Add trace points for unused block groups
authorQu Wenruo <wqu@suse.com>
Thu, 26 Apr 2018 09:17:20 +0000 (17:17 +0800)
committerDavid Sterba <dsterba@suse.com>
Mon, 28 May 2018 16:07:28 +0000 (18:07 +0200)
commitaff8a72fffb29c8079b555450a16532e3e4de70b
treec1264084da9a58e813cb2a6b9e3df6e5a8776a45
parentafd7bd61ff7cb99eaf4040762a693a6a369ec329
btrfs: trace: Add trace points for unused block groups

This patch will add the following trace events:
1) btrfs_remove_block_group
   For btrfs_remove_block_group() function.
   Triggered when a block group is really removed.

2) btrfs_add_unused_block_group
   Triggered which block group is added to unused_bgs list.

3) btrfs_skip_unused_block_group
   Triggered which unused block group is not deleted.

These trace events is pretty handy to debug case related to block group
auto remove.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/extent-tree.c
fs/btrfs/scrub.c
include/trace/events/btrfs.h