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| author |  Wang Xiaoguang <wangxg.fnst@cn.fujitsu.com>
| 2016-11-07 15:59:16 +0800 |
|---|---|---|
| committer |  David Sterba <dsterba@suse.com>
| 2016-11-30 13:45:14 +0100 |
| commit | 939659dfd3ed4ff36dde532782207cfb0e5fbcf6 (patch) | |
| tree | 402a2e85e4e0f75657b8a156d51c3ab6172636cb /fs/btrfs/ctree.h | |
| parent | btrfs: cleanup: use already calculated value in btrfs_should_throttle_delayed... (diff) | |
| download | linux-939659dfd3ed4ff36dde532782207cfb0e5fbcf6.tar.gz linux-939659dfd3ed4ff36dde532782207cfb0e5fbcf6.tar.bz2 linux-939659dfd3ed4ff36dde532782207cfb0e5fbcf6.zip | |
btrfs: add necessary comments about tickets_id
Tickets_id's name may result in some misunderstandings, it just indicates
the next ticket will be handled and is not stored per ticket.
Fixes: ce12965 ("btrfs: introduce tickets_id to determine whether
asynchronous metadata reclaim work makes progress")
Signed-off-by: Wang Xiaoguang <wangxg.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index e4e01a99201a..b26b8b363f7f 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -426,6 +426,10 @@ struct btrfs_space_info { struct list_head ro_bgs; struct list_head priority_tickets; struct list_head tickets; + /* + * tickets_id just indicates the next ticket will be handled, so note + * it's not stored per ticket. + */ u64 tickets_id; struct rw_semaphore groups_sem; |