diff options
| author | Shaohua Li <[email protected]> | 2013-10-15 09:05:03 +0800 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2013-10-25 11:56:00 +0100 |
| commit | 1dddc01af0d42b21058e0cb9c1ca9e8d5204d9b0 (patch) | |
| tree | c2812f72384ee2f4e0d90f65844bdd91a370e8c5 /fs/jbd/commit.c | |
| parent | 7fc2ba17e8bf9f218cac10cc2a3de613d9d9086d (diff) | |
percpu_ida: add an API to return free tags
Add an API to return free tags, blk-mq-tag will use it.
Note, this just returns a snapshot of free tags number. blk-mq-tag has
two usages of it. One is for info output for diagnosis. The other is to
quickly check if there are free tags for request dispatch checking.
Neither requires very precise.
Cc: Andrew Morton <[email protected]>
Signed-off-by: Shaohua Li <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'fs/jbd/commit.c')
0 files changed, 0 insertions, 0 deletions