| commit | 098faf5805c80f951ce5e8b4a6842382ad793c38 | [log] [tgz] |
|---|---|---|
| author | Shaohua Li <shli@fusionio.com> | Thu Oct 24 09:06:45 2013 +0100 |
| committer | Jens Axboe <axboe@kernel.dk> | Fri Oct 25 11:55:59 2013 +0100 |
| tree | 7479b126910fc14f0b1690b9414c8bf9033dce70 | |
| parent | 71fe07d040626de7b72244bf6de889c2e0f5aea3 [diff] |
percpu_counter: make APIs irq safe In my usage, sometimes the percpu APIs are called with irq locked, sometimes not. lockdep complains there is potential deadlock. Let's always use percpucounter lock in irq safe way. There should be no performance penality, as all those are slow code path. Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Shaohua Li <shli@fusionio.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>