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| author | Eric Seppanen <eric@purestorage.com> | 2011-08-23 21:25:12 +0200 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2011-08-24 08:51:34 +0200 |
| commit | e8037d49835482c9534a9a07bed0d0ea831135ae (patch) | |
| tree | f4d7f714c8a4165cacdcc83e9c6bfe7efb527a24 | |
| parent | 89c63a8ef36a621cb6790c1a56c737e6805ad8f4 (diff) | |
| download | lwn-e8037d49835482c9534a9a07bed0d0ea831135ae.tar.gz lwn-e8037d49835482c9534a9a07bed0d0ea831135ae.zip | |
block: Fix queue_flag update when rq_affinity goes from 2 to 1
Commit 5757a6d76cdf added the QUEUE_FLAG_SAME_FORCE flag, but fails to
clear that flag when the current state is '2' (SAME_COMP + SAME_FORCE)
and the new state is '1' (SAME_COMP).
Acked-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Eric Seppanen <eric@purestorage.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
| -rw-r--r-- | block/blk-sysfs.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index 0ee17b5e7fb6..e681805cdb47 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -258,11 +258,13 @@ queue_rq_affinity_store(struct request_queue *q, const char *page, size_t count) ret = queue_var_store(&val, page, count); spin_lock_irq(q->queue_lock); - if (val) { + if (val == 2) { queue_flag_set(QUEUE_FLAG_SAME_COMP, q); - if (val == 2) - queue_flag_set(QUEUE_FLAG_SAME_FORCE, q); - } else { + queue_flag_set(QUEUE_FLAG_SAME_FORCE, q); + } else if (val == 1) { + queue_flag_set(QUEUE_FLAG_SAME_COMP, q); + queue_flag_clear(QUEUE_FLAG_SAME_FORCE, q); + } else if (val == 0) { queue_flag_clear(QUEUE_FLAG_SAME_COMP, q); queue_flag_clear(QUEUE_FLAG_SAME_FORCE, q); } |