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| author |   Jens Axboe <jens.axboe@oracle.com> | 2008-08-26 10:25:02 +0200 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2008-10-09 08:56:09 +0200 |
| commit | ab780f1ece0dc8d5e8e8e85435acc5e4747ccda3 (patch) | |
| tree | 4085b6c929a44de229eb5ef13fa2079211ea5512 /include/linux/blkdev.h | |
| parent | block: add support for IO CPU affinity (diff) | |
| download | linux-dev-ab780f1ece0dc8d5e8e8e85435acc5e4747ccda3.tar.xz linux-dev-ab780f1ece0dc8d5e8e8e85435acc5e4747ccda3.zip | |
block: inherit CPU completion on bio->rq and rq->rq merges
Somewhat incomplete, as we do allow merges of requests and bios
that have different completion CPUs given. This is done on the
assumption that a larger IO is still more beneficial than CPU
locality.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 93204bf7b297..12df8efeef19 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -545,6 +545,7 @@ enum { #define blk_pm_request(rq) \ (blk_pm_suspend_request(rq) || blk_pm_resume_request(rq)) +#define blk_rq_cpu_valid(rq) ((rq)->cpu != -1) #define blk_sorted_rq(rq) ((rq)->cmd_flags & REQ_SORTED) #define blk_barrier_rq(rq) ((rq)->cmd_flags & REQ_HARDBARRIER) #define blk_fua_rq(rq) ((rq)->cmd_flags & REQ_FUA) |