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| author | Martin K. Petersen <martin.petersen@oracle.com> | 2012-09-18 12:19:26 -0400 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2012-09-20 14:31:41 +0200 |
| commit | f31dc1cd490539e2b62a126bc4dc2495b165d772 (patch) | |
| tree | e8a917161111266f72a7aea539c9562dc2f2653d /kernel/lockdep.c | |
| parent | e2a60da74fc8215c68509a89e9a69c66363153db (diff) | |
| download | lwn-f31dc1cd490539e2b62a126bc4dc2495b165d772.tar.gz lwn-f31dc1cd490539e2b62a126bc4dc2495b165d772.zip | |
block: Consolidate command flag and queue limit checks for merges
- blk_check_merge_flags() verifies that cmd_flags / bi_rw are
compatible. This function is called for both req-req and req-bio
merging.
- blk_rq_get_max_sectors() and blk_queue_get_max_sectors() can be used
to query the maximum sector count for a given request or queue. The
calls will return the right value from the queue limits given the
type of command (RW, discard, write same, etc.)
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'kernel/lockdep.c')
0 files changed, 0 insertions, 0 deletions