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| author | Omar Sandoval <osandov@fb.com> | 2016-09-17 08:38:44 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-09-17 08:38:44 -0600 |
| commit | 88459642cba452630326b9cab1c651e09577d4e4 (patch) | |
| tree | cd7ecd917b294a92ff827b0e7dab526f0069547f /block/blk-mq.h | |
| parent | 703fd1c0f177219e3a84e6c095c31dc566514d81 (diff) | |
| download | op-kernel-dev-88459642cba452630326b9cab1c651e09577d4e4.zip op-kernel-dev-88459642cba452630326b9cab1c651e09577d4e4.tar.gz | |
blk-mq: abstract tag allocation out into sbitmap library
This is a generally useful data structure, so make it available to
anyone else who might want to use it. It's also a nice cleanup
separating the allocation logic from the rest of the tag handling logic.
The code is behind a new Kconfig option, CONFIG_SBITMAP, which is only
selected by CONFIG_BLOCK for now.
This should be a complete noop functionality-wise.
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-mq.h')
| -rw-r--r-- | block/blk-mq.h | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/block/blk-mq.h b/block/blk-mq.h index 9087b11..71831f9 100644 --- a/block/blk-mq.h +++ b/block/blk-mq.h @@ -63,15 +63,6 @@ extern void blk_mq_rq_timed_out(struct request *req, bool reserved); void blk_mq_release(struct request_queue *q); -/* - * Basic implementation of sparser bitmap, allowing the user to spread - * the bits over more cachelines. - */ -struct blk_align_bitmap { - unsigned long word; - unsigned long depth; -} ____cacheline_aligned_in_smp; - static inline struct blk_mq_ctx *__blk_mq_get_ctx(struct request_queue *q, unsigned int cpu) { |
