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| author |   Keith Busch <keith.busch@intel.com> | 2015-06-01 09:29:53 -0600 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2015-06-01 14:35:56 -0600 |
| commit | f26cdc8536ad50fb802a0445f836b4f94ca09ae7 (patch) | |
| tree | 8863e8e297fd10241d7ff1e24cdef4ab0b7c625e /fs/buffer.c | |
| parent | block: don't honor chunk sizes for data-less IO (diff) | |
| download | linux-dev-f26cdc8536ad50fb802a0445f836b4f94ca09ae7.tar.xz linux-dev-f26cdc8536ad50fb802a0445f836b4f94ca09ae7.zip | |
blk-mq: Shared tag enhancements
Storage controllers may expose multiple block devices that share hardware
resources managed by blk-mq. This patch enhances the shared tags so a
low-level driver can access the shared resources not tied to the unshared
h/w contexts. This way the LLD can dynamically add and delete disks and
request queues without having to track all the request_queue hctx's to
iterate outstanding tags.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'fs/buffer.c')
0 files changed, 0 insertions, 0 deletions