kernel/linux.git/block/blk-timeout.c, branch v6.12.80

block: blk-timeout: delete duplicated word

2020-07-31T22:29:47+00:00

Drop the repeated word "request". Change to the correct kernel-doc notation for function name separtor. Signed-off-by: Randy Dunlap Cc: Jens Axboe Cc: linux-block@vger.kernel.org Signed-off-by: Jens Axboe

block: make blk_timeout_init() static

2020-07-17T13:13:42+00:00

The sparse tool complains as follows: block/blk-timeout.c:93:12: warning: symbol 'blk_timeout_init' was not declared. Should it be static? Function blk_timeout_init() is not used outside of blk-timeout.c, so mark it static. Fixes: 9054650fac24 ("block: relax jiffies rounding for timeouts") Reported-by: Hulk Robot Signed-off-by: Wei Yongjun Signed-off-by: Jens Axboe

block: relax jiffies rounding for timeouts

2020-07-15T15:23:35+00:00

In doing high IOPS testing, blk-mq is generally pretty well optimized. There are a few things that stuck out as using more CPU than what is really warranted, and one thing is the round_jiffies_up() that we do twice for each request. That accounts for about 0.8% of the CPU in my testing. We can make this cheaper by avoiding an integer division, by just adding a rough HZ mask that we can AND with instead. The timeouts are only on a second granularity already, we don't have to be that accurate here and this patch barely changes that. All we care about is nice grouping. Signed-off-by: Jens Axboe

blk-mq: move failure injection out of blk_mq_complete_request

2020-06-24T15:15:57+00:00

Move the call to blk_should_fake_timeout out of blk_mq_complete_request and into the drivers, skipping call sites that are obvious error handlers, and remove the now superflous blk_mq_force_complete_rq helper. This ensures we don't keep injecting errors into completions that just terminate the Linux request after the hardware has been reset or the command has been aborted. Reviewed-by: Daniel Wagner Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

block: add SPDX tags to block layer files missing licensing information

2019-04-30T22:12:03+00:00

Various block layer files do not have any licensing information at all. Add SPDX tags for the default kernel GPLv2 license to those. Reviewed-by: Chaitanya Kulkarni Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

block: don't hold the queue_lock over blk_abort_request

2018-11-15T19:13:18+00:00

There is nothing it could synchronize against, so don't go through the pains of acquiring the lock. Reviewed-by: Hannes Reinecke Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

block: remove deadline __deadline manipulation helpers

2018-11-15T19:13:16+00:00

No users left since the removal of the legacy request interface, we can remove all the magic bit stealing now and make it a normal field. But use WRITE_ONCE/READ_ONCE on the new deadline field, given that we don't seem to have any mechanism to guarantee a new value actually gets seen by other threads. Reviewed-by: Hannes Reinecke Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

block: remove req->timeout_list

2018-11-09T18:44:10+00:00

Unused now that the legacy request path is gone. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

block: kill legacy parts of timeout handling

2018-11-07T20:42:33+00:00

The only user of legacy timing now is BSG, which is invoked from the mq timeout handler. Kill the legacy code, and rename the q->rq_timed_out_fn to q->bsg_job_timeout_fn. Reviewed-by: Hannes Reinecke Tested-by: Ming Lei Reviewed-by: Omar Sandoval Signed-off-by: Jens Axboe

blk-mq: Fix timeout handling in case the timeout handler returns BLK_EH_DONE

2018-06-23T16:25:45+00:00

Make sure that RQF_TIMED_OUT is cleared when a request is reused after a block driver timeout handler has returned BLK_EH_DONE. Fixes: da6612673988 ("blk-mq: don't time out requests again that are in the timeout handler") Signed-off-by: Bart Van Assche Cc: Christoph Hellwig Cc: Jianchao Wang Cc: Andrew Randrianasulu Signed-off-by: Jens Axboe