kernel/linux.git/include/linux/blktrace_api.h, branch v6.19.11

blktrace: pass blk_user_trace2 to setup functions

2025-10-22T17:14:05+00:00

Pass struct blk_user_trace_setup2 to blktrace_setup_finalize(). This prepares for the incoming extension of the blktrace protocol with a 64bit act_mask. Reviewed-by: Christoph Hellwig Reviewed-by: Damien Le Moal Reviewed-by: Martin K. Petersen Signed-off-by: Johannes Thumshirn Signed-off-by: Jens Axboe

blktrace: use inline function for blk_trace_remove() while blktrace is disabled

2023-06-15T02:24:03+00:00

If config is disabled, call blk_trace_remove() directly will trigger build warning, hence use inline function instead, prepare to fix blktrace debugfs entries leakage. Signed-off-by: Yu Kuai Reviewed-by: Christoph Hellwig Link: https://lore.kernel.org/r/20230610022003.2557284-2-yukuai1@huaweicloud.com Signed-off-by: Jens Axboe

blktrace: Use the new blk_opf_t type

2022-07-14T18:14:30+00:00

Improve static type checking by using the new blk_opf_t type for a function argument that represents a combination of a request operation and request flags. Rename that argument from 'op' into 'opf' to make its role more clear. Cc: Christoph Hellwig Cc: Steven Rostedt Cc: Li Zefan Cc: Chaitanya Kulkarni Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-12-bvanassche@acm.org Signed-off-by: Jens Axboe

block: simplify blktrace sysfs attribute creation

2022-06-28T17:32:42+00:00

Add the trace attributes to the default gendisk attributes, just like we already do for partitions. Signed-off-by: Christoph Hellwig Reviewed-by: Bart Van Assche Link: https://lore.kernel.org/r/20220628171850.1313069-2-hch@lst.de Signed-off-by: Jens Axboe

blktrace: cleanup the __trace_note_message interface

2022-05-02T20:06:20+00:00

Pass the cgroup_subsys_state instead of a the blkg so that blktrace doesn't need to poke into blk-cgroup internals, and give the name a blk prefix as the current name is way too generic for a public interface. Signed-off-by: Christoph Hellwig Acked-by: Tejun Heo Link: https://lore.kernel.org/r/20220420042723.1010598-9-hch@lst.de Signed-off-by: Jens Axboe

block: move struct request to blk-mq.h

2021-10-18T12:17:02+00:00

struct request is only used by blk-mq drivers, so move it and all related declarations to blk-mq.h. Signed-off-by: Christoph Hellwig Reviewed-by: Johannes Thumshirn Link: https://lore.kernel.org/r/20210920123328.1399408-18-hch@lst.de Signed-off-by: Jens Axboe

blktrace: remove debugfs file dentries from struct blk_trace

2021-02-23T16:54:51+00:00

These debugfs dentries do not need to be saved for anything as the whole directory and everything in it is properly cleaned up when the parent directory is removed. So remove them from struct blk_trace and don't save them when created as it's not necessary. Cc: Jens Axboe Cc: Steven Rostedt Cc: Ingo Molnar Cc: linux-block@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Greg Kroah-Hartman Signed-off-by: Jens Axboe

blktrace: add blk_fill_rwbs documentation comment

2021-02-22T13:37:41+00:00

blk_fill_rwbs() is an expoted function, add kernel style documentation comment. Signed-off-by: Chaitanya Kulkarni Reviewed-by: Johannes Thumshirn Reviewed-by: Damien Le Moal Reviewed-by: Christoph Hellwig Signed-off-by: Jens Axboe

block: remove superfluous param in blk_fill_rwbs()

2021-02-22T13:37:41+00:00

The last parameter for the function blk_fill_rwbs() was added in 5782138e47 ("tracing/events: convert block trace points to TRACE_EVENT()") in order to signal read request and use of that parameter was replaced with using switch case REQ_OP_READ with 1b9a9ab78b0 ("blktrace: use op accessors"), but the parameter was never removed. Remove the unused parameter and adjust the respective call sites. Fixes: 1b9a9ab78b0 ("blktrace: use op accessors") Signed-off-by: Chaitanya Kulkarni Reviewed-by: Johannes Thumshirn Reviewed-by: Damien Le Moal Reviewed-by: Christoph Hellwig Signed-off-by: Jens Axboe

block: remove the request_queue to argument request based tracepoints

2020-12-04T16:42:00+00:00

The request_queue can trivially be derived from the request. Signed-off-by: Christoph Hellwig Reviewed-by: Damien Le Moal Reviewed-by: Hannes Reinecke Reviewed-by: Chaitanya Kulkarni Acked-by: Tejun Heo Signed-off-by: Jens Axboe