Commit 1f83bb4b authored Feb 21, 2021 by Chaitanya Kulkarni Committed by Jens Axboe Feb 22, 2021

blktrace: add blk_fill_rwbs documentation comment



blk_fill_rwbs() is an expoted function, add kernel style documentation
comment.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent 179d1600

include/linux/blktrace_api.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -119,7 +119,7 @@ struct compat_blk_user_trace_setup {

		#endif

		extern void blk_fill_rwbs(char *rwbs, unsigned int op);
		void blk_fill_rwbs(char *rwbs, unsigned int op);

		static inline sector_t blk_rq_trace_sector(struct request *rq)
		{

kernel/trace/blktrace.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -1867,6 +1867,16 @@ void blk_trace_remove_sysfs(struct device *dev)

		#ifdef CONFIG_EVENT_TRACING

		/**
		* blk_fill_rwbs - Fill the buffer rwbs by mapping op to character string.
		* @rwbs buffer to be filled
		* @op: REQ_OP_XXX for the tracepoint
		*
		* Description:
		* Maps the REQ_OP_XXX to character and fills the buffer provided by the
		* caller with resulting string.
		*
		**/
		void blk_fill_rwbs(char *rwbs, unsigned int op)
		{
		int i = 0;