Commit bc5fee91 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

blk-cgroup: move blkcg_css to blk-cgroup.c 



blkcg_css is only used in blk-cgroup.c, so move it there.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Acked-by: default avatarTejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20220420042723.1010598-13-hch@lst.de


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent c97ab271

block/blk-cgroup.c

+17 −0
Original line number Diff line number Diff line
@@ -59,6 +59,23 @@ static struct workqueue_struct *blkcg_punt_bio_wq; 


#define BLKG_DESTROY_BATCH_SIZE  64



/**

 * blkcg_css - find the current css

 *

 * Find the css associated with either the kthread or the current task.

 * This may return a dying css, so it is up to the caller to use tryget logic

 * to confirm it is alive and well.

 */

static struct cgroup_subsys_state *blkcg_css(void)

{

	struct cgroup_subsys_state *css;



	css = kthread_blkcg();

	if (css)

		return css;

	return task_css(current, io_cgrp_id);

}



static bool blkcg_policy_enabled(struct request_queue *q,

				 const struct blkcg_policy *pol)

{

block/blk-cgroup.h

+0 −17
Original line number Diff line number Diff line
@@ -210,23 +210,6 @@ int blkg_conf_prep(struct blkcg *blkcg, const struct blkcg_policy *pol, 
		   char *input, struct blkg_conf_ctx *ctx);

void blkg_conf_finish(struct blkg_conf_ctx *ctx);



/**

 * blkcg_css - find the current css

 *

 * Find the css associated with either the kthread or the current task.

 * This may return a dying css, so it is up to the caller to use tryget logic

 * to confirm it is alive and well.

 */

static inline struct cgroup_subsys_state *blkcg_css(void)

{

	struct cgroup_subsys_state *css;



	css = kthread_blkcg();

	if (css)

		return css;

	return task_css(current, io_cgrp_id);

}



/**

 * bio_issue_as_root_blkg - see if this bio needs to be issued as root blkg

 * @return: true if this bio needs to be submitted with the root blkg context.