From edf866b3805c5651bf7d035b72dc0190cb6ff4a7 Mon Sep 17 00:00:00 2001 From: Sam Bradshaw Date: Fri, 23 May 2014 13:30:16 -0600 Subject: blk-mq: export blk_mq_tag_busy_iter MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Export the blk-mq in-flight tag iterator for driver consumption. This is particularly useful in exception paths or SRSI where in-flight IOs need to be cancelled and/or reissued. The NVMe driver conversion will use this. Signed-off-by: Sam Bradshaw Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe --- block/blk-mq-tag.c | 1 + block/blk-mq-tag.h | 1 - 2 files changed, 1 insertion(+), 1 deletion(-) (limited to 'block') diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c index f6dea968b71..05e2baf4fa0 100644 --- a/block/blk-mq-tag.c +++ b/block/blk-mq-tag.c @@ -400,6 +400,7 @@ void blk_mq_tag_busy_iter(struct blk_mq_tags *tags, fn(data, tag_map); kfree(tag_map); } +EXPORT_SYMBOL(blk_mq_tag_busy_iter); static unsigned int bt_unused_tags(struct blk_mq_bitmap_tags *bt) { diff --git a/block/blk-mq-tag.h b/block/blk-mq-tag.h index e7ff5ceeeb9..2e5e6872d08 100644 --- a/block/blk-mq-tag.h +++ b/block/blk-mq-tag.h @@ -51,7 +51,6 @@ extern void blk_mq_free_tags(struct blk_mq_tags *tags); extern unsigned int blk_mq_get_tag(struct blk_mq_hw_ctx *hctx, unsigned int *last_tag, gfp_t gfp, bool reserved); extern void blk_mq_wait_for_tags(struct blk_mq_hw_ctx *hctx, bool reserved); extern void blk_mq_put_tag(struct blk_mq_hw_ctx *hctx, unsigned int tag, unsigned int *last_tag); -extern void blk_mq_tag_busy_iter(struct blk_mq_tags *tags, void (*fn)(void *data, unsigned long *), void *data); extern bool blk_mq_has_free_tags(struct blk_mq_tags *tags); extern ssize_t blk_mq_tag_sysfs_show(struct blk_mq_tags *tags, char *page); extern void blk_mq_tag_init_last_tag(struct blk_mq_tags *tags, unsigned int *last_tag); -- cgit v1.2.3-18-g5258