diff options
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index bfdb755f261f..b9972fe4fc70 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -8,6 +8,7 @@ #include <linux/list.h> #include <linux/pagemap.h> #include <linux/backing-dev.h> +#include <linux/interrupt.h> #include <asm/scatterlist.h> @@ -136,6 +137,11 @@ struct blk_queue_tag { int max_depth; }; +struct blk_plug { + struct list_head list; + struct tasklet_struct task; +}; + /* * Default nr free requests per queue, ll_rw_blk will scale it down * according to available RAM at init time @@ -177,10 +183,7 @@ struct request_queue unsigned long bounce_pfn; int bounce_gfp; - /* - * This is used to remove the plug when tq_disk runs. - */ - struct tq_struct plug_tq; + struct blk_plug plug; /* * various queue flags, see QUEUE_* below @@ -217,6 +220,7 @@ struct request_queue #define QUEUE_FLAG_PLUGGED 0 /* queue is plugged */ #define QUEUE_FLAG_CLUSTER 1 /* cluster several segments into 1 */ #define QUEUE_FLAG_QUEUED 2 /* uses generic tag queueing */ +#define QUEUE_FLAG_STOPPED 3 /* queue is stopped */ #define blk_queue_plugged(q) test_bit(QUEUE_FLAG_PLUGGED, &(q)->queue_flags) #define blk_mark_plugged(q) set_bit(QUEUE_FLAG_PLUGGED, &(q)->queue_flags) @@ -303,6 +307,8 @@ extern void blk_recount_segments(request_queue_t *, struct bio *); extern inline int blk_phys_contig_segment(request_queue_t *q, struct bio *, struct bio *); extern inline int blk_hw_contig_segment(request_queue_t *q, struct bio *, struct bio *); extern int block_ioctl(struct block_device *, unsigned int, unsigned long); +extern void blk_start_queue(request_queue_t *q); +extern void blk_stop_queue(request_queue_t *q); /* * get ready for proper ref counting |