diff options
| author | Christoph Hellwig <hch@lst.de> | 2024-11-13 16:20:44 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-25 10:48:06 +0200 |
| commit | 2ad0f19a4e9955703ac5c4e945f0bcdba0098794 (patch) | |
| tree | 2217638c684d761d9d3df54c176f2e7154cb5f62 /include/linux/blkdev.h | |
| parent | 5b34f40cdab698566b8cdcfa6f7c202861749fa0 (diff) | |
block: add a rq_list type
commit a3396b99990d8b4e5797e7b16fdeb64c15ae97bb upstream.
Replace the semi-open coded request list helpers with a proper rq_list
type that mirrors the bio_list and has head and tail pointers. Besides
better type safety this actually allows to insert at the tail of the
list, which will be useful soon.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20241113152050.157179-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 8f37c5dd52b2..402a7d7fe98d 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -996,6 +996,11 @@ extern void blk_put_queue(struct request_queue *); void blk_mark_disk_dead(struct gendisk *disk); #ifdef CONFIG_BLOCK +struct rq_list { + struct request *head; + struct request *tail; +}; + /* * blk_plug permits building a queue of related requests by holding the I/O * fragments for a short period. This allows merging of sequential requests @@ -1008,10 +1013,10 @@ void blk_mark_disk_dead(struct gendisk *disk); * blk_flush_plug() is called. */ struct blk_plug { - struct request *mq_list; /* blk-mq requests */ + struct rq_list mq_list; /* blk-mq requests */ /* if ios_left is > 1, we can batch tag/rq allocations */ - struct request *cached_rq; + struct rq_list cached_rqs; u64 cur_ktime; unsigned short nr_ios; @@ -1660,7 +1665,7 @@ int bdev_thaw(struct block_device *bdev); void bdev_fput(struct file *bdev_file); struct io_comp_batch { - struct request *req_list; + struct rq_list req_list; bool need_ts; void (*complete)(struct io_comp_batch *); }; |