diff options
| author | Christoph Hellwig <hch@lst.de> | 2024-06-26 16:26:29 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-06-26 09:37:35 -0600 |
| commit | e94b45d08b5d1c230c0f59c3eed758d28658851e (patch) | |
| tree | 0b340806fc8d7ad718ab1e9abc99aa0a977035ea /include/linux/blkdev.h | |
| parent | abfc9d810926dfbf5645c7755c8d5ab96273f27d (diff) | |
block: move dma_pad_mask into queue_limits
dma_pad_mask is a queue_limits by all ways of looking at it, so move it
there and set it through the atomic queue limits APIs.
Add a little helper that takes the alignment and pad into account to
simplify the code that is touched a bit.
Note that there never was any need for the > check in
blk_queue_update_dma_pad, this probably was just copy and paste from
dma_update_dma_alignment.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20240626142637.300624-9-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 94fcbc912312..a53e3434e1a2 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -401,6 +401,7 @@ struct queue_limits { * due to possible offsets. */ unsigned int dma_alignment; + unsigned int dma_pad_mask; struct blk_integrity integrity; }; @@ -509,8 +510,6 @@ struct request_queue { */ int id; - unsigned int dma_pad_mask; - /* * queue settings */ @@ -981,7 +980,6 @@ extern int blk_stack_limits(struct queue_limits *t, struct queue_limits *b, sector_t offset); void queue_limits_stack_bdev(struct queue_limits *t, struct block_device *bdev, sector_t offset, const char *pfx); -extern void blk_queue_update_dma_pad(struct request_queue *, unsigned int); extern void blk_queue_rq_timeout(struct request_queue *, unsigned int); struct blk_independent_access_ranges * @@ -1433,10 +1431,16 @@ static inline bool bdev_iter_is_aligned(struct block_device *bdev, bdev_logical_block_size(bdev) - 1); } +static inline int blk_lim_dma_alignment_and_pad(struct queue_limits *lim) +{ + return lim->dma_alignment | lim->dma_pad_mask; +} + static inline int blk_rq_aligned(struct request_queue *q, unsigned long addr, unsigned int len) { - unsigned int alignment = queue_dma_alignment(q) | q->dma_pad_mask; + unsigned int alignment = blk_lim_dma_alignment_and_pad(&q->limits); + return !(addr & alignment) && !(len & alignment); } |