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scst_lib: Port to Linux kernel v6.11

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Support for the following block layer changes in the Linux kernel v6.11:

- e94b45d08b5d ("block: move dma_pad_mask into queue_limits")
This commit is contained in:
Gleb Chesnokov
2024-09-04 12:17:39 +03:00
parent aa086c9fb3
commit 8c6a968083
1 changed files with 11 additions and 1 deletions
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12
scst/src/scst_lib.c
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@@ -8431,6 +8431,16 @@ static struct request *blk_make_request(struct request_queue *q,
}
#endif
static inline unsigned int
queue_dma_pad_mask(const struct request_queue *q)
{
#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 11, 0)
return q->dma_pad_mask;
#else
return q->limits.dma_pad_mask;
#endif
}
/* __blk_map_kern_sg - map kernel data to a request for REQ_TYPE_BLOCK_PC */
static struct request *__blk_map_kern_sg(struct request_queue *q,
struct scatterlist *sgl, int nents, struct blk_kern_sg_work *bw,
@@ -8553,7 +8563,7 @@ static struct request *__blk_map_kern_sg(struct request_queue *q,
}
/* Total length must satisfy DMA padding alignment */
if ((tot_len & q->dma_pad_mask) && bw != NULL) {
if (bw && (tot_len & queue_dma_pad_mask(q))) {
rq = ERR_PTR(-EINVAL);
goto out_free_bios;
}