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scst_lib: Port to Linux kernel v6.18

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Support for the following block layer and memory management changes in
the Linux kernel v6.18:

  - d86eaa0f3c56 ("block: remove the bi_inline_vecs variable sized array
    from struct bio")
  - 84efbefa26df ("mm: remove nth_page()")
This commit is contained in:
Ameer Hamza
2025-10-30 11:02:08 +03:00
committed by Gleb Chesnokov
parent 0d3c9018af
commit 6c73cc8d2f
1 changed files with 16 additions and 1 deletions
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scst/src/scst_lib.c
+16 -1
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@@ -8369,12 +8369,19 @@ scst_alloc_bio(unsigned short nr_vecs, gfp_t gfp_mask)
/*
* See also commit 066ff571011d ("block: turn bio_kmalloc into a
* simple kmalloc wrapper").
* See also commit d86eaa0f3c56 ("block: remove the bi_inline_vecs
* variable sized array from struct bio") # v6.18.
*/
struct bio *bio;
bio = bio_kmalloc(nr_vecs, gfp_mask);
if (bio)
if (bio) {
#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 18, 0)
bio_init(bio, NULL, bio->bi_inline_vecs, nr_vecs, 0);
#else
bio_init(bio, NULL, bio_inline_vecs(bio), nr_vecs, 0);
#endif
}
return bio;
#endif
@@ -8575,7 +8582,15 @@ static struct request *__blk_map_kern_sg(struct request_queue *q,
need_new_bio = false;
offset = 0;
len -= bytes;
#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 18, 0)
page = nth_page(page, 1);
#else
/*
* See also commit 84efbefa26df ("mm: remove nth_page()") # v6.18.
* Use simple pointer arithmetic for contiguous pages.
*/
page = page + 1;
#endif
}
}
}