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| author | Benjamin Marzinski <bmarzins@redhat.com> | 2024-07-02 12:56:45 +0300 |
|---|---|---|
| committer | Mikulas Patocka <mpatocka@redhat.com> | 2024-07-02 12:58:08 +0300 |
| commit | 06a0b333e58407970e9b109d054610d2f107ca87 (patch) | |
| tree | 093a4a9e2dfa8078ee35ea620f23163acc592e60 | |
| parent | aaa53168cbcc486ca1927faac00bd99e81d4ff04 (diff) | |
| download | linux-06a0b333e58407970e9b109d054610d2f107ca87.tar.xz | |
dm io: bump num_bvecs to handle offset memory
If dp->get_page() returns a non-zero offset, the bio might need an
additional bvec to deal with the offset. For example, if remaining is
exactly one page size, but there is an offset, the memory will span
two pages.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
| -rw-r--r-- | drivers/md/dm-io.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c index 7409490259d1..3333943fe288 100644 --- a/drivers/md/dm-io.c +++ b/drivers/md/dm-io.c @@ -347,7 +347,7 @@ static void do_region(const blk_opf_t opf, unsigned int region, break; default: num_bvecs = bio_max_segs(dm_sector_div_up(remaining, - (PAGE_SIZE >> SECTOR_SHIFT))); + (PAGE_SIZE >> SECTOR_SHIFT)) + 1); } bio = bio_alloc_bioset(where->bdev, num_bvecs, opf, GFP_NOIO, |