diff options
Diffstat (limited to 'drivers/md/dm-io.c')
| -rw-r--r-- | drivers/md/dm-io.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c index a34338567a2..36e2b5e46a6 100644 --- a/drivers/md/dm-io.c +++ b/drivers/md/dm-io.c @@ -292,6 +292,8 @@ static void do_region(int rw, unsigned region, struct dm_io_region *where, (PAGE_SIZE >> SECTOR_SHIFT)); num_bvecs = 1 + min_t(int, bio_get_nr_vecs(where->bdev), num_bvecs); + if (unlikely(num_bvecs > BIO_MAX_PAGES)) + num_bvecs = BIO_MAX_PAGES; bio = bio_alloc_bioset(GFP_NOIO, num_bvecs, io->client->bios); bio->bi_sector = where->sector + (where->count - remaining); bio->bi_bdev = where->bdev; @@ -328,7 +330,7 @@ static void dispatch_io(int rw, unsigned int num_regions, struct dpages old_pages = *dp; if (sync) - rw |= (1 << BIO_RW_SYNC); + rw |= (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG); /* * For multiple regions we need to be careful to rewind |