Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6

[linux-2.6-omap-h63xx.git] / drivers / md / dm-io.c

diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index f14813be4eff88ccdc082b62336690e20b0342cb..36e2b5e46a6b644f0e9902b57b29c0666541d733 100644 (file)
--- 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;