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authorIngo Molnar <mingo@elte.hu>2009-03-26 20:29:40 +0300
committerIngo Molnar <mingo@elte.hu>2009-03-26 20:29:40 +0300
commit5a54bd1307471c1cd0521402fe65e2057edcab2f (patch)
tree25fb6a543db4ccc11b6d5662ed2e7facfce39ae7 /drivers/md/dm-io.c
parentf9f35677d81adb0feedcd6e0e661784805c8facd (diff)
parent8e0ee43bc2c3e19db56a4adaa9a9b04ce885cd84 (diff)
downloadlinux-5a54bd1307471c1cd0521402fe65e2057edcab2f.tar.xz
Merge commit 'v2.6.29' into core/header-fixes
Diffstat (limited to 'drivers/md/dm-io.c')
-rw-r--r--drivers/md/dm-io.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index a34338567a2a..36e2b5e46a6b 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