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authorLinus Torvalds <torvalds@linux-foundation.org>2008-12-30 17:20:05 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2008-12-30 17:20:05 -0800
commit1dff81f20cd55ffa5a8ee984da70ce0b99d29606 (patch)
tree06eb07bda250abfa8a78c3141db56862c8c7cf98 /mm
parent179475a3b46f86e2d06f83e2312218ac3f0cf3a7 (diff)
parentd3f761104b097738932afcc310fbbbbfb007ef92 (diff)
downloadlinux-1dff81f20cd55ffa5a8ee984da70ce0b99d29606.tar.bz2
Merge branch 'for-2.6.29' of git://git.kernel.dk/linux-2.6-block
* 'for-2.6.29' of git://git.kernel.dk/linux-2.6-block: (43 commits) bio: get rid of bio_vec clearing bounce: don't rely on a zeroed bio_vec list cciss: simplify parameters to deregister_disk function cfq-iosched: fix race between exiting queue and exiting task loop: Do not call loop_unplug for not configured loop device. loop: Flush possible running bios when loop device is released. alpha: remove dead BIO_VMERGE_BOUNDARY Get rid of CONFIG_LSF block: make blk_softirq_init() static block: use min_not_zero in blk_queue_stack_limits block: add one-hit cache for disk partition lookup cfq-iosched: remove limit of dispatch depth of max 4 times quantum nbd: tell the block layer that it is not a rotational device block: get rid of elevator_t typedef aio: make the lookup_ioctx() lockless bio: add support for inlining a number of bio_vecs inside the bio bio: allow individual slabs in the bio_set bio: move the slab pointer inside the bio_set bio: only mempool back the largest bio_vec slab cache block: don't use plugging on SSD devices ...
Diffstat (limited to 'mm')
-rw-r--r--mm/bounce.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/mm/bounce.c b/mm/bounce.c
index bf0cf7c8387b..e590272fe7a8 100644
--- a/mm/bounce.c
+++ b/mm/bounce.c
@@ -198,8 +198,13 @@ static void __blk_queue_bounce(struct request_queue *q, struct bio **bio_orig,
/*
* irk, bounce it
*/
- if (!bio)
- bio = bio_alloc(GFP_NOIO, (*bio_orig)->bi_vcnt);
+ if (!bio) {
+ unsigned int cnt = (*bio_orig)->bi_vcnt;
+
+ bio = bio_alloc(GFP_NOIO, cnt);
+ memset(bio->bi_io_vec, 0, cnt * sizeof(struct bio_vec));
+ }
+
to = bio->bi_io_vec + i;