summaryrefslogtreecommitdiff
path: root/fs
diff options
context:
space:
mode:
authorChuck Ebbert <cebbert@redhat.com>2010-01-30 20:28:19 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2010-02-09 04:50:58 -0800
commit0ae2b7de3957a477ec0f332c4da5633499b4d3aa (patch)
treea5e57a8f53adaf86fe2c45feadf8db39e2571248 /fs
parent964814800330216ded04e5a9a21f95d7998dfd62 (diff)
block: fix bugs in bio-integrity mempool usage
commit 9e9432c267e4047db98b9d4fba95099c6effcef9 upstream. Fix two bugs in the bio integrity code: use_bip_pool() always returns 0 because it checks against the wrong limit, causing the mempool to be used only when regular allocation fails. When the mempool is used as a fallback we don't free the data properly. Signed-Off-By: Chuck Ebbert <cebbert@redhat.com> Acked-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs')
-rw-r--r--fs/bio-integrity.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c
index 49a34e7f7306..a16f29e888cd 100644
--- a/fs/bio-integrity.c
+++ b/fs/bio-integrity.c
@@ -61,7 +61,7 @@ static inline unsigned int vecs_to_idx(unsigned int nr)
static inline int use_bip_pool(unsigned int idx)
{
- if (idx == BIOVEC_NR_POOLS)
+ if (idx == BIOVEC_MAX_IDX)
return 1;
return 0;
@@ -95,6 +95,7 @@ struct bio_integrity_payload *bio_integrity_alloc_bioset(struct bio *bio,
/* Use mempool if lower order alloc failed or max vecs were requested */
if (bip == NULL) {
+ idx = BIOVEC_MAX_IDX; /* so we free the payload properly later */
bip = mempool_alloc(bs->bio_integrity_pool, gfp_mask);
if (unlikely(bip == NULL)) {