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authorChuck Ebbert <cebbert@redhat.com>2010-01-30 20:28:19 +0100
committerJens Axboe <jens.axboe@oracle.com>2010-01-30 20:28:19 +0100
commit9e9432c267e4047db98b9d4fba95099c6effcef9 (patch)
tree4e261dd44d4f5129f64696a87d448ad89c106110 /fs/bio-integrity.c
parent1d6165851cd8e3f919d446cd6da35dee44e8837e (diff)
downloadlinux-stericsson-9e9432c267e4047db98b9d4fba95099c6effcef9.tar.gz
block: fix bugs in bio-integrity mempool usage
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>
Diffstat (limited to 'fs/bio-integrity.c')
-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)) {