linux-kernel - [PATCH] fs/bio: bio_alloc_bioset: pass right object ptr to mempool

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Message-ID: <3d7ff8e60902152015i1245f7byab20b9eef9425a84@mail.gmail.com>
Date:	Sun, 15 Feb 2009 20:15:20 -0800
From:	Subhash Peddamallu <subhash.peddamallu@...il.com>
To:	axboe@...nel.dk
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] fs/bio: bio_alloc_bioset: pass right object ptr to 
	mempool_free

When freeing from bio pool use right ptr to account for bs->front_pad,
instead of bio ptr,

Signed-off-by: Subhash Peddamallu <subhash.peddamallu@...il.com>
---
 fs/bio.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/bio.c b/fs/bio.c
index 062299a..72ab251 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -302,9 +302,10 @@ void bio_init(struct bio *bio)
 struct bio *bio_alloc_bioset(gfp_t gfp_mask, int nr_iovecs, struct bio_set *bs)
 {
 	struct bio *bio = NULL;
+	void *p;

 	if (bs) {
-		void *p = mempool_alloc(bs->bio_pool, gfp_mask);
+		p = mempool_alloc(bs->bio_pool, gfp_mask);

 		if (p)
 			bio = p + bs->front_pad;
@@ -329,7 +330,7 @@ struct bio *bio_alloc_bioset(gfp_t gfp_mask, int
nr_iovecs, struct bio_set *bs)
 			}
 			if (unlikely(!bvl)) {
 				if (bs)
-					mempool_free(bio, bs->bio_pool);
+					mempool_free(p, bs->bio_pool);
 				else
 					kfree(bio);
 				bio = NULL;
-- 
1.5.6.3
--
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