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authorDavid Rientjes <rientjes@google.com>2015-03-24 16:22:32 -0700
committerJens Axboe <axboe@fb.com>2015-03-24 20:00:16 -0600
commit23fe8f8b1101ec77befc995ab15fad82d9d91d16 (patch)
treedd198fb89b2f677bd8bc3d085579827fded8237b /drivers/block/drbd/drbd_req.c
parentea7618ecb244b36bf6e1ba00b7de801dc1e9a951 (diff)
downloadlinux-23fe8f8b1101ec77befc995ab15fad82d9d91d16.tar.gz
linux-23fe8f8b1101ec77befc995ab15fad82d9d91d16.tar.xz
block, drbd: fix drbd_req_new() initialization
mempool_alloc() does not support __GFP_ZERO since elements may come from memory that has already been released by mempool_free(). Remove __GFP_ZERO from mempool_alloc() in drbd_req_new() and properly initialize it to 0. Cc: Lars Ellenberg <drbd-dev@lists.linbit.com> Cc: Jens Axboe <axboe@fb.com> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/block/drbd/drbd_req.c')
-rw-r--r--drivers/block/drbd/drbd_req.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 34f2f0ba409b..3907202fb9d9 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -52,9 +52,10 @@ static struct drbd_request *drbd_req_new(struct drbd_device *device,
{
struct drbd_request *req;
- req = mempool_alloc(drbd_request_mempool, GFP_NOIO | __GFP_ZERO);
+ req = mempool_alloc(drbd_request_mempool, GFP_NOIO);
if (!req)
return NULL;
+ memset(req, 0, sizeof(*req));
drbd_req_make_private_bio(req, bio_src);
req->rq_state = bio_data_dir(bio_src) == WRITE ? RQ_WRITE : 0;