diff options
| author | Yishai Hadas <yishaih@mellanox.com> | 2012-05-10 22:28:05 +0200 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2012-05-11 20:38:22 +0200 |
| commit | c4870eb874ac16dccef40e1bc7a002c7e9156adc (patch) | |
| tree | 111be5cae7c0180f6e15a06b83dca96da5155491 | |
| parent | IB/core: Use qp->usecnt to track multicast attach/detach (diff) | |
| download | linux-c4870eb874ac16dccef40e1bc7a002c7e9156adc.tar.xz linux-c4870eb874ac16dccef40e1bc7a002c7e9156adc.zip | |
IB/core: Fix mismatch between locked and pinned pages
Commit bc3e53f682d9 ("mm: distinguish between mlocked and pinned
pages") introduced a separate counter for pinned pages and used it in
the IB stack. However, in ib_umem_get() the pinned counter is
incremented, but ib_umem_release() wrongly decrements the locked
counter. Fix this.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Christoph Lameter <cl@linux.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
| -rw-r--r-- | drivers/infiniband/core/umem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c index 71f0c0f7df94..a84112322071 100644 --- a/drivers/infiniband/core/umem.c +++ b/drivers/infiniband/core/umem.c @@ -269,7 +269,7 @@ void ib_umem_release(struct ib_umem *umem) } else down_write(&mm->mmap_sem); - current->mm->locked_vm -= diff; + current->mm->pinned_vm -= diff; up_write(&mm->mmap_sem); mmput(mm); kfree(umem); |