diff options
| author | Yishai Hadas <yishaih@mellanox.com> | 2012-05-10 23:28:05 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-01 15:15:43 +0800 |
| commit | 84cee24be425e540821da23ccb00f810735f5745 (patch) | |
| tree | 4d89378be59218ecadac462f35208eea1d71cef6 /drivers/infiniband | |
| parent | 77c5da9f6f487c3c86ab5b520f3f680bef1c3487 (diff) | |
IB/core: Fix mismatch between locked and pinned pages
commit c4870eb874ac16dccef40e1bc7a002c7e9156adc upstream.
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>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/infiniband')
| -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 71f0c0f7df9..a8411232207 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); |