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-rw-r--r--drivers/infiniband/core/umem.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index b4aec5103c99..d40652a80151 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -225,13 +225,15 @@ void ib_umem_release(struct ib_umem *umem)
225 * up here and not be able to take the mmap_sem. In that case 225 * up here and not be able to take the mmap_sem. In that case
226 * we defer the vm_locked accounting to the system workqueue. 226 * we defer the vm_locked accounting to the system workqueue.
227 */ 227 */
228 if (context->closing && !down_write_trylock(&mm->mmap_sem)) { 228 if (context->closing) {
229 INIT_WORK(&umem->work, ib_umem_account); 229 if (!down_write_trylock(&mm->mmap_sem)) {
230 umem->mm = mm; 230 INIT_WORK(&umem->work, ib_umem_account);
231 umem->diff = diff; 231 umem->mm = mm;
232 232 umem->diff = diff;
233 schedule_work(&umem->work); 233
234 return; 234 schedule_work(&umem->work);
235 return;
236 }
235 } else 237 } else
236 down_write(&mm->mmap_sem); 238 down_write(&mm->mmap_sem);
237 239