diff options
Diffstat (limited to 'drivers/infiniband/hw/hfi1/user_pages.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/user_pages.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/hfi1/user_pages.c b/drivers/infiniband/hw/hfi1/user_pages.c index e341e6dcc388..40a6e434190f 100644 --- a/drivers/infiniband/hw/hfi1/user_pages.c +++ b/drivers/infiniband/hw/hfi1/user_pages.c @@ -92,7 +92,7 @@ bool hfi1_can_pin_pages(struct hfi1_devdata *dd, struct mm_struct *mm, size = DIV_ROUND_UP(size, PAGE_SIZE); down_read(&mm->mmap_sem); - pinned = mm->pinned_vm; + pinned = atomic64_read(&mm->pinned_vm); up_read(&mm->mmap_sem); /* First, check the absolute limit against all pinned pages. */ @@ -112,7 +112,7 @@ int hfi1_acquire_user_pages(struct mm_struct *mm, unsigned long vaddr, size_t np return ret; down_write(&mm->mmap_sem); - mm->pinned_vm += ret; + atomic64_add(ret, &mm->pinned_vm); up_write(&mm->mmap_sem); return ret; @@ -131,7 +131,7 @@ void hfi1_release_user_pages(struct mm_struct *mm, struct page **p, if (mm) { /* during close after signal, mm can be NULL */ down_write(&mm->mmap_sem); - mm->pinned_vm -= npages; + atomic64_sub(npages, &mm->pinned_vm); up_write(&mm->mmap_sem); } } |