diff options
Diffstat (limited to 'fs/aio.c')
| -rw-r--r-- | fs/aio.c | 30 |
1 files changed, 15 insertions, 15 deletions
@@ -160,7 +160,7 @@ static int aio_setup_ring(struct kioctx *ctx) info->nr = nr_events; /* trusted copy */ - ring = kmap_atomic(info->ring_pages[0], KM_USER0); + ring = kmap_atomic(info->ring_pages[0]); ring->nr = nr_events; /* user copy */ ring->id = ctx->user_id; ring->head = ring->tail = 0; @@ -168,32 +168,32 @@ static int aio_setup_ring(struct kioctx *ctx) ring->compat_features = AIO_RING_COMPAT_FEATURES; ring->incompat_features = AIO_RING_INCOMPAT_FEATURES; ring->header_length = sizeof(struct aio_ring); - kunmap_atomic(ring, KM_USER0); + kunmap_atomic(ring); return 0; } /* aio_ring_event: returns a pointer to the event at the given index from - * kmap_atomic(, km). Release the pointer with put_aio_ring_event(); + * kmap_atomic(). Release the pointer with put_aio_ring_event(); */ #define AIO_EVENTS_PER_PAGE (PAGE_SIZE / sizeof(struct io_event)) #define AIO_EVENTS_FIRST_PAGE ((PAGE_SIZE - sizeof(struct aio_ring)) / sizeof(struct io_event)) #define AIO_EVENTS_OFFSET (AIO_EVENTS_PER_PAGE - AIO_EVENTS_FIRST_PAGE) -#define aio_ring_event(info, nr, km) ({ \ +#define aio_ring_event(info, nr) ({ \ unsigned pos = (nr) + AIO_EVENTS_OFFSET; \ struct io_event *__event; \ __event = kmap_atomic( \ - (info)->ring_pages[pos / AIO_EVENTS_PER_PAGE], km); \ + (info)->ring_pages[pos / AIO_EVENTS_PER_PAGE]); \ __event += pos % AIO_EVENTS_PER_PAGE; \ __event; \ }) -#define put_aio_ring_event(event, km) do { \ +#define put_aio_ring_event(event) do { \ struct io_event *__event = (event); \ (void)__event; \ - kunmap_atomic((void *)((unsigned long)__event & PAGE_MASK), km); \ + kunmap_atomic((void *)((unsigned long)__event & PAGE_MASK)); \ } while(0) static void ctx_rcu_free(struct rcu_head *head) @@ -1019,10 +1019,10 @@ int aio_complete(struct kiocb *iocb, long res, long res2) if (kiocbIsCancelled(iocb)) goto put_rq; - ring = kmap_atomic(info->ring_pages[0], KM_IRQ1); + ring = kmap_atomic(info->ring_pages[0]); tail = info->tail; - event = aio_ring_event(info, tail, KM_IRQ0); + event = aio_ring_event(info, tail); if (++tail >= info->nr) tail = 0; @@ -1043,8 +1043,8 @@ int aio_complete(struct kiocb *iocb, long res, long res2) info->tail = tail; ring->tail = tail; - put_aio_ring_event(event, KM_IRQ0); - kunmap_atomic(ring, KM_IRQ1); + put_aio_ring_event(event); + kunmap_atomic(ring); pr_debug("added to ring %p at [%lu]\n", iocb, tail); @@ -1089,7 +1089,7 @@ static int aio_read_evt(struct kioctx *ioctx, struct io_event *ent) unsigned long head; int ret = 0; - ring = kmap_atomic(info->ring_pages[0], KM_USER0); + ring = kmap_atomic(info->ring_pages[0]); dprintk("in aio_read_evt h%lu t%lu m%lu\n", (unsigned long)ring->head, (unsigned long)ring->tail, (unsigned long)ring->nr); @@ -1101,18 +1101,18 @@ static int aio_read_evt(struct kioctx *ioctx, struct io_event *ent) head = ring->head % info->nr; if (head != ring->tail) { - struct io_event *evp = aio_ring_event(info, head, KM_USER1); + struct io_event *evp = aio_ring_event(info, head); *ent = *evp; head = (head + 1) % info->nr; smp_mb(); /* finish reading the event before updatng the head */ ring->head = head; ret = 1; - put_aio_ring_event(evp, KM_USER1); + put_aio_ring_event(evp); } spin_unlock(&info->ring_lock); out: - kunmap_atomic(ring, KM_USER0); + kunmap_atomic(ring); dprintk("leaving aio_read_evt: %d h%lu t%lu\n", ret, (unsigned long)ring->head, (unsigned long)ring->tail); return ret; |