drbd: change some GFP_KERNEL to GFP_NOIO
Bitmap IO may happend in the context of an application write,
in the generic block IO path. We need to use GFP_NOIO.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
index e5e756d..9611db4 100644
--- a/drivers/block/drbd/drbd_bitmap.c
+++ b/drivers/block/drbd/drbd_bitmap.c
@@ -955,7 +955,7 @@
static void bm_page_io_async(struct bm_aio_ctx *ctx, int page_nr, int rw) __must_hold(local)
{
/* we are process context. we always get a bio */
- struct bio *bio = bio_alloc(GFP_KERNEL, 1);
+ struct bio *bio = bio_alloc(GFP_NOIO, 1);
struct drbd_conf *mdev = ctx->mdev;
struct drbd_bitmap *b = mdev->bitmap;
struct page *page;
@@ -1029,7 +1029,7 @@
* as we submit copies of pages anyways.
*/
- ctx = kmalloc(sizeof(struct bm_aio_ctx), GFP_KERNEL);
+ ctx = kmalloc(sizeof(struct bm_aio_ctx), GFP_NOIO);
if (!ctx)
return -ENOMEM;
@@ -1175,7 +1175,7 @@
return 0;
}
- ctx = kmalloc(sizeof(struct bm_aio_ctx), GFP_KERNEL);
+ ctx = kmalloc(sizeof(struct bm_aio_ctx), GFP_NOIO);
if (!ctx)
return -ENOMEM;