bcache: Allocate bounce buffers with GFP_NOWAIT
There's no point in blocking on these allocations, since our fallback paths will
probably go faster than blocking.
Change-Id: I733ca202c25cb36bde02607a0a60552229a4241c
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index e538d45..39c7f5b 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -421,7 +421,7 @@
SET_PTR_OFFSET(&k.key, 0, PTR_OFFSET(&k.key, 0) +
bset_sector_offset(&b->keys, i));
- if (!bio_alloc_pages(b->bio, GFP_NOIO)) {
+ if (!bio_alloc_pages(b->bio, __GFP_NOWARN|GFP_NOWAIT)) {
int j;
struct bio_vec *bv;
void *base = (void *) ((unsigned long) i & ~(PAGE_SIZE - 1));