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bcache: Allocate bounce buffers with GFP_NOWAIT

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There's no point in blocking on these allocations, since our fallback paths will
probably go faster than blocking.

Change-Id: I733ca202c25cb36bde02607a0a60552229a4241c
This commit is contained in:
Kent Overstreet 2014-05-19 08:55:40 -07:00
parent bcf090e004
commit 501d52a90c
2 changed files with 2 additions and 2 deletions
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2
drivers/md/bcache/bset.c
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@ -1182,7 +1182,7 @@ static void __btree_sort(struct btree_keys *b, struct btree_iter *iter,
{
uint64_t start_time;
bool used_mempool = false;
struct bset *out = (void *) __get_free_pages(__GFP_NOWARN|GFP_NOIO,
struct bset *out = (void *) __get_free_pages(__GFP_NOWARN|GFP_NOWAIT,
order);
if (!out) {
struct page *outp;

2
drivers/md/bcache/btree.c
View file

@ -421,7 +421,7 @@ static void do_btree_node_write(struct btree *b)
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));