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authorJianchao Wang <jianchao.w.wang@oracle.com>2018-10-12 13:07:26 +0300
committerJens Axboe <axboe@kernel.dk>2018-10-14 00:42:01 +0300
commit5b202853ffbc54b29f23c4b1b5f3948efab489a2 (patch)
tree115c95fa117934258563e7c6530e94153651a4dc /block/blk-core.c
parent477e19dedc9d3e1f4443a1d4ae00572a988120ea (diff)
downloadlinux-5b202853ffbc54b29f23c4b1b5f3948efab489a2.tar.xz
blk-mq: change gfp flags to GFP_NOIO in blk_mq_realloc_hw_ctxs
blk_mq_realloc_hw_ctxs could be invoked during update hw queues. At the momemt, IO is blocked. Change the gfp flags from GFP_KERNEL to GFP_NOIO to avoid forever hang during memory allocation in blk_mq_realloc_hw_ctxs. Signed-off-by: Jianchao Wang <jianchao.w.wang@oracle.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-core.c')
-rw-r--r--block/blk-core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-core.c b/block/blk-core.c
index f12d2b65e5a5..c5539eed0202 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1163,7 +1163,7 @@ int blk_init_allocated_queue(struct request_queue *q)
{
WARN_ON_ONCE(q->mq_ops);
- q->fq = blk_alloc_flush_queue(q, NUMA_NO_NODE, q->cmd_size);
+ q->fq = blk_alloc_flush_queue(q, NUMA_NO_NODE, q->cmd_size, GFP_KERNEL);
if (!q->fq)
return -ENOMEM;