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| author | Jianchao Wang <jianchao.w.wang@oracle.com> | 2018-10-12 18:07:26 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-10-13 15:42:01 -0600 |
| commit | 5b202853ffbc54b29f23c4b1b5f3948efab489a2 (patch) | |
| tree | 115c95fa117934258563e7c6530e94153651a4dc /block/blk.h | |
| parent | 477e19dedc9d3e1f4443a1d4ae00572a988120ea (diff) | |
| download | lwn-5b202853ffbc54b29f23c4b1b5f3948efab489a2.tar.gz lwn-5b202853ffbc54b29f23c4b1b5f3948efab489a2.zip | |
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.h')
| -rw-r--r-- | block/blk.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk.h b/block/blk.h index 58c030f727e9..3d2aecba96a4 100644 --- a/block/blk.h +++ b/block/blk.h @@ -125,7 +125,7 @@ static inline void __blk_get_queue(struct request_queue *q) } struct blk_flush_queue *blk_alloc_flush_queue(struct request_queue *q, - int node, int cmd_size); + int node, int cmd_size, gfp_t flags); void blk_free_flush_queue(struct blk_flush_queue *q); int blk_init_rl(struct request_list *rl, struct request_queue *q, |