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linux/block/blk-flush.c
Jianchao Wang 5b202853ff 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>
2018-10-13 15:42:01 -06:00

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