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(parent: 75448f4) | patch
blk-mq: change gfp flags to GFP_NOIO in blk_mq_realloc_hw_ctxs
authorJianchao Wang <jianchao.w.wang@oracle.com>
Fri, 12 Oct 2018 10:07:26 +0000 (18:07 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 1 Oct 2019 06:26:10 +0000 (08:26 +0200)
commit313efb253d03d7b5dc3dee1d25098133fc8b12a5
tree770e4b2a6b975f7834f4adf70995dbfc950abe46tree | snapshot
parent75448f40b9f6c0fd6d6afdf9101fbb2697fb5608commit | diff
blk-mq: change gfp flags to GFP_NOIO in blk_mq_realloc_hw_ctxs

[ Upstream commit 5b202853ffbc54b29f23c4b1b5f3948efab489a2 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
block/blk-core.c diff | blob | blame | history
block/blk-flush.c diff | blob | blame | history
block/blk-mq.c diff | blob | blame | history
block/blk.h diff | blob | blame | history
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