]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
RDMA/hns: Fix deadlock on SRQ async events.
authorChengchang Tang <tangchengchang@huawei.com>
Fri, 12 Apr 2024 09:16:10 +0000 (17:16 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 16 Jun 2024 11:39:30 +0000 (13:39 +0200)
commit4a3be1a0ffe04c085dd7f79be97c91b0c786df3d
tree5934cec81881335c5fa1461826fe0ea135154614
parented159691a29cb0b0f70cc06e4c4be202ba9d3bcb
RDMA/hns: Fix deadlock on SRQ async events.

[ Upstream commit b46494b6f9c19f141114a57729e198698f40af37 ]

xa_lock for SRQ table may be required in AEQ. Use xa_store_irq()/
xa_erase_irq() to avoid deadlock.

Fixes: 81fce6291d99 ("RDMA/hns: Add SRQ asynchronous event support")
Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Link: https://lore.kernel.org/r/20240412091616.370789-5-huangjunxian6@hisilicon.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/infiniband/hw/hns/hns_roce_main.c
drivers/infiniband/hw/hns/hns_roce_srq.c