Breno LeitaoandGreg Kroah-Hartman 1e20e4ff3a nvme/multipath: Fix RCU list traversal to use SRCU primitive ...

[ Upstream commit 5dd18f09ce ]

The code currently uses list_for_each_entry_rcu() while holding an SRCU
lock, triggering false positive warnings with CONFIG_PROVE_RCU=y
enabled:

	drivers/nvme/host/multipath.c:168 RCU-list traversed in non-reader section!!
	drivers/nvme/host/multipath.c:227 RCU-list traversed in non-reader section!!
	drivers/nvme/host/multipath.c:260 RCU-list traversed in non-reader section!!

While the list is properly protected by SRCU lock, the code uses the
wrong list traversal primitive. Replace list_for_each_entry_rcu() with
list_for_each_entry_srcu() to correctly indicate SRCU-based protection
and eliminate the false warning.

Signed-off-by: Breno Leitao <leitao@debian.org>
Fixes: be647e2c76 ("nvme: use srcu for iterating namespace list")
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-12-09 10:32:56 +01:00

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common

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host

nvme/multipath: Fix RCU list traversal to use SRCU primitive

2024-12-09 10:32:56 +01:00

target

nvme-loop: flush off pending I/O while shutting down loop controller

2024-11-17 15:08:57 +01:00

Kconfig

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Makefile

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