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nvme: add context annotations for nvme_dev::shutdown_lock

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nvme_setup_io_queues_trylock() conditionally acquires dev->shutdown_lock
using mutex_trylock(). The function returns 0 when the lock is
successfully acquired and a negative error code otherwise.

Annotate the function with __cond_acquires(0, &dev->shutdown_lock) so
that Clang's lock context analysis can track the lock state based on
the return value and verify correct lock usage at call sites.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nilay Shroff <nilay@linux.ibm.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Nilay Shroff 2026-07-13 17:24:10 +05:30 committed by Keith Busch
parent 696d2aeb77
commit 4258bf237e
1 changed files with 1 additions and 0 deletions
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1
drivers/nvme/host/pci.c
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@ -2199,6 +2199,7 @@ static void nvme_init_queue(struct nvme_queue *nvmeq, u16 qid)
* Try getting shutdown_lock while setting up IO queues.
*/
static int nvme_setup_io_queues_trylock(struct nvme_dev *dev)
__cond_acquires(0, &dev->shutdown_lock)
{
/*
* Give up if the lock is being held by nvme_dev_disable.