linux-yocto/drivers/nvme
Christoph Hellwig 1e1a9cecfa block: force noio scope in blk_mq_freeze_queue
When block drivers or the core block code perform allocations with a
frozen queue, this could try to recurse into the block device to
reclaim memory and deadlock.  Thus all allocations done by a process
that froze a queue need to be done without __GFP_IO and __GFP_FS.
Instead of tying to track all of them down, force a noio scope as
part of freezing the queue.

Note that nvme is a bit of a mess here due to the non-owner freezes,
and they will be addressed separately.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20250131120352.1315351-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-01-31 07:20:08 -07:00
..
common move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
host block: force noio scope in blk_mq_freeze_queue 2025-01-31 07:20:08 -07:00
target for-6.14/block-20250118 2025-01-20 19:38:46 -08:00
Kconfig
Makefile nvme: common: make keyring and auth separate modules 2023-11-07 10:05:15 -08:00