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| /openbmc/linux/drivers/block/aoe/ |
| H A D | aoecmd.c | diff 8a6f7bbf29d1d61d3ff18f0a0feead9f287c9b14 Mon Nov 16 08:57:02 CST 2020 Christoph Hellwig <hch@lst.de> aoe: don't call set_capacity from irq context
Updating the block device size from irq context can lead to torn
writes of the 64-bit value, and prevents us from using normal
process context locking primitives to serialize access to the 64-bit
nr_sectors value. Defer the set_capacity to the already existing
workqueue handler, where it can be merged with the update of the
block device size by using set_capacity_and_notify. As an extra
bonus this also adds proper uevent notifications for the resize.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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