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(parent: ccc1003) | patch
nvme-pci: don't simple map sgl when sgls are disabled
authorNiklas Cassel <niklas.cassel@wdc.com>
Fri, 9 Apr 2021 18:12:55 +0000 (20:12 +0200)
committerChristoph Hellwig <hch@lst.de>
Thu, 15 Apr 2021 06:12:53 +0000 (08:12 +0200)
commite51183be1fa96dc6d3cd11b3c25a0f595807315e
tree12971bc915aaf593ccd5c8bd84d8fc4e18786f06tree | snapshot
parentccc1003b5b2ba9404b390f3183979f81136a3f1fcommit | diff
nvme-pci: don't simple map sgl when sgls are disabled

According to the module parameter description for sgl_threshold,
a value of 0 means that SGLs are disabled.

If SGLs are disabled, we should respect that, even for the case
where the request is made up of a single physical segment.

Fixes: 297910571f08 ("nvme-pci: optimize mapping single segment requests using SGLs")
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
drivers/nvme/host/pci.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)