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| /openbmc/linux/drivers/nvme/target/ |
| H A D | io-cmd-file.c | 02db9954 Wed Mar 27 04:07:22 CDT 2019 Ming Lei <ming.lei@redhat.com> nvmet: fix building bvec from sg list
There are two mistakes for building bvec from sg list for file
backed ns:
- use request data length to compute number of io vector, this way
doesn't consider sg->offset, and the result may be smaller than required
io vectors
- bvec->bv_len isn't capped by sg->length
This patch fixes this issue by building bvec from sg directly, given
the whole IO stack is ready for multi-page bvec.
Reported-by: Yi Zhang <yi.zhang@redhat.com>
Fixes: 3a85a5de29ea ("nvme-loop: add a NVMe loopback host driver")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
02db9954 Wed Mar 27 04:07:22 CDT 2019 Ming Lei <ming.lei@redhat.com> nvmet: fix building bvec from sg list
There are two mistakes for building bvec from sg list for file
backed ns:
- use request data length to compute number of io vector, this way
doesn't consider sg->offset, and the result may be smaller than required
io vectors
- bvec->bv_len isn't capped by sg->length
This patch fixes this issue by building bvec from sg directly, given
the whole IO stack is ready for multi-page bvec.
Reported-by: Yi Zhang <yi.zhang@redhat.com>
Fixes: 3a85a5de29ea ("nvme-loop: add a NVMe loopback host driver")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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