Message ID | 20180526102735.31404-7-hch@lst.de (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Don't we already have this? Or is it a re-send? It looks so awefully familiar to me...
Anyways,
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
On Mon, May 28, 2018 at 08:36:56AM +0200, Johannes Thumshirn wrote:
> Don't we already have this? Or is it a re-send? It looks so awefully familiar to me...
It was part of my ANA series, like many changes in this series.
diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c index 800aaf96ddcd..55c4bc693aa2 100644 --- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -57,6 +57,13 @@ u16 nvmet_copy_from_sgl(struct nvmet_req *req, off_t off, void *buf, size_t len) return 0; } +u16 nvmet_zero_sgl(struct nvmet_req *req, off_t off, size_t len) +{ + if (sg_zero_buffer(req->sg, req->sg_cnt, len, off) != len) + return NVME_SC_SGL_INVALID_DATA | NVME_SC_DNR; + return 0; +} + static unsigned int nvmet_max_nsid(struct nvmet_subsys *subsys) { struct nvmet_ns *ns; diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h index 2d09afcfe505..a4e14eb15d4e 100644 --- a/drivers/nvme/target/nvmet.h +++ b/drivers/nvme/target/nvmet.h @@ -330,6 +330,7 @@ u16 nvmet_copy_to_sgl(struct nvmet_req *req, off_t off, const void *buf, size_t len); u16 nvmet_copy_from_sgl(struct nvmet_req *req, off_t off, void *buf, size_t len); +u16 nvmet_zero_sgl(struct nvmet_req *req, off_t off, size_t len); u32 nvmet_get_log_page_len(struct nvme_command *cmd);
Zeroes the SGL in the payload. Signed-off-by: Christoph Hellwig <hch@lst.de> --- drivers/nvme/target/core.c | 7 +++++++ drivers/nvme/target/nvmet.h | 1 + 2 files changed, 8 insertions(+)