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NVMe: Meta-data support in NVME_IOCTL_SUBMIT_IO

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This adds support for namespaces with separate meta-data formats in the
submit io ioctl. The meta-data buffer has to be a contiguous, so such
a buffer is allocated and the mapped user pages are copied to/from this
buffer for write/read commands.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
This commit is contained in:
Keith Busch 2013-04-23 17:23:59 -06:00 • committed by Matthew Wilcox
commit f410c680b5
2 changed files with 68 additions and 4 deletions
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include/linux/nvme.h
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@ -552,6 +552,7 @@ struct nvme_ns {
int ns_id;
int lba_shift;
int ms;
u64 mode_select_num_blocks;
u32 mode_select_block_len;
};