summaryrefslogtreecommitdiffstats
path: root/include/scsi
diff options
context:
space:
mode:
authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2008-03-18 00:15:03 +0900
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-04-07 12:15:45 -0500
commitb1adaf65ba0398c9a1adc8f3a274533165a4df61 (patch)
tree70c6c5944eb978c6eff55eab1e1b1df7049477ec /include/scsi
parent78b4b05db57b04b3ed17dc71259bf1402c04abfa (diff)
downloadop-kernel-dev-b1adaf65ba0398c9a1adc8f3a274533165a4df61.zip
op-kernel-dev-b1adaf65ba0398c9a1adc8f3a274533165a4df61.tar.gz
[SCSI] block: add sg buffer copy helper functions
This patch adds new three helper functions to copy data between an SG list and a linear buffer. - sg_copy_from_buffer copies data from linear buffer to an SG list - sg_copy_to_buffer copies data from an SG list to a linear buffer When the APIs copy data from a linear buffer to an SG list, flush_kernel_dcache_page is called. It's not necessary for everyone but it's a no-op on most architectures and in general the API is not used in performance critical path. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'include/scsi')
0 files changed, 0 insertions, 0 deletions
OpenPOWER on IntegriCloud