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authorMike Christie <mchristi@redhat.com>2016-02-24 13:56:33 -0600
committerNicholas Bellinger <nab@linux-iscsi.org>2016-03-10 21:48:53 -0800
commit07b6319687026bdac90a0bb9eeb0509f1ff27179 (patch)
tree05e7f5b5e9046c813b7d118a5542d83b33240725 /include/target
parente3416ab2d156ac0f0a3d9e55bcdff69d109ba403 (diff)
downloadlinux-stericsson-07b6319687026bdac90a0bb9eeb0509f1ff27179.tar.gz
target/iblock: pass WRITE_SAME to device if possible
This patch has iblock pass the WRITE_SAME command to the device for offloading if possible. It is similar to what is done for UNMAP/discards, except that we export a large max write same value to the initiator, and then rely on the block layer to break it up into multiple requests if it cannot fit into one. v2. - Drop file backend changes and move helper function to iblock backend. Signed-off-by: Mike Christie <mchristi@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'include/target')
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