From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx> Hi folks, This series for-3.8 adds support for proper WRITE_SAME w/ UNMAP=0 emulation for IBLOCK device backends to follow MKP's WRITE_SAME patches that have been merged for v3.7-rc1. Currently it uses a bio_add_page() call for each sector in order to allow scatterlist w/ page offsets to work, as blkdev_issue_write_same() currently assumes underlying hw support + zero page offset. So far it has been tested on target-pending/for-next code with iscsi-target and tcm_loop fabric ports. Please review, --nab Nicholas Bellinger (3): target/sbc: Make WRITE_SAME check differentiate between UNMAP=[1,0] target: Add max_write_same_len device attribute target/iblock: Add WRITE_SAME w/ UNMAP=0 emulation support drivers/target/target_core_configfs.c | 4 ++ drivers/target/target_core_device.c | 11 +++++ drivers/target/target_core_iblock.c | 78 +++++++++++++++++++++++++++++--- drivers/target/target_core_internal.h | 1 + drivers/target/target_core_sbc.c | 19 +++----- drivers/target/target_core_spc.c | 8 +++- include/target/target_core_base.h | 4 ++ 7 files changed, 104 insertions(+), 21 deletions(-) -- 1.7.2.5 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
