From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx> Greetings hch, tejun and Co, These patches are a follow up to the series posted recently for lio-core-2.6.git/lio-4.0 here: [PATCH 0/4] tcm: Add WriteCache + FUA Write support to TCM/FILEIO http://marc.info/?l=linux-scsi&m=128288359913333&w=2 The first and second patch follows hch's recommendation and remove the extra 'flush entire cache of device' struct se_subsystem_api->do_sync_cache() caller from TCM Core in the original commit, and converts transport_generic_synchronize_cache() and FILEIO dependent code to use struct se_subsystem_api->do_sync_cache_range() for *both* the SYNCHRONIZE_CACHE emulation cases of 'per LBA + Number of Blocks Range' flush and 'flush entrire cache of device' op. The third patch in the series adds new support for WriteCache and FUA WRITE emulation into the TCM/IBLOCK subsystem plugin using block/blk-barrier.c:blkdev_issue_flush() w/ BLKDEV_IFL_WAIT flag. Note that since blkdev_issue_flush() does not support a LBA + Range flush, all TCM/IBLOCK SYNCHRONIZE_CACHE and FUA WRITE ops involving a LBA + Range are converted into a global device cache flush op w/ blkdev_issue_flush(). Many thanks again to hch for his guidence in this area, Signed-off-by: Nicholas A. Bellinger <nab@xxxxxxxxxxxxxxx> Nicholas Bellinger (3): tcm/fileio: Remove struct se_subsystem_api->do_sync_cache() usage tcm: Remove struct se_subsystem_api->do_sync_cache() tcm/iblock: Add WriteCache and Forced Unit Access WRITE emulation drivers/target/target_core_file.c | 31 ++++---- drivers/target/target_core_iblock.c | 119 ++++++++++++++++++++++++++++++- drivers/target/target_core_iblock.h | 1 + drivers/target/target_core_transport.c | 21 +----- include/target/target_core_transport.h | 7 -- 5 files changed, 135 insertions(+), 44 deletions(-) -- 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
