kernel_optimize_test/drivers/target
Nicholas Bellinger d2bdbee0d9 target/iblock: Fix WCE=1 + DPOFUA=1 backend WRITE regression
This patch fixes a regression bug introduced in v3.9-rc1 where if the
underlying struct block_device for a IBLOCK backend is configured with
WCE=1 + DPOFUA=1 settings, the rw = WRITE assignment no longer occurs
in iblock_execute_rw(), and rw = 0 is passed to iblock_submit_bios()
in effect causing a READ bio operation to occur.

The offending commit is:

commit d0c8b259f8
Author: Nicholas Bellinger <nab@linux-iscsi.org>
Date:   Tue Jan 29 22:10:06 2013 -0800

    target/iblock: Use backend REQ_FLUSH hint for WriteCacheEnabled status

Note the WCE=1 + DPOFUA=0, WCE=0 + DPOFUA=1, and WCE=0 + DPOFUA=0 cases
are not affected by this regression bug.

Reported-by: Chris Boot <bootc@bootc.net>
Tested-by: Chris Boot <bootc@bootc.net>
Reported-by: Hannes Reinecke <hare@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-05-15 01:46:34 -07:00
..
iscsi iscsi-target: Fix typos in RDMAEXTENSIONS macro usage 2013-05-11 16:25:51 -07:00
loopback
sbp Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2013-03-02 11:43:27 -08:00
tcm_fc tcm_fc: Check for aborted sequence 2013-04-25 01:05:28 -07:00
Kconfig
Makefile
target_core_alua.c target: Fix incorrect fallthrough of ALUA Standby/Offline/Transition CDBs 2013-04-11 01:48:49 -07:00
target_core_alua.h
target_core_configfs.c target: Have dev/enable show if TCM device is configured 2013-05-03 16:46:02 -07:00
target_core_device.c target: Remove unused struct members in se_dev_entry 2013-05-03 16:42:18 -07:00
target_core_fabric_configfs.c target: Add missing mapped_lun bounds checking during make_mappedlun setup 2013-02-18 18:47:28 -08:00
target_core_fabric_lib.c
target_core_file.c target: Use FD_MAX_SECTORS/FD_BLOCKSIZE for blockdevs using fileio 2013-05-03 16:44:24 -07:00
target_core_file.h target/file: Bump FD_MAX_SECTORS to 2048 to handle 1M sized I/Os 2013-03-19 17:24:28 -07:00
target_core_hba.c
target_core_iblock.c target/iblock: Fix WCE=1 + DPOFUA=1 backend WRITE regression 2013-05-15 01:46:34 -07:00
target_core_iblock.h
target_core_internal.h target: Remove unused struct members in se_dev_entry 2013-05-03 16:42:18 -07:00
target_core_pr.c target: writev() on single-element vector is pointless 2013-02-26 02:46:11 -05:00
target_core_pr.h
target_core_pscsi.c target/pscsi: Reject cross page boundary case in pscsi_map_sg 2013-03-19 17:31:14 -07:00
target_core_pscsi.h
target_core_rd.c target/rd: Add ramdisk bit for NULLIO operation 2013-05-11 16:22:39 -07:00
target_core_rd.h target/rd: Add ramdisk bit for NULLIO operation 2013-05-11 16:22:39 -07:00
target_core_sbc.c target: Add sbc_execute_unmap() helper 2013-04-25 01:05:24 -07:00
target_core_spc.c target: Fix parameter list length checking in MODE SELECT 2013-02-13 12:16:11 -08:00
target_core_stat.c
target_core_tmr.c target: Remove useless if statement 2013-02-13 11:27:22 -08:00
target_core_tpg.c target: fix possible memory leak in core_tpg_register() 2013-03-18 12:45:52 -07:00
target_core_transport.c target: Remove unused struct members in se_dev_entry 2013-05-03 16:42:18 -07:00
target_core_ua.c
target_core_ua.h