linux-sg2042/drivers/target/iscsi
Nicholas Bellinger 40b054970a iscsi-target: Fix sendpage breakage with proper padding+DataDigest iovec offsets
This patch fixes a bug in the iscsit_fe_sendpage_sg() transmit codepath that
was originally introduced with the v3.1 iscsi-target merge that incorrectly
uses hardcoded cmd->iov_data_count values to determine cmd->iov_data[] offsets
for extra outgoing padding and DataDigest payload vectors.

This code is obviously incorrect for the DataDigest enabled case with sendpage
offload, and this fix ensures correct operation for padding + DataDigest,
padding only, and DataDigest only cases.  The bug was introduced during a
pre-merge change in iscsit_fe_sendpage_sg() to natively use struct scatterlist
instead of the legacy v3.0 struct se_mem logic.

Cc: Andy Grover <agrover@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-09-16 23:47:07 +00:00
..
Kconfig target: iscsi_target depends on NET 2011-07-28 20:16:18 +00:00
Makefile
iscsi_target.c iscsi-target: remove duplicate return 2011-08-22 19:26:18 +00:00
iscsi_target.h
iscsi_target_auth.c
iscsi_target_auth.h
iscsi_target_configfs.c target: Use ERR_CAST inlined function 2011-08-22 19:26:15 +00:00
iscsi_target_configfs.h
iscsi_target_core.h
iscsi_target_datain_values.c
iscsi_target_datain_values.h
iscsi_target_device.c
iscsi_target_device.h
iscsi_target_erl0.c
iscsi_target_erl0.h
iscsi_target_erl1.c iscsi-target: forever loop bug in iscsit_attach_ooo_cmdsn() 2011-08-22 19:26:19 +00:00
iscsi_target_erl1.h
iscsi_target_erl2.c
iscsi_target_erl2.h
iscsi_target_login.c iscsi-target: Implement iSCSI target IPv6 address printing. 2011-08-22 19:26:29 +00:00
iscsi_target_login.h
iscsi_target_nego.c
iscsi_target_nego.h
iscsi_target_nodeattrib.c
iscsi_target_nodeattrib.h
iscsi_target_parameters.c iscsi-target: Disable markers + remove dangerous local scope array usage 2011-09-16 19:37:18 +00:00
iscsi_target_parameters.h
iscsi_target_seq_pdu_list.c
iscsi_target_seq_pdu_list.h
iscsi_target_stat.c
iscsi_target_stat.h
iscsi_target_tmr.c
iscsi_target_tmr.h
iscsi_target_tpg.c
iscsi_target_tpg.h
iscsi_target_tq.c
iscsi_target_tq.h
iscsi_target_util.c iscsi-target: Fix sendpage breakage with proper padding+DataDigest iovec offsets 2011-09-16 23:47:07 +00:00
iscsi_target_util.h