forked from Minki/linux
97868c8905
This patch fixes a bug in transport_do_task_sg_chain() used by HW target mode modules with sg_chain() to provide a single sg_next() walkable memory layout for use with pci_map_sg() and friends. This patch addresses an issue with mapping multiple small block max_sector tasks across multiple struct se_task->task_sg[] mappings for HW target mode operation. This was causing OOPs with (cmd->t_task->t_tasks_no > 1) I/O traffic for HW target drivers using transport_do_task_sg_chain(), and has been tested so far with tcm_fc(openfcoe), tcm_qla2xxx, and ib_srpt fabrics with t_tasks_no > 1 IBLOCK backends using a smaller max_sectors to trigger the original issue. Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Acked-by: Kiran Patil <kiran.patil@intel.com> Cc: stable@kernel.org Signed-off-by: James Bottomley <jbottomley@parallels.com> |
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.. | ||
loopback | ||
tcm_fc | ||
Kconfig | ||
Makefile | ||
target_core_alua.c | ||
target_core_alua.h | ||
target_core_cdb.c | ||
target_core_configfs.c | ||
target_core_device.c | ||
target_core_fabric_configfs.c | ||
target_core_fabric_lib.c | ||
target_core_file.c | ||
target_core_file.h | ||
target_core_hba.c | ||
target_core_hba.h | ||
target_core_iblock.c | ||
target_core_iblock.h | ||
target_core_pr.c | ||
target_core_pr.h | ||
target_core_pscsi.c | ||
target_core_pscsi.h | ||
target_core_rd.c | ||
target_core_rd.h | ||
target_core_scdb.c | ||
target_core_scdb.h | ||
target_core_stat.c | ||
target_core_stat.h | ||
target_core_tmr.c | ||
target_core_tpg.c | ||
target_core_transport.c | ||
target_core_ua.c | ||
target_core_ua.h |