linux/drivers/vhost, branch v3.11

Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

2013-07-23T21:38:20Z

Pull vhost fixes from Michael Tsirkin: "vhost: more fixes for 3.11 This includes some fixes for vhost net and scsi drivers. The test module has already been reworked to avoid rcu usage, but the necessary core changes are missing, we fixed this. Unlikely to affect any real-world users, but it's early in the cycle so, let's merge them" (It was earlier when Michael originally sent the email, but it somehot got missed in the flood, so here it is after -rc2) * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: vhost: Remove custom vhost rcu usage vhost-scsi: Always access vq->private_data under vq mutex vhost-net: Always access vq->private_data under vq mutex

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending

2013-07-11T19:57:19Z

Pull SCSI target updates from Nicholas Bellinger: "Lots of activity this round on performance improvements in target-core while benchmarking the prototype scsi-mq initiator code with vhost-scsi fabric ports, along with a number of iscsi/iser-target improvements and hardening fixes for exception path cases post v3.10 merge. The highlights include: - Make persistent reservations APTPL buffer allocated on-demand, and drop per t10_reservation buffer. (grover) - Make virtual LUN=0 a NULLIO device, and skip allocation of NULLIO device pages (grover) - Add transport_cmd_check_stop write_pending bit to avoid extra access of ->t_state_lock is WRITE I/O submission fast-path. (nab) - Drop unnecessary CMD_T_DEV_ACTIVE check from transport_lun_remove_cmd to avoid extra access of ->t_state_lock in release fast-path. (nab) - Avoid extra t_state_lock access in __target_execute_cmd fast-path (nab) - Drop unnecessary vhost-scsi wait_for_tasks=true usage + ->t_state_lock access in release fast-path. (nab) - Convert vhost-scsi to use modern se_cmd->cmd_kref TARGET_SCF_ACK_KREF usage (nab) - Add tracepoints for SCSI commands being processed (roland) - Refactoring of iscsi-target handling of ISCSI_OP_NOOP + ISCSI_OP_TEXT to be transport independent (nab) - Add iscsi-target SendTargets=$IQN support for in-band discovery (nab) - Add iser-target support for in-band discovery (nab + Or) - Add iscsi-target demo-mode TPG authentication context support (nab) - Fix isert_put_reject payload buffer post (nab) - Fix iscsit_add_reject* usage for iser (nab) - Fix iscsit_sequence_cmd reject handling for iser (nab) - Fix ISCSI_OP_SCSI_TMFUNC handling for iser (nab) - Fix session reset bug with RDMA_CM_EVENT_DISCONNECTED (nab) The last five iscsi/iser-target items are CC'ed to stable, as they do address issues present in v3.10 code. They are certainly larger than I'd like for stable patch set, but are important to ensure proper REJECT exception handling in iser-target for 3.10.y" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (51 commits) iser-target: Ignore non TEXT + LOGOUT opcodes for discovery target: make queue_tm_rsp() return void target: remove unused codes from enum tcm_tmrsp_table iscsi-target: kstrtou* configfs attribute parameter cleanups iscsi-target: Fix tfc_tpg_auth_cit configfs length overflow iscsi-target: Fix tfc_tpg_nacl_auth_cit configfs length overflow iser-target: Add support for ISCSI_OP_TEXT opcode + payload handling iser-target: Rename sense_buf_[dma,len] to pdu_[dma,len] iser-target: Add vendor_err debug output target: Add (obsolete) checking for PMI/LBA fields in READ CAPACITY(10) target: Return correct sense data for IO past the end of a device target: Add tracepoints for SCSI commands being processed iser-target: Fix session reset bug with RDMA_CM_EVENT_DISCONNECTED iscsi-target: Fix ISCSI_OP_SCSI_TMFUNC handling for iser iscsi-target: Fix iscsit_sequence_cmd reject handling for iser iscsi-target: Fix iscsit_add_reject* usage for iser iser-target: Fix isert_put_reject payload buffer post iscsi-target: missing kfree() on error path iscsi-target: Drop left-over iscsi_conn->bad_hdr target: Make core_scsi3_update_and_write_aptpl return sense_reason_t ...

vhost: Remove custom vhost rcu usage

2013-07-11T12:38:40Z

Now, vq->private_data is always accessed under vq mutex. No need to play the vhost rcu trick. Signed-off-by: Asias He Signed-off-by: Michael S. Tsirkin

vhost-scsi: Always access vq->private_data under vq mutex

2013-07-11T12:37:28Z

Signed-off-by: Asias He Signed-off-by: Michael S. Tsirkin

vhost-net: Always access vq->private_data under vq mutex

2013-07-11T12:36:45Z

Signed-off-by: Asias He Signed-off-by: Michael S. Tsirkin

target: make queue_tm_rsp() return void

2013-07-08T01:36:53Z

The return value wasn't checked by any of the callers. Assuming this is correct behaviour, we can simplify some code by not bothering to generate it. nab: Add srpt_queue_data_in() + srpt_queue_tm_rsp() nops around srpt_queue_response() void return Signed-off-by: Joern Engel Signed-off-by: Nicholas Bellinger

vhost/test: update test after vhost cleanups

2013-07-07T15:02:25Z

We changed the type of dev.vqs field, update test module accordingly. Signed-off-by: Michael S. Tsirkin

vhost: Make local function static

2013-07-07T14:34:07Z

$ make C=1 M=drivers/vhost drivers/vhost/net.c:168:5: warning: symbol 'vhost_net_set_ubuf_info' was not declared. Should it be static? drivers/vhost/net.c:194:6: warning: symbol 'vhost_net_vq_reset' was not declared. Should it be static? drivers/vhost/scsi.c:219:6: warning: symbol 'tcm_vhost_done_inflight' was not declared. Should it be static? Signed-off-by: Asias He Signed-off-by: Michael S. Tsirkin

vhost: Make vhost a separate module

2013-07-07T14:33:44Z

Currently, vhost-net and vhost-scsi are sharing the vhost core code. However, vhost-scsi shares the code by including the vhost.c file directly. Making vhost a separate module makes it is easier to share code with other vhost devices. Signed-off-by: Asias He Signed-off-by: Michael S. Tsirkin

vhost-scsi: Rename struct tcm_vhost_cmd tv_cmd to cmd

2013-07-07T11:38:58Z

This way, we use cmd for struct tcm_vhost_cmd and evt for struct tcm_vhost_cmd. Signed-off-by: Asias He Signed-off-by: Michael S. Tsirkin