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2015-02-14target: Fail UNMAP when emulate_tpu=0Nicholas Bellinger1-0/+5
This patch adds a check within sbc_parse_cdb() to fail a UNMAP op, if the backend device has emulate_tpu disabled. Cc: Martin Petersen <martin.petersen@oracle.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-14target: Fail WRITE_SAME w/ UNMAP=1 when emulate_tpws=0Nicholas Bellinger1-0/+5
This patch adds a check within sbc_setup_write_same() to fail a WRITE_SAME w/ UNMAP=1 op, if the backend device has emulate_tpws disabled. Cc: Martin Petersen <martin.petersen@oracle.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-14target: Add sanity checks for DPO/FUA bit usageNicholas Bellinger1-10/+46
This patch adds a sbc_check_dpofua() function that performs sanity checks for DPO/FUA command bits. It introduces checks to fail when either bit is set, but the backend device is not advertising support for them. It also moves the existing cmd->se_cmd_flags |= SCF_FUA assignement into the new helper function. Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-14target: Perform PROTECT sanity checks for WRITE_SAMENicholas Bellinger3-0/+18
This patch adds a call to sbc_check_prot() within sbc_setup_write_same() code to perform the various protection releated sanity checks, including failing if WRPROTECT or RDPROTECT is set for a backend device that has not advertised support for T10-PI. Also, since WRITE_SAME + T10-PI is currently not supported by IBLOCK + FILEIO backends, go ahead and fail if ->execute_write_same() is invoked with a non zero cmd->prot_op. Cc: Martin Petersen <martin.petersen@oracle.com> Cc: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-14target: Fail I/O with PROTECT bit when protection is unsupportedNicholas Bellinger1-19/+32
This patch adds an explicit check for WRPROTECT + RDPROTECT bit usage within sbc_check_prot(), and fails with TCM_INVALID_CDB_FIELD if the backend device does not have protection enabled. Also, update sbc_check_prot() to return sense_reason_t in order to propigate up the correct sense ASQ. Cc: Martin Petersen <martin.petersen@oracle.com> Cc: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-14target: Check for LBA + sectors wrap-around in sbc_parse_cdbNicholas Bellinger1-1/+2
This patch adds a check to sbc_parse_cdb() in order to detect when an LBA + sector vs. end-of-device calculation wraps when the LBA is sufficently large enough (eg: 0xFFFFFFFFFFFFFFFF). Cc: Martin Petersen <martin.petersen@oracle.com> Cc: Christoph Hellwig <hch@lst.de> Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-14target: Add missing WRITE_SAME end-of-device sanity checkNicholas Bellinger1-0/+12
This patch adds a check to sbc_setup_write_same() to verify the incoming WRITE_SAME LBA + number of blocks does not exceed past the end-of-device. Also check for potential LBA wrap-around as well. Reported-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Martin Petersen <martin.petersen@oracle.com> Cc: Christoph Hellwig <hch@lst.de> Cc: stable@vger.kernel.org # 3.8+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-12iscsi-target: Avoid IN_LOGOUT failure case for iser-targetNicholas Bellinger1-1/+3
This patch addresses a bug reported during iser-target login/logout stress testing, where iscsit_take_action_for_connection_exit() is incorrectly invoking iscsit_close_connection() twice during IN_LOGOUT state, after connection shutdown has already been initiated by iser-target code. Here is the backtrace: BUG: unable to handle kernel NULL pointer dereference at 00000000000001f0 IP: [<ffffffffa033d992>] iscsit_take_action_for_connection_exit+0x62/0x110 [iscsi_target_mod] PGD 0 Oops: 0000 [#1] SMP Modules linked in: target_core_pscsi(O) target_core_file(O) target_core_iblock(O) ib_isert(O) iscsi_target_mod(O) ib_srpt(O) tcm_loop(O) tcm_fc(O) target_core_mod(O) mst_pciconf(OE) bonding mlx5_ib(O) mlx5_core libfc scsi_transport_fc netconsole configfs nfsv3 nfs_acl mlx4_ib(O) rdma_ucm(O) ib_ucm(O) rdma_cm(O) iw_cm(O) ib_uverbs(O) libiscsi_tcp libiscsi scsi_transport_iscsi mlx4_en mlx4_core ib_ipoib(O) ib_cm(O) ib_sa(O) ib_umad(O) ib_mad(O) ib_core(O) ib_addr(O) rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs fscache lockd grace autofs4 sunrpc 8021q garp stp llc ipv6 dm_mirror dm_region_hash dm_log dm_multipath uinput ipmi_si ipmi_msghandler acpi_pad iTCO_wdt iTCO_vendor_support dcdbas microcode pcspkr wmi sb_edac edac_core sg lpc_ich mfd_core shpchp tg3 ptp pps_core dm_mod ext3(E) jbd(E) mbcache(E) sr_mod(E) cdrom(E) sd_mod(E) ahci(E) libahci(E) megaraid_sas(E) [last unloaded: target_core_mod] CPU: 2 PID: 5280 Comm: iscsi_ttx Tainted: G W OE 3.18.0-rc2+ #22 Hardware name: Dell Inc. PowerEdge R720/0VWT90, BIOS 2.0.9 03/08/2013 task: ffff8806132f9010 ti: ffff880601d6c000 task.ti: ffff880601d6c000 RIP: 0010:[<ffffffffa033d992>] [<ffffffffa033d992>] iscsit_take_action_for_connection_exit+0x62/0x110 [iscsi_target_mod] RSP: 0018:ffff880601d6fe18 EFLAGS: 00010296 RAX: 0000000000000000 RBX: ffff8805dc437800 RCX: 0000000000000006 RDX: 0000000000000000 RSI: 0000000000000200 RDI: ffffffffa033d98b RBP: ffff880601d6fe28 R08: 0000000000000000 R09: 000000000000dd37 R10: 00000000ec5d4202 R11: 0000000000000001 R12: ffff8805dc437bf4 R13: ffff88061b831600 R14: ffff880601d6fe58 R15: ffff8806132f9010 FS: 0000000000000000(0000) GS:ffff88032fa20000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000001f0 CR3: 0000000001a14000 CR4: 00000000000407e0 Stack: ffff8805dc437800 fffffffffffffe00 ffff880601d6feb8 ffffffffa034ed40 ffff8806132f9010 ffff880601d6fe70 0f00000000000000 ffff8805d51fbef0 0000000000000000 ffff8806132f9010 ffffffff8108e7f0 ffff880601d6fe70 Call Trace: [<ffffffffa034ed40>] iscsi_target_tx_thread+0x160/0x220 [iscsi_target_mod] [<ffffffff8108e7f0>] ? bit_waitqueue+0xb0/0xb0 [<ffffffffa034ebe0>] ? iscsit_handle_snack+0x190/0x190 [iscsi_target_mod] [<ffffffff8107017e>] kthread+0xce/0xf0 [<ffffffff810700b0>] ? kthread_freezable_should_stop+0x70/0x70 [<ffffffff815a0b6c>] ret_from_fork+0x7c/0xb0 [<ffffffff810700b0>] ? kthread_freezable_should_stop+0x70/0x70 Code: 06 0f 84 82 00 00 00 3c 08 74 4e f6 05 39 e6 02 00 04 0f 85 9e 00 00 00 c6 43 19 08 4c 89 e7 e8 65 2a 26 e1 48 8b 83 a0 04 00 00 <48> 8b 88 f0 01 00 00 80 b9 d8 04 00 00 02 74 2e f6 05 31 e6 02 RIP [<ffffffffa033d992>] iscsit_take_action_for_connection_exit+0x62/0x110 [iscsi_target_mod] RSP <ffff880601d6fe18> CR2: 00000000000001f0 ---[ end trace a0c33436cd0836b4 ]--- This special case is still required by ISCSI_TCP transport during a iscsit_handle_logout_cmd() failure case in iscsi_target_rx_opcode(), but must be avoided for iser-target. Reported-by: Sagi Grimberg <sagig@mellanox.com> Reported-by: Slava Shwartsman <valyushash@gmail.com> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Slava Shwartsman <valyushash@gmail.com> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-12target: Fix PR_APTPL_BUF_LEN buffer size limitationNicholas Bellinger2-13/+14
This patch addresses the original PR_APTPL_BUF_LEN = 8k limitiation for write-out of PR APTPL metadata that Martin has recently been running into. It changes core_scsi3_update_and_write_aptpl() to use vzalloc'ed memory instead of kzalloc, and increases the default hardcoded length to 256k. It also adds logic in core_scsi3_update_and_write_aptpl() to double the original length upon core_scsi3_update_aptpl_buf() failure, and retries until the vzalloc'ed buffer is large enough to accommodate the outgoing APTPL metadata. Reported-by: Martin Svec <martin.svec@zoner.cz> Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-12iscsi-target: Drop problematic active_ts_list usageNicholas Bellinger1-23/+5
This patch drops legacy active_ts_list usage within iscsi_target_tq.c code. It was originally used to track the active thread sets during iscsi-target shutdown, and is no longer used by modern upstream code. Two people have reported list corruption using traditional iscsi-target and iser-target with the following backtrace, that appears to be related to iscsi_thread_set->ts_list being used across both active_ts_list and inactive_ts_list. [ 60.782534] ------------[ cut here ]------------ [ 60.782543] WARNING: CPU: 0 PID: 9430 at lib/list_debug.c:53 __list_del_entry+0x63/0xd0() [ 60.782545] list_del corruption, ffff88045b00d180->next is LIST_POISON1 (dead000000100100) [ 60.782546] Modules linked in: ib_srpt tcm_qla2xxx qla2xxx tcm_loop tcm_fc libfc scsi_transport_fc scsi_tgt ib_isert rdma_cm iw_cm ib_addr iscsi_target_mod target_core_pscsi target_core_file target_core_iblock target_core_mod configfs ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 ipt_REJECT xt_CHECKSUM iptable_mangle iptable_filter ip_tables bridge stp llc autofs4 sunrpc ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables ipv6 ib_ipoib ib_cm ib_uverbs ib_umad mlx4_en mlx4_ib ib_sa ib_mad ib_core mlx4_core dm_mirror dm_region_hash dm_log dm_mod vhost_net macvtap macvlan vhost tun kvm_intel kvm uinput iTCO_wdt iTCO_vendor_support microcode serio_raw pcspkr sb_edac edac_core sg i2c_i801 lpc_ich mfd_core mtip32xx igb i2c_algo_bit i2c_core ptp pps_core ioatdma dca wmi ext3(F) jbd(F) mbcache(F) sd_mod(F) crc_t10dif(F) crct10dif_common(F) ahci(F) libahci(F) isci(F) libsas(F) scsi_transport_sas(F) [last unloaded: speedstep_lib] [ 60.782597] CPU: 0 PID: 9430 Comm: iscsi_ttx Tainted: GF 3.12.19+ #2 [ 60.782598] Hardware name: Supermicro X9DRX+-F/X9DRX+-F, BIOS 3.00 07/09/2013 [ 60.782599] 0000000000000035 ffff88044de31d08 ffffffff81553ae7 0000000000000035 [ 60.782602] ffff88044de31d58 ffff88044de31d48 ffffffff8104d1cc 0000000000000002 [ 60.782605] ffff88045b00d180 ffff88045b00d0c0 ffff88045b00d0c0 ffff88044de31e58 [ 60.782607] Call Trace: [ 60.782611] [<ffffffff81553ae7>] dump_stack+0x49/0x62 [ 60.782615] [<ffffffff8104d1cc>] warn_slowpath_common+0x8c/0xc0 [ 60.782618] [<ffffffff8104d2b6>] warn_slowpath_fmt+0x46/0x50 [ 60.782620] [<ffffffff81280933>] __list_del_entry+0x63/0xd0 [ 60.782622] [<ffffffff812809b1>] list_del+0x11/0x40 [ 60.782630] [<ffffffffa06e7cf9>] iscsi_del_ts_from_active_list+0x29/0x50 [iscsi_target_mod] [ 60.782635] [<ffffffffa06e87b1>] iscsi_tx_thread_pre_handler+0xa1/0x180 [iscsi_target_mod] [ 60.782642] [<ffffffffa06fb9ae>] iscsi_target_tx_thread+0x4e/0x220 [iscsi_target_mod] [ 60.782647] [<ffffffffa06fb960>] ? iscsit_handle_snack+0x190/0x190 [iscsi_target_mod] [ 60.782652] [<ffffffffa06fb960>] ? iscsit_handle_snack+0x190/0x190 [iscsi_target_mod] [ 60.782655] [<ffffffff8106f99e>] kthread+0xce/0xe0 [ 60.782657] [<ffffffff8106f8d0>] ? kthread_freezable_should_stop+0x70/0x70 [ 60.782660] [<ffffffff8156026c>] ret_from_fork+0x7c/0xb0 [ 60.782662] [<ffffffff8106f8d0>] ? kthread_freezable_should_stop+0x70/0x70 [ 60.782663] ---[ end trace 9662f4a661d33965 ]--- Since this code is no longer used, go ahead and drop the problematic usage all-together. Reported-by: Gavin Guo <gavin.guo@canonical.com> Reported-by: Moussa Ba <moussaba@micron.com> Cc: stable@vger.kernel.org # 3.1+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-12iscsi/iser-target: Support multi-sequence sendtargets text responseSagi Grimberg5-26/+82
In case sendtargets response is larger than initiator MRDSL, we send a partial sendtargets response (setting F=0, C=1, TTT!=0xffffffff), accept a consecutive empty text message and send the rest of the payload. In case we are done, we set F=1, C=0, TTT=0xffffffff. We do that by storing the sendtargets response bytes done under the session. This patch also makes iscsit_find_cmd_from_itt public for isert. (Re-add cmd->maxcmdsn_inc and clear in iscsit_build_text_rsp - nab) Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-05iser-target: Remove duplicate function namesRasmus Villemoes1-4/+3
The macro isert_dbg already ensures that __func__ is part of the output, so there's no reason to duplicate the function name in the format string itself. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-05vhost/scsi: potential memory corruptionDan Carpenter1-3/+3
This code in vhost_scsi_make_tpg() is confusing because we limit "tpgt" to UINT_MAX but the data type of "tpg->tport_tpgt" and that is a u16. I looked at the context and it turns out that in vhost_scsi_set_endpoint(), "tpg->tport_tpgt" is used as an offset into the vs_tpg[] array which has VHOST_SCSI_MAX_TARGET (256) elements so anything higher than 255 then it is invalid. I have made that the limit now. In vhost_scsi_send_evt() we mask away values higher than 255, but now that the limit has changed, we don't need the mask. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-04vhost/scsi: Global tcm_vhost -> vhost_scsi renameNicholas Bellinger1-331/+331
There is a large amount of code that still references the original 'tcm_vhost' naming conventions, instead of modern 'vhost_scsi'. Go ahead and do a global rename to make the usage consistent. Cc: Michael S. Tsirkin <mst@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-04vhost/scsi: Drop left-over scsi_tcq.h includeNicholas Bellinger1-1/+0
With the recent removal of MSG_*_TAG defines in commit 68d81f40, vhost-scsi is now using TCM_*_TAG and doesn't depend upon host side scsi_tcq.h definitions anymore. Cc: Michael S. Tsirkin <mst@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-04vhost/scsi: Set VIRTIO_F_ANY_LAYOUT + VIRTIO_F_VERSION_1 feature bitsNicholas Bellinger1-1/+3
Signal support of VIRTIO_F_ANY_LAYOUT + VIRTIO_F_VERSION_1 feature bits required for virtio-scsi 1.0 spec layout requirements. Cc: Michael S. Tsirkin <mst@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-04vhost/scsi: Add ANY_LAYOUT support in vhost_scsi_handle_vqNicholas Bellinger1-196/+110
This patch adds ANY_LAYOUT compatible support within the existing vhost_scsi_handle_vq() ->handle_kick() callback. It calculates data_direction + exp_data_len for the new tcm_vhost_cmd descriptor by walking both outgoing + incoming iovecs using iov_iter, assuming the layout of outgoing request header + T10_PI + Data payload comes first. It also uses copy_from_iter() to copy leading virtio-scsi request header that may or may not include SCSI CDB, that returns a re-calculated iovec to start of T10_PI or Data SGL memory. Also, go ahead and drop the legacy pre virtio v1.0 !ANY_LAYOUT logic. Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-04vhost/scsi: Add ANY_LAYOUT iov -> sgl mapping prerequisitesNicholas Bellinger1-0/+93
This patch adds ANY_LAYOUT prerequisites logic for accepting a set of protection + data payloads via iov_iter. Also includes helpers for calcuating SGLs + invoking vhost_scsi_map_to_sgl() with a known number of iovecs. Required by ANY_LAYOUT processing when struct iovec may be offset into the first outgoing virtio-scsi request header. Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-04vhost/scsi: Change vhost_scsi_map_to_sgl to accept iov ptr + lenNicholas Bellinger1-22/+15
This patch changes vhost_scsi_map_to_sgl() parameters to accept virtio iovec ptr + len when determing pages_nr. This is currently done with iov_num_pages() -> PAGE_ALIGN, so allow the same parameters as well. Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-04vhost/scsi: Fix incorrect early vhost_scsi_handle_vq failuresNicholas Bellinger1-23/+29
This patch fixes vhost_scsi_handle_vq() failure cases that result in BUG_ON() getting triggered when vhost_scsi_free_cmd() is called, and ->tvc_se_cmd has not been initialized by target_submit_cmd_map_sgls(). It changes tcm_vhost_release_cmd() to use tcm_vhost_cmd->tvc_nexus for obtaining se_session pointer reference. Also, avoid calling put_page() on NULL sg->page entries in vhost_scsi_map_to_sgl() failure path. Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-04vhost/scsi: Convert completion path to use copy_to_iterNicholas Bellinger1-5/+12
Required for ANY_LAYOUT support when the incoming virtio-scsi response header + fixed size sense buffer payload may span more than a single iovec entry. This changes existing code to save cmd->tvc_resp_iov instead of the first single iovec base pointer from &vq->iov[out]. Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-04iser-target: Fix wrong allocation in the case of an empty text messageSagi Grimberg1-6/+8
if text message dlength is 0, don't allocate a buffer for it, pass NULL to iscsit_process_text_cmd. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-04iscsi-target: Don't over-allocate sendtargets text resp bufferSagi Grimberg1-1/+1
No reason to allocate a buffer of size bigger than initiator MaxRecvDataSegmentLength. Moreover, we need to respect initiator MRDSL and not send a larger payload. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-04iscsi-target: Introduce session_get_next_tttSagi Grimberg3-17/+17
Reduce code duplication. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-04iser-target: Use WQ_UNBOUND for completion workqueueSagi Grimberg1-1/+2
Bound workqueues might be too restrictive since they allow only a single core per session for processing completions. WQ_UNBOUND will allow bouncing to another CPU if the running CPU is currently busy. Luckily, our workqueues are NUMA aware and will first try to bounce within the same NUMA socket. My measurements with NULL backend devices show that there is no (noticeable) additional latency as a result of the change. I'd expect even to gain performance when working with fast devices that also allocate MSIX interrupt vectors. While we're at it, make it WQ_HIGHPRI since processing completions is really a high priority for performance. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Reported-by: Moussa Ba <moussaba@micron.com> Signed-off-by: Moussa Ba <moussaba@micron.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-01-30iser-target: Fix typo in isert_put_text_rspSagi Grimberg1-1/+1
We are sending text response and not reject. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-01-30iser-target: Fix sparse warningSagi Grimberg1-1/+1
isert_debug_level should be static, hence no need to initialize it. Reported-by: Shachar Raindel <raindel@mellanox.com> Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-01-30iscsi-target: Move iscsi_target_[core,stat].h under linux includeSagi Grimberg21-23/+23
Seems strange to see in include/target/iscsi/iscsi_transport.h: include "../../../drivers/target/iscsi/iscsi_target_core.h" Move it to it's natural location. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-01-20ib_srpt: wait_for_completion_timeout does not return negative statusNicholas Mc Guire1-2/+2
This patch changes srpt_close_session() to properly use an unsigned long for wait_for_completion_timeout()'s return value, and to update WARN_ON() to only trigger for a zero return. Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-01-15iscsi-target: use '%*ph' specifier to dump hex bufferAndy Shevchenko1-9/+4
Instead of pushing each byte via stack the %*ph specifier allows to supply just a pointer and length of the buffer. The patch converts code to use the specifier. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-01-15tcm_qla2xxx: print port name via %*phCAndy Shevchenko1-3/+1
Instead of pushing each byte via stack let's use custom specifier which allows to print small buffers as a hex string. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-12-20Linux 3.19-rc1Linus Torvalds1-2/+2
2014-12-20i2c: sh_mobile: fix uninitialized var when debug is enabledWolfram Sang1-0/+1
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-12-20CRISv32: Remove last remnants of ETRAX_SPI_MMC_BOARDJesper Nilsson1-7/+0
There are no users of this symbol left. Reported-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRISv32: ETRAXFS: Fix recursive spinlockJesper Nilsson2-71/+83
Move pinmux alloc/dealloc code into functions that don't take the spinlock so we can use from code that has the spinlock already. CRISv32 has no working SMP, so spinlocks becomes a NOP, so deadlock was never seen. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRISv32: Select MTDRAM for axisflashmapJesper Nilsson1-0/+1
Fixes compile error on allmodconfig. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRISv32: Implement early consoleJesper Nilsson1-26/+56
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRIS: Use KALLSYMs if available in call stack dumpJesper Nilsson1-27/+34
Also, print kernel version on oops. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRISv32: Fix declaration mismatchJesper Nilsson1-1/+0
Drop i2c_init from this header, it was declared non-static here, but static in the C-file. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRISv32: Rewrite of synchronous serial port driverJesper Nilsson1-639/+791
Make driver possible to load as a module and try to handle locking better. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRIS: Update init memory handlingJesper Nilsson1-5/+33
- Add free_initrd_mem as found by Guenter Roeck <linux@roeck-us.net> - Add free_init_pages - Export empty_zero_page symbol Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRISv32: Better handling of watchdog biteJesper Nilsson1-11/+17
Don't enter watchdog handling if we're already in watchdog handling. Also some minor formatting tweaks. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRIS: Export missing function symbolsJesper Nilsson3-19/+19
strcmp was lost when all other string functions were removed, but we still have an optimized version for this on CRISv32, so any driver built as a module would not have access to this symbol. In a similar manner, we had optimized versions of csum_partial_copy_from_user and __do_clear_user but no exported symbols for them, breaking bunch of other drivers when built as a module. At the same time, move EXPORT_SYMBOL(__copy_user) and EXPORT_SYMBOL(__copy_user_zeroing) C-files so it's located together with the function definition. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRIS: Export ioremap_nocacheJesper Nilsson1-1/+2
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRIS: Fix headers_installSam Ravnborg3-8/+2
Fix headers_install by adjusting the path to arch files. And delete unused Kbuild file. Drop special handling of cris in the headers.sh script as a nice side-effect. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Mikael Starvik <starvik@axis.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRISv32: Add missing include for mm.hJesper Nilsson1-0/+1
Fixes the following compile error. arch/cris/arch-v32/kernel/time.c: In function 'reset_watchdog': arch/cris/arch-v32/kernel/time.c:121:2: error: implicit declaration of function 'global_page_state' Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-19CRISv32: Drop obsolete file for SPI driverJesper Nilsson1-1/+0
File was already deleted. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-19PM: Eliminate CONFIG_PM_RUNTIMERafael J. Wysocki37-48/+39
Having switched over all of the users of CONFIG_PM_RUNTIME to use CONFIG_PM directly, turn the latter into a user-selectable option and drop the former entirely from the tree. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Kevin Hilman <khilman@linaro.org>
2014-12-19Update/Remove soon-to-be-dead email addressDave Jones5-10/+8
I'm leaving Red Hat at the end of December 2014, so remove all references to my soon-to-be-dead address. (There are some references left in the tree, that need additional changes, I'll send those through the AGP maintainers). Signed-off-by: Dave Jones <davej@codemonkey.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-19macintosh: therm_pm72: delete deprecated driverWolfram Sang4-2615/+0
The new driver is around for more than 2 years now, so the old one can go. Getting rid of it helps the removal of the legacy .attach_adapter callback of the I2C subsystem. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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