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58ad70c Bryant Ly 03 May 2016, 01:13:46 UTC Ibmvscsis: reverting scsi_lib changes This change reverts scsi_lib changes with extern and export 03 May 2016, 01:13:46 UTC
5c9bb04 Bryant Ly 02 May 2016, 18:32:59 UTC Ibmvscsis: Target Port Changes This change allows driver to fully use target emulation for mode sense, inquiry, and report luns. It also removes spinning for handling of cmd queues. It makes them atomic. This also removes use of old scsi_tgt_ stuff. 02 May 2016, 18:32:59 UTC
2fd5cae Bryant Ly 27 April 2016, 21:34:17 UTC ibmvscsis: changes relating to emulation of srpcmd This changes reflect changes in regards to emulating report_luns and mode_sense 27 April 2016, 21:34:17 UTC
84aba78 Bryant Ly 26 April 2016, 15:23:10 UTC Merge pull request #13 from powervm/Cleanup Ibmvscsis: checkpatch.pl cleanup 26 April 2016, 15:23:10 UTC
79ebd68 Bryant Ly 26 April 2016, 15:20:57 UTC Ibmvscsis: checkpatch.pl cleanup This patch contains cleanup ran from checkpatch.pl. for SCSI/LIBSRP changes 26 April 2016, 15:20:57 UTC
df6fba9 Bryant Ly 22 April 2016, 20:55:53 UTC Merge pull request #12 from powervm/libsrpchanges libsrp .h change to fix return type 22 April 2016, 20:55:53 UTC
ae6c72c Bryant Ly 22 April 2016, 20:54:42 UTC libsrp .h change to fix return type fixing return type 22 April 2016, 20:54:42 UTC
8ed8541 Bryant Ly 22 April 2016, 20:14:01 UTC Merge pull request #11 from powervm/libsrpfix LIBSRP change to add ilist back 22 April 2016, 20:14:01 UTC
17d9f48 Bryant Ly 22 April 2016, 20:12:49 UTC LIBSRP change to add ilist back These are minor changes to uncomment stuff that was commented out 22 April 2016, 20:12:49 UTC
0ceb865 Bryant Ly 18 April 2016, 15:30:39 UTC Merge pull request #10 from powervm/StructureCleanup Structure cleanup 18 April 2016, 15:30:39 UTC
ac1e07b Bryant Ly 18 April 2016, 15:27:26 UTC Merge branch 'StructureCleanup' of https://github.com/powervm/ibmvscsis into StructureCleanup 18 April 2016, 15:27:26 UTC
5c3ea77 Bryant Ly 18 April 2016, 15:25:34 UTC Merge branch 'development' of https://github.com/powervm/ibmvscsis into StructureCleanup This merge fixes the queues and structures 18 April 2016, 15:25:34 UTC
ed31b3e Bryant Ly 14 April 2016, 21:22:48 UTC Ibmvscsis - changes related to structure cleanup This change will cover cleaning up target allocations and structure allocations. The driver also works at this point 18 April 2016, 15:24:21 UTC
5a5a067 Bryant Ly 14 April 2016, 21:22:48 UTC Ibmvscsis - changes related to structure cleanup This change will cover cleaning up target allocations and structure allocations. 14 April 2016, 21:22:48 UTC
9c655e5 Bryant Ly 12 April 2016, 21:36:24 UTC Merge pull request #9 from powervm/FixInquiry Ibmvscsis - Fix inquiry function 12 April 2016, 21:36:24 UTC
a6a198e Bryant Ly 12 April 2016, 21:34:39 UTC Ibmvscsis - Fix inquiry function This commit fixes the inquiry function, so that the driver atleast gets past the inquiry and then last step is to get target_submit_cmd to work. 12 April 2016, 21:34:39 UTC
e94b3db Bryant Ly 11 April 2016, 16:06:24 UTC Merge pull request #8 from powervm/TCMInitInProbe Ibmvscsis fixed probe to wait and not dest objs 11 April 2016, 16:06:24 UTC
fc4b3e7 Bryant Ly 11 April 2016, 16:02:24 UTC Ibmvscsis fixed probe to wait and not dest objs This fix makes the driver support having the server be setup first and not have client ready. It also adds support for process_login to send fail if tpg isn't allocated, tcm_queuecommand is also updated to use target_submit_cmd, and lastly client request report of luns is now showing up as compared to before where it wasn't doing it. 11 April 2016, 16:02:24 UTC
564d3fb Bryant Ly 07 April 2016, 21:40:54 UTC Merge pull request #7 from powervm/scsichanges scsi_lib.c change function type 07 April 2016, 21:40:54 UTC
2ad5b83 Bryant Ly 07 April 2016, 21:38:44 UTC scsi_lib.c change function type Changes the scsi_release_buffers from static void to just void. This is just to get old stuff working, quick fix. 07 April 2016, 21:38:44 UTC
28bb9ed Bryant Ly 06 April 2016, 17:20:55 UTC Merge pull request #6 from powervm/test_prototype Ibmvscsis Misc fixes 06 April 2016, 17:20:55 UTC
918dac0 Bryant Ly 06 April 2016, 16:27:45 UTC Merge branch 'development' of https://github.com/powervm/ibmvscsis into test_prototype 06 April 2016, 16:27:45 UTC
b8b06b9 Bryant Ly 06 April 2016, 15:47:49 UTC Ibmvscsis Misc fixes This change fixes reporting of correct OS back to client. It also addresses getting a scsi scan to occur after SRP_LOGIN success. I have also added a base_attrib as a target config op so that it can be later used to check if tpg is setup prior to submitting a login. A follow up task would be to get make_nexus to occur during probe. This way target mapped luns and userspace stuff is setup prior to handling of login request. 06 April 2016, 15:47:49 UTC
009a24a Bryant Ly 05 April 2016, 14:21:48 UTC Merge pull request #5 from powervm/IbmvscsisCleanup Clean up Ibmvscsis 05 April 2016, 14:21:48 UTC
30ffd09 bgly 17 March 2016, 22:46:47 UTC Revert "powerpc: Simplify module TOC handling" This reverts commit c153693d7eb9eeb28478aa2deaaf0b4e7b5ff5e9. Change-Id: I927d8eeb392e112bbc6b7b7e574460995522c5b5 17 March 2016, 22:46:47 UTC
8074625 bgly 16 March 2016, 15:48:21 UTC Clean up Ibmvscsis These changes include clean up of unused functions/protocols such as T10 Protection, sgl, upages, prot_sgl, drop extra tport_proto_id stuff since we just want to always use SCSI_PROTOCOL_SRP. Removal of .node_acl_size and unused nexus code. This commit will also change from workqueue to tasklets due to a bug found in ibmvmc driver. Lastly, this patch will implement start of integration with target. 16 March 2016, 15:48:21 UTC
febef65 bgly 14 March 2016, 21:34:43 UTC Adding the Ibmvscsis target driver. This commit also includes all the makefiles and kconfigs associated with enabling the ibmvscsis target driver. 14 March 2016, 21:34:43 UTC
9d43b38 bgly 14 March 2016, 21:30:31 UTC Adding the Libsrp library for VSCSI Target driver This is the initial push of the libsrp files that are required for the ibmvscsis target driver. 14 March 2016, 21:30:31 UTC
59e9b8e bgly 14 March 2016, 21:19:32 UTC SCSI Target Changes for VSCSI Target Driver This push contains all the necessary changes that the VSCSI Target Driver needs. 14 March 2016, 21:19:32 UTC
f630dbf Nicholas Bellinger 07 February 2016, 05:48:04 UTC target/iblock: Use -EAGAIN/-ENOMEM to propigate SAM BUSY/TASK_SET_FULL This patch updates target/iblock backend driver code to check for bio completion status of -EAGAIN / -ENOMEM provided by raw block drivers and scsi devices, in order to generate the following SCSI status to initiators: - SAM_STAT_BUSY - SAM_STAT_TASK_SET_FULL Note these two SAM status codes are useful to signal to Linux SCSI host side that se_cmd should be retried again, or with TASK_SET_FULL case to attempt to lower our internal host LLD queue_depth and scsi_cmnd retry. It also updates target_complete_cmd() to parse status when signalling success to target_completion_wq. Reviewed-by: Hannes Reinecke <hare@suse.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Andy Grover <agrover@redhat.com> Cc: Mike Christie <mchristi@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:36:20 UTC
2654cf3 Nicholas Bellinger 05 March 2016, 06:30:52 UTC target: Avoid DataIN transfers for non-GOOD SAM status This patch modifies existing transport_complete_*() code to avoid invoking target_core_fabric_ops->queue_data_in() driver callbacks for I/O READs with non-GOOD SAM status. Some initiators expect GOOD status when a DATA-IN payload transfer is involved, so to be safe go ahead and always invoke target_core_fabric_ops->queue_status() to generate fabric responses instead. Note this is a prerequisite for IBLOCK supporting retriable status, so SAM_STAT_BUSY + SAM_STAT_TASK_SET_FULL always generates fabric driver responses instead of initiating DataIN payload transfer when non-GOOD status is present Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Andy Grover <agrover@redhat.com> Cc: Mike Christie <mchristi@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:36:17 UTC
01d6eea Sheng Yang 01 March 2016, 00:02:15 UTC target/user: Report capability of handling out-of-order completions to userspace TCMU_MAILBOX_FLAG_CAP_OOOC was introduced, and userspace can check the flag for out-of-order completion capability support. Also update the document on how to use the feature. Signed-off-by: Sheng Yang <sheng@yasker.org> Reviewed-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:36:15 UTC
27d5306 Nicholas Bellinger 28 February 2016, 02:25:22 UTC target/user: Fix size_t format-spec build warning Fix the following printk size_t warning as per 0-day build: All warnings (new ones prefixed by >>): drivers/target/target_core_user.c: In function 'is_ring_space_avail': >> drivers/target/target_core_user.c:385:12: warning: format '%lu' >> expects argument of type 'long unsigned int', but argument 3 has type >> 'size_t {aka unsigned int}' [-Wformat=] pr_debug("no data space: only %lu available, but ask for %lu\n", ^ Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:36:13 UTC
dbfc15a Sheng Yang 26 February 2016, 22:59:58 UTC target/user: Don't free expired command when time out Which would result in NPE after when userspace connected again. Expired command would be freed either when handling command(by userspace), or when device was tearing down Reviewed-by: Andy Grover <agrover@redhat.com> Signed-off-by: Sheng Yang <sheng@yasker.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:36:11 UTC
a1171a3 Sheng Yang 26 February 2016, 22:59:57 UTC target/user: Introduce data_bitmap, replace data_length/data_head/data_tail The data_bitmap was introduced to support asynchornization accessing of data area. We divide mailbox data area into blocks, and use data_bitmap to track the usage of data area. All the new command's data would start with a new block, and may left unusable space after it end. But it's easy to track using data_bitmap. Now we can allocate data area for asynchronization accessing from userspace, since we can track the allocation using data_bitmap. The userspace part would be the same as Maxim's previous asynchronized implementation. Signed-off-by: Sheng Yang <sheng@yasker.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:36:09 UTC
62e7b25 Sheng Yang 26 February 2016, 22:59:56 UTC target/user: Free data ring in unified function Prepare for data_bitmap in the next patch. Reviewed-by: Andy Grover <agrover@redhat.com> Signed-off-by: Sheng Yang <sheng@yasker.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:36:06 UTC
ba6b96e Sheng Yang 26 February 2016, 22:59:55 UTC target/user: Use iovec[] to describe continuous area We don't need use one iovec per scatter-gather list entry, since data area are continuous. Reviewed-by: Andy Grover <agrover@redhat.com> Signed-off-by: Sheng Yang <sheng@yasker.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:36:04 UTC
0a95b29 Andy Grover 25 February 2016, 23:14:32 UTC target: Remove enum transport_lunflags_table se_dev_entry.lun_flags and se_lun.lun_access are only used for keeping track of read-write vs. read-only state. Since this is an either/or thing we can represent it as bool, and remove the unneeded enum transport_lunflags_table, which is left over from when there were more flags. Change code that uses this enum to just use true/false, and make it clear through variable and param names that true means read-only, false means read-write. Signed-off-by: Andy Grover <agrover@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:36:02 UTC
cf12009 Mike Christie 24 February 2016, 19:56:33 UTC target/iblock: pass WRITE_SAME to device if possible This patch has iblock pass the WRITE_SAME command to the device for offloading if possible. It is similar to what is done for UNMAP/discards, except that we export a large max write same value to the initiator, and then rely on the block layer to break it up into multiple requests if it cannot fit into one. v2. - Drop file backend changes and move helper function to iblock backend. Signed-off-by: Mike Christie <mchristi@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:36:00 UTC
2866108 Christoph Hellwig 24 February 2016, 17:24:08 UTC iser-target: Kill the ->isert_cmd back pointer in struct iser_tx_desc We only use the pointer when processing regular iSER commands, and it then always points to the struct iser_cmd that contains the TX descriptor. Remove it and rely on container_of to save a little space and avoid a pointer that is updated multiple times per processed command. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:35:58 UTC
fd625eb Christoph Hellwig 24 February 2016, 17:24:07 UTC iser-target: Kill struct isert_rdma_wr There is exactly one instance per struct isert_cmd, so merge the two to simplify everyones life. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:35:56 UTC
c3ddb7f Christoph Hellwig 24 February 2016, 17:24:06 UTC iser-target: Convert to new CQ API Use the workqueue based CQ type similar to what isert was using previously, and properly split up the completion handlers. Note that this also takes special care to handle the magic login WRs separately, and also renames the submission functions so that it's clear that they are only to be used for the login buffers. (Fix up isert_print_wc usage in isert_beacon_done - nab) Signed-off-by: Christoph Hellwig <hch@lst.de> [sagig: added iscsi conn reinstatement in non-flush error completions and added error completion type print] Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:35:53 UTC
7e2f756 Christoph Hellwig 24 February 2016, 17:24:05 UTC iser-target: Split and properly type the login buffer The login receive buffer is used as a iser_rx_desc, so type it as such in struct isert_conn and allocate the exactly right space for it. The TX buffer is moved to a separate variable and properly sized as well. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:35:51 UTC
a6324f7 Christoph Hellwig 24 February 2016, 17:24:04 UTC iser-target: Remove ISER_RECV_DATA_SEG_LEN This is the same as ISCSI_DEF_MAX_RECV_SEG_LEN (and must be the same given the structure layouts), so just use that constant instead. This also allows removing ISER_RX_LOGIN_SIZE in favor of ISER_RX_PAYLOAD_SIZE. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:35:49 UTC
2e54a93 Jenny Derzhavetz 24 February 2016, 17:24:03 UTC iser-target: Remove impossible condition from isert_wait_conn We can never get to isert_wait_conn in INIT state anymore, so get rid of this condition. Signed-off-by: Jenny Derzhavetz <jennyf@mellanox.com> Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:35:47 UTC
c3d141c Jenny Derzhavetz 24 February 2016, 17:24:02 UTC iser-target: Remove redundant wait in release_conn With current termination flow we call release_conn after completion. Signed-off-by: Jenny Derzhavetz <jennyf@mellanox.com> Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:35:45 UTC
ff93150 Jenny Derzhavetz 24 February 2016, 17:24:01 UTC iser-target: Rework connection termination When we receive an event that triggers connection termination, we have a a couple of things we may want to do: 1. In case we are already terminating, bailout early 2. In case we are connected but not bound, disconnect and schedule a connection cleanup silently (don't reinstate) 3. In case we are connected and bound, disconnect and reinstate the connection This rework fixes a bug that was detected against a mis-behaved initiator which rejected our rdma_cm accept, in this stage the isert_conn is no bound and reinstate caused a bogus dereference. What's great about this is that we don't need the post_recv_buf_count anymore, so get rid of it. Signed-off-by: Jenny Derzhavetz <jennyf@mellanox.com> Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Cc: stable@vger.kernel.org # v3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:35:43 UTC
cd7f942 Jenny Derzhavetz 24 February 2016, 17:24:00 UTC iser-target: Separate flows for np listeners and connections cma events No need to restrict this check to specific events. Signed-off-by: Jenny Derzhavetz <jennyf@mellanox.com> Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Cc: stable@vger.kernel.org # v3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:35:41 UTC
eb2770e Jenny Derzhavetz 24 February 2016, 17:23:59 UTC iser-target: Add new state ISER_CONN_BOUND to isert_conn We need an indication that isert_conn->iscsi_conn binding has happened so we'll know not to invoke a connection reinstatement on an unbound connection which will lead to a bogus isert_conn->conn dereferece. Signed-off-by: Jenny Derzhavetz <jennyf@mellanox.com> Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Cc: stable@vger.kernel.org # v3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:35:38 UTC
b609cc1 Jenny Derzhavetz 24 February 2016, 17:23:58 UTC iser-target: Fix identification of login rx descriptor type Once connection request is accepted, one rx descriptor is posted to receive login request. This descriptor has rx type, but is outside the main pool of rx descriptors, and thus was mistreated as tx type. Signed-off-by: Jenny Derzhavetz <jennyf@mellanox.com> Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Cc: stable@vger.kernel.org # v3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:35:36 UTC
1d5c042 Quinn Tran 04 February 2016, 16:45:18 UTC qla2xxx: Add DebugFS node for target sess list. #cat /sys/kernel/debug/qla2xxx/qla2xxx_31/tgt_sess qla2xxx_31 Port ID Port Name Handle ff:fc:01 21:fd:00:05:33:c7:ec:16 0 01:0e:00 21:00:00:24:ff:7b:8a:e4 1 01:0f:00 21:00:00:24:ff:7b:8a:e5 2 .... (Drop ->check_initiator_node_acl() parameter usage - nab) Signed-off-by: Quinn Tran <quinn.tran@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:35:34 UTC
1335b45 Nicholas Bellinger 30 January 2016, 06:47:58 UTC ib_srpt: Convert to percpu_ida tag allocation Cc: Vu Pham <vu@mellanox.com> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:35:32 UTC
c8d336d Nicholas Bellinger 30 January 2016, 06:08:54 UTC tcm_fc: Convert to TARGET_SCF_ACK_KREF I/O + TMR krefs Cc: Vasu Dev <vasu.dev@linux.intel.com> Cc: Mark Rustad <mark.d.rustad@intel.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:35:29 UTC
130e8a2 Nicholas Bellinger 25 January 2016, 06:44:38 UTC xen-scsiback: Convert to TARGET_SCF_ACK_KREF I/O krefs Acked-by: Juergen Gross <jgross@suse.com> Tested-by: Juergen Gross <jgross@suse.com> Cc: Hannes Reinecke <hare@suse.de> Cc: David Vrabel <david.vrabel@citrix.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:35:27 UTC
194509e Nicholas Bellinger 25 January 2016, 06:41:50 UTC xen-scsiback: Convert to percpu_ida tag allocation (Add wrapper for handling pending_req tag failure - Juergen) (Drop left-over se_cmd memset in scsiback_cmd_exec - Juergen) Acked-by: Juergen Gross <jgross@suse.com> Tested-by: Juergen Gross <jgross@suse.com> Cc: Hannes Reinecke <hare@suse.de> Cc: David Vrabel <david.vrabel@citrix.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:35:25 UTC
c4468d4 Nicholas Bellinger 25 January 2016, 07:28:27 UTC usb-gadget/tcm: Convert to TARGET_SCF_ACK_KREF I/O krefs This patch drops struct usbg_cmd->kref internal kref-erence usage, for proper TARGET_SCF_ACK_KREF conversion. Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:35:23 UTC
1fdf5f7 Nicholas Bellinger 23 January 2016, 09:05:05 UTC usb-gadget/tcm: Conversion to percpu_ida tag pre-allocation Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:35:21 UTC
a778862 Nicholas Bellinger 25 January 2016, 06:04:14 UTC sbp-target: Convert to TARGET_SCF_ACK_KREF I/O krefs Cc: Chris Boot <bootc@bootc.net> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:35:18 UTC
e7741b0 Nicholas Bellinger 23 January 2016, 09:04:36 UTC sbp-target: Conversion to percpu_ida tag pre-allocation (Fix sbp_mgt_get_req() IS_ERR failure checking - Dan Carpenter) Cc: Chris Boot <bootc@bootc.net> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:34:51 UTC
d74a601 Nicholas Bellinger 10 January 2016, 04:42:43 UTC ib_srpt: Convert to target_alloc_session usage Cc: Vu Pham <vu@mellanox.com> Cc: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:24:16 UTC
869525a Nicholas Bellinger 10 January 2016, 04:12:40 UTC tcm_fc: Convert to target_alloc_session usage Cc: Vasu Dev <vasu.dev@linux.intel.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:24:14 UTC
910e0c6 Nicholas Bellinger 09 January 2016, 14:47:58 UTC tcm_qla2xxx: Convert to target_alloc_session usage Cc: Himanshu Madhani <himanshu.madhani@qlogic.com> Cc: Quinn Tran <quinn.tran@qlogic.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:24:12 UTC
1ccafc1 Nicholas Bellinger 09 January 2016, 13:47:55 UTC vhost/scsi: Convert to target_alloc_session usage Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:24:10 UTC
8b00965 Christoph Hellwig 09 January 2016, 13:30:45 UTC target: Convert demo-mode only drivers to target_alloc_session (Fix possible usb-gadget + tcm-loop make_nexus breakage - Dan Carpenter) Acked-by: Juergen Gross <jgross@suse.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Chris Boot <bootc@bootc.net> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 05 March 2016, 07:24:02 UTC
7861728 Nicholas Bellinger 09 January 2016, 13:29:24 UTC target: Add target_alloc_session() helper function Based on HCH's original patch, this adds a full version to support percpu-ida tag pre-allocation and callback function pointer into fabric driver code to complete session setup. Reported-by: Christoph Hellwig <hch@lst.de> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> 27 February 2016, 22:59:42 UTC
81f70ba Linus Torvalds 20 February 2016, 21:39:35 UTC Linux 4.5-rc5 20 February 2016, 21:39:35 UTC
0389075 Linus Torvalds 20 February 2016, 17:32:40 UTC Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "This is unusually large, partly due to the EFI fixes that prevent accidental deletion of EFI variables through efivarfs that may brick machines. These fixes are somewhat involved to maintain compatibility with existing install methods and other usage modes, while trying to turn off the 'rm -rf' bricking vector. Other fixes are for large page ioremap()s and for non-temporal user-memcpy()s" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm: Fix vmalloc_fault() to handle large pages properly hpet: Drop stale URLs x86/uaccess/64: Handle the caching of 4-byte nocache copies properly in __copy_user_nocache() x86/uaccess/64: Make the __copy_user_nocache() assembly code more readable lib/ucs2_string: Correct ucs2 -> utf8 conversion efi: Add pstore variables to the deletion whitelist efi: Make efivarfs entries immutable by default efi: Make our variable validation list include the guid efi: Do variable name validation tests in utf8 efi: Use ucs2_as_utf8 in efivarfs instead of open coding a bad version lib/ucs2_string: Add ucs2 -> utf8 helper functions 20 February 2016, 17:32:40 UTC
06b74c6 Linus Torvalds 20 February 2016, 17:30:42 UTC Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "A handful of CPU hotplug related fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/core: Plug potential memory leak in CPU_UP_PREPARE perf/core: Remove the bogus and dangerous CPU_DOWN_FAILED hotplug state perf/core: Remove bogus UP_CANCELED hotplug state perf/x86/amd/uncore: Plug reference leak 20 February 2016, 17:30:42 UTC
e6a1c1e Linus Torvalds 20 February 2016, 17:22:11 UTC Merge tag 'powerpc-4.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - Fix build error on 32-bit with checkpoint restart from Aneesh Kumar - Fix dedotify for binutils >= 2.26 from Andreas Schwab - Don't trace hcalls on offline CPUs from Denis Kirjanov - eeh: Fix stale cached primary bus from Gavin Shan - eeh: Fix stale PE primary bus from Gavin Shan - mm: Fix Multi hit ERAT cause by recent THP update from Aneesh Kumar K.V - ioda: Set "read" permission when "write" is set from Alexey Kardashevskiy * tag 'powerpc-4.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/ioda: Set "read" permission when "write" is set powerpc/mm: Fix Multi hit ERAT cause by recent THP update powerpc/powernv: Fix stale PE primary bus powerpc/eeh: Fix stale cached primary bus powerpc/pseries: Don't trace hcalls on offline CPUs powerpc: Fix dedotify for binutils >= 2.26 powerpc/book3s_32: Fix build error with checkpoint restart 20 February 2016, 17:22:11 UTC
da6b736 Linus Torvalds 20 February 2016, 17:19:56 UTC Merge tag 'dmaengine-fix-4.5-rc5' of git://git.infradead.org/users/vkoul/slave-dma Pull dmaengine fixes from Vinod Koul: "A few fixes for drivers, nothing major here. Fixes are: iotdma fix to restart channels, new ID for wildcat PCH, residue fix for edma, disable irq for non-cyclic in dw" * tag 'dmaengine-fix-4.5-rc5' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: dw: disable BLOCK IRQs for non-cyclic xfer dmaengine: edma: fix residue race for cyclic dmaengine: dw: pci: add ID for WildcatPoint PCH dmaengine: IOATDMA: fix timer code that continues to restart channels during idle 20 February 2016, 17:19:56 UTC
37aa4da Linus Torvalds 20 February 2016, 17:16:51 UTC Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk driver fixes from Stephen Boyd: "An assortment of vendor specific clk drivers fixes, most notably fallout from adding Tegra210 and rockchip rk3036/rk3368 drivers this cycle. There's also the random smattering of sparse/checker fixes, a build "fix" to get the Tango clk driver to compile because the Kconfig symbol was renamed after the fact, and a clk gpio fix for a patch mismerge" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (28 commits) clk: gpio: Really allow an optional clock= DT property Revert "clk: qcom: Specify LE device endianness" clk: versatile: mask VCO bits before writing clk: tegra: super: Fix sparse warnings for functions not declared as static clk: tegra: Fix sparse warnings for functions not declared as static clk: tegra: Fix sparse warning for pll_m clk: tegra: Use definition for pll_u override bit clk: tegra: Fix warning caused by pll_u failing to lock clk: tegra: Fix clock sources for Tegra210 EMC clk: tegra: Add the APB2APE audio clock on Tegra210 clk: tegra: Add missing of_node_put() clk: tegra: Fix PLLE SS coefficients clk: tegra: Fix typos around clearing PLLE bits during enable clk: tegra: Do not disable PLLE when under hardware control clk: tegra: Fix pllx dyn step calculation clk: tegra: pll: Fix potential sleeping-while-atomic clk: tegra: Fix the misnaming of nvenc from msenc clk: tegra: Fix naming of MISC registers clk: tango4: rename ARCH_TANGOX to ARCH_TANGO clk: scpi: Fix checking return value of platform_device_register_simple() ... 20 February 2016, 17:16:51 UTC
a703f42 Linus Torvalds 20 February 2016, 17:13:18 UTC Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux Pull more drm fixes from Dave Airlie: "Some more fixes trickled in: A bunch of VC4 ones since it's a pretty new driver not much chance of regressions, and it fixes GPU resets. Also one atomic fix, one set of fixes for a common bug in TTM cleanup, and one i915 hotplug fix" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/nouveau: use post-decrement in error handling drm/atomic: Allow for holes in connector state, v2. drm/i915: Fix hpd live status bits for g4x drm/vc4: Use runtime PM to power cycle the device when the GPU hangs. drm/vc4: Enable runtime PM. drm/vc4: Fix spurious GPU resets due to BO reuse. drm/vc4: Drop error message on seqno wait timeouts. drm/vc4: Fix -ERESTARTSYS error return from BO waits. drm/vc4: Return an ERR_PTR from BO creation instead of NULL. drm/vc4: Fix the clear color for the first tile rendered. drm/vc4: Validate that WAIT_BO padding is cleared. drm/radeon: use post-decrement in error handling drm/amdgpu: use post-decrement in error handling 20 February 2016, 17:13:18 UTC
59ceeaa Simon Guinot 09 September 2015, 22:15:18 UTC kernel/resource.c: fix muxed resource handling in __request_region() In __request_region, if a conflict with a BUSY and MUXED resource is detected, then the caller goes to sleep and waits for the resource to be released. A pointer on the conflicting resource is kept. At wake-up this pointer is used as a parent to retry to request the region. A first problem is that this pointer might well be invalid (if for example the conflicting resource have already been freed). Another problem is that the next call to __request_region() fails to detect a remaining conflict. The previously conflicting resource is passed as a parameter and __request_region() will look for a conflict among the children of this resource and not at the resource itself. It is likely to succeed anyway, even if there is still a conflict. Instead, the parent of the conflicting resource should be passed to __request_region(). As a fix, this patch doesn't update the parent resource pointer in the case we have to wait for a muxed region right after. Reported-and-tested-by: Vincent Pelletier <plr.vincent@gmail.com> Signed-off-by: Simon Guinot <simon.guinot@sequanux.org> Tested-by: Vincent Donnefort <vdonnefort@gmail.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 20 February 2016, 16:57:52 UTC
020ecbb Linus Torvalds 19 February 2016, 21:44:12 UTC Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 bugfixes from Ted Ts'o: "Miscellaneous ext4 bug fixes for v4.5" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: fix crashes in dioread_nolock mode ext4: fix bh->b_state corruption ext4: fix memleak in ext4_readdir() ext4: remove unused parameter "newblock" in convert_initialized_extent() ext4: don't read blocks from disk after extents being swapped ext4: fix potential integer overflow ext4: add a line break for proc mb_groups display ext4: ioctl: fix erroneous return value ext4: fix scheduling in atomic on group checksum failure ext4 crypto: move context consistency check to ext4_file_open() ext4 crypto: revalidate dentry after adding or removing the key 19 February 2016, 21:44:12 UTC
ce6b714 Linus Torvalds 19 February 2016, 21:40:42 UTC Merge branch 'for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs Pull btrfs fix from Chris Mason: "My for-linus-4.5 branch has a btrfs DIO error passing fix. I know how much you love DIO, so I'm going to suggest against reading it. We'll follow up with a patch to drop the error arg from dio_end_io in the next merge window." * 'for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: fix direct IO requests not reporting IO error to user space 19 February 2016, 21:40:42 UTC
87d9ac7 Linus Torvalds 19 February 2016, 21:36:00 UTC Merge branch 'akpm' (patches from Andrew) Merge fixes from Andrew Morton: "10 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: mm: slab: free kmem_cache_node after destroy sysfs file ipc/shm: handle removed segments gracefully in shm_mmap() MAINTAINERS: update Kselftest Framework mailing list devm_memremap_release(): fix memremap'd addr handling mm/hugetlb.c: fix incorrect proc nr_hugepages value mm, x86: fix pte_page() crash in gup_pte_range() fsnotify: turn fsnotify reaper thread into a workqueue job Revert "fsnotify: destroy marks with call_srcu instead of dedicated thread" mm: fix regression in remap_file_pages() emulation thp, dax: do not try to withdraw pgtable from non-anon VMA 19 February 2016, 21:36:00 UTC
23300f6 Linus Torvalds 19 February 2016, 16:40:05 UTC Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: "Here are some more arm64 fixes for 4.5. This has mostly come from Yang Shi, who saw some issues under -rt that also affect mainline. The rest of it is pretty small, but still worth having. We've got an old issue outstanding with valid_user_regs which will likely wait until 4.6 (since it would really benefit from some time in -next) and another issue with kasan and idle which should be fixed next week. Apart from that, pretty quiet here (and still no sign of the THP issue reported on s390...) Summary: - Allow EFI stub to use strnlen(), which is required by recent libfdt - Avoid smp_processor_id() in preempt context during unwinding - Avoid false Kasan warnings during unwinding - Ensure early devices are picked up by the IOMMU DMA ops - Avoid rebuilding the kernel for the 'install' target - Run fixup handlers for alignment faults on userspace access" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: mm: allow the kernel to handle alignment faults on user accesses arm64: kbuild: make "make install" not depend on vmlinux arm64: dma-mapping: fix handling of devices registered before arch_initcall arm64/efi: Make strnlen() available to the EFI namespace arm/arm64: crypto: assure that ECB modes don't require an IV arm64: make irq_stack_ptr more robust arm64: debug: re-enable irqs before sending breakpoint SIGTRAP arm64: disable kasan when accessing frame->fp in unwind_frame 19 February 2016, 16:40:05 UTC
ff5f168 Linus Torvalds 19 February 2016, 16:33:12 UTC Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Martin Schwidefsky: "Several bug fixes: - There are four different stack tracers, and three of them have bugs. For 4.5 the bugs are fixed and we prepare a cleanup patch for the next merge window. - Three bug fixes for the dasd driver in regard to parallel access volumes and the new max_dev_sectors block device queue limit - The irq restore optimization needs a fixup for memcpy_real - The diagnose trace code has a conflict with lockdep" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/dasd: fix performance drop s390/maccess: reduce stnsm instructions s390/diag: avoid lockdep recursion s390/dasd: fix refcount for PAV reassignment s390/dasd: prevent incorrect length error under z/VM after PAV changes s390: fix DAT off memory access, e.g. on kdump s390/oprofile: fix address range for asynchronous stack s390/perf_event: fix address range for asynchronous stack s390/stacktrace: add save_stack_trace_regs() s390/stacktrace: save full stack traces s390/stacktrace: add missing end marker s390/stacktrace: fix address ranges for asynchronous and panic stack s390/stacktrace: fix save_stack_trace_tsk() for current task 19 February 2016, 16:33:12 UTC
409ee13 Linus Torvalds 19 February 2016, 16:25:40 UTC Merge tag 'pinctrl-v4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull Pin control fixes from Linus Walleij: "Pin control fixes for the v4.5 series, all are individual driver fixes: - Fix the PXA2xx driver to export its init function so we do not break modular compiles. - Hide unused functions in the Nomadik driver. - Fix up direction control in the Mediatek driver. - Toggle the sunxi GPIO lines to input when you read them on the H3 GPIO controller, lest you only get garbage. - Fix up the number of settings in the MVEBU driver. - Fix a serious SMP race condition in the Samsung driver" * tag 'pinctrl-v4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: samsung: fix SMP race condition pinctrl: mvebu: fix num_settings in mpp group assignment pinctrl: sunxi: H3 requires irq_read_needs_mux pinctrl: mediatek: fix direction control issue pinctrl: nomadik: hide unused functions pinctrl: pxa: export pxa2xx_pinctrl_init() 19 February 2016, 16:25:40 UTC
9001b8e Linus Torvalds 19 February 2016, 16:01:41 UTC Merge tag 'sound-4.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "This update contains again a few more fixes for ALSA core stuff although it's no longer high flux: two race fixes in sequencer and one PCM race fix for non-atomic PCM ops. In addition, HD-audio gained a similar fix for race at reloading the driver" * tag 'sound-4.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: pcm: Fix rwsem deadlock for non-atomic PCM stream ALSA: seq: Fix double port list deletion ALSA: hda - Cancel probe work instead of flush at remove ALSA: seq: Fix leak of pool buffer at concurrent writes 19 February 2016, 16:01:41 UTC
52d7523 EunTaik Lee 16 February 2016, 04:44:35 UTC arm64: mm: allow the kernel to handle alignment faults on user accesses Although we don't expect to take alignment faults on access to normal memory, misbehaving (i.e. buggy) user code can pass MMIO pointers into system calls, leading to things like get_user accessing device memory. Rather than OOPS the kernel, allow any exception fixups to run and return something like -EFAULT back to userspace. This makes the behaviour more consistent with userspace, even though applications with access to device mappings can easily cause other issues if they try hard enough. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Eun Taik Lee <eun.taik.lee@samsung.com> [will: dropped __kprobes annotation and rewrote commit mesage] Signed-off-by: Will Deacon <will.deacon@arm.com> 19 February 2016, 12:20:37 UTC
8684fa3 Masahiro Yamada 19 February 2016, 06:05:50 UTC arm64: kbuild: make "make install" not depend on vmlinux For the same reason as commit 19514fc665ff ("arm, kbuild: make "make install" not depend on vmlinux"), the install targets should never trigger the rebuild of the kernel. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Will Deacon <will.deacon@arm.com> 19 February 2016, 10:33:35 UTC
74dae42 Jan Kara 19 February 2016, 05:33:21 UTC ext4: fix crashes in dioread_nolock mode Competing overwrite DIO in dioread_nolock mode will just overwrite pointer to io_end in the inode. This may result in data corruption or extent conversion happening from IO completion interrupt because we don't properly set buffer_defer_completion() when unlocked DIO races with locked DIO to unwritten extent. Since unlocked DIO doesn't need io_end for anything, just avoid allocating it and corrupting pointer from inode for locked DIO. A cleaner fix would be to avoid these games with io_end pointer from the inode but that requires more intrusive changes so we leave that for later. Cc: stable@vger.kernel.org Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Theodore Ts'o <tytso@mit.edu> 19 February 2016, 05:33:21 UTC
ed8ad83 Jan Kara 19 February 2016, 05:18:25 UTC ext4: fix bh->b_state corruption ext4 can update bh->b_state non-atomically in _ext4_get_block() and ext4_da_get_block_prep(). Usually this is fine since bh is just a temporary storage for mapping information on stack but in some cases it can be fully living bh attached to a page. In such case non-atomic update of bh->b_state can race with an atomic update which then gets lost. Usually when we are mapping bh and thus updating bh->b_state non-atomically, nobody else touches the bh and so things work out fine but there is one case to especially worry about: ext4_finish_bio() uses BH_Uptodate_Lock on the first bh in the page to synchronize handling of PageWriteback state. So when blocksize < pagesize, we can be atomically modifying bh->b_state of a buffer that actually isn't under IO and thus can race e.g. with delalloc trying to map that buffer. The result is that we can mistakenly set / clear BH_Uptodate_Lock bit resulting in the corruption of PageWriteback state or missed unlock of BH_Uptodate_Lock. Fix the problem by always updating bh->b_state bits atomically. CC: stable@vger.kernel.org Reported-by: Nikolay Borisov <kernel@kyup.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Theodore Ts'o <tytso@mit.edu> 19 February 2016, 05:18:25 UTC
4fbbed4 Rasmus Villemoes 15 February 2016, 18:41:46 UTC drm/nouveau: use post-decrement in error handling We need to use post-decrement to get the dma_map_page undone also for i==0, and to avoid some very unpleasant behaviour if dma_map_page failed already at i==0. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com> 19 February 2016, 03:36:05 UTC
5fff80b Maarten Lankhorst 17 February 2016, 07:32:05 UTC drm/atomic: Allow for holes in connector state, v2. Because we record connector_mask using 1 << drm_connector_index now the connector_mask should stay the same even when other connectors are removed. This was not the case with MST, in that case when removing a connector all other connectors may change their index. This is fixed by waiting until the first get_connector_state to allocate connector_state, and force reallocation when state is too small. As a side effect connector arrays no longer have to be preallocated, and can be allocated on first use which means a less allocations in the page flip only path. Changes since v1: - Whitespace. (Ville) - Call ida_remove when destroying the connector. (Ville) - u32 alloc -> int. (Ville) Fixes: 14de6c44d149 ("drm/atomic: Remove drm_atomic_connectors_for_crtc.") Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Lyude <cpaul@redhat.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com> 19 February 2016, 03:24:03 UTC
4462b4b Stephen Boyd 19 February 2016, 03:07:44 UTC clk: gpio: Really allow an optional clock= DT property We mis-merged the original patch from Russell here and so the patch went almost all the way, except that we still failed to probe when there wasn't a clocks property in the DT node. Allow that case by making a negative value from of_clk_get_parent_count() into "no parents", like the original patch did. Fixes: 7ed88aa2efa5 ("clk: fix clk-gpio.c with optional clock= DT property") Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Michael Turquette <mturquette@baylibre.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> 19 February 2016, 03:10:22 UTC
5441ea1 Dave Airlie 19 February 2016, 02:50:00 UTC Merge tag 'drm-vc4-fixes-2016-02-17' of github.com:anholt/linux into drm-fixes This pull request fixes GPU reset (which was disabled shortly after V3D integration due to build breakage) and waits for idle in the presence of signals (which X likes to do a lot). * tag 'drm-vc4-fixes-2016-02-17' of github.com:anholt/linux: drm/vc4: Use runtime PM to power cycle the device when the GPU hangs. drm/vc4: Enable runtime PM. drm/vc4: Fix spurious GPU resets due to BO reuse. drm/vc4: Drop error message on seqno wait timeouts. drm/vc4: Fix -ERESTARTSYS error return from BO waits. drm/vc4: Return an ERR_PTR from BO creation instead of NULL. drm/vc4: Fix the clear color for the first tile rendered. drm/vc4: Validate that WAIT_BO padding is cleared. 19 February 2016, 02:50:00 UTC
aaa7dd2 Dave Airlie 19 February 2016, 02:49:03 UTC Merge branch 'drm-fixes-4.5' of git://people.freedesktop.org/~agd5f/linux into drm-fixes Just two small fixes in the ttm_tt_populate error handling; one for radeon, one for amdgpu. * 'drm-fixes-4.5' of git://people.freedesktop.org/~agd5f/linux: drm/radeon: use post-decrement in error handling drm/amdgpu: use post-decrement in error handling 19 February 2016, 02:49:03 UTC
42412b1 Dave Airlie 19 February 2016, 02:43:03 UTC Merge tag 'drm-intel-fixes-2016-02-18' of git://anongit.freedesktop.org/drm-intel into drm-fixes single g4x hpd fix. * tag 'drm-intel-fixes-2016-02-18' of git://anongit.freedesktop.org/drm-intel: drm/i915: Fix hpd live status bits for g4x 19 February 2016, 02:43:03 UTC
705d43d Linus Torvalds 19 February 2016, 00:34:15 UTC Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching Pull livepatching fixes from Jiri Kosina: - regression (from 4.4) fix for ordering issue, introduced by an earlier ftrace change, that broke live patching of modules. The fix replaces the ftrace module notifier by direct call in order to make the ordering guaranteed and well-defined. The patch, from Jessica Yu, has been acked both by Steven and Rusty - error message fix from Miroslav Benes * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching: ftrace/module: remove ftrace module notifier livepatch: change the error message in asm/livepatch.h header files 19 February 2016, 00:34:15 UTC
dd8fc10 Linus Torvalds 19 February 2016, 00:24:48 UTC Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Two simple fixes. One prevents a soft lockup on some target removal scenarios and the other prevents us trying to probe the marvell console device, which causes it to time out and need the bus resetting" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: fix soft lockup in scsi_remove_target() on module removal SCSI: Add Marvell configuration device to VPD blacklist 19 February 2016, 00:24:48 UTC
52b4b95 Dmitry Safonov 17 February 2016, 21:11:37 UTC mm: slab: free kmem_cache_node after destroy sysfs file When slub_debug alloc_calls_show is enabled we will try to track location and user of slab object on each online node, kmem_cache_node structure and cpu_cache/cpu_slub shouldn't be freed till there is the last reference to sysfs file. This fixes the following panic: BUG: unable to handle kernel NULL pointer dereference at 0000000000000020 IP: list_locations+0x169/0x4e0 PGD 257304067 PUD 438456067 PMD 0 Oops: 0000 [#1] SMP CPU: 3 PID: 973074 Comm: cat ve: 0 Not tainted 3.10.0-229.7.2.ovz.9.30-00007-japdoll-dirty #2 9.30 Hardware name: DEPO Computers To Be Filled By O.E.M./H67DE3, BIOS L1.60c 07/14/2011 task: ffff88042a5dc5b0 ti: ffff88037f8d8000 task.ti: ffff88037f8d8000 RIP: list_locations+0x169/0x4e0 Call Trace: alloc_calls_show+0x1d/0x30 slab_attr_show+0x1b/0x30 sysfs_read_file+0x9a/0x1a0 vfs_read+0x9c/0x170 SyS_read+0x58/0xb0 system_call_fastpath+0x16/0x1b Code: 5e 07 12 00 b9 00 04 00 00 3d 00 04 00 00 0f 4f c1 3d 00 04 00 00 89 45 b0 0f 84 c3 00 00 00 48 63 45 b0 49 8b 9c c4 f8 00 00 00 <48> 8b 43 20 48 85 c0 74 b6 48 89 df e8 46 37 44 00 48 8b 53 10 CR2: 0000000000000020 Separated __kmem_cache_release from __kmem_cache_shutdown which now called on slab_kmem_cache_release (after the last reference to sysfs file object has dropped). Reintroduced locking in free_partial as sysfs file might access cache's partial list after shutdowning - partial revert of the commit 69cb8e6b7c29 ("slub: free slabs without holding locks"). Zap __remove_partial and use remove_partial (w/o underscores) as free_partial now takes list_lock which s partial revert for commit 1e4dd9461fab ("slub: do not assert not having lock in removing freed partial") Signed-off-by: Dmitry Safonov <dsafonov@virtuozzo.com> Suggested-by: Vladimir Davydov <vdavydov@virtuozzo.com> Acked-by: Vladimir Davydov <vdavydov@virtuozzo.com> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 19 February 2016, 00:23:24 UTC
1ac0b6d Kirill A. Shutemov 17 February 2016, 21:11:35 UTC ipc/shm: handle removed segments gracefully in shm_mmap() remap_file_pages(2) emulation can reach file which represents removed IPC ID as long as a memory segment is mapped. It breaks expectations of IPC subsystem. Test case (rewritten to be more human readable, originally autogenerated by syzkaller[1]): #define _GNU_SOURCE #include <stdlib.h> #include <sys/ipc.h> #include <sys/mman.h> #include <sys/shm.h> #define PAGE_SIZE 4096 int main() { int id; void *p; id = shmget(IPC_PRIVATE, 3 * PAGE_SIZE, 0); p = shmat(id, NULL, 0); shmctl(id, IPC_RMID, NULL); remap_file_pages(p, 3 * PAGE_SIZE, 0, 7, 0); return 0; } The patch changes shm_mmap() and code around shm_lock() to propagate locking error back to caller of shm_mmap(). [1] http://github.com/google/syzkaller Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reported-by: Dmitry Vyukov <dvyukov@google.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 19 February 2016, 00:23:24 UTC
64f0085 Shuah Khan 17 February 2016, 21:11:32 UTC MAINTAINERS: update Kselftest Framework mailing list Kselftest Framework now has a dedicated mailing list linux-kselftest. Update the entry in MAINTAINERS file. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 19 February 2016, 00:23:24 UTC
9273a8b Toshi Kani 17 February 2016, 21:11:29 UTC devm_memremap_release(): fix memremap'd addr handling The pmem driver calls devm_memremap() to map a persistent memory range. When the pmem driver is unloaded, this memremap'd range is not released so the kernel will leak a vma. Fix devm_memremap_release() to handle a given memremap'd address properly. Signed-off-by: Toshi Kani <toshi.kani@hpe.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Matthew Wilcox <willy@linux.intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 19 February 2016, 00:23:24 UTC
f8b7481 Vaishali Thakkar 17 February 2016, 21:11:26 UTC mm/hugetlb.c: fix incorrect proc nr_hugepages value Currently incorrect default hugepage pool size is reported by proc nr_hugepages when number of pages for the default huge page size is specified twice. When multiple huge page sizes are supported, /proc/sys/vm/nr_hugepages indicates the current number of pre-allocated huge pages of the default size. Basically /proc/sys/vm/nr_hugepages displays default_hstate-> max_huge_pages and after boot time pre-allocation, max_huge_pages should equal the number of pre-allocated pages (nr_hugepages). Test case: Note that this is specific to x86 architecture. Boot the kernel with command line option 'default_hugepagesz=1G hugepages=X hugepagesz=2M hugepages=Y hugepagesz=1G hugepages=Z'. After boot, 'cat /proc/sys/vm/nr_hugepages' and 'sysctl -a | grep hugepages' returns the value X. However, dmesg output shows that Z huge pages were pre-allocated. So, the root cause of the problem here is that the global variable default_hstate_max_huge_pages is set if a default huge page size is specified (directly or indirectly) on the command line. After the command line processing in hugetlb_init, if default_hstate_max_huge_pages is set, the value is assigned to default_hstae.max_huge_pages. However, default_hstate.max_huge_pages may have already been set based on the number of pre-allocated huge pages of default_hstate size. The solution to this problem is if hstate->max_huge_pages is already set then it should not set as a result of global max_huge_pages value. Basically if the value of the variable hugepages is set multiple times on a command line for a specific supported hugepagesize then proc layer should consider the last specified value. Signed-off-by: Vaishali Thakkar <vaishali.thakkar@oracle.com> Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 19 February 2016, 00:23:24 UTC
457a98b Hugh Dickins 17 February 2016, 21:11:23 UTC mm, x86: fix pte_page() crash in gup_pte_range() Commit 3565fce3a659 ("mm, x86: get_user_pages() for dax mappings") has moved up the pte_page(pte) in x86's fast gup_pte_range(), for no discernible reason: put it back where it belongs, after the pte_flags check and the pfn_valid cross-check. That may be the cause of the NULL pointer dereference in gup_pte_range(), seen when vfio called vaddr_get_pfn() when starting a qemu-kvm based VM. Signed-off-by: Hugh Dickins <hughd@google.com> Reported-by: Michael Long <Harn-Solo@gmx.de> Tested-by: Michael Long <Harn-Solo@gmx.de> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 19 February 2016, 00:23:24 UTC
0918f1c Jeff Layton 17 February 2016, 21:11:21 UTC fsnotify: turn fsnotify reaper thread into a workqueue job We don't require a dedicated thread for fsnotify cleanup. Switch it over to a workqueue job instead that runs on the system_unbound_wq. In the interest of not thrashing the queued job too often when there are a lot of marks being removed, we delay the reaper job slightly when queueing it, to allow several to gather on the list. Signed-off-by: Jeff Layton <jeff.layton@primarydata.com> Tested-by: Eryu Guan <guaneryu@gmail.com> Reviewed-by: Jan Kara <jack@suse.cz> Cc: Eric Paris <eparis@parisplace.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 19 February 2016, 00:23:24 UTC
13d34ac Jeff Layton 17 February 2016, 21:11:18 UTC Revert "fsnotify: destroy marks with call_srcu instead of dedicated thread" This reverts commit c510eff6beba ("fsnotify: destroy marks with call_srcu instead of dedicated thread"). Eryu reported that he was seeing some OOM kills kick in when running a testcase that adds and removes inotify marks on a file in a tight loop. The above commit changed the code to use call_srcu to clean up the marks. While that does (in principle) work, the srcu callback job is limited to cleaning up entries in small batches and only once per jiffy. It's easily possible to overwhelm that machinery with too many call_srcu callbacks, and Eryu's reproduer did just that. There's also another potential problem with using call_srcu here. While you can obviously sleep while holding the srcu_read_lock, the callbacks run under local_bh_disable, so you can't sleep there. It's possible when putting the last reference to the fsnotify_mark that we'll end up putting a chain of references including the fsnotify_group, uid, and associated keys. While I don't see any obvious ways that that could occurs, it's probably still best to avoid using call_srcu here after all. This patch reverts the above patch. A later patch will take a different approach to eliminated the dedicated thread here. Signed-off-by: Jeff Layton <jeff.layton@primarydata.com> Reported-by: Eryu Guan <guaneryu@gmail.com> Tested-by: Eryu Guan <guaneryu@gmail.com> Cc: Jan Kara <jack@suse.com> Cc: Eric Paris <eparis@parisplace.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 19 February 2016, 00:23:24 UTC
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