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2018-04-02Merge branch 'for-4.17/block' into for-4.17/mergedfor-4.17/mergedJens Axboe
* for-4.17/block: (139 commits) blk-mq: Directly schedule q->timeout_work when aborting a request blktrace: fix comment in blktrace_api.h lightnvm: remove function name in strings lightnvm: pblk: remove some unnecessary NULL checks lightnvm: pblk: don't recover unwritten lines lightnvm: pblk: implement 2.0 support lightnvm: pblk: implement get log report chunk lightnvm: pblk: rename ppaf* to addrf* lightnvm: pblk: check for supported version lightnvm: implement get log report chunk helpers lightnvm: make address conversions depend on generic device lightnvm: add support for 2.0 address format lightnvm: normalize geometry nomenclature lightnvm: complete geo structure with maxoc* lightnvm: add shorten OCSSD version in geo lightnvm: add minor version to generic geometry lightnvm: simplify geometry structure lightnvm: pblk: refactor init/exit sequences lightnvm: Avoid validation of default op value lightnvm: centralize permission check for lightnvm ioctl ... Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-04-02blk-mq: Directly schedule q->timeout_work when aborting a requestfor-4.17/block-20180402for-4.17/blockTejun Heo
Request abortion is performed by overriding deadline to now and scheduling timeout handling immediately. For the latter part, the code was using mod_timer(timeout, 0) which can't guarantee that the timer runs afterwards. Let's schedule the underlying work item directly instead. This fixes the hangs during probing reported by Sitsofe but it isn't yet clear to me how the failure can happen reliably if it's just the above described race condition. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Sitsofe Wheeler <sitsofe@gmail.com> Reported-by: Meelis Roos <mroos@linux.ee> Fixes: 358f70da49d7 ("blk-mq: make blk_abort_request() trigger timeout path") Cc: stable@vger.kernel.org # v4.16 Link: http://lkml.kernel.org/r/CALjAwxh-PVYFnYFCJpGOja+m5SzZ8Sa4J7ohxdK=r8NyOF-EMA@mail.gmail.com Link: http://lkml.kernel.org/r/alpine.LRH.2.21.1802261049140.4893@math.ut.ee Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-04-01Linux 4.16Linus Torvalds
2018-03-31Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "Two fixlets" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/hwbp: Simplify the perf-hwbp code, fix documentation perf/x86/intel: Fix linear IP of PEBS real_ip on Haswell and later CPUs
2018-03-31Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "Two UV platform fixes, and a kbuild fix" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/platform/UV: Fix critical UV MMR address error x86/platform/uv/BAU: Add APIC idt entry x86/purgatory: Avoid creating stray .<pid>.d files, remove -MD from KBUILD_CFLAGS
2018-03-31Merge branch 'x86-pti-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 PTI fixes from Ingo Molnar: "Two fixes: a relatively simple objtool fix that makes Clang built kernels work with ORC debug info, plus an alternatives macro fix" * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/alternatives: Fixup alternative_call_2 objtool: Add Clang support
2018-03-30Merge tag 'kbuild-fixes-v4.16-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - fix missed rebuild of TRIM_UNUSED_KSYMS - fix rpm-pkg for GNU tar >= 1.29 - include scripts/dtc/include-prefixes/* to kernel header deb-pkg - add -no-integrated-as option ealier to fix building with Clang - fix netfilter Makefile for parallel building * tag 'kbuild-fixes-v4.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: netfilter: nf_nat_snmp_basic: add correct dependency to Makefile kbuild: rpm-pkg: Support GNU tar >= 1.29 builddeb: Fix header package regarding dtc source links kbuild: set no-integrated-as before incl. arch Makefile kbuild: make scripts/adjust_autoksyms.sh robust against timestamp races
2018-03-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Fix RCU locking in xfrm_local_error(), from Taehee Yoo. 2) Fix return value assignments and thus error checking in iwl_mvm_start_ap_ibss(), from Johannes Berg. 3) Don't count header length twice in vti4, from Stefano Brivio. 4) Fix deadlock in rt6_age_examine_exception, from Eric Dumazet. 5) Fix out-of-bounds access in nf_sk_lookup_slow{v4,v6}() from Subash Abhinov. 6) Check nladdr size in netlink_connect(), from Alexander Potapenko. 7) VF representor SQ numbers are 32 not 16 bits, in mlx5 driver, from Or Gerlitz. 8) Out of bounds read in skb_network_protocol(), from Eric Dumazet. 9) r8169 driver sets driver data pointer after register_netdev() which is too late. Fix from Heiner Kallweit. 10) Fix memory leak in mlx4 driver, from Moshe Shemesh. 11) The multi-VLAN decap fix added a regression when dealing with device that lack a MAC header, such as tun. Fix from Toshiaki Makita. 12) Fix integer overflow in dynamic interrupt coalescing code. From Tal Gilboa. 13) Use after free in vrf code, from David Ahern. 14) IPV6 route leak between VRFs fix, also from David Ahern. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (81 commits) net: mvneta: fix enable of all initialized RXQs net/ipv6: Fix route leaking between VRFs vrf: Fix use after free and double free in vrf_finish_output ipv6: sr: fix seg6 encap performances with TSO enabled net/dim: Fix int overflow vlan: Fix vlan insertion for packets without ethernet header net: Fix untag for vlan packets without ethernet header atm: iphase: fix spelling mistake: "Receiverd" -> "Received" vhost: validate log when IOTLB is enabled qede: Do not drop rx-checksum invalidated packets. hv_netvsc: enable multicast if necessary ip_tunnel: Resolve ipsec merge conflict properly. lan78xx: Crash in lan78xx_writ_reg (Workqueue: events lan78xx_deferred_multicast_write) qede: Fix barrier usage after tx doorbell write. vhost: correctly remove wait queue during poll failure net/mlx4_core: Fix memory leak while delete slave's resources net/mlx4_en: Fix mixed PFC and Global pause user control requests net/smc: use announced length in sock_recvmsg() llc: properly handle dev_queue_xmit() return value strparser: Fix sign of err codes ...
2018-03-30blktrace: fix comment in blktrace_api.hSouvik Banerjee
The `__u64 time` field of the blk_io_trace struct refers to the time in nanoseconds, not in microseconds. It is set in __blk_add_trace, which does the following: t->time = ktime_to_ns(ktime_get()); ktime_to_ns returns ktime_t in nanoseconds, not microseconds. Signed-off-by: Souvik Banerjee <souvik1997@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-30net: mvneta: fix enable of all initialized RXQsYelena Krivosheev
In mvneta_port_up() we enable relevant RX and TX port queues by write queues bit map to an appropriate register. q_map must be ZERO in the beginning of this process. Signed-off-by: Yelena Krivosheev <yelena@marvell.com> Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com> Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-30net/ipv6: Fix route leaking between VRFsDavid Ahern
Donald reported that IPv6 route leaking between VRFs is not working. The root cause is the strict argument in the call to rt6_lookup when validating the nexthop spec. ip6_route_check_nh validates the gateway and device (if given) of a route spec. It in turn could call rt6_lookup (e.g., lookup in a given table did not succeed so it falls back to a full lookup) and if so sets the strict argument to 1. That means if the egress device is given, the route lookup needs to return a result with the same device. This strict requirement does not work with VRFs (IPv4 or IPv6) because the oif in the flow struct is overridden with the index of the VRF device to trigger a match on the l3mdev rule and force the lookup to its table. The right long term solution is to add an l3mdev index to the flow struct such that the oif is not overridden. That solution will not backport well, so this patch aims for a simpler solution to relax the strict argument if the route spec device is an l3mdev slave. As done in other places, use the FLOWI_FLAG_SKIP_NH_OIF to know that the RT6_LOOKUP_F_IFACE flag needs to be removed. Fixes: ca254490c8df ("net: Add VRF support to IPv6 stack") Reported-by: Donald Sharp <sharpd@cumulusnetworks.com> Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-30vrf: Fix use after free and double free in vrf_finish_outputDavid Ahern
Miguel reported an skb use after free / double free in vrf_finish_output when neigh_output returns an error. The vrf driver should return after the call to neigh_output as it takes over the skb on error path as well. Patch is a simplified version of Miguel's patch which was written for 4.9, and updated to top of tree. Fixes: 8f58336d3f78a ("net: Add ethernet header for pass through VRF device") Signed-off-by: Miguel Fadon Perlines <mfadon@teldat.com> Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-30ipv6: sr: fix seg6 encap performances with TSO enabledDavid Lebrun
Enabling TSO can lead to abysmal performances when using seg6 in encap mode, such as with the ixgbe driver. This patch adds a call to iptunnel_handle_offloads() to remove the encapsulation bit if needed. Before: root@comp4-seg6bpf:~# iperf3 -c fc00::55 Connecting to host fc00::55, port 5201 [ 4] local fc45::4 port 36592 connected to fc00::55 port 5201 [ ID] Interval Transfer Bandwidth Retr Cwnd [ 4] 0.00-1.00 sec 196 KBytes 1.60 Mbits/sec 47 6.66 KBytes [ 4] 1.00-2.00 sec 304 KBytes 2.49 Mbits/sec 100 5.33 KBytes [ 4] 2.00-3.00 sec 284 KBytes 2.32 Mbits/sec 92 5.33 KBytes After: root@comp4-seg6bpf:~# iperf3 -c fc00::55 Connecting to host fc00::55, port 5201 [ 4] local fc45::4 port 43062 connected to fc00::55 port 5201 [ ID] Interval Transfer Bandwidth Retr Cwnd [ 4] 0.00-1.00 sec 1.03 GBytes 8.89 Gbits/sec 0 743 KBytes [ 4] 1.00-2.00 sec 1.03 GBytes 8.87 Gbits/sec 0 743 KBytes [ 4] 2.00-3.00 sec 1.03 GBytes 8.87 Gbits/sec 0 743 KBytes Reported-by: Tom Herbert <tom@quantonium.net> Fixes: 6c8702c60b88 ("ipv6: sr: add support for SRH encapsulation and injection with lwtunnels") Signed-off-by: David Lebrun <dlebrun@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-30Merge tag 'ceph-for-4.16-rc8' of git://github.com/ceph/ceph-clientLinus Torvalds
Pull ceph fix from Ilya Dryomov: "A fix for a dio-enabled loop on ceph deadlock from Zheng, marked for stable" * tag 'ceph-for-4.16-rc8' of git://github.com/ceph/ceph-client: ceph: only dirty ITER_IOVEC pages for direct read
2018-03-30Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM fixes from Radim Krčmář: "PPC: - Fix a bug causing occasional machine check exceptions on POWER8 hosts (introduced in 4.16-rc1) x86: - Fix a guest crashing regression with nested VMX and restricted guest (introduced in 4.16-rc1) - Fix dependency check for pv tlb flush (the wrong dependency that effectively disabled the feature was added in 4.16-rc4, the original feature in 4.16-rc1, so it got decent testing)" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: Fix pv tlb flush dependencies KVM: nVMX: sync vmcs02 segment regs prior to vmx_set_cr0 KVM: PPC: Book3S HV: Fix duplication of host SLB entries
2018-03-30Merge branch 'i2c/for-current' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fix from Wolfram Sang: "A simple but worthwhile I2C driver fix for 4.16" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: i2c-stm32f7: fix no check on returned setup
2018-03-30Merge tag 'sound-4.16' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "Very small fixes (all one-liners) at this time. One fix is for a PCM core stuff to correct the mmap behavior on non-x86. It doesn't show on most machines but mostly only for exotic non-interleaved formats" * tag 'sound-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: pcm: potential uninitialized return values ALSA: pcm: Use dma_bytes as size parameter in dma_mmap_coherent() ALSA: usb-audio: Add native DSD support for TEAC UD-301
2018-03-30net/dim: Fix int overflowTal Gilboa
When calculating difference between samples, the values are multiplied by 100. Large values may cause int overflow when multiplied (usually on first iteration). Fixed by forcing 100 to be of type unsigned long. Fixes: 4c4dbb4a7363 ("net/mlx5e: Move dynamic interrupt coalescing code to include/linux") Signed-off-by: Tal Gilboa <talgi@mellanox.com> Reviewed-by: Andy Gospodarek <gospo@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-30Merge branch 'vlan-fix'David S. Miller
Toshiaki Makita says: ==================== Fix vlan tag handling for vlan packets without ethernet headers Eric Dumazet reported syzbot found a new bug which leads to underflow of size argument of memmove(), causing crash[1]. This can be triggered by tun devices. The underflow happened because skb_vlan_untag() did not expect vlan packets without ethernet headers, and tun can produce such packets. I also checked vlan_insert_inner_tag() and found a similar bug. This series fixes these problems. [1] https://marc.info/?l=linux-netdev&m=152221753920510&w=2 ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-30vlan: Fix vlan insertion for packets without ethernet headerToshiaki Makita
In some situation vlan packets do not have ethernet headers. One example is packets from tun devices. Users can specify vlan protocol in tun_pi field instead of IP protocol. When we have a vlan device with reorder_hdr disabled on top of the tun device, such packets from tun devices are untagged in skb_vlan_untag() and vlan headers will be inserted back in vlan_insert_inner_tag(). vlan_insert_inner_tag() however did not expect packets without ethernet headers, so in such a case size argument for memmove() underflowed. We don't need to copy headers for packets which do not have preceding headers of vlan headers, so skip memmove() in that case. Also don't write vlan protocol in skb->data when it does not have enough room for it. Fixes: cbe7128c4b92 ("vlan: Fix out of order vlan headers with reorder header off") Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-30net: Fix untag for vlan packets without ethernet headerToshiaki Makita
In some situation vlan packets do not have ethernet headers. One example is packets from tun devices. Users can specify vlan protocol in tun_pi field instead of IP protocol, and skb_vlan_untag() attempts to untag such packets. skb_vlan_untag() (more precisely, skb_reorder_vlan_header() called by it) however did not expect packets without ethernet headers, so in such a case size argument for memmove() underflowed and triggered crash. ==== BUG: unable to handle kernel paging request at ffff8801cccb8000 IP: __memmove+0x24/0x1a0 arch/x86/lib/memmove_64.S:43 PGD 9cee067 P4D 9cee067 PUD 1d9401063 PMD 1cccb7063 PTE 2810100028101 Oops: 000b [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 17663 Comm: syz-executor2 Not tainted 4.16.0-rc7+ #368 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__memmove+0x24/0x1a0 arch/x86/lib/memmove_64.S:43 RSP: 0018:ffff8801cc046e28 EFLAGS: 00010287 RAX: ffff8801ccc244c4 RBX: fffffffffffffffe RCX: fffffffffff6c4c2 RDX: fffffffffffffffe RSI: ffff8801cccb7ffc RDI: ffff8801cccb8000 RBP: ffff8801cc046e48 R08: ffff8801ccc244be R09: ffffed0039984899 R10: 0000000000000001 R11: ffffed0039984898 R12: ffff8801ccc244c4 R13: ffff8801ccc244c0 R14: ffff8801d96b7c06 R15: ffff8801d96b7b40 FS: 00007febd562d700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff8801cccb8000 CR3: 00000001ccb2f006 CR4: 00000000001606e0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: memmove include/linux/string.h:360 [inline] skb_reorder_vlan_header net/core/skbuff.c:5031 [inline] skb_vlan_untag+0x470/0xc40 net/core/skbuff.c:5061 __netif_receive_skb_core+0x119c/0x3460 net/core/dev.c:4460 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4627 netif_receive_skb_internal+0x10b/0x670 net/core/dev.c:4701 netif_receive_skb+0xae/0x390 net/core/dev.c:4725 tun_rx_batched.isra.50+0x5ee/0x870 drivers/net/tun.c:1555 tun_get_user+0x299e/0x3c20 drivers/net/tun.c:1962 tun_chr_write_iter+0xb9/0x160 drivers/net/tun.c:1990 call_write_iter include/linux/fs.h:1782 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x684/0x970 fs/read_write.c:482 vfs_write+0x189/0x510 fs/read_write.c:544 SYSC_write fs/read_write.c:589 [inline] SyS_write+0xef/0x220 fs/read_write.c:581 do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x454879 RSP: 002b:00007febd562cc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007febd562d6d4 RCX: 0000000000454879 RDX: 0000000000000157 RSI: 0000000020000180 RDI: 0000000000000014 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000006b0 R14: 00000000006fc120 R15: 0000000000000000 Code: 90 90 90 90 90 90 90 48 89 f8 48 83 fa 20 0f 82 03 01 00 00 48 39 fe 7d 0f 49 89 f0 49 01 d0 49 39 f8 0f 8f 9f 00 00 00 48 89 d1 <f3> a4 c3 48 81 fa a8 02 00 00 72 05 40 38 fe 74 3b 48 83 ea 20 RIP: __memmove+0x24/0x1a0 arch/x86/lib/memmove_64.S:43 RSP: ffff8801cc046e28 CR2: ffff8801cccb8000 ==== We don't need to copy headers for packets which do not have preceding headers of vlan headers, so skip memmove() in that case. Fixes: 4bbb3e0e8239 ("net: Fix vlan untag for bridge and vlan_dev with reorder_hdr off") Reported-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-30atm: iphase: fix spelling mistake: "Receiverd" -> "Received"Colin Ian King
Trivial fix to spelling mistake in message text Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-30ceph: only dirty ITER_IOVEC pages for direct readYan, Zheng
If a page is already locked, attempting to dirty it leads to a deadlock in lock_page(). This is what currently happens to ITER_BVEC pages when a dio-enabled loop device is backed by ceph: $ losetup --direct-io /dev/loop0 /mnt/cephfs/img $ xfs_io -c 'pread 0 4k' /dev/loop0 Follow other file systems and only dirty ITER_IOVEC pages. Cc: stable@kernel.org Signed-off-by: "Yan, Zheng" <zyan@redhat.com> Reviewed-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-03-29Merge tag 'for-4.16/dm-fixes-4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper fixes from Mike Snitzer: - Fix a DM multipath regression introduced in a v4.16-rc6 commit: restore support for loading, and attaching, scsi_dh modules during multipath table load. Otherwise some users may find themselves unable to boot, as was reported today: https://marc.info/?l=linux-scsi&m=152231276114962&w=2 - Fix a DM core ioctl permission check regression introduced in a v4.16-rc5 commit. * tag 'for-4.16/dm-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm: fix dropped return code from dm_get_bdev_for_ioctl dm mpath: fix support for loading scsi_dh modules during table load
2018-03-29Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds
Pull rdma fixes from Jason Gunthorpe: "It has been fairly silent lately on our -rc front. Big queue of patches on the mailing list going to for-next though. Bug fixes: - qedr driver bugfixes causing application hangs, wrong uapi errnos, and a race condition - three syzkaller found bugfixes in the ucma uapi Regression fixes for things introduced in 4.16: - Crash on error introduced in mlx5 UMR flow - Crash on module unload/etc introduced by bad interaction of restrack and mlx5 patches this cycle - Typo in a two line syzkaller bugfix causing a bad regression - Coverity report of nonsense code in hns driver" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: RDMA/ucma: Introduce safer rdma_addr_size() variants RDMA/hns: ensure for-loop actually iterates and free's buffers RDMA/ucma: Check that device exists prior to accessing it RDMA/ucma: Check that device is connected prior to access it RDMA/rdma_cm: Fix use after free race with process_one_req RDMA/qedr: Fix QP state initialization race RDMA/qedr: Fix rc initialization on CNQ allocation failure RDMA/qedr: fix QP's ack timeout configuration RDMA/ucma: Correct option size check using optlen RDMA/restrack: Move restrack_clean to be symmetrical to restrack_init IB/mlx5: Don't clean uninitialized UMR resources
2018-03-29Merge tag 'mtd/fixes-for-4.16' of git://git.infradead.org/linux-mtdLinus Torvalds
Pull MTD fixes from Boris Brezillon: "Two fixes, one in the atmel NAND driver and another one in the CFI/JEDEC code. Summary: - Fix a bug in Atmel ECC engine driver - Fix a bug in the CFI/JEDEC driver" * tag 'mtd/fixes-for-4.16' of git://git.infradead.org/linux-mtd: mtd: jedec_probe: Fix crash in jedec_read_mfr() mtd: nand: atmel: Fix get_sectorsize() function
2018-03-29dm: fix dropped return code from dm_get_bdev_for_ioctlMike Snitzer
dm_get_bdev_for_ioctl()'s return of 0 or 1 must be the result from prepare_ioctl (1 means the ioctl was issued to a partition, 0 means it wasn't). Unfortunately commit 519049afea ("dm: use blkdev_get rather than bdgrab when issuing pass-through ioctl") reused the variable 'r' to store the return from blkdev_get() that follows prepare_ioctl() -- whereby dropping prepare_ioctl()'s result on the floor. This can lead to an ioctl or persistent reservation being issued to a partition going unnoticed, which implies the extra permission check for CAP_SYS_RAWIO is skipped. Fix this by using a different variable to store blkdev_get()'s return. Fixes: 519049afea ("dm: use blkdev_get rather than bdgrab when issuing pass-through ioctl") Reported-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2018-03-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller
Daniel Borkman says: ==================== pull-request: bpf 2018-03-29 The following pull-request contains BPF updates for your *net* tree. The main changes are: 1) Fix nfp to properly check max insn count while emitting instructions in the JIT which was wrongly comparing bytes against number of instructions before, from Jakub. 2) Fix for bpftool to avoid usage of hex numbers in JSON output since JSON doesn't accept hex numbers with 0x prefix, also from Jakub. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-29lightnvm: remove function name in stringsMatias Bjørling
For the sysfs functions, the function names are embedded into their error strings. If the function name later changes, the string may not be updated accordingly. Update the strings to use __func__ to avoid this. Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: pblk: remove some unnecessary NULL checksDan Carpenter
Smatch complains that flush_workqueue() dereferences the work queue pointer but then we check if it's NULL on the next line when it's too late. These NULL checks can be removed because the module won't load if we can't allocate the work queues. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: pblk: don't recover unwritten linesHans Holmberg
If the line has not been written to, we should not try to recover any data from it, so check the state of the chunks in the line before attempting to read smeta. Signed-off-by: Hans Holmberg <hans.holmberg@cnexlabs.com> Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: pblk: implement 2.0 supportJavier González
Implement 2.0 support in pblk. This includes the address formatting and mapping paths, as well as the sysfs entries for them. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: pblk: implement get log report chunkJavier González
In preparation of pblk supporting 2.0, implement the get log report chunk in pblk. Also, define the chunk states as given in the 2.0 spec. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: pblk: rename ppaf* to addrf*Javier González
In preparation for 2.0 support in pblk, rename variables referring to the address format to addrf and reserve ppaf for the 1.2 path. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: pblk: check for supported versionJavier González
At this point, only 1.2 spec is supported, thus check for it. Also, since device-side L2P is only supported in the 1.2 spec, make sure to only check its value under 1.2. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: implement get log report chunk helpersJavier González
The 2.0 spec provides a report chunk log page that can be retrieved using the stangard nvme get log page. This replaces the dedicated get/put bad block table in 1.2. This patch implements the helper functions to allow targets retrieve the chunk metadata using get log page. It makes nvme_get_log_ext available outside of nvme core so that we can use it form lightnvm. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: make address conversions depend on generic deviceJavier González
On address conversions, use the generic device, instead of the target device. This allows to use conversions outside of the target's realm. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: add support for 2.0 address formatJavier González
Add support for 2.0 address format. Also, align address bits for 1.2 and 2.0 to be able to operate on channel and luns without requiring a format conversion. Use a generic address format for this purpose. Also, convert the generic operations to the generic format in pblk. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: normalize geometry nomenclatureJavier González
Normalize nomenclature for naming channels, luns, chunks, planes and sectors as well as derivations in order to improve readability. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: complete geo structure with maxoc*Javier González
Complete the generic geometry structure with the maxoc and maxocpu felds, present in the 2.0 spec. Also, expose them through sysfs. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: add shorten OCSSD version in geoJavier González
Create a shorten version to use in the generic geometry. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: add minor version to generic geometryJavier González
Separate the version between major and minor on the generic geometry and represent it through sysfs in the 2.0 path. The 1.2 path only shows the major version to preserve the existing user space interface. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: simplify geometry structureJavier González
Currently, the device geometry is stored redundantly in the nvm_id and nvm_geo structures at a device level. Moreover, when instantiating targets on a specific number of LUNs, these structures are replicated and manually modified to fit the instance channel and LUN partitioning. Instead, create a generic geometry around nvm_geo, which can be used by (i) the underlying device to describe the geometry of the whole device, and (ii) instances to describe their geometry independently. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: pblk: refactor init/exit sequencesJavier González
Refactor init and exit sequences to eliminate dependencies among init modules and improve readability. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: Avoid validation of default op valueHeiner Litz
Fixes: 38401d231de65 ("lightnvm: set target over-provision on create ioctl") Signed-off-by: Heiner Litz <hlitz@ucsc.edu> Reviewed-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: centralize permission check for lightnvm ioctlJohannes Thumshirn
Currently all functions for handling the lightnvm core ioctl commands do a check for CAP_SYS_ADMIN. Change this to fail early in nvm_ctl_ioctl(), so we don't have to duplicate the permission checks all over. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: fix bad block initializationHeiner Litz
fix reading bad block device information to correctly setup the per line blk_bitmap during lightnvm initialization Signed-off-by: Heiner Litz <hlitz@ucsc.edu> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29nvme: lightnvm: add late setup of block size and metadataMatias Bjørling
The nvme driver sets up the size of the nvme namespace in two steps. First it initializes the device with standard logical block and metadata sizes, and then sets the correct logical block and metadata size. Due to the OCSSD 2.0 specification relies on the namespace to expose these sizes for correct initialization, let it be updated appropriately on the LightNVM side as well. Signed-off-by: Matias Bjørling <mb@lightnvm.io> Acked-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: remove nvm_dev_ops->max_phys_sectMatias Bjørling
The value of max_phys_sect is always static. Instead of defining it in the nvm_dev_ops structure, declare it as a global value. Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-29lightnvm: remove max_rq_sizeMatias Bjørling
The field is no longer used. Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>