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2019-11-22Merge branch 'asoc-5.5' into asoc-nextMark Brown3-3/+20
2019-11-18ALSA: compress: add flac decoder paramsVinod Koul1-0/+10
The current design of sending codec parameters assumes that decoders will have parsers so they can parse the encoded stream for parameters and configure the decoder. But this assumption may not be universally true and we know some DSPs which do not contain the parsers so additional parameters are required to be passed. So add these parameters starting with FLAC decoder. The size of snd_codec_options is still 120 bytes after this change (due to this being a union) Co-developed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org> Link: https://lore.kernel.org/r/20191115102705.649976-2-vkoul@kernel.org Acked-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-11-15ptp: Introduce strict checking of external time stamp options.Richard Cochran1-1/+3
User space may request time stamps on rising edges, falling edges, or both. However, the particular mode may or may not be supported in the hardware or in the driver. This patch adds a "strict" flag that tells drivers to ensure that the requested mode will be honored. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-15ptp: Validate requests to enable time stamping of external signals.Richard Cochran1-0/+1
Commit 415606588c61 ("PTP: introduce new versions of IOCTLs") introduced a new external time stamp ioctl that validates the flags. This patch extends the validation to ensure that at least one rising or falling edge flag is set when enabling external time stamps. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-11devlink: Add method for time-stamp on reporter's dumpAya Levin1-0/+1
When setting the dump's time-stamp, use ktime_get_real in addition to jiffies. This simplifies the user space implementation and bypasses some inconsistent behavior with translating jiffies to current time. The time taken is transformed into nsec, to comply with y2038 issue. Fixes: c8e1da0bf923 ("devlink: Add health report functionality") Signed-off-by: Aya Levin <ayal@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds8-8/+8
Pull networking fixes from David Miller: 1) BPF sample build fixes from Björn Töpel 2) Fix powerpc bpf tail call implementation, from Eric Dumazet. 3) DCCP leaks jiffies on the wire, fix also from Eric Dumazet. 4) Fix crash in ebtables when using dnat target, from Florian Westphal. 5) Fix port disable handling whne removing bcm_sf2 driver, from Florian Fainelli. 6) Fix kTLS sk_msg trim on fallback to copy mode, from Jakub Kicinski. 7) Various KCSAN fixes all over the networking, from Eric Dumazet. 8) Memory leaks in mlx5 driver, from Alex Vesker. 9) SMC interface refcounting fix, from Ursula Braun. 10) TSO descriptor handling fixes in stmmac driver, from Jose Abreu. 11) Add a TX lock to synchonize the kTLS TX path properly with crypto operations. From Jakub Kicinski. 12) Sock refcount during shutdown fix in vsock/virtio code, from Stefano Garzarella. 13) Infinite loop in Intel ice driver, from Colin Ian King. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (108 commits) ixgbe: need_wakeup flag might not be set for Tx i40e: need_wakeup flag might not be set for Tx igb/igc: use ktime accessors for skb->tstamp i40e: Fix for ethtool -m issue on X722 NIC iavf: initialize ITRN registers with correct values ice: fix potential infinite loop because loop counter being too small qede: fix NULL pointer deref in __qede_remove() net: fix data-race in neigh_event_send() vsock/virtio: fix sock refcnt holding during the shutdown net: ethernet: octeon_mgmt: Account for second possible VLAN header mac80211: fix station inactive_time shortly after boot net/fq_impl: Switch to kvmalloc() for memory allocation mac80211: fix ieee80211_txq_setup_flows() failure path ipv4: Fix table id reference in fib_sync_down_addr ipv6: fixes rt6_probe() and fib6_nh->last_probe init net: hns: Fix the stray netpoll locks causing deadlock in NAPI path net: usb: qmi_wwan: add support for DW5821e with eSIM support CDC-NCM: handle incomplete transfer of MTU nfc: netlink: fix double device reference drop NFC: st21nfca: fix double free ...
2019-11-08Merge tag 'for-linus-2019-11-08' of git://git.kernel.dk/linux-blockLinus Torvalds1-0/+1
Pull block fixes from Jens Axboe: - Two NVMe device removal crash fixes, and a compat fixup for for an ioctl that was introduced in this release (Anton, Charles, Max - via Keith) - Missing error path mutex unlock for drbd (Dan) - cgroup writeback fixup on dead memcg (Tejun) - blkcg online stats print fix (Tejun) * tag 'for-linus-2019-11-08' of git://git.kernel.dk/linux-block: cgroup,writeback: don't switch wbs immediately on dead wbs if the memcg is dead block: drbd: remove a stray unlock in __drbd_send_protocol() blkcg: make blkcg_print_stat() print stats only for online blkgs nvme: change nvme_passthru_cmd64 to explicitly mark rsvd nvme-multipath: fix crash in nvme_mpath_clear_ctrl_paths nvme-rdma: fix a segmentation fault during module unload
2019-11-06nvme: change nvme_passthru_cmd64 to explicitly mark rsvdCharles Machalow1-0/+1
Changing nvme_passthru_cmd64 to add a field: rsvd2. This field is an explicit marker for the padding space added on certain platforms as a result of the enlargement of the result field from 32 bit to 64 bits in size, and fixes differences in struct size when using compat ioctl for 32-bit binaries on 64-bit architecture. Fixes: 65e68edce0db ("nvme: allow 64-bit results in passthru commands") Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Charles Machalow <csm10495@gmail.com> [changelog] Signed-off-by: Keith Busch <kbusch@kernel.org>
2019-11-05Merge tag 'for-linus-2019-11-05' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linuxLinus Torvalds1-0/+4
Pull clone3 stack argument update from Christian Brauner: "This changes clone3() to do basic stack validation and to set up the stack depending on whether or not it is growing up or down. With clone3() the expectation is now very simply that the .stack argument points to the lowest address of the stack and that .stack_size specifies the initial stack size. This is diferent from legacy clone() where the "stack" argument had to point to the lowest or highest address of the stack depending on the architecture. clone3() was released with 5.3. Currently, it is not documented and very unclear to userspace how the stack and stack_size argument have to be passed. After talking to glibc folks we concluded that changing clone3() to determine stack direction and doing basic validation is the right course of action. Note, this is a potentially user visible change. In the very unlikely case, that it breaks someone's use-case we will revert. (And then e.g. place the new behavior under an appropriate flag.) Note that passing an empty stack will continue working just as before. Breaking someone's use-case is very unlikely. Neither glibc nor musl currently expose a wrapper for clone3(). There is currently also no real motivation for anyone to use clone3() directly. First, because using clone{3}() with stacks requires some assembly (see glibc and musl). Second, because it does not provide features that legacy clone() doesn't. New features for clone3() will first happen in v5.5 which is why v5.4 is still a good time to try and make that change now and backport it to v5.3. I did a codesearch on https://codesearch.debian.net, github, and gitlab and could not find any software currently relying directly on clone3(). I expect this to change once we land CLONE_CLEAR_SIGHAND which was a request coming from glibc at which point they'll likely start using it" * tag 'for-linus-2019-11-05' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux: clone3: validate stack arguments
2019-11-05clone3: validate stack argumentsChristian Brauner1-0/+4
Validate the stack arguments and setup the stack depening on whether or not it is growing down or up. Legacy clone() required userspace to know in which direction the stack is growing and pass down the stack pointer appropriately. To make things more confusing microblaze uses a variant of the clone() syscall selected by CONFIG_CLONE_BACKWARDS3 that takes an additional stack_size argument. IA64 has a separate clone2() syscall which also takes an additional stack_size argument. Finally, parisc has a stack that is growing upwards. Userspace therefore has a lot nasty code like the following: #define __STACK_SIZE (8 * 1024 * 1024) pid_t sys_clone(int (*fn)(void *), void *arg, int flags, int *pidfd) { pid_t ret; void *stack; stack = malloc(__STACK_SIZE); if (!stack) return -ENOMEM; #ifdef __ia64__ ret = __clone2(fn, stack, __STACK_SIZE, flags | SIGCHLD, arg, pidfd); #elif defined(__parisc__) /* stack grows up */ ret = clone(fn, stack, flags | SIGCHLD, arg, pidfd); #else ret = clone(fn, stack + __STACK_SIZE, flags | SIGCHLD, arg, pidfd); #endif return ret; } or even crazier variants such as [3]. With clone3() we have the ability to validate the stack. We can check that when stack_size is passed, the stack pointer is valid and the other way around. We can also check that the memory area userspace gave us is fine to use via access_ok(). Furthermore, we probably should not require userspace to know in which direction the stack is growing. It is easy for us to do this in the kernel and I couldn't find the original reasoning behind exposing this detail to userspace. /* Intentional user visible API change */ clone3() was released with 5.3. Currently, it is not documented and very unclear to userspace how the stack and stack_size argument have to be passed. After talking to glibc folks we concluded that trying to change clone3() to setup the stack instead of requiring userspace to do this is the right course of action. Note, that this is an explicit change in user visible behavior we introduce with this patch. If it breaks someone's use-case we will revert! (And then e.g. place the new behavior under an appropriate flag.) Breaking someone's use-case is very unlikely though. First, neither glibc nor musl currently expose a wrapper for clone3(). Second, there is no real motivation for anyone to use clone3() directly since it does not provide features that legacy clone doesn't. New features for clone3() will first happen in v5.5 which is why v5.4 is still a good time to try and make that change now and backport it to v5.3. Searches on [4] did not reveal any packages calling clone3(). [1]: https://lore.kernel.org/r/CAG48ez3q=BeNcuVTKBN79kJui4vC6nw0Bfq6xc-i0neheT17TA@mail.gmail.com [2]: https://lore.kernel.org/r/20191028172143.4vnnjpdljfnexaq5@wittgenstein [3]: https://github.com/systemd/systemd/blob/5238e9575906297608ff802a27e2ff9effa3b338/src/basic/raw-clone.h#L31 [4]: https://codesearch.debian.net Fixes: 7f192e3cd316 ("fork: add clone3") Cc: Kees Cook <keescook@chromium.org> Cc: Jann Horn <jannh@google.com> Cc: David Howells <dhowells@redhat.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Florian Weimer <fweimer@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: linux-api@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: <stable@vger.kernel.org> # 5.3 Cc: GNU C Library <libc-alpha@sourceware.org> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Aleksa Sarai <cyphar@cyphar.com> Link: https://lore.kernel.org/r/20191031113608.20713-1-christian.brauner@ubuntu.com
2019-11-05can: don't use deprecated license identifiersYegor Yefremov8-8/+8
The "GPL-2.0" license identifier changed to "GPL-2.0-only" in SPDX v3.0. Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-10-29Merge tag 'fuse-fixes-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuseLinus Torvalds1-0/+37
Pull fuse fixes from Miklos Szeredi: "Mostly virtiofs fixes, but also fixes a regression and couple of longstanding data/metadata writeback ordering issues" * tag 'fuse-fixes-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: fuse: redundant get_fuse_inode() calls in fuse_writepages_fill() fuse: Add changelog entries for protocols 7.1 - 7.8 fuse: truncate pending writes on O_TRUNC fuse: flush dirty data/metadata before non-truncate setattr virtiofs: Remove set but not used variable 'fc' virtiofs: Retry request submission from worker context virtiofs: Count pending forgets as in_flight forgets virtiofs: Set FR_SENT flag only after request has been sent virtiofs: No need to check fpq->connected state virtiofs: Do not end request in submission context fuse: don't advise readdirplus for negative lookup fuse: don't dereference req->args on finished request virtio-fs: don't show mount options virtio-fs: Change module name to virtiofs.ko
2019-10-28ASoC: SOF: token: add tokens for PCM compatible with D0i3 substateKeyon Jie1-0/+4
Add stream token SOF_TKN_STREAM_PLAYBACK_COMPATIBLE_D0I3 and SOF_TKN_STREAM_CAPTURE_COMPATIBLE_D0I3 to denote if the stream can be opened at low power d0i3 status or not. Signed-off-by: Keyon Jie <yang.jie@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20191025224122.7718-9-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-23fuse: Add changelog entries for protocols 7.1 - 7.8Alan Somers1-0/+37
Retroactively add changelog entry for FUSE protocols 7.1 through 7.8. Signed-off-by: Alan Somers <asomers@FreeBSD.org> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2019-10-12Merge tag 'tty-5.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyLinus Torvalds1-1/+1
Pull tty/serial driver fixes from Greg KH: "Here are some small tty and serial driver fixes for 5.4-rc3 that resolve a number of reported issues and regressions. None of these are huge, full details are in the shortlog. There's also a MAINTAINERS update that I think you might have already taken in your tree already, but git should handle that merge easily. All have been in linux-next with no reported issues" * tag 'tty-5.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: MAINTAINERS: kgdb: Add myself as a reviewer for kgdb/kdb tty: serial: imx: Use platform_get_irq_optional() for optional IRQs serial: fix kernel-doc warning in comments serial: 8250_omap: Fix gpio check for auto RTS/CTS serial: mctrl_gpio: Check for NULL pointer tty: serial: fsl_lpuart: Fix lpuart_flush_buffer() tty: serial: Fix PORT_LINFLEXUART definition tty: n_hdlc: fix build on SPARC serial: uartps: Fix uartps_major handling serial: uartlite: fix exit path null pointer tty: serial: linflexuart: Fix magic SysRq handling serial: sh-sci: Use platform_get_irq_optional() for optional interrupts dt-bindings: serial: sh-sci: Document r8a774b1 bindings serial/sifive: select SERIAL_EARLYCON tty: serial: rda: Fix the link time qualifier of 'rda_uart_exit()' tty: serial: owl: Fix the link time qualifier of 'owl_uart_exit()'
2019-10-10ASoC: SOF: acpi led support for switch controlsJaska Uimonen1-0/+4
Currently sof doesn't support acpi leds with mute switches. So implement acpi leds following quite shamelessly existing HDA implementation by Takashi Iwai. Mute leds can be enabled in topology by adding led and direction token in switch control private data. Signed-off-by: Jaska Uimonen <jaska.uimonen@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20191008164443.1358-10-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-10ASoC: SOF: imx: Describe ESAI parameters to be sent to DSPDaniel Baluta2-3/+2
Introduce sof_ipc_dai_esai_params to keep information that we get from topology and we send to DSP FW. Also bump the ABI minor to reflect the changes on DSP FW. Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20191008164443.1358-6-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-04Merge tag 'copy-struct-from-user-v5.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linuxLinus Torvalds1-0/+2
Pull copy_struct_from_user() helper from Christian Brauner: "This contains the copy_struct_from_user() helper which got split out from the openat2() patchset. It is a generic interface designed to copy a struct from userspace. The helper will be especially useful for structs versioned by size of which we have quite a few. This allows for backwards compatibility, i.e. an extended struct can be passed to an older kernel, or a legacy struct can be passed to a newer kernel. For the first case (extended struct, older kernel) the new fields in an extended struct can be set to zero and the struct safely passed to an older kernel. The most obvious benefit is that this helper lets us get rid of duplicate code present in at least sched_setattr(), perf_event_open(), and clone3(). More importantly it will also help to ensure that users implementing versioning-by-size end up with the same core semantics. This point is especially crucial since we have at least one case where versioning-by-size is used but with slighly different semantics: sched_setattr(), perf_event_open(), and clone3() all do do similar checks to copy_struct_from_user() while rt_sigprocmask(2) always rejects differently-sized struct arguments. With this pull request we also switch over sched_setattr(), perf_event_open(), and clone3() to use the new helper" * tag 'copy-struct-from-user-v5.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux: usercopy: Add parentheses around assignment in test_copy_struct_from_user perf_event_open: switch to copy_struct_from_user() sched_setattr: switch to copy_struct_from_user() clone3: switch to copy_struct_from_user() lib: introduce copy_struct_from_user() helper
2019-10-04Merge tag 'for-linus-20191003' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linuxLinus Torvalds1-2/+26
Pull clone3/pidfd fixes from Christian Brauner: "This contains a couple of fixes: - Fix pidfd selftest compilation (Shuah Kahn) Due to a false linking instruction in the Makefile compilation for the pidfd selftests would fail on some systems. - Fix compilation for glibc on RISC-V systems (Seth Forshee) In some scenarios linux/uapi/linux/sched.h is included where __ASSEMBLY__ is defined causing a build failure because struct clone_args was not guarded by an #ifndef __ASSEMBLY__. - Add missing clone3() and struct clone_args kernel-doc (Christian Brauner) clone3() and struct clone_args were missing kernel-docs. (The goal is to use kernel-doc for any function or type where it's worth it.) For struct clone_args this also contains a comment about the fact that it's versioned by size" * tag 'for-linus-20191003' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux: sched: add kernel-doc for struct clone_args fork: add kernel-doc for clone3 selftests: pidfd: Fix undefined reference to pthread_create() sched: Add __ASSEMBLY__ guards around struct clone_args
2019-10-04Merge tag 'drm-fixes-2019-10-04' of git://anongit.freedesktop.org/drm/drmLinus Torvalds1-0/+2
Pull drm fixes from Dave Airlie: "Been offline for 3 days, got back and had some fixes queued up. Nothing too major, the i915 dp-mst fix is important, and amdgpu has a bulk move speedup fix and some regressions, but nothing too insane for an rc2 pull. The intel fixes are also 2 weeks worth, they missed the boat last week. core: - writeback fixes i915: - Fix DP-MST crtc_mask - Fix dsc dpp calculations - Fix g4x sprite scaling stride check with GTT remapping - Fix concurrence on cases where requests where getting retired at same time as resubmitted to HW - Fix gen9 display resolutions by setting the right max plane width - Fix GPU hang on preemption - Mark contents as dirty on a write fault. This was breaking cursor sprite with dumb buffers. komeda: - memory leak fix tilcdc: - include fix amdgpu: - Enable bulk moves - Power metrics fixes for Navi - Fix S4 regression - Add query for tcc disabled mask - Fix several leaks in error paths - randconfig fixes - clang fixes" * tag 'drm-fixes-2019-10-04' of git://anongit.freedesktop.org/drm/drm: (21 commits) Revert "drm/i915: Fix DP-MST crtc_mask" drm/omap: fix max fclk divider for omap36xx drm/i915: Fix g4x sprite scaling stride check with GTT remapping drm/i915/dp: Fix dsc bpp calculations, v5. drm/amd/display: fix dcn21 Makefile for clang drm/amd/display: hide an unused variable drm/amdgpu: display_mode_vba_21: remove uint typedef drm/amdgpu: hide another #warning drm/amdgpu: make pmu support optional, again drm/amd/display: memory leak drm/amdgpu: fix multiple memory leaks in acp_hw_init drm/amdgpu: return tcc_disabled_mask to userspace drm/amdgpu: don't increment vram lost if we are in hibernation Revert "drm/amdgpu: disable stutter mode for renoir" drm/amd/powerplay: add sensor lock support for smu drm/amd/powerplay: change metrics update period from 1ms to 100ms drm/amdgpu: revert "disable bulk moves for now" drm/tilcdc: include linux/pinctrl/consumer.h again drm/komeda: prevent memory leak in komeda_wb_connector_add drm: Clear the fence pointer when writeback job signaled ...
2019-10-04Merge tag 'for-linus-2019-10-03' of git://git.kernel.dk/linux-blockLinus Torvalds2-1/+27
Pull block fixes from Jens Axboe: - Mandate timespec64 for the io_uring timeout ABI (Arnd) - Set of NVMe changes via Sagi: - controller removal race fix from Balbir - quirk additions from Gabriel and Jian-Hong - nvme-pci power state save fix from Mario - Add 64bit user commands (for 64bit registers) from Marta - nvme-rdma/nvme-tcp fixes from Max, Mark and Me - Minor cleanups and nits from James, Dan and John - Two s390 dasd fixes (Jan, Stefan) - Have loop change block size in DIO mode (Martijn) - paride pg header ifdef guard (Masahiro) - Two blk-mq queue scheduler tweaks, fixing an ordering issue on zoned devices and suboptimal performance on others (Ming) * tag 'for-linus-2019-10-03' of git://git.kernel.dk/linux-block: (22 commits) block: sed-opal: fix sparse warning: convert __be64 data block: sed-opal: fix sparse warning: obsolete array init. block: pg: add header include guard Revert "s390/dasd: Add discard support for ESE volumes" s390/dasd: Fix error handling during online processing io_uring: use __kernel_timespec in timeout ABI loop: change queue block size to match when using DIO blk-mq: apply normal plugging for HDD blk-mq: honor IO scheduler for multiqueue devices nvme-rdma: fix possible use-after-free in connect timeout nvme: Move ctrl sqsize to generic space nvme: Add ctrl attributes for queue_count and sqsize nvme: allow 64-bit results in passthru commands nvme: Add quirk for Kingston NVME SSD running FW E8FK11.T nvmet-tcp: remove superflous check on request sgl Added QUIRKs for ADATA XPG SX8200 Pro 512GB nvme-rdma: Fix max_hw_sectors calculation nvme: fix an error code in nvme_init_subsystem() nvme-pci: Save PCI state before putting drive into deepest state nvme-tcp: fix wrong stop condition in io_work ...
2019-10-04tty: serial: Fix PORT_LINFLEXUART definitionStefan-gabriel Mirea1-1/+1
The port type macros should have different values for different devices. Currently, PORT_LINFLEXUART conflicts with PORT_SUNIX. Fixes: 09864c1cdf5c ("tty: serial: Add linflexuart driver for S32V234") Signed-off-by: Stefan-Gabriel Mirea <stefan-gabriel.mirea@nxp.com> Link: https://lore.kernel.org/r/20191004135058.18007-1-stefan-gabriel.mirea@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-03sched: add kernel-doc for struct clone_argsChristian Brauner1-2/+24
Add kernel-doc for struct clone_args for the clone3() syscall. Link: https://lore.kernel.org/r/20191001114701.24661-3-christian.brauner@ubuntu.com Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
2019-10-02block: pg: add header include guardMasahiro Yamada1-1/+4
Add a header include guard just in case. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-10-02drm/amdgpu: return tcc_disabled_mask to userspaceMarek Olšák1-0/+2
UMDs need this for correct programming of harvested chips. Signed-off-by: Marek Olšák <marek.olsak@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-10-01clone3: switch to copy_struct_from_user()Aleksa Sarai1-0/+2
Switch clone3() syscall from it's own copying struct clone_args from userspace to the new dedicated copy_struct_from_user() helper. The change is very straightforward, and helps unify the syscall interface for struct-from-userspace syscalls. Additionally, explicitly define CLONE_ARGS_SIZE_VER0 to match the other users of the struct-extension pattern. Signed-off-by: Aleksa Sarai <cyphar@cyphar.com> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com> [christian.brauner@ubuntu.com: improve commit message] Link: https://lore.kernel.org/r/20191001011055.19283-3-cyphar@cyphar.com Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
2019-09-30sched: Add __ASSEMBLY__ guards around struct clone_argsSeth Forshee1-0/+2
The addition of struct clone_args to uapi/linux/sched.h is not protected by __ASSEMBLY__ guards, causing a failure to build from source for glibc on RISC-V. Add the guards to fix this. Fixes: 7f192e3cd316 ("fork: add clone3") Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Cc: <stable@vger.kernel.org> Acked-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20190917071853.12385-1-seth.forshee@canonical.com Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
2019-09-28Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds3-5/+27
Pull networking fixes from David Miller: 1) Sanity check URB networking device parameters to avoid divide by zero, from Oliver Neukum. 2) Disable global multicast filter in NCSI, otherwise LLDP and IPV6 don't work properly. Longer term this needs a better fix tho. From Vijay Khemka. 3) Small fixes to selftests (use ping when ping6 is not present, etc.) from David Ahern. 4) Bring back rt_uses_gateway member of struct rtable, it's semantics were not well understood and trying to remove it broke things. From David Ahern. 5) Move usbnet snaity checking, ignore endpoints with invalid wMaxPacketSize. From Bjørn Mork. 6) Missing Kconfig deps for sja1105 driver, from Mao Wenan. 7) Various small fixes to the mlx5 DR steering code, from Alaa Hleihel, Alex Vesker, and Yevgeny Kliteynik 8) Missing CAP_NET_RAW checks in various places, from Ori Nimron. 9) Fix crash when removing sch_cbs entry while offloading is enabled, from Vinicius Costa Gomes. 10) Signedness bug fixes, generally in looking at the result given by of_get_phy_mode() and friends. From Dan Crapenter. 11) Disable preemption around BPF_PROG_RUN() calls, from Eric Dumazet. 12) Don't create VRF ipv6 rules if ipv6 is disabled, from David Ahern. 13) Fix quantization code in tcp_bbr, from Kevin Yang. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (127 commits) net: tap: clean up an indentation issue nfp: abm: fix memory leak in nfp_abm_u32_knode_replace tcp: better handle TCP_USER_TIMEOUT in SYN_SENT state sk_buff: drop all skb extensions on free and skb scrubbing tcp_bbr: fix quantization code to not raise cwnd if not probing bandwidth mlxsw: spectrum_flower: Fail in case user specifies multiple mirror actions Documentation: Clarify trap's description mlxsw: spectrum: Clear VLAN filters during port initialization net: ena: clean up indentation issue NFC: st95hf: clean up indentation issue net: phy: micrel: add Asym Pause workaround for KSZ9021 net: socionext: ave: Avoid using netdev_err() before calling register_netdev() ptp: correctly disable flags on old ioctls lib: dimlib: fix help text typos net: dsa: microchip: Always set regmap stride to 1 nfp: flower: fix memory leak in nfp_flower_spawn_vnic_reprs nfp: flower: prevent memory leak in nfp_flower_spawn_phy_reprs net/sched: Set default of CONFIG_NET_TC_SKB_EXT to N vrf: Do not attempt to create IPv6 mcast rule if IPv6 is disabled net: sched: sch_sfb: don't call qdisc_put() while holding tree lock ...
2019-09-27Merge tag 'nfsd-5.4' of git://linux-nfs.org/~bfields/linuxLinus Torvalds1-2/+39
Pull nfsd updates from Bruce Fields: "Highlights: - Add a new knfsd file cache, so that we don't have to open and close on each (NFSv2/v3) READ or WRITE. This can speed up read and write in some cases. It also replaces our readahead cache. - Prevent silent data loss on write errors, by treating write errors like server reboots for the purposes of write caching, thus forcing clients to resend their writes. - Tweak the code that allocates sessions to be more forgiving, so that NFSv4.1 mounts are less likely to hang when a server already has a lot of clients. - Eliminate an arbitrary limit on NFSv4 ACL sizes; they should now be limited only by the backend filesystem and the maximum RPC size. - Allow the server to enforce use of the correct kerberos credentials when a client reclaims state after a reboot. And some miscellaneous smaller bugfixes and cleanup" * tag 'nfsd-5.4' of git://linux-nfs.org/~bfields/linux: (34 commits) sunrpc: clean up indentation issue nfsd: fix nfs read eof detection nfsd: Make nfsd_reset_boot_verifier_locked static nfsd: degraded slot-count more gracefully as allocation nears exhaustion. nfsd: handle drc over-allocation gracefully. nfsd: add support for upcall version 2 nfsd: add a "GetVersion" upcall for nfsdcld nfsd: Reset the boot verifier on all write I/O errors nfsd: Don't garbage collect files that might contain write errors nfsd: Support the server resetting the boot verifier nfsd: nfsd_file cache entries should be per net namespace nfsd: eliminate an unnecessary acl size limit Deprecate nfsd fault injection nfsd: remove duplicated include from filecache.c nfsd: Fix the documentation for svcxdr_tmpalloc() nfsd: Fix up some unused variable warnings nfsd: close cached files prior to a REMOVE or RENAME that would replace target nfsd: rip out the raparms cache nfsd: have nfsd_test_lock use the nfsd_file cache nfsd: hook up nfs4_preprocess_stateid_op to the nfsd_file cache ...
2019-09-27Merge tag 'virtio-fs-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuseLinus Torvalds3-1/+27
Pull fuse virtio-fs support from Miklos Szeredi: "Virtio-fs allows exporting directory trees on the host and mounting them in guest(s). This isn't actually a new filesystem, but a glue layer between the fuse filesystem and a virtio based back-end. It's similar in functionality to the existing virtio-9p solution, but significantly faster in benchmarks and has better POSIX compliance. Further permformance improvements can be achieved by sharing the page cache between host and guest, allowing for faster I/O and reduced memory use. Kata Containers have been including the out-of-tree virtio-fs (with the shared page cache patches as well) since version 1.7 as an experimental feature. They have been active in development and plan to switch from virtio-9p to virtio-fs as their default solution. There has been interest from other sources as well. The userspace infrastructure is slated to be merged into qemu once the kernel part hits mainline. This was developed by Vivek Goyal, Dave Gilbert and Stefan Hajnoczi" * tag 'virtio-fs-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: virtio-fs: add virtiofs filesystem virtio-fs: add Documentation/filesystems/virtiofs.rst fuse: reserve values for mapping protocol
2019-09-27Merge tag 'riscv/for-v5.4-rc1-b' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linuxLinus Torvalds1-0/+1
Pull more RISC-V updates from Paul Walmsley: "Some additional RISC-V updates. This includes one significant fix: - Prevent interrupts from being unconditionally re-enabled during exception handling if they were disabled in the context in which the exception occurred Also a few other fixes: - Fix a build error when sparse memory support is manually enabled - Prevent CPUs beyond CONFIG_NR_CPUS from being enabled in early boot And a few minor improvements: - DT improvements: in the FU540 SoC DT files, improve U-Boot compatibility by adding an "ethernet0" alias, drop an unnecessary property from the DT files, and add support for the PWM device - KVM preparation: add a KVM-related macro for future RISC-V KVM support, and export some symbols required to build KVM support as modules - defconfig additions: build more drivers by default for QEMU configurations" * tag 'riscv/for-v5.4-rc1-b' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: Avoid interrupts being erroneously enabled in handle_exception() riscv: dts: sifive: Drop "clock-frequency" property of cpu nodes riscv: dts: sifive: Add ethernet0 to the aliases node RISC-V: Export kernel symbols for kvm KVM: RISC-V: Add KVM_REG_RISCV for ONE_REG interface arch/riscv: disable excess harts before picking main boot hart RISC-V: Enable VIRTIO drivers in RV64 and RV32 defconfig RISC-V: Fix building error when CONFIG_SPARSEMEM_MANUAL=y riscv: dts: Add DT support for SiFive FU540 PWM driver
2019-09-27Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds1-0/+1
Pull more KVM updates from Paolo Bonzini: "x86 KVM changes: - The usual accuracy improvements for nested virtualization - The usual round of code cleanups from Sean - Added back optimizations that were prematurely removed in 5.2 (the bare minimum needed to fix the regression was in 5.3-rc8, here comes the rest) - Support for UMWAIT/UMONITOR/TPAUSE - Direct L2->L0 TLB flushing when L0 is Hyper-V and L1 is KVM - Tell Windows guests if SMT is disabled on the host - More accurate detection of vmexit cost - Revert a pvqspinlock pessimization" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (56 commits) KVM: nVMX: cleanup and fix host 64-bit mode checks KVM: vmx: fix build warnings in hv_enable_direct_tlbflush() on i386 KVM: x86: Don't check kvm_rebooting in __kvm_handle_fault_on_reboot() KVM: x86: Drop ____kvm_handle_fault_on_reboot() KVM: VMX: Add error handling to VMREAD helper KVM: VMX: Optimize VMX instruction error and fault handling KVM: x86: Check kvm_rebooting in kvm_spurious_fault() KVM: selftests: fix ucall on x86 Revert "locking/pvqspinlock: Don't wait if vCPU is preempted" kvm: nvmx: limit atomic switch MSRs kvm: svm: Intercept RDPRU kvm: x86: Add "significant index" flag to a few CPUID leaves KVM: x86/mmu: Skip invalid pages during zapping iff root_count is zero KVM: x86/mmu: Explicitly track only a single invalid mmu generation KVM: x86/mmu: Revert "KVM: x86/mmu: Remove is_obsolete() call" KVM: x86/mmu: Revert "Revert "KVM: MMU: reclaim the zapped-obsolete page first"" KVM: x86/mmu: Revert "Revert "KVM: MMU: collapse TLB flushes when zap all pages"" KVM: x86/mmu: Revert "Revert "KVM: MMU: zap pages in batch"" KVM: x86/mmu: Revert "Revert "KVM: MMU: add tracepoint for kvm_mmu_invalidate_all_pages"" KVM: x86/mmu: Revert "Revert "KVM: MMU: show mmu_valid_gen in shadow page related tracepoints"" ...
2019-09-27Merge branch 'nvme-5.4' of git://git.infradead.org/nvme into for-linusJens Axboe1-0/+23
Pull NVMe changes from Sagi: "This set consists of various fixes and cleanups: - controller removal race fix from Balbir - quirk additions from Gabriel and Jian-Hong - nvme-pci power state save fix from Mario - Add 64bit user commands (for 64bit registers) from Marta - nvme-rdma/nvme-tcp fixes from Max, Mark and Me - Minor cleanups and nits from James, Dan and John" * 'nvme-5.4' of git://git.infradead.org/nvme: nvme-rdma: fix possible use-after-free in connect timeout nvme: Move ctrl sqsize to generic space nvme: Add ctrl attributes for queue_count and sqsize nvme: allow 64-bit results in passthru commands nvme: Add quirk for Kingston NVME SSD running FW E8FK11.T nvmet-tcp: remove superflous check on request sgl Added QUIRKs for ADATA XPG SX8200 Pro 512GB nvme-rdma: Fix max_hw_sectors calculation nvme: fix an error code in nvme_init_subsystem() nvme-pci: Save PCI state before putting drive into deepest state nvme-tcp: fix wrong stop condition in io_work nvme-pci: Fix a race in controller removal nvmet: change ppl to lpp
2019-09-27ptp: correctly disable flags on old ioctlsJacob Keller1-0/+22
Commit 415606588c61 ("PTP: introduce new versions of IOCTLs", 2019-09-13) introduced new versions of the PTP ioctls which actually validate that the flags are acceptable values. As part of this, it cleared the flags value using a bitwise and+negation, in an attempt to prevent the old ioctl from accidentally enabling new features. This is incorrect for a couple of reasons. First, it results in accidentally preventing previously working flags on the request ioctl. By clearing the "valid" flags, we now no longer allow setting the enable, rising edge, or falling edge flags. Second, if we add new additional flags in the future, they must not be set by the old ioctl. (Since the flag wasn't checked before, we could potentially break userspace programs which sent garbage flag data. The correct way to resolve this is to check for and clear all but the originally valid flags. Create defines indicating which flags are correctly checked and interpreted by the original ioctls. Use these to clear any bits which will not be correctly interpreted by the original ioctls. In the future, new flags must be added to the VALID_FLAGS macros, but *not* to the V1_VALID_FLAGS macros. In this way, new features may be exposed over the v2 ioctls, but without breaking previous userspace which happened to not clear the flags value properly. The old ioctl will continue to behave the same way, while the new ioctl gains the benefit of using the flags fields. Cc: Richard Cochran <richardcochran@gmail.com> Cc: Felipe Balbi <felipe.balbi@linux.intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: Christopher Hall <christopher.s.hall@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfDavid S. Miller1-3/+3
Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for net: 1) Add NFT_CHAIN_POLICY_UNSET to replace hardcoded -1 to specify that the chain policy is unset. The chain policy field is actually defined as an 8-bit unsigned integer. 2) Remove always true condition reported by smatch in chain policy check. 3) Fix element lookup on dynamic sets, from Florian Westphal. 4) Use __u8 in ebtables uapi header, from Masahiro Yamada. 5) Bogus EBUSY when removing flowtable after chain flush, from Laura Garcia Liebana. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-26Merge branch 'akpm' (patches from Andrew)Linus Torvalds2-0/+8
Merge more updates from Andrew Morton: - almost all of the rest of -mm - various other subsystems Subsystems affected by this patch series: memcg, misc, core-kernel, lib, checkpatch, reiserfs, fat, fork, cpumask, kexec, uaccess, kconfig, kgdb, bug, ipc, lzo, kasan, madvise, cleanups, pagemap * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (77 commits) arch/sparc/include/asm/pgtable_64.h: fix build mm: treewide: clarify pgtable_page_{ctor,dtor}() naming ntfs: remove (un)?likely() from IS_ERR() conditions IB/hfi1: remove unlikely() from IS_ERR*() condition xfs: remove unlikely() from WARN_ON() condition wimax/i2400m: remove unlikely() from WARN*() condition fs: remove unlikely() from WARN_ON() condition xen/events: remove unlikely() from WARN() condition checkpatch: check for nested (un)?likely() calls hexagon: drop empty and unused free_initrd_mem mm: factor out common parts between MADV_COLD and MADV_PAGEOUT mm: introduce MADV_PAGEOUT mm: change PAGEREF_RECLAIM_CLEAN with PAGE_REFRECLAIM mm: introduce MADV_COLD mm: untag user pointers in mmap/munmap/mremap/brk vfio/type1: untag user pointers in vaddr_get_pfn tee/shm: untag user pointers in tee_shm_register media/v4l2-core: untag user pointers in videobuf_dma_contig_user_get drm/radeon: untag user pointers in radeon_gem_userptr_ioctl drm/amdgpu: untag user pointers ...
2019-09-25mm: introduce MADV_PAGEOUTMinchan Kim1-0/+1
When a process expects no accesses to a certain memory range for a long time, it could hint kernel that the pages can be reclaimed instantly but data should be preserved for future use. This could reduce workingset eviction so it ends up increasing performance. This patch introduces the new MADV_PAGEOUT hint to madvise(2) syscall. MADV_PAGEOUT can be used by a process to mark a memory range as not expected to be used for a long time so that kernel reclaims *any LRU* pages instantly. The hint can help kernel in deciding which pages to evict proactively. A note: It doesn't apply SWAP_CLUSTER_MAX LRU page isolation limit intentionally because it's automatically bounded by PMD size. If PMD size(e.g., 256) makes some trouble, we could fix it later by limit it to SWAP_CLUSTER_MAX[1]. - man-page material MADV_PAGEOUT (since Linux x.x) Do not expect access in the near future so pages in the specified regions could be reclaimed instantly regardless of memory pressure. Thus, access in the range after successful operation could cause major page fault but never lose the up-to-date contents unlike MADV_DONTNEED. Pages belonging to a shared mapping are only processed if a write access is allowed for the calling process. MADV_PAGEOUT cannot be applied to locked pages, Huge TLB pages, or VM_PFNMAP pages. [1] https://lore.kernel.org/lkml/20190710194719.GS29695@dhcp22.suse.cz/ [minchan@kernel.org: clear PG_active on MADV_PAGEOUT] Link: http://lkml.kernel.org/r/20190802200643.GA181880@google.com [akpm@linux-foundation.org: resolve conflicts with hmm.git] Link: http://lkml.kernel.org/r/20190726023435.214162-5-minchan@kernel.org Signed-off-by: Minchan Kim <minchan@kernel.org> Reported-by: kbuild test robot <lkp@intel.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: James E.J. Bottomley <James.Bottomley@HansenPartnership.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Chris Zankel <chris@zankel.net> Cc: Daniel Colascione <dancol@google.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Hillf Danton <hdanton@sina.com> Cc: Joel Fernandes (Google) <joel@joelfernandes.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Oleksandr Natalenko <oleksandr@redhat.com> Cc: Shakeel Butt <shakeelb@google.com> Cc: Sonny Rao <sonnyrao@google.com> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Tim Murray <timmurray@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-09-25mm: introduce MADV_COLDMinchan Kim1-0/+2
Patch series "Introduce MADV_COLD and MADV_PAGEOUT", v7. - Background The Android terminology used for forking a new process and starting an app from scratch is a cold start, while resuming an existing app is a hot start. While we continually try to improve the performance of cold starts, hot starts will always be significantly less power hungry as well as faster so we are trying to make hot start more likely than cold start. To increase hot start, Android userspace manages the order that apps should be killed in a process called ActivityManagerService. ActivityManagerService tracks every Android app or service that the user could be interacting with at any time and translates that into a ranked list for lmkd(low memory killer daemon). They are likely to be killed by lmkd if the system has to reclaim memory. In that sense they are similar to entries in any other cache. Those apps are kept alive for opportunistic performance improvements but those performance improvements will vary based on the memory requirements of individual workloads. - Problem Naturally, cached apps were dominant consumers of memory on the system. However, they were not significant consumers of swap even though they are good candidate for swap. Under investigation, swapping out only begins once the low zone watermark is hit and kswapd wakes up, but the overall allocation rate in the system might trip lmkd thresholds and cause a cached process to be killed(we measured performance swapping out vs. zapping the memory by killing a process. Unsurprisingly, zapping is 10x times faster even though we use zram which is much faster than real storage) so kill from lmkd will often satisfy the high zone watermark, resulting in very few pages actually being moved to swap. - Approach The approach we chose was to use a new interface to allow userspace to proactively reclaim entire processes by leveraging platform information. This allowed us to bypass the inaccuracy of the kernel’s LRUs for pages that are known to be cold from userspace and to avoid races with lmkd by reclaiming apps as soon as they entered the cached state. Additionally, it could provide many chances for platform to use much information to optimize memory efficiency. To achieve the goal, the patchset introduce two new options for madvise. One is MADV_COLD which will deactivate activated pages and the other is MADV_PAGEOUT which will reclaim private pages instantly. These new options complement MADV_DONTNEED and MADV_FREE by adding non-destructive ways to gain some free memory space. MADV_PAGEOUT is similar to MADV_DONTNEED in a way that it hints the kernel that memory region is not currently needed and should be reclaimed immediately; MADV_COLD is similar to MADV_FREE in a way that it hints the kernel that memory region is not currently needed and should be reclaimed when memory pressure rises. This patch (of 5): When a process expects no accesses to a certain memory range, it could give a hint to kernel that the pages can be reclaimed when memory pressure happens but data should be preserved for future use. This could reduce workingset eviction so it ends up increasing performance. This patch introduces the new MADV_COLD hint to madvise(2) syscall. MADV_COLD can be used by a process to mark a memory range as not expected to be used in the near future. The hint can help kernel in deciding which pages to evict early during memory pressure. It works for every LRU pages like MADV_[DONTNEED|FREE]. IOW, It moves active file page -> inactive file LRU active anon page -> inacdtive anon LRU Unlike MADV_FREE, it doesn't move active anonymous pages to inactive file LRU's head because MADV_COLD is a little bit different symantic. MADV_FREE means it's okay to discard when the memory pressure because the content of the page is *garbage* so freeing such pages is almost zero overhead since we don't need to swap out and access afterward causes just minor fault. Thus, it would make sense to put those freeable pages in inactive file LRU to compete other used-once pages. It makes sense for implmentaion point of view, too because it's not swapbacked memory any longer until it would be re-dirtied. Even, it could give a bonus to make them be reclaimed on swapless system. However, MADV_COLD doesn't mean garbage so reclaiming them requires swap-out/in in the end so it's bigger cost. Since we have designed VM LRU aging based on cost-model, anonymous cold pages would be better to position inactive anon's LRU list, not file LRU. Furthermore, it would help to avoid unnecessary scanning if system doesn't have a swap device. Let's start simpler way without adding complexity at this moment. However, keep in mind, too that it's a caveat that workloads with a lot of pages cache are likely to ignore MADV_COLD on anonymous memory because we rarely age anonymous LRU lists. * man-page material MADV_COLD (since Linux x.x) Pages in the specified regions will be treated as less-recently-accessed compared to pages in the system with similar access frequencies. In contrast to MADV_FREE, the contents of the region are preserved regardless of subsequent writes to pages. MADV_COLD cannot be applied to locked pages, Huge TLB pages, or VM_PFNMAP pages. [akpm@linux-foundation.org: resolve conflicts with hmm.git] Link: http://lkml.kernel.org/r/20190726023435.214162-2-minchan@kernel.org Signed-off-by: Minchan Kim <minchan@kernel.org> Reported-by: kbuild test robot <lkp@intel.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: James E.J. Bottomley <James.Bottomley@HansenPartnership.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Chris Zankel <chris@zankel.net> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Daniel Colascione <dancol@google.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Hillf Danton <hdanton@sina.com> Cc: Joel Fernandes (Google) <joel@joelfernandes.org> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Oleksandr Natalenko <oleksandr@redhat.com> Cc: Shakeel Butt <shakeelb@google.com> Cc: Sonny Rao <sonnyrao@google.com> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Tim Murray <timmurray@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-09-25linux/coff.h: add include guardMasahiro Yamada1-0/+5
Add a header include guard just in case. My motivation is to allow Kbuild to detect missing include guard: https://patchwork.kernel.org/patch/11063011/ Before I enable this checker I want to fix as many headers as possible. Link: http://lkml.kernel.org/r/20190728154728.11126-1-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-09-25nvme: allow 64-bit results in passthru commandsMarta Rybczynska1-0/+23
It is not possible to get 64-bit results from the passthru commands, what prevents from getting for the Capabilities (CAP) property value. As a result, it is not possible to implement IOL's NVMe Conformance test 4.3 Case 1 for Fabrics targets [1] (page 123). This issue has been already discussed [2], but without a solution. This patch solves the problem by adding new ioctls with a new passthru structure, including 64-bit results. The older ioctls stay unchanged. [1] https://www.iol.unh.edu/sites/default/files/testsuites/nvme/UNH-IOL_NVMe_Conformance_Test_Suite_v11.0.pdf [2] http://lists.infradead.org/pipermail/linux-nvme/2018-June/018791.html Signed-off-by: Marta Rybczynska <marta.rybczynska@kalray.eu> Reviewed-by: Keith Busch <kbusch@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2019-09-25Merge tag 'fuse-update-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuseLinus Torvalds1-0/+4
Pull fuse updates from Miklos Szeredi: - Continue separating the transport (user/kernel communication) and the filesystem layers of fuse. Getting rid of most layering violations will allow for easier cleanup and optimization later on. - Prepare for the addition of the virtio-fs filesystem. The actual filesystem will be introduced by a separate pull request. - Convert to new mount API. - Various fixes, optimizations and cleanups. * tag 'fuse-update-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (55 commits) fuse: Make fuse_args_to_req static fuse: fix memleak in cuse_channel_open fuse: fix beyond-end-of-page access in fuse_parse_cache() fuse: unexport fuse_put_request fuse: kmemcg account fs data fuse: on 64-bit store time in d_fsdata directly fuse: fix missing unlock_page in fuse_writepage() fuse: reserve byteswapped init opcodes fuse: allow skipping control interface and forced unmount fuse: dissociate DESTROY from fuseblk fuse: delete dentry if timeout is zero fuse: separate fuse device allocation and installation in fuse_conn fuse: add fuse_iqueue_ops callbacks fuse: extract fuse_fill_super_common() fuse: export fuse_dequeue_forget() function fuse: export fuse_get_unique() fuse: export fuse_send_init_request() fuse: export fuse_len_args() fuse: export fuse_end_request() fuse: fix request limit ...
2019-09-25netfilter: ebtables: use __u8 instead of uint8_t in uapi headerMasahiro Yamada1-3/+3
When CONFIG_UAPI_HEADER_TEST=y, exported headers are compile-tested to make sure they can be included from user-space. Currently, linux/netfilter_bridge/ebtables.h is excluded from the test coverage. To make it join the compile-test, we need to fix the build errors attached below. For a case like this, we decided to use __u{8,16,32,64} variable types in this discussion: https://lkml.org/lkml/2019/6/5/18 Build log: CC usr/include/linux/netfilter_bridge/ebtables.h.s In file included from <command-line>:32:0: ./usr/include/linux/netfilter_bridge/ebtables.h:126:4: error: unknown type name ‘uint8_t’ uint8_t revision; ^~~~~~~ ./usr/include/linux/netfilter_bridge/ebtables.h:139:4: error: unknown type name ‘uint8_t’ uint8_t revision; ^~~~~~~ ./usr/include/linux/netfilter_bridge/ebtables.h:152:4: error: unknown type name ‘uint8_t’ uint8_t revision; ^~~~~~~ Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-09-24Merge tag 'for-5.4/io_uring-2019-09-24' of git://git.kernel.dk/linux-blockLinus Torvalds1-0/+2
Pull more io_uring updates from Jens Axboe: "A collection of later fixes and additions, that weren't quite ready for pushing out with the initial pull request. This contains: - Fix potential use-after-free of shadow requests (Jackie) - Fix potential OOM crash in request allocation (Jackie) - kmalloc+memcpy -> kmemdup cleanup (Jackie) - Fix poll crash regression (me) - Fix SQ thread not being nice and giving up CPU for !PREEMPT (me) - Add support for timeouts, making it easier to do epoll_wait() conversions, for instance (me) - Ensure io_uring works without f_ops->read_iter() and f_ops->write_iter() (me)" * tag 'for-5.4/io_uring-2019-09-24' of git://git.kernel.dk/linux-block: io_uring: correctly handle non ->{read,write}_iter() file_operations io_uring: IORING_OP_TIMEOUT support io_uring: use cond_resched() in sqthread io_uring: fix potential crash issue due to io_get_req failure io_uring: ensure poll commands clear ->sqe io_uring: fix use-after-free of shadow_req io_uring: use kmemdup instead of kmalloc and memcpy
2019-09-24KVM/Hyper-V: Add new KVM capability KVM_CAP_HYPERV_DIRECT_TLBFLUSHTianyu Lan1-0/+1
Hyper-V direct tlb flush function should be enabled for guest that only uses Hyper-V hypercall. User space hypervisor(e.g, Qemu) can disable KVM identification in CPUID and just exposes Hyper-V identification to make sure the precondition. Add new KVM capability KVM_CAP_ HYPERV_DIRECT_TLBFLUSH for user space to enable Hyper-V direct tlb function and this function is default to be disabled in KVM. Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-09-23Merge tag 'pci-v5.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds1-1/+14
Pull PCI updates from Bjorn Helgaas: "Enumeration: - Consolidate _HPP/_HPX stuff in pci-acpi.c and simplify it (Krzysztof Wilczynski) - Fix incorrect PCIe device types and remove dev->has_secondary_link to simplify code that deals with upstream/downstream ports (Mika Westerberg) - After suspend, restore Resizable BAR size bits correctly for 1MB BARs (Sumit Saxena) - Enable PCI_MSI_IRQ_DOMAIN support for RISC-V (Wesley Terpstra) Virtualization: - Add ACS quirks for iProc PAXB (Abhinav Ratna), Amazon Annapurna Labs (Ali Saidi) - Move sysfs SR-IOV functions to iov.c (Kelsey Skunberg) - Remove group write permissions from sysfs sriov_numvfs, sriov_drivers_autoprobe (Kelsey Skunberg) Hotplug: - Simplify pciehp indicator control (Denis Efremov) Peer-to-peer DMA: - Allow P2P DMA between root ports for whitelisted bridges (Logan Gunthorpe) - Whitelist some Intel host bridges for P2P DMA (Logan Gunthorpe) - DMA map P2P DMA requests that traverse host bridge (Logan Gunthorpe) Amazon Annapurna Labs host bridge driver: - Add DT binding and controller driver (Jonathan Chocron) Hyper-V host bridge driver: - Fix hv_pci_dev->pci_slot use-after-free (Dexuan Cui) - Fix PCI domain number collisions (Haiyang Zhang) - Use instance ID bytes 4 & 5 as PCI domain numbers (Haiyang Zhang) - Fix build errors on non-SYSFS config (Randy Dunlap) i.MX6 host bridge driver: - Limit DBI register length (Stefan Agner) Intel VMD host bridge driver: - Fix config addressing issues (Jon Derrick) Layerscape host bridge driver: - Add bar_fixed_64bit property to endpoint driver (Xiaowei Bao) - Add CONFIG_PCI_LAYERSCAPE_EP to build EP/RC drivers separately (Xiaowei Bao) Mediatek host bridge driver: - Add MT7629 controller support (Jianjun Wang) Mobiveil host bridge driver: - Fix CPU base address setup (Hou Zhiqiang) - Make "num-lanes" property optional (Hou Zhiqiang) Tegra host bridge driver: - Fix OF node reference leak (Nishka Dasgupta) - Disable MSI for root ports to work around design problem (Vidya Sagar) - Add Tegra194 DT binding and controller support (Vidya Sagar) - Add support for sideband pins and slot regulators (Vidya Sagar) - Add PIPE2UPHY support (Vidya Sagar) Misc: - Remove unused pci_block_cfg_access() et al (Kelsey Skunberg) - Unexport pci_bus_get(), etc (Kelsey Skunberg) - Hide PM, VC, link speed, ATS, ECRC, PTM constants and interfaces in the PCI core (Kelsey Skunberg) - Clean up sysfs DEVICE_ATTR() usage (Kelsey Skunberg) - Mark expected switch fall-through (Gustavo A. R. Silva) - Propagate errors for optional regulators and PHYs (Thierry Reding) - Fix kernel command line resource_alignment parameter issues (Logan Gunthorpe)" * tag 'pci-v5.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (112 commits) PCI: Add pci_irq_vector() and other stubs when !CONFIG_PCI arm64: tegra: Add PCIe slot supply information in p2972-0000 platform arm64: tegra: Add configuration for PCIe C5 sideband signals PCI: tegra: Add support to enable slot regulators PCI: tegra: Add support to configure sideband pins PCI: vmd: Fix shadow offsets to reflect spec changes PCI: vmd: Fix config addressing when using bus offsets PCI: dwc: Add validation that PCIe core is set to correct mode PCI: dwc: al: Add Amazon Annapurna Labs PCIe controller driver dt-bindings: PCI: Add Amazon's Annapurna Labs PCIe host bridge binding PCI: Add quirk to disable MSI-X support for Amazon's Annapurna Labs Root Port PCI/VPD: Prevent VPD access for Amazon's Annapurna Labs Root Port PCI: Add ACS quirk for Amazon Annapurna Labs root ports PCI: Add Amazon's Annapurna Labs vendor ID MAINTAINERS: Add PCI native host/endpoint controllers designated reviewer PCI: hv: Use bytes 4 and 5 from instance ID as the PCI domain numbers dt-bindings: PCI: tegra: Add PCIe slot supplies regulator entries dt-bindings: PCI: tegra: Add sideband pins configuration entries PCI: tegra: Add Tegra194 PCIe support PCI: Get rid of dev->has_secondary_link flag ...
2019-09-23Merge branch 'lorenzo/pci/tegra'Bjorn Helgaas1-1/+13
- Fix Tegra OF node reference leak (Nishka Dasgupta) - Add #defines for PCIe Data Link Feature and Physical Layer 16.0 GT/s features (Vidya Sagar) - Disable MSI for Tegra Root Ports since they don't support using MSI for all Root Port events (Vidya Sagar) - Group DesignWare write-protected register writes together (Vidya Sagar) - Move DesignWare capability search interfaces so they can be used by both host and endpoint drivers (Vidya Sagar) - Add DesignWare extended capability search interfaces (Vidya Sagar) - Export dw_pcie_wait_for_link() so drivers can be modules (Vidya Sagar) - Add "snps,enable-cdm-check" DT binding for Configuration Dependent Module (CDM) register checking (Vidya Sagar) - Add DesignWare support for "snps,enable-cdm-check" CDM checking (Vidya Sagar) - Add "supports-clkreq" DT binding for host drivers to decide whether to advertise low power features (Vidya Sagar) - Add DT binding for Tegra194 (Vidya Sagar) - Add DT binding for Tegra194 P2U (PIPE to UPHY) block (Vidya Sagar) - Add support for Tegra194 P2U (PIPE to UPHY) (Vidya Sagar) - Add support for Tegra194 host controller (Vidya Sagar) - Add Tegra support for sideband PERST# and CLKREQ# for C5 (Vidya Sagar) - Add Tegra support for slot regulators for p2972-0000 platform (Vidya Sagar) * lorenzo/pci/tegra: arm64: tegra: Add PCIe slot supply information in p2972-0000 platform arm64: tegra: Add configuration for PCIe C5 sideband signals PCI: tegra: Add support to enable slot regulators PCI: tegra: Add support to configure sideband pins dt-bindings: PCI: tegra: Add PCIe slot supplies regulator entries dt-bindings: PCI: tegra: Add sideband pins configuration entries PCI: tegra: Add Tegra194 PCIe support phy: tegra: Add PCIe PIPE2UPHY support dt-bindings: PHY: P2U: Add Tegra194 P2U block dt-bindings: PCI: tegra: Add device tree support for Tegra194 dt-bindings: Add PCIe supports-clkreq property PCI: dwc: Add support to enable CDM register check dt-bindings: PCI: designware: Add binding for CDM register check PCI: dwc: Export dw_pcie_wait_for_link() API PCI: dwc: Add extended configuration space capability search API PCI: dwc: Move config space capability search API PCI: dwc: Group DBI registers writes requiring unlocking PCI: Disable MSI for Tegra root ports PCI: Add #defines for some of PCIe spec r4.0 features PCI: tegra: Fix OF node reference leak
2019-09-21Merge tag 'f2fs-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fsLinus Torvalds1-0/+1
Pull f2fs updates from Jaegeuk Kim: "In this round, we introduced casefolding support in f2fs, and fixed various bugs in individual features such as IO alignment, checkpoint=disable, quota, and swapfile. Enhancement: - support casefolding w/ enhancement in ext4 - support fiemap for directory - support FS_IO_GET|SET_FSLABEL Bug fix: - fix IO stuck during checkpoint=disable - avoid infinite GC loop - fix panic/overflow related to IO alignment feature - fix livelock in swap file - fix discard command leak - disallow dio for atomic_write" * tag 'f2fs-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (51 commits) f2fs: add a condition to detect overflow in f2fs_ioc_gc_range() f2fs: fix to add missing F2FS_IO_ALIGNED() condition f2fs: fix to fallback to buffered IO in IO aligned mode f2fs: fix to handle error path correctly in f2fs_map_blocks f2fs: fix extent corrupotion during directIO in LFS mode f2fs: check all the data segments against all node ones f2fs: Add a small clarification to CONFIG_FS_F2FS_FS_SECURITY f2fs: fix inode rwsem regression f2fs: fix to avoid accessing uninitialized field of inode page in is_alive() f2fs: avoid infinite GC loop due to stale atomic files f2fs: Fix indefinite loop in f2fs_gc() f2fs: convert inline_data in prior to i_size_write f2fs: fix error path of f2fs_convert_inline_page() f2fs: add missing documents of reserve_root/resuid/resgid f2fs: fix flushing node pages when checkpoint is disabled f2fs: enhance f2fs_is_checkpoint_ready()'s readability f2fs: clean up __bio_alloc()'s parameter f2fs: fix wrong error injection path in inc_valid_block_count() f2fs: fix to writeout dirty inode during node flush f2fs: optimize case-insensitive lookups ...
2019-09-21Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds3-44/+47
Pull SCSI updates from James Bottomley: "This is mostly update of the usual drivers: qla2xxx, ufs, smartpqi, lpfc, hisi_sas, qedf, mpt3sas; plus a whole load of minor updates. The only core change this time around is the addition of request batching for virtio. Since batching requires an additional flag to use, it should be invisible to the rest of the drivers" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (264 commits) scsi: hisi_sas: Fix the conflict between device gone and host reset scsi: hisi_sas: Add BIST support for phy loopback scsi: hisi_sas: Add hisi_sas_debugfs_alloc() to centralise allocation scsi: hisi_sas: Remove some unused function arguments scsi: hisi_sas: Remove redundant work declaration scsi: hisi_sas: Remove hisi_sas_hw.slot_complete scsi: hisi_sas: Assign NCQ tag for all NCQ commands scsi: hisi_sas: Update all the registers after suspend and resume scsi: hisi_sas: Retry 3 times TMF IO for SAS disks when init device scsi: hisi_sas: Remove sleep after issue phy reset if sas_smp_phy_control() fails scsi: hisi_sas: Directly return when running I_T_nexus reset if phy disabled scsi: hisi_sas: Use true/false as input parameter of sas_phy_reset() scsi: hisi_sas: add debugfs auto-trigger for internal abort time out scsi: virtio_scsi: unplug LUNs when events missed scsi: scsi_dh_rdac: zero cdb in send_mode_select() scsi: fcoe: fix null-ptr-deref Read in fc_release_transport scsi: ufs-hisi: use devm_platform_ioremap_resource() to simplify code scsi: ufshcd: use devm_platform_ioremap_resource() to simplify code scsi: hisi_sas: use devm_platform_ioremap_resource() to simplify code scsi: ufs: Use kmemdup in ufshcd_read_string_desc() ...
2019-09-21Merge tag 'for-5.4/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dmLinus Torvalds1-2/+4
Pull device mapper updates from Mike Snitzer: - crypto and DM crypt advances that allow the crypto API to reclaim implementation details that do not belong in DM crypt. The wrapper template for ESSIV generation that was factored out will also be used by fscrypt in the future. - Add root hash pkcs#7 signature verification to the DM verity target. - Add a new "clone" DM target that allows for efficient remote replication of a device. - Enhance DM bufio's cache to be tailored to each client based on use. Clients that make heavy use of the cache get more of it, and those that use less have reduced cache usage. - Add a new DM_GET_TARGET_VERSION ioctl to allow userspace to query the version number of a DM target (even if the associated module isn't yet loaded). - Fix invalid memory access in DM zoned target. - Fix the max_discard_sectors limit advertised by the DM raid target; it was mistakenly storing the limit in bytes rather than sectors. - Small optimizations and cleanups in DM writecache target. - Various fixes and cleanups in DM core, DM raid1 and space map portion of DM persistent data library. * tag 'for-5.4/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (22 commits) dm: introduce DM_GET_TARGET_VERSION dm bufio: introduce a global cache replacement dm bufio: remove old-style buffer cleanup dm bufio: introduce a global queue dm bufio: refactor adjust_total_allocated dm bufio: call adjust_total_allocated from __link_buffer and __unlink_buffer dm: add clone target dm raid: fix updating of max_discard_sectors limit dm writecache: skip writecache_wait for pmem mode dm stats: use struct_size() helper dm crypt: omit parsing of the encapsulated cipher dm crypt: switch to ESSIV crypto API template crypto: essiv - create wrapper template for ESSIV generation dm space map common: remove check for impossible sm_find_free() return value dm raid1: use struct_size() with kzalloc() dm writecache: optimize performance by sorting the blocks for writeback_all dm writecache: add unlikely for getting two block with same LBA dm writecache: remove unused member pointer in writeback_struct dm zoned: fix invalid memory access dm verity: add root hash pkcs#7 signature verification ...
2019-09-21Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds1-0/+1
Pull RDMA subsystem updates from Jason Gunthorpe: "This cycle mainly saw lots of bug fixes and clean up code across the core code and several drivers, few new functional changes were made. - Many cleanup and bug fixes for hns - Various small bug fixes and cleanups in hfi1, mlx5, usnic, qed, bnxt_re, efa - Share the query_port code between all the iWarp drivers - General rework and cleanup of the ODP MR umem code to fit better with the mmu notifier get/put scheme - Support rdma netlink in non init_net name spaces - mlx5 support for XRC devx and DC ODP" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (99 commits) RDMA: Fix double-free in srq creation error flow RDMA/efa: Fix incorrect error print IB/mlx5: Free mpi in mp_slave mode IB/mlx5: Use the original address for the page during free_pages RDMA/bnxt_re: Fix spelling mistake "missin_resp" -> "missing_resp" RDMA/hns: Package operations of rq inline buffer into separate functions RDMA/hns: Optimize cmd init and mode selection for hip08 IB/hfi1: Define variables as unsigned long to fix KASAN warning IB/{rdmavt, hfi1, qib}: Add a counter for credit waits IB/hfi1: Add traces for TID RDMA READ RDMA/siw: Relax from kmap_atomic() use in TX path IB/iser: Support up to 16MB data transfer in a single command RDMA/siw: Fix page address mapping in TX path RDMA: Fix goto target to release the allocated memory RDMA/usnic: Avoid overly large buffers on stack RDMA/odp: Add missing cast for 32 bit RDMA/hns: Use devm_platform_ioremap_resource() to simplify code Documentation/infiniband: update name of some functions RDMA/cma: Fix false error message RDMA/hns: Fix wrong assignment of qp_access_flags ...