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2018-04-04media: media-ioc-g-topology.rst: fix 'reserved' sizesHans Verkuil
The size of the reserved arrays in the documentation is wrong. Sync this with the actual header. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-04media: pixfmt-v4l2.rst: fix typesHans Verkuil
The v4l2_pix_format documentation still had 'enum's as types. Replace by __u32 and add a reference to the enum. Also put ycbcr_enc and hsv_enc in a union. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-04media: pixfmt-v4l2-mplane.rst: fix typesHans Verkuil
The v4l2_pix_format_mplane documentation still had 'enum's as types. Replace by __u8 and add a reference to the enum. Also put ycbcr_enc and hsv_enc in a union. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-04media: v4l2-tpg-core.c: add space after %Hans Verkuil
I know, it's a measly space, but I can't stand it since the V4L2_PIX_FMT_NV24 case before this case does it right. So add the space in order to restore blessed symmetry and consistency and to make the world whole again... Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-04media: cec-pin: Fixed ktime_t to ns conversionJasmin Jessich
Older Kernels use a struct for ktime_t, which requires the conversion function ktime_to_ns to be used on some places. With this patch it will compile now also for older Kernel versions. Signed-off-by: Jasmin Jessich <jasmin@anw.at> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-04media: vcodec: fix error return value from mtk_jpeg_clk_init()Ryder Lee
The error return value should be fixed as it may return EPROBE_DEFER. Cc: Bin Liu <bin.liu@mediatek.com> Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Acked-by: Rick Chang <rick.chang@mediatek.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-04media: doc: fix ReST link syntaxLuca Ceresoli
There is a ':' in excess, resulting in an unwanted ':' in the rendered output. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-04media: staging: media: davinci_vpfe: fix spelling of ↵Colin Ian King
resizer_configure_in_continious_mode Trivial fix: rename function resizer_configure_in_continious_mode to resizer_configure_in_continuous_mode to fix spelling mistake. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-04media: venus: vdec: fix format enumerationAlexandre Courbot
find_format_by_index() stops enumerating formats as soon as the index matches, and returns NULL if venus_helper_check_codec() finds out that the format is not supported. This prevents formats to be properly enumerated if a non-supported format is present, as the enumeration will end with it. Fix this by moving the call to venus_helper_check_codec() into the loop, and keep enumerating when it fails. Fixes: 29f0133ec6 media: venus: use helper function to check supported codecs Signed-off-by: Alexandre Courbot <acourbot@chromium.org> Acked-by: Stanimir Varbanov <stanimir.varbanov@linaro.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-04media: imx: work around false-positive warningArnd Bergmann
The IS_ERR()/PTR_ERR() combination confuses gcc to the point that it cannot prove the upstream_ep variable to be initialized: drivers/staging/media/imx/imx-media-csi.c: In function 'csi_link_validate': drivers/staging/media/imx/imx-media-csi.c:1025:20: error: 'upstream_ep' may be used uninitialized in this function [-Werror=maybe-uninitialized] priv->upstream_ep = upstream_ep; ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~ drivers/staging/media/imx/imx-media-csi.c:1026:24: error: 'upstream_ep.bus_type' may be used uninitialized in this function [-Werror=maybe-uninitialized] is_csi2 = (upstream_ep.bus_type == V4L2_MBUS_CSI2); ~~~~~~~~~~~^~~~~~~~~ drivers/staging/media/imx/imx-media-csi.c:127:19: error: 'upstream_ep.bus.parallel.bus_width' may be used uninitialized in this function [-Werror=maybe-uninitialized] I could come up with no good way to rewrite this function, as a last resort, this adds an explicit zero-intialization of the structure. Fixes: 52e17089d185 ("media: imx: Don't initialize vars that won't be used") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-04openrisc: Set CONFIG_MULTI_IRQ_HANDLERPalmer Dabbelt
arm has an optional MULTI_IRQ_HANDLER, which openrisc copied but didn't make optional. The multi irq handler infrastructure has been copied to generic code selectable with a new config symbol. That symbol can be selected by randconfig builds and can cause build breakage. Introduce CONFIG_MULTI_IRQ_HANDLER as an intermediate step which prevents the core config symbol from being selected. The openrisc local config symbol will be removed once openrisc gets converted to the generic code. Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Link: https://lkml.kernel.org/r/20180404043130.31277-3-palmer@sifive.com
2018-04-04arm64: Set CONFIG_MULTI_IRQ_HANDLERPalmer Dabbelt
arm has an optional MULTI_IRQ_HANDLER, which arm64 copied but didn't make optional. The multi irq handler infrastructure has been copied to generic code selectable with a new config symbol. That symbol can be selected by randconfig builds and can cause build breakage. Introduce CONFIG_MULTI_IRQ_HANDLER as an intermediate step which prevents the core config symbol from being selected. The arm64 local config symbol will be removed once arm64 gets converted to the generic code. Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Link: https://lkml.kernel.org/r/20180404043130.31277-2-palmer@sifive.com
2018-04-04genirq: Make GENERIC_IRQ_MULTI_HANDLER depend on !MULTI_IRQ_HANDLERPalmer Dabbelt
These config switches enable the same code in the core and the not yet converted architecture code. They can be selected both by randconfig builds and cause linker error because the same symbols are defined twice. Make the new GENERIC_IRQ_MULTI_HANDLER depend on !MULTI_IRQ_HANDLER to prevent that. The dependency will be removed once all architectures are converted over. Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Link: https://lkml.kernel.org/r/20180404043130.31277-4-palmer@sifive.com
2018-04-04media: r820t: don't crash if attach failsMauro Carvalho Chehab
As pointed by smatch: drivers/media/tuners/r820t.c:2374 r820t_attach() error: potential null dereference 'priv'. (kzalloc returns null) The current function with prints error assumes that the attach succeeds. So, don't use it in case of failures. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-04kernel/bpf/syscall: fix warning defined but not usedAnders Roxell
There will be a build warning -Wunused-function if CONFIG_CGROUP_BPF isn't defined, since the only user is inside #ifdef CONFIG_CGROUP_BPF: kernel/bpf/syscall.c:1229:12: warning: ‘bpf_prog_attach_check_attach_type’ defined but not used [-Wunused-function] static int bpf_prog_attach_check_attach_type(const struct bpf_prog *prog, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Current code moves function bpf_prog_attach_check_attach_type inside ifdef CONFIG_CGROUP_BPF. Fixes: 5e43f899b03a ("bpf: Check attach type at prog load time") Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-04-04bpf: sockmap, duplicates release calls may NULL sk_protJohn Fastabend
It is possible to have multiple ULP tcp_release call paths in flight if a sock is closed and simultaneously being removed from the sockmap control path. The result would be setting the sk_prot to the saved values on the first iteration and then on the second iteration setting the value to NULL. This patch resolves this by ensuring we only reset the sk_prot pointer if we have a valid saved state to set. Fixes: 4f738adba30a7 ("bpf: create tcp_bpf_ulp allowing BPF to monitor socket TX/RX data") Signed-off-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-04-04bpf: sockmap, free memory on sock close with cork dataJohn Fastabend
If a socket with pending cork data is closed we do not return the memory to the socket until the garbage collector free's the psock structure. The garbage collector though can run after the sock has completed its close operation. If this ordering happens the sock code will through a WARN_ON because there is still outstanding memory accounted to the sock. To resolve this ensure we return memory to the sock when a socket is closed. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Fixes: 91843d540a13 ("bpf: sockmap, add msg_cork_bytes() helper") Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-04-04powerpc/mm/radix: Update command line parsing for disable_radixAneesh Kumar K.V
kernel parameter disable_radix takes different options disable_radix=yes|no|1|0 or just disable_radix. prom_init parsing is not supporting these options. Fixes: 1fd6c0220710 ("powerpc/mm: Add a CONFIG option to choose if radix is used by default") Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-04-04powerpc/mm/radix: Parse disable_radix commandline correctly.Aneesh Kumar K.V
kernel parameter disable_radix takes different options disable_radix=yes|no|1|0 or just disable_radix. When using the later format we get below error. `Malformed early option 'disable_radix'` Fixes: 1fd6c0220710 ("powerpc/mm: Add a CONFIG option to choose if radix is used by default") Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-04-04powerpc/mm/hugetlb: initialize the pagetable cache correctly for hugetlbAneesh Kumar K.V
With 64k page size, we have hugetlb pte entries at the pmd and pud level for book3s64. We don't need to create a separate page table cache for that. With 4k we need to make sure hugepd page table cache for 16M is placed at PUD level and 16G at the PGD level. Simplify all these by not using HUGEPD_PD_SHIFT which is confusing for book3s64. Without this patch, with 64k page size we create pagetable caches with shift value 10 and 7 which are not used at all. Fixes: 419df06eea5b ("powerpc: Reduce the PTE_INDEX_SIZE") Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-04-04powerpc/mm/radix: Update pte fragment count from 16 to 256 on radixAneesh Kumar K.V
With split PTL (page table lock) config, we allocate the level 4 (leaf) page table using pte fragment framework instead of slab cache like other levels. This was done to enable us to have split page table lock at the level 4 of the page table. We use page->plt backing the all the level 4 pte fragment for the lock. Currently with Radix, we use only 16 fragments out of the allocated page. In radix each fragment is 256 bytes which means we use only 4k out of the allocated 64K page wasting 60k of the allocated memory. This was done earlier to keep it closer to hash. This patch update the pte fragment count to 256, thereby using the full 64K page and reducing the memory usage. Performance tests shows really low impact even with THP disabled. With THP disabled we will be contenting further less on level 4 ptl and hence the impact should be further low. 256 threads: without patch (10 runs of ./ebizzy -m -n 1000 -s 131072 -S 100) median = 15678.5 stdev = 42.1209 with patch: median = 15354 stdev = 194.743 This is with THP disabled. With THP enabled the impact of the patch will be less. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-04-04powerpc/mm/keys: Update documentation and remove unnecessary checkAneesh Kumar K.V
Adds more code comments. We also remove an unnecessary pkey check after we check for pkey error in this patch. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-04-04Merge branch 'old.dcache' into work.dcacheAl Viro
2018-04-03RDMA: Use ib_gid_attr during GID modificationParav Pandit
Now that ib_gid_attr contains device, port and index, simplify the provider APIs add_gid() and del_gid() to use device, port and index fields from the ib_gid_attr attributes structure. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-04-03IB/providers: Avoid null netdev check for RoCEParav Pandit
Now that IB core GID cache ensures that all RoCE entries have an associated netdev remove null checks from the provider drivers for clarity. Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-04-03IB/providers: Avoid zero GID check for RoCEParav Pandit
Now that the IB core GID cache ensures that a zero GID doesn't exist in the GID table remove zero GID checks from the provider drivers for clarity. Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-04-03IB/core: Refactor GID modify code for RoCEParav Pandit
Code is refactored to prepare separate functions for RoCE which can do more complex operations related to reference counting, while still maintainining code readability. This includes (a) Simplification to not perform netdevice checks and modifications for IB link layer. (b) Do not add RoCE GID entry which has NULL netdevice; instead return an error. (c) If GID addition fails at provider level add_gid(), do not add the entry in the cache and keep the entry marked as INVALID. (d) Simplify and reuse the ib_cache_gid_add()/del() routines so that they can be used even for modifying default GIDs. This avoid some code duplication in modifying default GIDs. (e) find_gid() routine refers to the data entry flags to qualify a GID as valid or invalid GID rather than depending on attributes and zeroness of the GID content. (f) gid_table_reserve_default() sets the GID default attribute at beginning while setting up the GID table. There is no need to use default_gid flag in low level functions such as write_gid(), add_gid(), del_gid(), as they never need to update the DEFAULT property of the GID entry while during GID table update. As as result of this refactor, reserved GID 0:0:0:0:0:0:0:0 is no longer searchable as described below. A unicast GID entry of 0:0:0:0:0:0:0:0 is Reserved GID as per the IB spec version 1.3 section 4.1.1, point (6) whose snippet is below. "The unicast GID address 0:0:0:0:0:0:0:0 is reserved - referred to as the Reserved GID. It shall never be assigned to any endport. It shall not be used as a destination address or in a global routing header (GRH)." GID table cache now only stores valid GID entries. Before this patch, Reserved GID 0:0:0:0:0:0:0:0 was searchable in the GID table using ib_find_cached_gid_by_port() and other similar find routines. Zero GID is no longer searchable as it shall not to be present in GRH or path recored entry as described in IB spec version 1.3 section 4.1.1, point (6), section 12.7.10 and section 12.7.20. ib_cache_update() is simplified to check link layer once, use unified locking scheme for all link layers, removed temporary gid table allocation/free logic. Additionally, (a) Expand ib_gid_attr to store port and index so that GID query routines can get port and index information from the attribute structure. (b) Expand ib_gid_attr to store device as well so that in future code when GID reference counting is done, device is used to reach back to the GID table entry. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-04-03IB/core: Simplify ib_query_gid to always refer to cacheParav Pandit
Currently following inconsistencies exist. 1. ib_query_gid() returns GID from the software cache for a RoCE port and returns GID from the HCA for an IB port. This is incorrect because software GID cache is maintained regardless of HCA port type. 2. GID is queries from the HCA via ib_query_gid and updated in the software cache for IB link layer. Both of them might not be in sync. ULPs such as SRP initiator, SRP target, IPoIB driver have historically used ib_query_gid() API to query the GID. However CM used cached version during CM processing, When software cache was introduced, this inconsitency remained. In order to simplify, improve readability and avoid link layer specific above inconsistencies, this patch brings following changes. 1. ib_query_gid() always refers to the cache layer regardless of link layer. 2. cache module who reads the GID entry from HCA and builds the cache, directly invokes the HCA provider verb's query_gid() callback function. 3. ib_query_port() is being called in early stage where GID cache is not yet build while reading port immutable property. Therefore it needs to read the default GID from the HCA for IB link layer to publish the subnet prefix. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-04-03RDMA/providers: Simplify query_gid callback of RoCE providersParav Pandit
ib_query_gid() fetches the GID from the software cache maintained in ib_core for RoCE ports. Therefore, simplify the provider drivers for RoCE to treat query_gid() callback as never called for RoCE, and only require non-RoCE devices to implement it. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-04-03RDMA/core: Update query_gid documentation for HCA driversParav Pandit
query_gid() should return right GID value for iWarp and IB link layers. It is a no-op for RoCE link layer. Update the documentation to reflect this. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-04-03RDMA/ucma: Don't allow setting RDMA_OPTION_IB_PATH without an RDMA deviceRoland Dreier
Check to make sure that ctx->cm_id->device is set before we use it. Otherwise userspace can trigger a NULL dereference by doing RDMA_USER_CM_CMD_SET_OPTION on an ID that is not bound to a device. Cc: <stable@vger.kernel.org> Reported-by: <syzbot+a67bc93e14682d92fc2f@syzkaller.appspotmail.com> Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-04-03Merge branch 'userns-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull namespace updates from Eric Biederman: "There was a lot of work this cycle fixing bugs that were discovered after the merge window and getting everything ready where we can reasonably support fully unprivileged fuse. The bug fixes you already have and much of the unprivileged fuse work is coming in via other trees. Still left for fully unprivileged fuse is figuring out how to cleanly handle .set_acl and .get_acl in the legacy case, and properly handling of evm xattrs on unprivileged mounts. Included in the tree is a cleanup from Alexely that replaced a linked list with a statically allocated fix sized array for the pid caches, which simplifies and speeds things up. Then there is are some cleanups and fixes for the ipc namespace. The motivation was that in reviewing other code it was discovered that access ipc objects from different pid namespaces recorded pids in such a way that when asked the wrong pids were returned. In the worst case there has been a measured 30% performance impact for sysvipc semaphores. Other test cases showed no measurable performance impact. Manfred Spraul and Davidlohr Bueso who tend to work on sysvipc performance both gave the nod that this is good enough. Casey Schaufler and James Morris have given their approval to the LSM side of the changes. I simplified the types and the code dealing with sysvipc to pass just kern_ipc_perm for all three types of ipc. Which reduced the header dependencies throughout the kernel and simplified the lsm code. Which let me work on the pid fixes without having to worry about trivial changes causing complete kernel recompiles" * 'userns-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: ipc/shm: Fix pid freeing. ipc/shm: fix up for struct file no longer being available in shm.h ipc/smack: Tidy up from the change in type of the ipc security hooks ipc: Directly call the security hook in ipc_ops.associate ipc/sem: Fix semctl(..., GETPID, ...) between pid namespaces ipc/msg: Fix msgctl(..., IPC_STAT, ...) between pid namespaces ipc/shm: Fix shmctl(..., IPC_STAT, ...) between pid namespaces. ipc/util: Helpers for making the sysvipc operations pid namespace aware ipc: Move IPCMNI from include/ipc.h into ipc/util.h msg: Move struct msg_queue into ipc/msg.c shm: Move struct shmid_kernel into ipc/shm.c sem: Move struct sem and struct sem_array into ipc/sem.c msg/security: Pass kern_ipc_perm not msg_queue into the msg_queue security hooks shm/security: Pass kern_ipc_perm not shmid_kernel into the shm security hooks sem/security: Pass kern_ipc_perm not sem_array into the sem security hooks pidns: simpler allocation of pid_* caches
2018-04-03orangefs: document package install and xfstests procedureMartin Brandenburg
Unless one is working on the userspace code, there's no need to compile OrangeFS. The package works just fine. (But leave the documentation for building from source since not everyone uses distributions which include the package.) Also document the process to run xfstests against OrangeFS. Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2018-04-03orangefs: remove unused codeMartin Brandenburg
Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2018-04-03orangefs: make several *_operations structs staticMartin Brandenburg
Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2018-04-03orangefs: implement vm_ops->faultMartin Brandenburg
Must retrieve size before running filemap_fault so the kernel has an up-to-date size. This should have been caught by xfstests generic/246, but it was masked by orangefs_new_inode, which set i_size to PAGE_SIZE. When nothing caused a getattr prior to a pagefault, i_size was still PAGE_SIZE. Since xfstests only read 10 bytes, it did not catch this bug. When orangefs_new_inode was modified to perform a getattr instead, i_size was set to zero, as it was a newly created file. Then orangefs_file_write_iter did NOT set i_size. Instead it invalidated the attribute cache, which should have caused the next caller to retrieve i_size. But the fault handler did not know it was supposed to retrieve i_size. So during xfstests, i_size was still zero, and filemap_fault returned VM_FAULT_SIGBUS. Fixes xfstests generic/452. Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2018-04-03f2fs: remain written times to update inode during fsyncJaegeuk Kim
This fixes xfstests/generic/392. The failure was caused by different times between 1) one marked in the last fsync(2) call and 2) the other given by roll-forward recovery after power-cut. The reason was that we skipped updating inode block at 1), since its i_size was recoverable along with 4KB-aligned data writes, which was fixed by: "f2fs: fix a wrong condition in f2fs_skip_inode_update" Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-04-04powerpc/64s/idle: POWER9 ESL=0 stop avoid save/restore overheadNicholas Piggin
When stop is executed with EC=ESL=0, it appears to execute like a normal instruction (resuming from NIP when woken by interrupt). So all the save/restore handling can be avoided completely. In particular NV GPRs do not have to be saved, and MSR does not have to be switched back to kernel MSR. So move the test for EC=ESL=0 sleep states out to power9_idle_stop, and return directly to the caller after stop in that case. This improves performance for ping-pong benchmark with the stop0_lite idle state by 2.54% for 2 threads in the same core, and 2.57% for different cores. Performance increase with HV_POSSIBLE defined will be improved further by avoiding the hwsync. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-04-03Merge branch 'for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wqLinus Torvalds
Pull workqueue updates from Tejun Heo: "rcu_work addition and a couple trivial changes" * 'for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: remove the comment about the old manager_arb mutex workqueue: fix the comments of nr_idle fs/aio: Use rcu_work instead of explicit rcu and work item cgroup: Use rcu_work instead of explicit rcu and work item RCU, workqueue: Implement rcu_work
2018-04-03Merge branch 'for-4.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata updates from Tejun Heo: "Nothing too interesting. The biggest change is refcnting fix for ata_host - the bug is recent and can only be triggered on controller hotplug, so very few are hitting it. There also are a number of trivial license / error message changes and some hardware specific changes" * 'for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (23 commits) ahci: imx: add the imx8qm ahci sata support libata: ensure host is free'd on error exit paths ata: ahci-platform: add reset control support ahci: imx: fix the build warning ata: add Amiga Gayle PATA controller driver ahci: imx: add the imx6qp ahci sata support ata: change Tegra124 to Tegra ata: ahci_tegra: Add AHCI support for Tegra210 ata: ahci_tegra: disable DIPM ata: ahci_tegra: disable devslp for Tegra124 ata: ahci_tegra: initialize regulators from soc struct ata: ahci_tegra: Update initialization sequence dt-bindings: Tegra210: add binding documentation libata: add refcounting to ata_host pata_bk3710: clarify license version and use SPDX header pata_falcon: clarify license version and use SPDX header pata_it821x: Delete an error message for a failed memory allocation in it821x_firmware_command() pata_macio: Delete an error message for a failed memory allocation in two functions pata_mpc52xx: Delete an error message for a failed memory allocation in mpc52xx_ata_probe() sata_dwc_460ex: Delete an error message for a failed memory allocation in sata_dwc_port_start() ...
2018-04-03Merge branch 'fixes' into miscJames Bottomley
Somewhat nasty merge due to conflicts between "33b28357dd00 scsi: qla2xxx: Fix Async GPN_FT for FCP and FC-NVMe scan" and "2b5b96473efc scsi: qla2xxx: Fix FC-NVMe LUN discovery" Merge is non-trivial and has been verified by Qlogic (Cavium) Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
2018-04-03Merge tag 'media/v4.17-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - new CEC pin injection code for testing purposes - DVB frontend cxd2099 promoted from staging - new platform driver for Sony cxd2880 DVB devices - new sensor drivers: mt9t112, ov2685, ov5695, ov772x, tda1997x, tw9910.c - removal of unused cx18 and ivtv alsa mixers - the reneseas-ceu driver doesn't depend on soc_camera anymore and moved from staging - removed the mantis_vp3028 driver, unused since 2009 - s5p-mfc: add support for version 10 of the MSP - added a decoder for imon protocol - atomisp: lots of cleanups - imx074 and mt9t031: don't depend on soc_camera anymore, being promoted from staging - added helper functions to better support DVB I2C binding - lots of driver improvements and cleanups * tag 'media/v4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (438 commits) media: v4l2-ioctl: rename a temp var that stores _IOC_SIZE(cmd) media: fimc-capture: get rid of two warnings media: dvb-usb-v2: fix a missing dependency of I2C_MUX media: uvc: to the right check at uvc_ioctl_enum_framesizes() media: cec-core: fix a bug at cec_error_inj_write() media: tda9840: cleanup a warning media: tm6000: avoid casting just to print pointer address media: em28xx-input: improve error handling code media: zr364xx: avoid casting just to print pointer address media: vivid-radio-rx: add a cast to avoid a warning media: saa7134-alsa: don't use casts to print a buffer address media: solo6x10: get rid of an address space warning media: zoran: don't cast pointers to print them media: ir-kbd-i2c: change the if logic to avoid a warning media: ir-kbd-i2c: improve error handling code media: saa7134-input: improve error handling media: s2255drv: fix a casting warning media: ivtvfb: Cleanup some warnings media: videobuf-dma-sg: Fix a weird cast soc_camera: fix a weird cast on printk ...
2018-04-03Merge tag 'kconfig-v4.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kconfig updates from Masahiro Yamada: - improve checkpatch for more precise Kconfig code checking - clarify effective selects by grouping reverse dependencies in help - do not write out '# CONFIG_FOO is not set' from invisible symbols - make oldconfig as silent as it should be - rename 'silentoldconfig' to 'syncconfig' - add unit-test framework and several test cases - warn unmet dependency of tristate symbols - make unmet dependency warnings readable, removing false positives - improve recursive include detection - use yylineno to simplify the line number tracking - misc cleanups * tag 'kconfig-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (30 commits) kconfig: use yylineno option instead of manual lineno increments kconfig: detect recursive inclusion earlier kconfig: remove duplicated file name and lineno of recursive inclusion kconfig: do not include both curses.h and ncurses.h for nconfig kconfig: make unmet dependency warnings readable kconfig: warn unmet direct dependency of tristate symbols selected by y kconfig: tests: test if recursive inclusion is detected kconfig: tests: test if recursive dependencies are detected kconfig: tests: test randconfig for choice in choice kconfig: tests: test defconfig when two choices interact kconfig: tests: check visibility of tristate choice values in y choice kconfig: tests: check unneeded "is not set" with unmet dependency kconfig: tests: test if new symbols in choice are asked kconfig: tests: test automatic submenu creation kconfig: tests: add basic choice tests kconfig: tests: add framework for Kconfig unit testing kbuild: add PYTHON2 and PYTHON3 variables kconfig: remove redundant streamline_config.pl prerequisite kconfig: rename silentoldconfig to syncconfig kconfig: invoke oldconfig instead of silentoldconfig from local*config ...
2018-04-04powerpc/64s/idle: Consolidate power9_offline_stop()/power9_idle_stop()Michael Ellerman
Commit 3d4fbffdd703 ("powerpc/64s/idle: POWER9 implement a separate idle stop function for hotplug") that added power9_offline_stop() was written before commit 7672691a08c8 ("powerpc/powernv: Provide a way to force a core into SMT4 mode"). When merging the former I failed to notice that it caused us to skip the force-SMT4 logic for offline CPUs. The result is that offlined CPUs will not correctly participate in the force-SMT4 logic, which presumably will result in badness (not tested). Reconcile the two commits by making power9_offline_stop() a pre-cursor to power9_idle_stop(), so that they share the force-SMT4 logic. This is based on an original commit from Nick, all breakage is my own. Fixes: 3d4fbffdd703 ("powerpc/64s/idle: POWER9 implement a separate idle stop function for hotplug") Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
2018-04-03Merge tag 'kbuild-v4.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild updates from Masahiro Yamada: - add a shell script to get Clang version - improve portability of build scripts - drop always-enabled CONFIG_THIN_ARCHIVE and remove unused code - rename built-in.o which is now thin archive to built-in.a - process clean/build targets one by one to get along with -j option - simplify ld-option - improve building with CONFIG_TRIM_UNUSED_KSYMS - define KBUILD_MODNAME even for objects shared among multiple modules - avoid linking multiple instances of same objects from composite objects - move <linux/compiler_types.h> to c_flags to include it only for C files - clean-up various Makefiles * tag 'kbuild-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (29 commits) kbuild: get <linux/compiler_types.h> out of <linux/kconfig.h> kbuild: clean up link rule of composite modules kbuild: clean up archive rule of built-in.a kbuild: remove partial section mismatch detection for built-in.a net: liquidio: clean up Makefile for simpler composite object handling lib: zstd: clean up Makefile for simpler composite object handling kbuild: link $(real-obj-y) instead of $(obj-y) into built-in.a kbuild: rename real-objs-y/m to real-obj-y/m kbuild: move modname and modname-multi close to modname_flags kbuild: simplify modname calculation kbuild: fix modname for composite modules kbuild: define KBUILD_MODNAME even if multiple modules share objects kbuild: remove unnecessary $(subst $(obj)/, , ...) in modname-multi kbuild: Use ls(1) instead of stat(1) to obtain file size kbuild: link vmlinux only once for CONFIG_TRIM_UNUSED_KSYMS kbuild: move include/config/ksym/* to include/ksym/* kbuild: move CONFIG_TRIM_UNUSED_KSYMS code unneeded for external module kbuild: restore autoksyms.h touch to the top Makefile kbuild: move 'scripts' target below kbuild: remove wrong 'touch' in adjust_autoksyms.sh ...
2018-04-03Merge branch 'parisc-4.17-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc updates from Helge Deller: "Lots of small enhancements and fixes in this patchset: - improved the x86-64 compatibility for PCI cards by returning -1UL for timed out MMIO transactions (instead of crashing) - fixed HPMC handler for PAT machines: size needs to be multiple of 16 - prepare machine_power_off() to be able to turn rp3410 and c8000 machines off via IMPI - added code to extract machine info for usage with qemu - some init sections fixes - lots of fixes for sparse-, ubsan- and uninitalized variables warnings" * 'parisc-4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Fix out of array access in match_pci_device() parisc: Add code generator for Qemu/SeaBIOS machine info parisc/pci: Switch LBA PCI bus from Hard Fail to Soft Fail mode parisc: Fix HPMC handler by increasing size to multiple of 16 bytes parisc: Directly call machine_power_off() in power button driver parisc: machine_power_off() should call pm_power_off() parisc/Kconfig: SMP kernels boot on all machines parisc: Silence uninitialized variable warning in dbl_to_sgl_fcnvff() parisc: Move various functions and strings to init section parisc: Convert MAP_TYPE to cover 4 bits on parisc parisc: Force to various endian types for sparse parisc/gscps2: Fix sparse warnings parisc/led: Fix sparse warnings parisc/parport_gsc: Use NULL to avoid sparse warning parisc/stifb: Use fb_memset() to avoid sparse warning
2018-04-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-nextLinus Torvalds
Pull sparc updates from David Miller: 1) Add support for ADI (Application Data Integrity) found in more recent sparc64 cpus. Essentially this is keyed based access to virtual memory, and if the key encoded in the virual address is wrong you get a trap. The mm changes were reviewed by Andrew Morton and others. Work by Khalid Aziz. 2) Validate DAX completion index range properly, from Rob Gardner. 3) Add proper Kconfig deps for DAX driver. From Guenter Roeck. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: sparc64: Make atomic_xchg() an inline function rather than a macro. sparc64: Properly range check DAX completion index sparc: Make auxiliary vectors for ADI available on 32-bit as well sparc64: Oracle DAX driver depends on SPARC64 sparc64: Update signal delivery to use new helper functions sparc64: Add support for ADI (Application Data Integrity) mm: Allow arch code to override copy_highpage() mm: Clear arch specific VM flags on protection change mm: Add address parameter to arch_validate_prot() sparc64: Add auxiliary vectors to report platform ADI properties sparc64: Add handler for "Memory Corruption Detected" trap sparc64: Add HV fault type handlers for ADI related faults sparc64: Add support for ADI register fields, ASIs and traps mm, swap: Add infrastructure for saving page metadata on swap signals, sparc: Add signal codes for ADI violations
2018-04-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds
Pull networking updates from David Miller: 1) Support offloading wireless authentication to userspace via NL80211_CMD_EXTERNAL_AUTH, from Srinivas Dasari. 2) A lot of work on network namespace setup/teardown from Kirill Tkhai. Setup and cleanup of namespaces now all run asynchronously and thus performance is significantly increased. 3) Add rx/tx timestamping support to mv88e6xxx driver, from Brandon Streiff. 4) Support zerocopy on RDS sockets, from Sowmini Varadhan. 5) Use denser instruction encoding in x86 eBPF JIT, from Daniel Borkmann. 6) Support hw offload of vlan filtering in mvpp2 dreiver, from Maxime Chevallier. 7) Support grafting of child qdiscs in mlxsw driver, from Nogah Frankel. 8) Add packet forwarding tests to selftests, from Ido Schimmel. 9) Deal with sub-optimal GSO packets better in BBR congestion control, from Eric Dumazet. 10) Support 5-tuple hashing in ipv6 multipath routing, from David Ahern. 11) Add path MTU tests to selftests, from Stefano Brivio. 12) Various bits of IPSEC offloading support for mlx5, from Aviad Yehezkel, Yossi Kuperman, and Saeed Mahameed. 13) Support RSS spreading on ntuple filters in SFC driver, from Edward Cree. 14) Lots of sockmap work from John Fastabend. Applications can use eBPF to filter sendmsg and sendpage operations. 15) In-kernel receive TLS support, from Dave Watson. 16) Add XDP support to ixgbevf, this is significant because it should allow optimized XDP usage in various cloud environments. From Tony Nguyen. 17) Add new Intel E800 series "ice" ethernet driver, from Anirudh Venkataramanan et al. 18) IP fragmentation match offload support in nfp driver, from Pieter Jansen van Vuuren. 19) Support XDP redirect in i40e driver, from Björn Töpel. 20) Add BPF_RAW_TRACEPOINT program type for accessing the arguments of tracepoints in their raw form, from Alexei Starovoitov. 21) Lots of striding RQ improvements to mlx5 driver with many performance improvements, from Tariq Toukan. 22) Use rhashtable for inet frag reassembly, from Eric Dumazet. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1678 commits) net: mvneta: improve suspend/resume net: mvneta: split rxq/txq init and txq deinit into SW and HW parts ipv6: frags: fix /proc/sys/net/ipv6/ip6frag_low_thresh net: bgmac: Fix endian access in bgmac_dma_tx_ring_free() net: bgmac: Correctly annotate register space route: check sysctl_fib_multipath_use_neigh earlier than hash fix typo in command value in drivers/net/phy/mdio-bitbang. sky2: Increase D3 delay to sky2 stops working after suspend net/mlx5e: Set EQE based as default TX interrupt moderation mode ibmvnic: Disable irqs before exiting reset from closed state net: sched: do not emit messages while holding spinlock vlan: also check phy_driver ts_info for vlan's real device Bluetooth: Mark expected switch fall-throughs Bluetooth: Set HCI_QUIRK_SIMULTANEOUS_DISCOVERY for BTUSB_QCA_ROME Bluetooth: btrsi: remove unused including <linux/version.h> Bluetooth: hci_bcm: Remove DMI quirk for the MINIX Z83-4 sh_eth: kill useless check in __sh_eth_get_regs() sh_eth: add sh_eth_cpu_data::no_xdfar flag ipv6: factorize sk_wmem_alloc updates done by __ip6_append_data() ipv4: factorize sk_wmem_alloc updates done by __ip_append_data() ...
2018-04-03Merge tag 'docs-4.17' of git://git.lwn.net/linuxLinus Torvalds
Pull documentation updates from Jonathan Corbet: "There's been a fair amount of activity in Documentation/ this time around: - Lots of work aligning Documentation/ABI with reality, done by Aishwarya Pant. - The trace documentation has been converted to RST by Changbin Du - I thrashed up kernel-doc to deal with a parsing issue and to try to make the code more readable. It's still a 20+-year-old Perl hack, though. - Lots of other updates, typo fixes, and more" * tag 'docs-4.17' of git://git.lwn.net/linux: (82 commits) Documentation/process: update FUSE project website docs: kernel-doc: fix parsing of arrays dmaengine: Fix spelling for parenthesis in dmatest documentation dmaengine: Make dmatest.rst indeed reST compatible dmaengine: Add note to dmatest documentation about supported channels Documentation: magic-numbers: Fix typo Documentation: admin-guide: add kvmconfig, xenconfig and tinyconfig commands Input: alps - Update documentation for trackstick v3 format Documentation: Mention why %p prints ptrval COPYING: use the new text with points to the license files COPYING: create a new file with points to the Kernel license files Input: trackpoint: document sysfs interface xfs: Change URL for the project in xfs.txt char/bsr: add sysfs interface documentation acpi: nfit: document sysfs interface block: rbd: update sysfs interface Documentation/sparse: fix typo Documentation/CodingStyle: Add an example for braces docs/vm: update 00-INDEX kernel-doc: Remove __sched markings ...
2018-04-03nfsd: fix incorrect umasksJ. Bruce Fields
We're neglecting to clear the umask after it's set, which can cause a later unrelated rpc to (incorrectly) use the same umask if it happens to be processed by the same thread. There's a more subtle problem here too: An NFSv4 compound request is decoded all in one pass before any operations are executed. Currently we're setting current->fs->umask at the time we decode the compound. In theory a single compound could contain multiple creates each setting a umask. In that case we'd end up using whichever umask was passed in the *last* operation as the umask for all the creates, whether that was correct or not. So, we should just be saving the umask at decode time and waiting to set it until we actually process the corresponding operation. In practice it's unlikely any client would do multiple creates in a single compound. And even if it did they'd likely be from the same process (hence carry the same umask). So this is a little academic, but we should get it right anyway. Fixes: 47057abde515 (nfsd: add support for the umask attribute) Cc: stable@vger.kernel.org Reported-by: Lucash Stach <l.stach@pengutronix.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>