- 16 Oct, 2016 21 commits
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Liang Zhen authored
If user wants to create CPT table that can match numa topology, she has to query cpu & numa topology, then provide a pattern string to describe the topology, this is inconvenient. To improve it, this patch can support shortcut expression "N" or "n" to create CPT table from NUMA & CPU topology Signed-off-by:
Liang Zhen <liang.zhen@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6325 Reviewed-on: http://review.whamcloud.com/14049Reviewed-by:
Olaf Weber <olaf@sgi.com> Reviewed-by:
Bobi Jam <bobijam@hotmail.com> Reviewed-by:
Oleg Drokin <oleg.drokin@intel.com> Signed-off-by:
James Simmons <jsimmons@infradead.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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wang di authored
Default dir stripe index should only work during mkdir, otherwise it will cause other open/create request being sent to the wrong MDT. Signed-off-by:
wang di <di.wang@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6373 Reviewed-on: http://review.whamcloud.com/14096Reviewed-by:
Alex Zhuravlev <alexey.zhuravlev@intel.com> Reviewed-by:
Fan Yong <fan.yong@intel.com> Reviewed-by:
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Sebastien Buisson authored
Return -ECONNREFUSED instead of -ENOMEM in sptlrpc_req_get_ctx() if no context is found in req. It is more graceful. Signed-off-by:
Sebastien Buisson <sebastien.buisson@bull.net> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6356 Reviewed-on: http://review.whamcloud.com/14043Reviewed-by:
Dmitry Eremin <dmitry.eremin@intel.com> Reviewed-by:
Andrew Perepechko <andrew.perepechko@seagate.com> Reviewed-by:
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Bobi Jam authored
* replace struct ll_user_fiemap with struct fiemap * replace struct ll_fiemap_extent with struct fiemap_extent * remove kernel defined FIEMAP_EXTENT_* constants * remove kernel defined FIEMAP_FLAG_* flags * add member prefix for struct ll_fiemap_info_key * Add cl_object_operations::coo_fiemap(). * Add cl_object_fiemap() to get FIEMAP mappings. Signed-off-by:
Bobi Jam <bobijam.xu@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5823 Reviewed-on: http://review.whamcloud.com/12535 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6201 Reviewed-on: http://review.whamcloud.com/13608Reviewed-by:
John L. Hammond <john.hammond@intel.com> Reviewed-by:
Jinshan Xiong <jinshan.xiong@intel.com> Reviewed-by:
Yang Sheng <yang.sheng@intel.com> Reviewed-by:
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frank zago authored
A lot of symbols don't need to be exported at all because they are only used in the module they belong to. Signed-off-by:
frank zago <fzago@cray.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5829 Reviewed-on: http://review.whamcloud.com/13324Reviewed-by:
James Simmons <uja.ornl@gmail.com> Reviewed-by:
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Jinshan Xiong authored
In this implementation, read ahead will hold the underlying DLM lock to add read ahead pages. A new cl_io operation cio_read_ahead() is added for this purpose. It takes parameter cl_read_ahead{} so that each layer can adjust it by their own requirements. For example, at OSC layer, it will make sure the read ahead region is covered by a LDLM lock; at the LOV layer, it will make sure that the region won't cross stripe boundary. Legacy callback cpo_is_under_lock() is removed. Signed-off-by: -
John L. Hammond authored
Remove the unused OBD MD API method md_done_writing(). Remove the unused logcookie and struct md_open_data ** parameters from md_setattr(). Remove the unused functions iattr_from_obdo(), md_from_obdo(), and obdo_refresh_inode(). Signed-off-by:
Andreas Dilger <andreas.dilger@intel.com> Reviewed-by:
Henri Doreau <henri.doreau@cea.fr> Reviewed-by:
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John L. Hammond authored
Size on MDS support have been in preview since at least 2.0.0. Remove support for it from lustre/llite/. Signed-off-by:
Lai Siyao <lai.siyao@intel.com> Reviewed-by:
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Patrick Valentin authored
When unloading a module, it may happen that lu_context_key_degister() removes a key while a thread is either registering it in a new context (lu_context_init(), lu_context_refill()), or using it when exiting from a context (lu_context__exit(), lu_context__fini()). In these cases, we reference a key which no longer exists, and the system crashes either because we use a *POISON'ed* pointer in key_fini() -> key->lct_fini(), or because one of the following assertions fails: - lu_context_key_degister(): ASSERTION(cfs_atomic_read(&key->lct_used) == 1) failed: key has instances: 2 - lu_context_exit(): ASSERTION(key != NULL) - key_fini(): ASSERTION(atomic_read(&key->lct_used) > 1) This can also leads to SLAB objects which are not freed: slab error in kmem_cache_destroy(): cache `echo_thread_kmem': Can't free all objects Note: ptlrpc service threads need to call lu_context_init/fini in each loop (for each RPC), and this could be a big performance issue on fat SMP machines if we add serialization by a spinlock and need to lock/unlock it for multiple times for each RPC. So the aim of this patch, which only impacts some low frequently used functions, is: 1) to add a synchronization in lu_context_key_quiesce(), also called by lu_context_key_degister(), to wait until all key::lct_init() methods have completed, by serializing with keys_fill() 2) to add a synchronization in lu_context_key_degister(), to wait until all transient contexts referencing this key have run key::lct_fini() method Signed-off-by:Patrick Valentin <patrick.valentin@bull.net> Signed-off-by:
Gregoire Pichon <gregoire.pichon@bull.net> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6049 Reviewed-on: http://review.whamcloud.com/13164Reviewed-by:
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Bruno Faccini authored
Upon umount, presumably of last device using same OSD back-end, to prepare for module unload, lu_context_key_quiesce() is run to remove all module's key reference in any context linked on lu_context_remembered list. Threads must protect against such transversal processing when exiting from its context. Signed-off-by:
Bruno Faccini <bruno.faccini@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5264 Reviewed-on: http://review.whamcloud.com/13103Reviewed-by:
Mike Pershin <mike.pershin@intel.com> Reviewed-by:
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Bhumika Goyal authored
Remove function remote_event_destroy as it is not used anywhere in the kernel. Function detected using Coccinelle but changes done by hand. Script: @initialize:python@ @@ def display(name,p): print(name,p[0].file) @r1@ identifier func; type T; position p; @@ static T func@p(...) { ... } @r@ identifier r1.func; @@ func @script:python depends on !r@ func << r1.func; p << r1.p; @@ display(func,p) Signed-off-by:Bhumika Goyal <bhumirks@gmail.com> Signed-off-by:
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Chase Metzger authored
Added braces to else statements where checkpatch complained. Signed-off-by:
Chase Metzger <chasemetzger15@gmail.com> Acked-by:
Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by:
Vaibhav Agarwal <vaibhav.sr@gmail.com> Signed-off-by:
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Elizabeth Ferdman authored
Add a blank line after a declaration. Error found by checkpatch. Signed-off-by:
Elizabeth Ferdman <gnudevliz@gmail.com> Reviewed-by:
Mark Greer <mgreer@animalcreek.com> Signed-off-by:
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Hisao Tanabe authored
This patch fix the coding style problem of block comment detected by the checkpatch.pl. WARNING: Block comments use a trailing */ on a separate line Signed-off-by:
Hisao Tanabe <xtanabe@gmail.com> Acked-by:
Johan Hovold <johan@kernel.org> Acked-by:
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Sidhant Gupta authored
Fixes a comment coding style warning by adding 2 blank lines. Issue found by checkpatch. Signed-off-by:
Sidhant Gupta <guptasidhant004@gmail.com> Acked-by:
Vaishali Thakkar <vaishali.thakkar@oracle.com> Acked-by:
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Varsha Rao authored
This patch fixes the checkpatch issue of multiple blank lines, by removing them. Signed-off-by:
Varsha Rao <rvarsha016@gmail.com> Signed-off-by:
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Muraru Mihaela authored
This patch fixes a WARNING: Prefer 'unsigned int' to bare use of 'unsigned', found by checkpatch.pl. By fixing this the types of the parameters of the function become more explicit. Signed-off-by:
Muraru Mihaela <mihaela.muraru21@gmail.com> Signed-off-by:
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Mihaela Muraru authored
This patch fixes the checkpatch.pl warning: "WARNING: do not add new typedefs". Hiding a variables of type 'struct' is not always a good idea,because when we passing them as parameters we tempt to forget that in this proces we work with stack memory and allocatting struct on stack is something that we should manage carefuly. It is also delete the '_t' from the name of the structs and treat a line over 80 character issue in ddk750_mode.c, that appear after my modification. Signed-off-by:
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Eric Anholt authored
This comes from the downstream tree and is needed for the new VCHIQ driver in staging. Signed-off-by:
Eric Anholt <eric@anholt.net> Signed-off-by:
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Eric Anholt authored
Signed-off-by:
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Eric Anholt authored
Signed-off-by:
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- 15 Oct, 2016 15 commits
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Linus Torvalds authored
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git://github.com/luisbg/linux-befsLinus Torvalds authored
Pull befs fixes from Luis de Bethencourt: "I recently took maintainership of the befs file system [0]. This is the first time I send you a git pull request, so please let me know if all the below is OK. Salah Triki and myself have been cleaning the code and fixing a few small bugs. Sorry I couldn't send this sooner in the merge window, I was waiting to have my GPG key signed by kernel members at ELCE in Berlin a few days ago." [0] https://lkml.org/lkml/2016/7/27/502 * tag 'befs-v4.9-rc1' of git://github.com/luisbg/linux-befs: (39 commits) befs: befs: fix style issues in datastream.c befs: improve documentation in datastream.c befs: fix typos in datastream.c befs: fix typos in btree.c befs: fix style issues in super.c befs: fix comment style befs: add check for ag_shift in superblock befs: dump inode_size superblock information befs: remove unnecessary initialization befs: fix typo in befs_sb_info befs: add flags field to validate superblock state befs: fix typo in befs_find_key befs: remove unused BEFS_BT_PARMATCH fs: befs: remove ret variable fs: befs: remove in vain variable assignment fs: befs: remove unnecessary *befs_sb variable fs: befs: remove useless initialization to zero fs: befs: remove in vain variable assignment fs: befs: Insert NULL inode to dentry fs: befs: Remove useless calls to brelse in befs_find_brun_dblindirect ...
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linuxLinus Torvalds authored
Pull gcc plugins update from Kees Cook: "This adds a new gcc plugin named "latent_entropy". It is designed to extract as much possible uncertainty from a running system at boot time as possible, hoping to capitalize on any possible variation in CPU operation (due to runtime data differences, hardware differences, SMP ordering, thermal timing variation, cache behavior, etc). At the very least, this plugin is a much more comprehensive example for how to manipulate kernel code using the gcc plugin internals" * tag 'gcc-plugins-v4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: latent_entropy: Mark functions with __latent_entropy gcc-plugins: Add latent_entropy plugin
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git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds authored
Pull MIPS updates from Ralf Baechle: "This is the main MIPS pull request for 4.9: MIPS core arch code: - traps: 64bit kernels should read CP0_EBase 64bit - traps: Convert ebase to KSEG0 - c-r4k: Drop bc_wback_inv() from icache flush - c-r4k: Split user/kernel flush_icache_range() - cacheflush: Use __flush_icache_user_range() - uprobes: Flush icache via kernel address - KVM: Use __local_flush_icache_user_range() - c-r4k: Fix flush_icache_range() for EVA - Fix -mabi=64 build of vdso.lds - VDSO: Drop duplicated -I*/-E* aflags - tracing: move insn_has_delay_slot to a shared header - tracing: disable uprobe/kprobe on compact branch instructions - ptrace: Fix regs_return_value for kernel context - Squash lines for simple wrapper functions - Move identification of VP(E) into proc.c from smp-mt.c - Add definitions of SYNC barrierstype values - traps: Ensure full EBase is written - tlb-r4k: If there are wired entries, don't use TLBINVF - Sanitise coherentio semantics - dma-default: Don't check hw_coherentio if device is non-coherent - Support per-device DMA coherence - Adjust MIPS64 CAC_BASE to reflect Config.K0 - Support generating Flattened Image Trees (.itb) - generic: Introduce generic DT-based board support - generic: Convert SEAD-3 to a generic board - Enable hardened usercopy - Don't specify STACKPROTECTOR in defconfigs Octeon: - Delete dead code and files across the platform. - Change to use all memory into use by default. - Rename upper case variables in setup code to lowercase. - Delete legacy hack for broken bootloaders. - Leave maintaining the link state to the actual ethernet/PHY drivers. - Add DTS for D-Link DSR-500N. - Fix PCI interrupt routing on D-Link DSR-500N. Pistachio: - Remove ANDROID_TIMED_OUTPUT from defconfig TX39xx: - Move GPIO setup from .mem_setup() to .arch_init() - Convert to Common Clock Framework TX49xx: - Move GPIO setup from .mem_setup() to .arch_init() - Convert to Common Clock Framework txx9wdt: - Add missing clock (un)prepare calls for CCF BMIPS: - Add PW, GPIO SDHCI and NAND device node names - Support APPENDED_DTB - Add missing bcm97435svmb to DT_NONE - Rename bcm96358nb4ser to bcm6358-neufbox4-sercom - Add DT examples for BCM63268, BCM3368 and BCM6362 - Add support for BCM3368 and BCM6362 PCI - Reduce stack frame usage - Use struct list_head lists - Support for CONFIG_PCI_DOMAINS_GENERIC - Make pcibios_set_cache_line_size an initcall - Inline pcibios_assign_all_busses - Split pci.c into pci.c & pci-legacy.c - Introduce CONFIG_PCI_DRIVERS_LEGACY - Support generic drivers CPC - Convert bare 'unsigned' to 'unsigned int' - Avoid lock when MIPS CM >= 3 is present GIC: - Delete unused file smp-gic.c mt7620: - Delete unnecessary assignment for the field "owner" from PCI BCM63xx: - Let clk_disable() return immediately if clk is NULL pm-cps: - Change FSB workaround to CPU blacklist - Update comments on barrier instructions - Use MIPS standard lightweight ordering barrier - Use MIPS standard completion barrier - Remove selection of sync types - Add MIPSr6 CPU support - Support CM3 changes to Coherence Enable Register SMP: - Wrap call to mips_cpc_lock_other in mips_cm_lock_other - Introduce mechanism for freeing and allocating IPIs cpuidle: - cpuidle-cps: Enable use with MIPSr6 CPUs. SEAD3: - Rewrite to use DT and generic kernel feature. USB: - host: ehci-sead3: Remove SEAD-3 EHCI code FBDEV: - cobalt_lcdfb: Drop SEAD3 support dt-bindings: - Document a binding for simple ASCII LCDs auxdisplay: - img-ascii-lcd: driver for simple ASCII LCD displays irqchip i8259: - i8259: Add domain before mapping parent irq - i8259: Allow platforms to override poll function - i8259: Remove unused i8259A_irq_pending Malta: - Rewrite to use DT of/platform: - Probe "isa" busses by default CM: - Print CM error reports upon bus errors Module: - Migrate exception table users off module.h and onto extable.h - Make various drivers explicitly non-modular: - Audit and remove any unnecessary uses of module.h mailmap: - Canonicalize to Qais' current email address. Documentation: - MIPS supports HAVE_REGS_AND_STACK_ACCESS_API Loongson1C: - Add CPU support for Loongson1C - Add board support - Add defconfig - Add RTC support for Loongson1C board All this except one Documentation fix has sat in linux-next and has survived Imagination's automated build test system" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (127 commits) Documentation: MIPS supports HAVE_REGS_AND_STACK_ACCESS_API MIPS: ptrace: Fix regs_return_value for kernel context MIPS: VDSO: Drop duplicated -I*/-E* aflags MIPS: Fix -mabi=64 build of vdso.lds MIPS: Enable hardened usercopy MIPS: generic: Convert SEAD-3 to a generic board MIPS: generic: Introduce generic DT-based board support MIPS: Support generating Flattened Image Trees (.itb) MIPS: Adjust MIPS64 CAC_BASE to reflect Config.K0 MIPS: Print CM error reports upon bus errors MIPS: Support per-device DMA coherence MIPS: dma-default: Don't check hw_coherentio if device is non-coherent MIPS: Sanitise coherentio semantics MIPS: PCI: Support generic drivers MIPS: PCI: Introduce CONFIG_PCI_DRIVERS_LEGACY MIPS: PCI: Split pci.c into pci.c & pci-legacy.c MIPS: PCI: Inline pcibios_assign_all_busses MIPS: PCI: Make pcibios_set_cache_line_size an initcall MIPS: PCI: Support for CONFIG_PCI_DOMAINS_GENERIC MIPS: PCI: Use struct list_head lists ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
Pull sound fixes from Takashi Iwai: "Just a few trivial small fixes" * tag 'sound-fix-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: line6: fix a crash in line6_hwdep_write() ALSA: seq: fix passing wrong pointer in function call of compatibility layer ALSA: hda - Fix a failure of micmute led when having multi adcs ALSA: line6: Fix POD X3 Live audio input
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull more misc uaccess and vfs updates from Al Viro: "The rest of the stuff from -next (more uaccess work) + assorted fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: score: traps: Add missing include file to fix build error fs/super.c: don't fool lockdep in freeze_super() and thaw_super() paths fs/super.c: fix race between freeze_super() and thaw_super() overlayfs: Fix setting IOP_XATTR flag iov_iter: kernel-doc import_iovec() and rw_copy_check_uvector() blackfin: no access_ok() for __copy_{to,from}_user() arm64: don't zero in __copy_from_user{,_inatomic} arm: don't zero in __copy_from_user_inatomic()/__copy_from_user() arc: don't leak bits of kernel stack into coredump alpha: get rid of tail-zeroing in __copy_user()
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git://git.samba.org/sfrench/cifs-2.6Linus Torvalds authored
Pull cifs fixes from Steve French: "Including: - nine bug fixes for stable. Some of these we found at the recent two weeks of SMB3 test events/plugfests. - significant improvements in reconnection (e.g. if server or network crashes) especially when mounted with "persistenthandles" or to server which advertises Continuous Availability on the share. - a new mount option "idsfromsid" which improves POSIX compatibility in some cases (when winbind not configured e.g.) by better (and faster) fetching uid/gid from acl (when "cifsacl" mount option is enabled). NB: we are almost complete work on "cifsacl" (querying mode/uid/gid from ACL) for SMB3, but SMB3 support for cifsacl is not included in this set. - improved handling for SMB3 "credits" (even if server is buggy) Still working on two sets of changes: - cifsacl enablement for SMB3 - cleanup of RFC1001 length calculation (so we can handle encryption and multichannel and RDMA) And a couple of new bugs were reported recently (unrelated to above) so will probably have another merge request next week" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: (21 commits) CIFS: Retrieve uid and gid from special sid if enabled CIFS: Add new mount option to set owner uid and gid from special sids in acl CIFS: Reset read oplock to NONE if we have mandatory locks after reopen CIFS: Fix persistent handles re-opening on reconnect SMB2: Separate RawNTLMSSP authentication from SMB2_sess_setup SMB2: Separate Kerberos authentication from SMB2_sess_setup Expose cifs module parameters in sysfs Cleanup missing frees on some ioctls Enable previous version support Do not send SMB3 SET_INFO request if nothing is changing SMB3: Add mount parameter to allow user to override max credits fs/cifs: reopen persistent handles on reconnect Clarify locking of cifs file and tcon structures and make more granular Fix regression which breaks DFS mounting fs/cifs: keep guid when assigning fid to fileinfo SMB3: GUIDs should be constructed as random but valid uuids Set previous session id correctly on SMB3 reconnect cifs: Limit the overall credit acquired Display number of credits available Add way to query creation time of file via cifs xattr ... -
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfsLinus Torvalds authored
Pull btrfs fixes from Chris Mason: "Some fixes from Omar and Dave Sterba for our new free space tree. This isn't heavily used yet, but as we move toward making it the new default we wanted to nail down an endian bug" * 'for-linus-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: btrfs: tests: uninline member definitions in free_space_extent btrfs: tests: constify free space extent specs Btrfs: expand free space tree sanity tests to catch endianness bug Btrfs: fix extent buffer bitmap tests on big-endian systems Btrfs: catch invalid free space trees Btrfs: fix mount -o clear_cache,space_cache=v2 Btrfs: fix free space tree bitmaps on big-endian systems
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Al Viro authored
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Guenter Roeck authored
score images fail to build as follows. arch/score/kernel/traps.c: In function 'show_stack': arch/score/kernel/traps.c:55:3: error: implicit declaration of function '__get_user' __get_user() is declared in asm/uaccess.h, which was previously included through asm/module.h. Cc: Al Viro <viro@zeniv.linux.org.uk> Fixes: 88dd4a74 ("score: separate extable.h, switch module.h to it") Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Oleg Nesterov authored
sb_wait_write()->percpu_rwsem_release() fools lockdep to avoid the false-positives. Now that xfs was fixed by Dave's commit dbad7c99 ("xfs: stop holding ILOCK over filldir callbacks") we can remove it and change freeze_super() and thaw_super() to run with s_writers.rw_sem locks held; we add two trivial helpers for that, lockdep_sb_freeze_release() and lockdep_sb_freeze_acquire(). xfstests-dev/check `grep -il freeze tests/*/???` does not trigger any warning from lockdep. Signed-off-by:
Oleg Nesterov <oleg@redhat.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfsLinus Torvalds authored
Pull overlayfs updates from Miklos Szeredi: "This update contains fixes to the "use mounter's permission to access underlying layers" area, and miscellaneous other fixes and cleanups. No new features this time" * 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: ovl: use vfs_get_link() vfs: add vfs_get_link() helper ovl: use generic_readlink ovl: explain error values when removing acl from workdir ovl: Fix info leak in ovl_lookup_temp() ovl: during copy up, switch to mounter's creds early ovl: lookup: do getxattr with mounter's permission ovl: copy_up_xattr(): use strnlen
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Oleg Nesterov authored
Change thaw_super() to check frozen != SB_FREEZE_COMPLETE rather than frozen == SB_UNFROZEN, otherwise it can race with freeze_super() which drops sb->s_umount after SB_FREEZE_WRITE to preserve the lock ordering. In this case thaw_super() will wrongly call s_op->unfreeze_fs() before it was actually frozen, and call sb_freeze_unlock() which leads to the unbalanced percpu_up_write(). Unfortunately lockdep can't detect this, so this triggers misc BUG_ON()'s in kernel/rcu/sync.c. Reported-and-tested-by:
Nikolay Borisov <kernel@kyup.com> Signed-off-by:
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Vivek Goyal authored
ovl_fill_super calls ovl_new_inode to create a root inode for the new superblock before initializing sb->s_xattr. This wrongly causes IOP_XATTR to be cleared in i_opflags of the new inode, causing SELinux to log the following message: SELinux: (dev overlay, type overlay) has no xattr support Fix this by initializing sb->s_xattr and similar fields before calling ovl_new_inode. Signed-off-by:
Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by:
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Vegard Nossum authored
Both import_iovec() and rw_copy_check_uvector() take an array (typically small and on-stack) which is used to hold an iovec array copy from userspace. This is to avoid an expensive memory allocation in the fast path (i.e. few iovec elements). The caller may have to check whether these functions actually used the provided buffer or allocated a new one -- but this differs between the too. Let's just add a kernel doc to clarify what the semantics are for each function. Signed-off-by:
Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by:
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- 14 Oct, 2016 4 commits
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Linus Torvalds authored
Merge tag 'linux-kselftest-4.9-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest updates from Shuah Khan: "This update consists of: - Fixes and improvements to existing tests - Moving code from Documentation to selftests, samples, and tools: * Moves dnotify_test, prctl, ptp, vDSO, ia64, watchdog, and networking tests from Documentation to selftests. * Moves mic/mpssd, misc-devices/mei, timers, watchdog, auxdisplay, and blackfin examples from Documentation to samples. * Moves accounting, laptops/dslm, and pcmcia/crc32hash tools from Documentation to tools. * Deletes BUILD_DOCSRC and its dependencies" * tag 'linux-kselftest-4.9-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (21 commits) selftests/futex: Check ANSI terminal color support Doc: update 00-INDEX files to reflect the runnable code move samples: move blackfin gptimers-example from Documentation tools: move pcmcia crc32hash tool from Documentation tools: move laptops dslm tool from Documentation tools: move accounting tool from Documentation samples: move auxdisplay example code from Documentation samples: move watchdog example code from Documentation samples: move timers example code from Documentation samples: move misc-devices/mei example code from Documentation samples: move mic/mpssd example code from Documentation selftests: Move networking/timestamping from Documentation selftests: move watchdog tests from Documentation/watchdog selftests: move ia64 tests from Documentation/ia64 selftests: move vDSO tests from Documentation/vDSO selftests: move ptp tests from Documentation/ptp selftests: move prctl tests from Documentation/prctl selftests: move dnotify_test from Documentation/filesystems selftests/timers: Add missing error code assignment before test selftests/zram: replace ZRAM_LZ4_COMPRESS ...
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git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuildLinus Torvalds authored
Pull misc kbuild changes from Michal Marek: "Just a few patches on the kbuild.git#misc branch this time: - New Coccinelle patch by Nicholas Mc Guire - Existing patch fixes by Julia Lawall - Minor comment fix by Markus Elfring" * 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: Coccinelle: flag conditions with no effect scripts/coccicheck: Update reference for the corresponding documentation Coccinelle: pm_runtime: ensure relevance of pm_runtime reports Coccinelle: limit memdup_user transformation to GFP_KERNEL case
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git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuildLinus Torvalds authored
Pull kbuild updates from Michal Marek: - EXPORT_SYMBOL for asm source by Al Viro. This does bring a regression, because genksyms no longer generates checksums for these symbols (CONFIG_MODVERSIONS). Nick Piggin is working on a patch to fix this. Plus, we are talking about functions like strcpy(), which rarely change prototypes. - Fixes for PPC fallout of the above by Stephen Rothwell and Nick Piggin - fixdep speedup by Alexey Dobriyan. - preparatory work by Nick Piggin to allow architectures to build with -ffunction-sections, -fdata-sections and --gc-sections - CONFIG_THIN_ARCHIVES support by Stephen Rothwell - fix for filenames with colons in the initramfs source by me. * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: (22 commits) initramfs: Escape colons in depfile ppc: there is no clear_pages to export powerpc/64: whitelist unresolved modversions CRCs kbuild: -ffunction-sections fix for archs with conflicting sections kbuild: add arch specific post-link Makefile kbuild: allow archs to select link dead code/data elimination kbuild: allow architectures to use thin archives instead of ld -r kbuild: Regenerate genksyms lexer kbuild: genksyms fix for typeof handling fixdep: faster CONFIG_ search ia64: move exports to definitions sparc32: debride memcpy.S a bit [sparc] unify 32bit and 64bit string.h sparc: move exports to definitions ppc: move exports to definitions arm: move exports to definitions s390: move exports to definitions m68k: move exports to definitions alpha: move exports to actual definitions x86: move exports to actual definitions ...
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git://git.lwn.net/linuxLinus Torvalds authored
Pull one more documentation update from Jonathan Corbet: "A single commit converting the mac80211 DocBook template over to Sphinx. Only 32 more to go..." * tag 'docs-4.9-2' of git://git.lwn.net/linux: docs-rst: sphinxify 802.11 documentation
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