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2020-06-02docs: filesystems: convert gfs2-glocks.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Adjust document and section titles; - Some whitespace fixes and new line breaks; - Add table markups; - Use notes markups; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
2020-06-01Merge tag 'docs-5.8' of git://git.lwn.net/linuxLinus Torvalds
Pull documentation updates from Jonathan Corbet: "A fair amount of stuff this time around, dominated by yet another massive set from Mauro toward the completion of the RST conversion. I *really* hope we are getting close to the end of this. Meanwhile, those patches reach pretty far afield to update document references around the tree; there should be no actual code changes there. There will be, alas, more of the usual trivial merge conflicts. Beyond that we have more translations, improvements to the sphinx scripting, a number of additions to the sysctl documentation, and lots of fixes" * tag 'docs-5.8' of git://git.lwn.net/linux: (130 commits) Documentation: fixes to the maintainer-entry-profile template zswap: docs/vm: Fix typo accept_threshold_percent in zswap.rst tracing: Fix events.rst section numbering docs: acpi: fix old http link and improve document format docs: filesystems: add info about efivars content Documentation: LSM: Correct the basic LSM description mailmap: change email for Ricardo Ribalda docs: sysctl/kernel: document unaligned controls Documentation: admin-guide: update bug-hunting.rst docs: sysctl/kernel: document ngroups_max nvdimm: fixes to maintainter-entry-profile Documentation/features: Correct RISC-V kprobes support entry Documentation/features: Refresh the arch support status files Revert "docs: sysctl/kernel: document ngroups_max" docs: move locking-specific documents to locking/ docs: move digsig docs to the security book docs: move the kref doc into the core-api book docs: add IRQ documentation at the core-api book docs: debugging-via-ohci1394.txt: add it to the core-api book docs: fix references for ipmi.rst file ...
2020-06-01Merge tag 'arm64-upstream' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 updates from Will Deacon: "A sizeable pile of arm64 updates for 5.8. Summary below, but the big two features are support for Branch Target Identification and Clang's Shadow Call stack. The latter is currently arm64-only, but the high-level parts are all in core code so it could easily be adopted by other architectures pending toolchain support Branch Target Identification (BTI): - Support for ARMv8.5-BTI in both user- and kernel-space. This allows branch targets to limit the types of branch from which they can be called and additionally prevents branching to arbitrary code, although kernel support requires a very recent toolchain. - Function annotation via SYM_FUNC_START() so that assembly functions are wrapped with the relevant "landing pad" instructions. - BPF and vDSO updates to use the new instructions. - Addition of a new HWCAP and exposure of BTI capability to userspace via ID register emulation, along with ELF loader support for the BTI feature in .note.gnu.property. - Non-critical fixes to CFI unwind annotations in the sigreturn trampoline. Shadow Call Stack (SCS): - Support for Clang's Shadow Call Stack feature, which reserves platform register x18 to point at a separate stack for each task that holds only return addresses. This protects function return control flow from buffer overruns on the main stack. - Save/restore of x18 across problematic boundaries (user-mode, hypervisor, EFI, suspend, etc). - Core support for SCS, should other architectures want to use it too. - SCS overflow checking on context-switch as part of the existing stack limit check if CONFIG_SCHED_STACK_END_CHECK=y. CPU feature detection: - Removed numerous "SANITY CHECK" errors when running on a system with mismatched AArch32 support at EL1. This is primarily a concern for KVM, which disabled support for 32-bit guests on such a system. - Addition of new ID registers and fields as the architecture has been extended. Perf and PMU drivers: - Minor fixes and cleanups to system PMU drivers. Hardware errata: - Unify KVM workarounds for VHE and nVHE configurations. - Sort vendor errata entries in Kconfig. Secure Monitor Call Calling Convention (SMCCC): - Update to the latest specification from Arm (v1.2). - Allow PSCI code to query the SMCCC version. Software Delegated Exception Interface (SDEI): - Unexport a bunch of unused symbols. - Minor fixes to handling of firmware data. Pointer authentication: - Add support for dumping the kernel PAC mask in vmcoreinfo so that the stack can be unwound by tools such as kdump. - Simplification of key initialisation during CPU bringup. BPF backend: - Improve immediate generation for logical and add/sub instructions. vDSO: - Minor fixes to the linker flags for consistency with other architectures and support for LLVM's unwinder. - Clean up logic to initialise and map the vDSO into userspace. ACPI: - Work around for an ambiguity in the IORT specification relating to the "num_ids" field. - Support _DMA method for all named components rather than only PCIe root complexes. - Minor other IORT-related fixes. Miscellaneous: - Initialise debug traps early for KGDB and fix KDB cacheflushing deadlock. - Minor tweaks to early boot state (documentation update, set TEXT_OFFSET to 0x0, increase alignment of PE/COFF sections). - Refactoring and cleanup" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (148 commits) KVM: arm64: Move __load_guest_stage2 to kvm_mmu.h KVM: arm64: Check advertised Stage-2 page size capability arm64/cpufeature: Add get_arm64_ftr_reg_nowarn() ACPI/IORT: Remove the unused __get_pci_rid() arm64/cpuinfo: Add ID_MMFR4_EL1 into the cpuinfo_arm64 context arm64/cpufeature: Add remaining feature bits in ID_AA64PFR1 register arm64/cpufeature: Add remaining feature bits in ID_AA64PFR0 register arm64/cpufeature: Add remaining feature bits in ID_AA64ISAR0 register arm64/cpufeature: Add remaining feature bits in ID_MMFR4 register arm64/cpufeature: Add remaining feature bits in ID_PFR0 register arm64/cpufeature: Introduce ID_MMFR5 CPU register arm64/cpufeature: Introduce ID_DFR1 CPU register arm64/cpufeature: Introduce ID_PFR2 CPU register arm64/cpufeature: Make doublelock a signed feature in ID_AA64DFR0 arm64/cpufeature: Drop TraceFilt feature exposure from ID_DFR0 register arm64/cpufeature: Add explicit ftr_id_isar0[] for ID_ISAR0 register arm64: mm: Add asid_gen_match() helper firmware: smccc: Fix missing prototype warning for arm_smccc_version_init arm64: vdso: Fix CFI directives in sigreturn trampoline arm64: vdso: Don't prefix sigreturn trampoline with a BTI C instruction ...
2020-05-28Documentation/dax: Update DAX enablement for ext4Ira Weiny
Update the document to reflect ext4 and xfs now behave the same. Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Ira Weiny <ira.weiny@intel.com> Link: https://lore.kernel.org/r/20200528150003.828793-10-ira.weiny@intel.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-05-28fs/ext4: Disallow verity if inode is DAXIra Weiny
Verity and DAX are incompatible. Changing the DAX mode due to a verity flag change is wrong without a corresponding address_space_operations update. Make the 2 options mutually exclusive by returning an error if DAX was set first. (Setting DAX is already disabled if Verity is set first.) Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Ira Weiny <ira.weiny@intel.com> Link: https://lore.kernel.org/r/20200528150003.828793-3-ira.weiny@intel.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-05-25docs: filesystems: add info about efivars contentFlavio Suligoi
When an EFI variable is reading from: /sys/firmware/efi/efivars (for example using "hexdump"), the first 4 bytes of the output are not the real EFI variable data, but the variable attributes (in little-endian format). Signed-off-by: Flavio Suligoi <f.suligoi@asem.it> Link: https://lore.kernel.org/r/20200519084128.12756-1-f.suligoi@asem.it Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-19xfs: call xfs_dinode_verify from xfs_inode_from_diskChristoph Hellwig
Keep the code dealing with the dinode together, and also ensure we verify the dinode in the owner change log recovery case as well. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-05-19fscrypt: add support for IV_INO_LBLK_32 policiesEric Biggers
The eMMC inline crypto standard will only specify 32 DUN bits (a.k.a. IV bits), unlike UFS's 64. IV_INO_LBLK_64 is therefore not applicable, but an encryption format which uses one key per policy and permits the moving of encrypted file contents (as f2fs's garbage collector requires) is still desirable. To support such hardware, add a new encryption format IV_INO_LBLK_32 that makes the best use of the 32 bits: the IV is set to 'SipHash-2-4(inode_number) + file_logical_block_number mod 2^32', where the SipHash key is derived from the fscrypt master key. We hash only the inode number and not also the block number, because we need to maintain contiguity of DUNs to merge bios. Unlike with IV_INO_LBLK_64, with this format IV reuse is possible; this is unavoidable given the size of the DUN. This means this format should only be used where the requirements of the first paragraph apply. However, the hash spreads out the IVs in the whole usable range, and the use of a keyed hash makes it difficult for an attacker to determine which files use which IVs. Besides the above differences, this flag works like IV_INO_LBLK_64 in that on ext4 it is only allowed if the stable_inodes feature has been enabled to prevent inode numbers and the filesystem UUID from changing. Link: https://lore.kernel.org/r/20200515204141.251098-1-ebiggers@kernel.org Reviewed-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Paul Crowley <paulcrowley@google.com> Signed-off-by: Eric Biggers <ebiggers@google.com>
2020-05-18fscrypt: support test_dummy_encryption=v2Eric Biggers
v1 encryption policies are deprecated in favor of v2, and some new features (e.g. encryption+casefolding) are only being added for v2. Therefore, the "test_dummy_encryption" mount option (which is used for encryption I/O testing with xfstests) needs to support v2 policies. To do this, extend its syntax to be "test_dummy_encryption=v1" or "test_dummy_encryption=v2". The existing "test_dummy_encryption" (no argument) also continues to be accepted, to specify the default setting -- currently v1, but the next patch changes it to v2. To cleanly support both v1 and v2 while also making it easy to support specifying other encryption settings in the future (say, accepting "$contents_mode:$filenames_mode:v2"), make ext4 and f2fs maintain a pointer to the dummy fscrypt_context rather than using mount flags. To avoid concurrency issues, don't allow test_dummy_encryption to be set or changed during a remount. (The former restriction is new, but xfstests doesn't run into it, so no one should notice.) Tested with 'gce-xfstests -c {ext4,f2fs}/encrypt -g auto'. On ext4, there are two regressions, both of which are test bugs: ext4/023 and ext4/028 fail because they set an xattr and expect it to be stored inline, but the increase in size of the fscrypt_context from 24 to 40 bytes causes this xattr to be spilled into an external block. Link: https://lore.kernel.org/r/20200512233251.118314-4-ebiggers@kernel.org Acked-by: Jaegeuk Kim <jaegeuk@kernel.org> Reviewed-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Eric Biggers <ebiggers@google.com>
2020-05-15docs: debugfs: Update struct debugfs_reg32 definitionRikard Falkeborn
Update the docs to match the implementation, both the definition of struct debugfs_regset32 and the definition of debugfs_print_regs32(). Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com> Link: https://lore.kernel.org/r/20200508212949.2867-1-rikard.falkeborn@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-13ovl: resolve more conflicting mount optionsAmir Goldstein
Similar to the way that a conflict between metacopy=on,redirect_dir=off is resolved, also resolve conflicts between nfs_export=on,index=off and nfs_export=on,metacopy=on. An explicit mount option wins over a default config value. Both explicit mount options result in an error. Without this change the xfstests group overlay/exportfs are skipped if metacopy is enabled by default. Reported-by: Chengguang Xu <cgxu519@mykernel.net> Signed-off-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2020-05-11f2fs: compress: support lzo-rle compress algorithmChao Yu
LZO-RLE extension (run length encoding) was introduced to improve performance of LZO algorithm in scenario of data contains many zeros, zram has changed to use this extended algorithm by default, this patch adds to support this algorithm extension, to enable this extension, it needs to enable F2FS_FS_LZO and F2FS_FS_LZORLE config, and specifies "compress_algorithm=lzo-rle" mountoption. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2020-05-08nfsd: clients don't need to break their own delegationsJ. Bruce Fields
We currently revoke read delegations on any write open or any operation that modifies file data or metadata (including rename, link, and unlink). But if the delegation in question is the only read delegation and is held by the client performing the operation, that's not really necessary. It's not always possible to prevent this in the NFSv4.0 case, because there's not always a way to determine which client an NFSv4.0 delegation came from. (In theory we could try to guess this from the transport layer, e.g., by assuming all traffic on a given TCP connection comes from the same client. But that's not really correct.) In the NFSv4.1 case the session layer always tells us the client. This patch should remove such self-conflicts in all cases where we can reliably determine the client from the compound. To do that we need to track "who" is performing a given (possibly lease-breaking) file operation. We're doing that by storing the information in the svc_rqst and using kthread_data() to map the current task back to a svc_rqst. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2020-05-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
Conflicts were all overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-05docs: filesystems: convert configfs.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Adjust document and section titles; - Use copyright symbol; - Some whitespace fixes and new line breaks; - Mark literal blocks as such; - Add it to filesystems/index.rst. Also, as this file is alone on its own dir, and it doesn't seem too likely that other documents will follow it, let's move it to the filesystems/ root documentation dir. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/c2424ec2ad4d735751434ff7f52144c44aa02d5a.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert xfs-self-describing-metadata.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Adjust document and section titles; - Some whitespace fixes and new line breaks; - Mark literal blocks as such; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/7c26b200e12cfc07b9bd379612452d845a8d1474.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert xfs-delayed-logging-design.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Adjust document and section titles; - Some whitespace fixes and new line breaks; - Mark literal blocks as such; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/2233c248f12e7b465cd27ee30a86f96eb632946a.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert sysfs-tagging.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Adjust document title; - Some whitespace fixes and new line breaks; - Mark literal blocks as such; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/45a01fa5edd5c6ee8fc0754fc74f7ef65a3e5581.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert sysfs-pci.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Adjust document title; - Some whitespace fixes and new line breaks; - Mark literal blocks as such; - Add table markups; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/2a9d307753c97d1a843341a2ef1993d43a407ded.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert spufs/spu_run.txt to ReSTMauro Carvalho Chehab
This file is at groff output format. Manually convert it to ReST format, trying to preserve a similar output after parsed. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/7d8ee1edf5ef0137009bc65ff0441826ce555895.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert spufs/spufs.txt to ReSTMauro Carvalho Chehab
This file is at groff output format. Manually convert it to ReST format, trying to preserve a similar output after parsed. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/9ca05fad12390931bc7da0fa2502d1a450a4b87f.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert spufs/spu_create.txt to ReSTMauro Carvalho Chehab
This file is at groff output format. Manually convert it to ReST format, trying to preserve a similar output after parsed. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/4d42e97d5560a79bd5dd443c592be04f9ae9a757.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: split spufs.txt into 3 separate filesMauro Carvalho Chehab
This file has manpages for 3 different things. As we'll be converting it to ReST, let's fist split it into their individual components. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/3753aa73524f4e1cbf0c19e34f7b322420e0b1c6.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert sharedsubtree.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Adjust document and section titles; - Some whitespace fixes and new line breaks; - Mark literal blocks as such; - Add table markups; - Add it to filesystems/index.rst Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/6692b8abc177130e9e53aace94117a2ad076cab5.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert seq_file.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Add a document title; - Adjust section titles; - Some whitespace fixes and new line breaks; - Mark literal blocks as such; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/f950a0a56178ee05872ae2a2711a04d7af8ebb24.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert quota.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Adjust document title; - Some whitespace fixes and new line breaks; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/10a707377475bb252f454af2b8f58a038527933f.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert mount_api.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Adjust document and section titles; - Some whitespace fixes and new line breaks; - Mark literal blocks as such; - Add table markups; - Add lists markups; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/32332c1659a28c22561cb5e64162c959856066b4.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert mandatory-locking.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Adjust document title; - Some whitespace fixes and new line breaks; - Use notes markups; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/aecd6259fe9f99b2c2b3440eab6a2b989125e00d.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert locks.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Adjust document and section titles; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/467b3f20e63d2640d22599b99229699b5fb79251.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert fuse-io.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Add a document title; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/88ec8025c1c5fc3ac5b65f1151c41ebcc696dc0e.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert files.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Adjust document title; - Some whitespace fixes and new line breaks; - Mark literal blocks as such; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/e31b0f6a7ee466a233dc7f9c73f53f07ebb07f0b.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert fiemap.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Some whitespace fixes and new line breaks; - Mark literal blocks as such; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/9182d49ffca7a0580e32ab24ecf5f8cc8d8924af.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert dnotify.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Add a document title; - Some whitespace fixes and new line breaks; - Add table markups; - Add it to filesystems/index.rst Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/b39d6430d1c28438e833f01cb4597eff78703c75.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert devpts.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Add a document title; - Some whitespace fixes and new line breaks; - Mark literal blocks as such; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/4ac8f3a7edd4d817acf0d173ead7ef74fe010c6c.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert coda.txt to ReSTMauro Carvalho Chehab
This document has its own style. It seems to be print output for the old matrixial printers where backspace were used to do double prints. For the conversion, I used several regex expressions to get rid of some weird stuff. The patch also does almost all possible conversions in order to get a nice output document, while keeping it readable/editable as is: - Add a SPDX header; - Add a document title; - Adjust document title; - Adjust section titles; - Some whitespace fixes and new line breaks; - Mark literal blocks as such; - Adjust list markups; - Mark some unumbered titles with bold font; - Use footnoote markups; - Add table markups; - Use notes markups; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/25c06c40c3d7b947a131c3be124ce0e93cc00ae3.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert automount-support.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Add a document title; - Adjust section titles; - Mark literal blocks as such; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/ba7e2f2bf9aa2c7096772f5e7e8e609cb5fce07c.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert cifs/cifsroot.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Adjust document title; - Some whitespace fixes and new line breaks; - Mark literal blocks as such; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/28de01ee52283287e4195cf736d7154f122d30d4.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: caching/backend-api.txt: convert it to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Adjust document and section titles; - Some whitespace fixes and new line breaks; - Mark literal blocks as such; - Add table markups; - Add it to filesystems/caching/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/5d0a61abaa87bfe913b9e2f321e74ef7af0f3dfc.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: caching/cachefiles.txt: convert to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Adjust document title; - Mark literal blocks as such; - Add table markups; - Comment out text ToC for html/pdf output; - Add lists markups; - Add it to filesystems/caching/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/eec0cfc268e8dca348f760224685100c9c2caba6.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: caching/operations.txt: convert it to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Adjust document and section titles; - Comment out text ToC for html/pdf output; - Mark literal blocks as such; - Add it to filesystems/caching/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/97e71cc598a4f61df484ebda3ec06b63530ceb62.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: caching/netfs-api.txt: convert it to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Adjust document and section titles; - Some whitespace fixes and new line breaks; - Mark literal blocks as such; - Add it to filesystems/caching/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/cfe4cb1bf8e1f0093d44c30801ec42e74721e543.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert caching/fscache.txt to ReST formatMauro Carvalho Chehab
- Add a SPDX header; - Adjust document and section titles; - Comment out text ToC for html/pdf output; - Some whitespace fixes and new line breaks; - Add table markups; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/e33ec382a53cf10ffcbd802f6de3f384159cddba.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05docs: filesystems: convert caching/object.txt to ReSTMauro Carvalho Chehab
- Add a SPDX header; - Adjust document and section titles; - Comment out text ToC for html/pdf output; - Some whitespace fixes and new line breaks; - Adjust the events list to make them look better for html output; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/49026a8ea7e714c2e0f003aa26b975b1025476b7.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-05-05Merge branch 'for-next/bti-user' into for-next/btiWill Deacon
Merge in user support for Branch Target Identification, which narrowly missed the cut for 5.7 after a late ABI concern. * for-next/bti-user: arm64: bti: Document behaviour for dynamically linked binaries arm64: elf: Fix allnoconfig kernel build with !ARCH_USE_GNU_PROPERTY arm64: BTI: Add Kconfig entry for userspace BTI mm: smaps: Report arm64 guarded pages in smaps arm64: mm: Display guarded pages in ptdump KVM: arm64: BTI: Reset BTYPE when skipping emulated instructions arm64: BTI: Reset BTYPE when skipping emulated instructions arm64: traps: Shuffle code to eliminate forward declarations arm64: unify native/compat instruction skipping arm64: BTI: Decode BYTPE bits when printing PSTATE arm64: elf: Enable BTI at exec based on ELF program properties elf: Allow arch to tweak initial mmap prot flags arm64: Basic Branch Target Identification support ELF: Add ELF program property parsing support ELF: UAPI and Kconfig additions for ELF program properties
2020-05-04Documentation/dax: Update Usage sectionIra Weiny
Update the Usage section to reflect the new individual dax selection functionality. Signed-off-by: Ira Weiny <ira.weiny@intel.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-04-30docs: networking: convert rxrpc.txt to ReSTMauro Carvalho Chehab
- add SPDX header; - adjust title markup; - use autonumbered list markups; - mark code blocks and literals as such; - mark tables as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-28docs: orangefs: fix pvfs2tab literal blockStephen Kitt
Following a merge fix-up, the literal block is introduced too early; this patch merges the localhost mention with the introduction, fixing Documentation/filesystems/orangefs.rst:124: WARNING: Literal block expected; none found. Signed-off-by: Stephen Kitt <steve@sk2.org> Link: https://lore.kernel.org/r/20200424153515.134500-1-steve@sk2.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-28Update the documentation referencing Plan 9 from User Space.Juan Manuel Méndez Rey
The page originally referenced to checkout Plan9 application and libraries have been missing for quite some time and the development is carried out in github and documented on this new site. Signed-off-by: Juan Manuel Méndez Rey <vejeta@gmail.com> Link: https://lore.kernel.org/r/20200426015250.GA35090@camelot Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-22proc: use human-readable values for hidepidAlexey Gladkov
The hidepid parameter values are becoming more and more and it becomes difficult to remember what each new magic number means. Backward compatibility is preserved since it is possible to specify numerical value for the hidepid parameter. This does not break the fsconfig since it is not possible to specify a numerical value through it. All numeric values are converted to a string. The type FSCONFIG_SET_BINARY cannot be used to indicate a numerical value. Selftest has been added to verify this behavior. Suggested-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Alexey Gladkov <gladkov.alexey@gmail.com> Reviewed-by: Alexey Dobriyan <adobriyan@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2020-04-22docs: proc: add documentation for "hidepid=4" and "subset=pid" options and ↵Alexey Gladkov
new mount behavior Signed-off-by: Alexey Gladkov <gladkov.alexey@gmail.com> Reviewed-by: Alexey Dobriyan <adobriyan@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>