mirror of https://gitee.com/openkylin/linux.git
1896 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Linus Torvalds
|
44fea37378 |
overlayfs fixes for 5.8-rc6
-----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQSQHSd0lITzzeNWNm3h3BK/laaZPAUCXxGF+QAKCRDh3BK/laaZ PCHnAQCqNxcxncKMebpJ2hNIEPuSvUPRA4+iOOnc+9HTZ4A09wD/d/8ryybORTZN IHq2PpQUtuGgASv6GrptJSmpDvG6RA0= =lOD9 -----END PGP SIGNATURE----- Merge tag 'ovl-fixes-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs into master Pull overlayfs fixes from Miklos Szeredi: - fix a regression introduced in v4.20 in handling a regenerated squashfs lower layer - two regression fixes for this cycle, one of which is Oops inducing - miscellaneous issues * tag 'ovl-fixes-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: ovl: fix lookup of indexed hardlinks with metacopy ovl: fix unneeded call to ovl_change_flags() ovl: fix mount option checks for nfs_export with no upperdir ovl: force read-only sb on failure to create index dir ovl: fix regression with re-formatted lower squashfs ovl: fix oops in ovl_indexdir_cleanup() with nfs_export=on ovl: relax WARN_ON() when decoding lower directory file handle ovl: remove not used argument in ovl_check_origin ovl: change ovl_copy_up_flags static ovl: inode reference leak in ovl_is_inuse true case. |
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Amir Goldstein
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f0e1266ed2 |
ovl: fix mount option checks for nfs_export with no upperdir
Without upperdir mount option, there is no index dir and the dependency checks nfs_export => index for mount options parsing are incorrect. Allow the combination nfs_export=on,index=off with no upperdir and move the check for dependency redirect_dir=nofollow for non-upper mount case to mount options parsing. Signed-off-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> |
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Linus Torvalds
|
3be20b6fc1 |
This is the second round of ext4 commits for 5.8 merge window. It
includes the per-inode DAX support, which was dependant on the DAX
infrastructure which came in via the XFS tree, and a number of
regression and bug fixes; most notably the "BUG: using
smp_processor_id() in preemptible code in ext4_mb_new_blocks" reported
by syzkaller.
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Merge tag 'ext4-for-linus-5.8-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull more ext4 updates from Ted Ts'o:
"This is the second round of ext4 commits for 5.8 merge window [1].
It includes the per-inode DAX support, which was dependant on the DAX
infrastructure which came in via the XFS tree, and a number of
regression and bug fixes; most notably the "BUG: using
smp_processor_id() in preemptible code in ext4_mb_new_blocks" reported
by syzkaller"
[1] The pull request actually came in 15 minutes after I had tagged the
rc1 release. Tssk, tssk, late.. - Linus
* tag 'ext4-for-linus-5.8-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4, jbd2: ensure panic by fix a race between jbd2 abort and ext4 error handlers
ext4: support xattr gnu.* namespace for the Hurd
ext4: mballoc: Use this_cpu_read instead of this_cpu_ptr
ext4: avoid utf8_strncasecmp() with unstable name
ext4: stop overwrite the errcode in ext4_setup_super
ext4: fix partial cluster initialization when splitting extent
ext4: avoid race conditions when remounting with options that change dax
Documentation/dax: Update DAX enablement for ext4
fs/ext4: Introduce DAX inode flag
fs/ext4: Remove jflag variable
fs/ext4: Make DAX mount option a tri-state
fs/ext4: Only change S_DAX on inode load
fs/ext4: Update ext4_should_use_dax()
fs/ext4: Change EXT4_MOUNT_DAX to EXT4_MOUNT_DAX_ALWAYS
fs/ext4: Disallow verity if inode is DAX
fs/ext4: Narrow scope of DAX check in setflags
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Linus Torvalds
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c742b63473 |
Highlights:
- Keep nfsd clients from unnecessarily breaking their own delegations: Note this requires a small kthreadd addition, discussed at: https://lore.kernel.org/r/1588348912-24781-1-git-send-email-bfields@redhat.com The result is Tejun Heo's suggestion, and he was OK with this going through my tree. - Patch nfsd/clients/ to display filenames, and to fix byte-order when displaying stateid's. - fix a module loading/unloading bug, from Neil Brown. - A big series from Chuck Lever with RPC/RDMA and tracing improvements, and lay some groundwork for RPC-over-TLS. Note Stephen Rothwell spotted two conflicts in linux-next. Both should be straightforward: include/trace/events/sunrpc.h https://lore.kernel.org/r/20200529105917.50dfc40f@canb.auug.org.au net/sunrpc/svcsock.c https://lore.kernel.org/r/20200529131955.26c421db@canb.auug.org.au -----BEGIN PGP SIGNATURE----- iQJJBAABCAAzFiEEYtFWavXG9hZotryuJ5vNeUKO4b4FAl7iRYwVHGJmaWVsZHNA ZmllbGRzZXMub3JnAAoJECebzXlCjuG+yx8QALIfyz/ziPgjGBnNJGCW8BjWHz7+ rGI+1SP2EUpgJ0fGJc9MpGyYTa5T3pTgsENnIRtegyZDISg2OQ5GfifpkTz4U7vg QbWRihs/W9EhltVYhKvtLASAuSAJ8ETbDfLXVb2ncY7iO6JNvb22xwsgKZILmzm1 uG4qSszmBZzpMUUy51kKJYJZ3ysP+v14qOnyOXEoeEMuJYNK9FkQ9bSPZ6wTJNOn hvZBMbU7LzRyVIvp358mFHY+vwq5qBNkJfVrZBkURGn4OxWPbWDXzqOi0Zs1oBjA L+QODIbTLGkopu/rD0r1b872PDtket7p5zsD8MreeI1vJOlt3xwqdCGlicIeNATI b0RG7sqh+pNv0mvwLxSNTf3rO0EKW6tUySqCnQZUAXFGRH0nYM2TWze4HUr2zfWT EgRMwxHY/AZUStZBuCIHPJ6inWnKuxSUELMf2a9JHO1BJc/yClRgmwJGdthVwb9u GP6F3/maFu+9YOO6iROMsqtxDA+q5vch5IBzevNOOBDEQDKqENmogR/knl9DmAhF sr+FOa3O0u6S4tgXw/TU97JS/h1L2Hu6QVEwU2iVzWtlUUOFVMZQODJTB6Lts4Ka gKzYXWvCHN+LyETsN6q7uHFg9mtO7xO5vrrIgo72SuVCscDw/8iHkoOOFLief+GE O0fR0IYjW8U1Rkn2 =YEf0 -----END PGP SIGNATURE----- Merge tag 'nfsd-5.8' of git://linux-nfs.org/~bfields/linux Pull nfsd updates from Bruce Fields: "Highlights: - Keep nfsd clients from unnecessarily breaking their own delegations. Note this requires a small kthreadd addition. The result is Tejun Heo's suggestion (see link), and he was OK with this going through my tree. - Patch nfsd/clients/ to display filenames, and to fix byte-order when displaying stateid's. - fix a module loading/unloading bug, from Neil Brown. - A big series from Chuck Lever with RPC/RDMA and tracing improvements, and lay some groundwork for RPC-over-TLS" Link: https://lore.kernel.org/r/1588348912-24781-1-git-send-email-bfields@redhat.com * tag 'nfsd-5.8' of git://linux-nfs.org/~bfields/linux: (49 commits) sunrpc: use kmemdup_nul() in gssp_stringify() nfsd: safer handling of corrupted c_type nfsd4: make drc_slab global, not per-net SUNRPC: Remove unreachable error condition in rpcb_getport_async() nfsd: Fix svc_xprt refcnt leak when setup callback client failed sunrpc: clean up properly in gss_mech_unregister() sunrpc: svcauth_gss_register_pseudoflavor must reject duplicate registrations. sunrpc: check that domain table is empty at module unload. NFSD: Fix improperly-formatted Doxygen comments NFSD: Squash an annoying compiler warning SUNRPC: Clean up request deferral tracepoints NFSD: Add tracepoints for monitoring NFSD callbacks NFSD: Add tracepoints to the NFSD state management code NFSD: Add tracepoints to NFSD's duplicate reply cache SUNRPC: svc_show_status() macro should have enum definitions SUNRPC: Restructure svc_udp_recvfrom() SUNRPC: Refactor svc_recvfrom() SUNRPC: Clean up svc_release_skb() functions SUNRPC: Refactor recvfrom path dealing with incomplete TCP receives SUNRPC: Replace dprintk() call sites in TCP receive path ... |
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Theodore Ts'o
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68cd44920d |
Enable ext4 support for per-file/directory dax operations
This adds the same per-file/per-directory DAX support for ext4 as was done for xfs, now that we finally have consensus over what the interface should be. |
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Linus Torvalds
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6d62c5b211 |
A handful of late-arriving docs fixes, along with a patch changing a lot of
HTTP links to HTTPS that had to be yanked and redone before the first
pull.
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Merge tag 'docs-5.8-2' of git://git.lwn.net/linux
Pull more documentation updates from Jonathan Corbet:
"A handful of late-arriving docs fixes, along with a patch changing a
lot of HTTP links to HTTPS that had to be yanked and redone before the
first pull"
* tag 'docs-5.8-2' of git://git.lwn.net/linux:
docs/memory-barriers.txt/kokr: smp_mb__{before,after}_atomic(): update Documentation
Documentation: devres: add missing entry for devm_platform_get_and_ioremap_resource()
Replace HTTP links with HTTPS ones: documentation
docs: it_IT: address invalid reference warnings
doc: zh_CN: use doc reference to resolve undefined label warning
docs: Update the location of the LF NDA program
docs: dev-tools: coccinelle: underlines
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Linus Torvalds
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5b14671be5 |
fuse update for 5.8
-----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQSQHSd0lITzzeNWNm3h3BK/laaZPAUCXt/0GAAKCRDh3BK/laaZ PIJjAP48TurDqomsQMBLiOsSUy0YIhd5QC/G5MYLKSBojXoR+gD+KfqXhVIDz0En OI+K4674cNhf4CXNzUedU3qSOaJLfAU= =PqbB -----END PGP SIGNATURE----- Merge tag 'fuse-update-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse Pull fuse updates from Miklos Szeredi: - Fix a rare deadlock in virtiofs - Fix st_blocks in writeback cache mode - Fix wrong checks in splice move causing spurious warnings - Fix a race between a GETATTR request and a FUSE_NOTIFY_INVAL_INODE notification - Use rb-tree instead of linear search for pages currently under writeout by userspace - Fix copy_file_range() inconsistencies * tag 'fuse-update-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: fuse: copy_file_range should truncate cache fuse: fix copy_file_range cache issues fuse: optimize writepages search fuse: update attr_version counter on fuse_notify_inval_inode() fuse: don't check refcount after stealing page fuse: fix weird page warning fuse: use dump_page virtiofs: do not use fuse_fill_super_common() for device installation fuse: always allow query of st_dev fuse: always flush dirty data on close(2) fuse: invalidate inode attr in writeback cache mode fuse: Update stale comment in queue_interrupt() fuse: BUG_ON correction in fuse_dev_splice_write() virtiofs: Add mount option and atime behavior to the doc virtiofs: schedule blocking async replies in separate worker |
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Linus Torvalds
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52435c86bf |
overlayfs update for 5.8
-----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQSQHSd0lITzzeNWNm3h3BK/laaZPAUCXt9klAAKCRDh3BK/laaZ PBeeAP9GRI0yajPzBzz2ZK9KkDc6A7wPiaAec+86Q+c02VncVwEAvq5Pi4um5RTZ 7SVv56ggKO3Cqx779zVyZTRYDs3+YA4= =bpKI -----END PGP SIGNATURE----- Merge tag 'ovl-update-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs Pull overlayfs updates from Miklos Szeredi: "Fixes: - Resolve mount option conflicts consistently - Sync before remount R/O - Fix file handle encoding corner cases - Fix metacopy related issues - Fix an unintialized return value - Add missing permission checks for underlying layers Optimizations: - Allow multipe whiteouts to share an inode - Optimize small writes by inheriting SB_NOSEC from upper layer - Do not call ->syncfs() multiple times for sync(2) - Do not cache negative lookups on upper layer - Make private internal mounts longterm" * tag 'ovl-update-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: (27 commits) ovl: remove unnecessary lock check ovl: make oip->index bool ovl: only pass ->ki_flags to ovl_iocb_to_rwf() ovl: make private mounts longterm ovl: get rid of redundant members in struct ovl_fs ovl: add accessor for ofs->upper_mnt ovl: initialize error in ovl_copy_xattr ovl: drop negative dentry in upper layer ovl: check permission to open real file ovl: call secutiry hook in ovl_real_ioctl() ovl: verify permissions in ovl_path_open() ovl: switch to mounter creds in readdir ovl: pass correct flags for opening real directory ovl: fix redirect traversal on metacopy dentries ovl: initialize OVL_UPPERDATA in ovl_lookup() ovl: use only uppermetacopy state in ovl_lookup() ovl: simplify setting of origin for index lookup ovl: fix out of bounds access warning in ovl_check_fb_len() ovl: return required buffer size for file handles ovl: sync dirty data when remounting to ro mode ... |
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Linus Torvalds
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42612e7763 |
f2fs-for-5.8-rc1
In this round, we've added some knobs to enhance compression feature and harden testing environment. In addition, we've fixed several bugs reported from Android devices such as long discarding latency, device hanging during quota_sync, etc. Enhancement: - support lzo-rle algorithm - add two ioctls to release and reserve blocks for compression - support partial truncation/fiemap on compressed file - introduce sysfs entries to attach IO flags explicitly - add iostat trace point along with read io stat Bug fix: - fix long discard latency - flush quota data by f2fs_quota_sync correctly - fix to recover parent inode number for power-cut recovery - fix lz4/zstd output buffer budget - parse checkpoint mount option correctly - avoid inifinite loop to wait for flushing node/meta pages - manage discard space correctly And some refactoring and clean up patches were added. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE00UqedjCtOrGVvQiQBSofoJIUNIFAl7fojgACgkQQBSofoJI UNKaZQ//Rd6r7Z25SJkAoy+y/m6QDaKg4Ap1wR6+QmirR7HNxtpr3dXSVvmj4Xhu ZDJ3LHmerFiwR/X4zFPud+PAoBe3gJa2k7GT8q0g4YkgLy0hfX9PXt0t3I9F8vlk 8m34j+hQaL9/3FBK4/PSG541vR/UUnwvu6t2pJMnz7rgnLej5I6yOIaoaihz7m+i k0ofK5ckuTNcZReAZ2tCIehQku7tDOBLdS5KxvBZBgRh0i5iSXXIa4ddvaMJdT/M WcjTZ6N8bFu0hCZ5hz9dyGGYo1XchQosLdLGhcEugsyxNp9Yuftyf5/Ie1wJNiEl ZsoRc15X7wfRPKKMMyDFljzPBPFiHr78p30uJ34bcYCu0j0CYi+gbKQztmEMZ2dy 9M+sDG3jd5R7ACXrwS2ElSEDyLBnTaxbeSdCpErGjn/U19TLllbzhnMA9KR9elDI pEWgRc7DPmPbRZaStXMxIamf7pbmUSm0akAYbzGFvMHcSx4MXuQFICGK9t/mhSDm sO2b1Ir39yk65sVNdjFsnqDsi6jTPgrLSe3FY4eMhkn15OSiVGhcz7ddQMD7Fbuq WLpHFqER650I28i0EXh8bxzjkrj+aJQKhGcVbmwVS33MtKVfBdh4GfQMvS6MbeOM MsZ10E7Dr9ildKxqHP5SgLlggkl512lpj3+d6j0mUSSSUP2jtUw= =MiEC -----END PGP SIGNATURE----- Merge tag 'f2fs-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs Pull f2fs updates from Jaegeuk Kim: "In this round, we've added some knobs to enhance compression feature and harden testing environment. In addition, we've fixed several bugs reported from Android devices such as long discarding latency, device hanging during quota_sync, etc. Enhancements: - support lzo-rle algorithm - add two ioctls to release and reserve blocks for compression - support partial truncation/fiemap on compressed file - introduce sysfs entries to attach IO flags explicitly - add iostat trace point along with read io stat Bug fixes: - fix long discard latency - flush quota data by f2fs_quota_sync correctly - fix to recover parent inode number for power-cut recovery - fix lz4/zstd output buffer budget - parse checkpoint mount option correctly - avoid inifinite loop to wait for flushing node/meta pages - manage discard space correctly And some refactoring and clean up patches were added" * tag 'f2fs-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (51 commits) f2fs: attach IO flags to the missing cases f2fs: add node_io_flag for bio flags likewise data_io_flag f2fs: remove unused parameter of f2fs_put_rpages_mapping() f2fs: handle readonly filesystem in f2fs_ioc_shutdown() f2fs: avoid utf8_strncasecmp() with unstable name f2fs: don't return vmalloc() memory from f2fs_kmalloc() f2fs: fix retry logic in f2fs_write_cache_pages() f2fs: fix wrong discard space f2fs: compress: don't compress any datas after cp stop f2fs: remove unneeded return value of __insert_discard_tree() f2fs: fix wrong value of tracepoint parameter f2fs: protect new segment allocation in expand_inode_data f2fs: code cleanup by removing ifdef macro surrounding f2fs: avoid inifinite loop to wait for flushing node pages at cp_error f2fs: flush dirty meta pages when flushing them f2fs: fix checkpoint=disable:%u%% f2fs: compress: fix zstd data corruption f2fs: add compressed/gc data read IO stat f2fs: fix potential use-after-free issue f2fs: compress: don't handle non-compressed data in workqueue ... |
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Michel Lespinasse
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c1e8d7c6a7 |
mmap locking API: convert mmap_sem comments
Convert comments that reference mmap_sem to reference mmap_lock instead. [akpm@linux-foundation.org: fix up linux-next leftovers] [akpm@linux-foundation.org: s/lockaphore/lock/, per Vlastimil] [akpm@linux-foundation.org: more linux-next fixups, per Michel] Signed-off-by: Michel Lespinasse <walken@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com> Cc: Davidlohr Bueso <dbueso@suse.de> Cc: David Rientjes <rientjes@google.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Jerome Glisse <jglisse@redhat.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Laurent Dufour <ldufour@linux.ibm.com> Cc: Liam Howlett <Liam.Howlett@oracle.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ying Han <yinghan@google.com> Link: http://lkml.kernel.org/r/20200520052908.204642-13-walken@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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ca687877e0 |
Changes in gfs2:
- An iopen glock locking scheme rework that speeds up deletes of inodes accessed from multiple nodes. - Various bug fixes and debugging improvements. - Convert gfs2-glocks.txt to ReST. -----BEGIN PGP SIGNATURE----- iQJIBAABCAAyFiEEJZs3krPW0xkhLMTc1b+f6wMTZToFAl7eYjMUHGFncnVlbmJh QHJlZGhhdC5jb20ACgkQ1b+f6wMTZTr/9g//cJ6jgiD/+qzh0VzougVksVZIduAl RMB+kldOjBS2ORbyYM87Jm1tdyakgZuFO91XlSwChWRdC3Y2mqdaJIEE/kATqfY9 7Frlw++SyFKLvIf04kDYGk2hXX+umXXYFfrIiKb0tzDSGkPRaARUb3RM4TRvlSDP /U0JlYA/4aXMUge+VpYsbpSGeqHNfEzmcmCyPXGmZYyh1MZ/RocMZFYEsP9NH82J l07fxowUd10LJPEmBajzjD2NmEvjdvF4gBCOfJVNIfOzCj0CwXL3vmtu1SUNOKr+ em266EWZF89eOcvfdtE6xF0w81oCAK43wYRjIODSgI9JCLXGiOYmlWZVwZoqu5iy 2GQDhj/taq3ObuVqjR5n6GYuqMoJ+D0LSD13qccDALq/Bdy4lq9TMLSdDbkrVIM/ 8BVn0nI5MzUlTV3mq6uxhU0HqtYDwUEiHWURWw6bYRug5OvQy3nbg/XZptYlnD87 XQccE4ErjlgSHLiYx1YckFz/GG6ytrRAKl9bGMkZ0u2+XmDsH+iJJgLcaXCPUP9h /hhYagKI55UBDer7we4tppbu+gnJrg3PXlgImf53iMc7ia0KQHd+TfSIFkGPuydI aEKKhIQzje23JayMbPRnwPbNlw9zU1loPi7hPS3rCpDY+w8oawpFyIieEOcxJyEt pYkOt4BQi9LvpGc= =PsCY -----END PGP SIGNATURE----- Merge tag 'gfs2-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2 Pull gfs2 updates from Andreas Gruenbacher: - An iopen glock locking scheme rework that speeds up deletes of inodes accessed from multiple nodes - Various bug fixes and debugging improvements - Convert gfs2-glocks.txt to ReST * tag 'gfs2-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: gfs2: fix use-after-free on transaction ail lists gfs2: new slab for transactions gfs2: initialize transaction tr_ailX_lists earlier gfs2: Smarter iopen glock waiting gfs2: Wake up when setting GLF_DEMOTE gfs2: Check inode generation number in delete_work_func gfs2: Move inode generation number check into gfs2_inode_lookup gfs2: Minor gfs2_lookup_by_inum cleanup gfs2: Try harder to delete inodes locally gfs2: Give up the iopen glock on contention gfs2: Turn gl_delete into a delayed work gfs2: Keep track of deleted inode generations in LVBs gfs2: Allow ASPACE glocks to also have an lvb gfs2: instrumentation wrt log_flush stuck gfs2: introduce new gfs2_glock_assert_withdraw gfs2: print mapping->nrpages in glock dump for address space glocks gfs2: Only do glock put in gfs2_create_inode for free inodes gfs2: Allow lock_nolock mount to specify jid=X gfs2: Don't ignore inode write errors during inode_go_sync docs: filesystems: convert gfs2-glocks.txt to ReST |
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Alexander A. Klimov
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93431e0607 |
Replace HTTP links with HTTPS ones: documentation
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.
Deterministic algorithm:
For each file:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200526060544.25127-1-grandmaster@al2klimov.de
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Linus Torvalds
|
0b166a57e6 |
A lot of bug fixes and cleanups for ext4, including:
* Fix performance problems found in dioread_nolock now that it is the
default, caused by transaction leaks.
* Clean up fiemap handling in ext4
* Clean up and refactor multiple block allocator (mballoc) code
* Fix a problem with mballoc with a smaller file systems running out
of blocks because they couldn't properly use blocks that had been
reserved by inode preallocation.
* Fixed a race in ext4_sync_parent() versus rename()
* Simplify the error handling in the extent manipulation code
* Make sure all metadata I/O errors are felected to ext4_ext_dirty()'s and
ext4_make_inode_dirty()'s callers.
* Avoid passing an error pointer to brelse in ext4_xattr_set()
* Fix race which could result to freeing an inode on the dirty last
in data=journal mode.
* Fix refcount handling if ext4_iget() fails
* Fix a crash in generic/019 caused by a corrupted extent node
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"A lot of bug fixes and cleanups for ext4, including:
- Fix performance problems found in dioread_nolock now that it is the
default, caused by transaction leaks.
- Clean up fiemap handling in ext4
- Clean up and refactor multiple block allocator (mballoc) code
- Fix a problem with mballoc with a smaller file systems running out
of blocks because they couldn't properly use blocks that had been
reserved by inode preallocation.
- Fixed a race in ext4_sync_parent() versus rename()
- Simplify the error handling in the extent manipulation code
- Make sure all metadata I/O errors are felected to
ext4_ext_dirty()'s and ext4_make_inode_dirty()'s callers.
- Avoid passing an error pointer to brelse in ext4_xattr_set()
- Fix race which could result to freeing an inode on the dirty last
in data=journal mode.
- Fix refcount handling if ext4_iget() fails
- Fix a crash in generic/019 caused by a corrupted extent node"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (58 commits)
ext4: avoid unnecessary transaction starts during writeback
ext4: don't block for O_DIRECT if IOCB_NOWAIT is set
ext4: remove the access_ok() check in ext4_ioctl_get_es_cache
fs: remove the access_ok() check in ioctl_fiemap
fs: handle FIEMAP_FLAG_SYNC in fiemap_prep
fs: move fiemap range validation into the file systems instances
iomap: fix the iomap_fiemap prototype
fs: move the fiemap definitions out of fs.h
fs: mark __generic_block_fiemap static
ext4: remove the call to fiemap_check_flags in ext4_fiemap
ext4: split _ext4_fiemap
ext4: fix fiemap size checks for bitmap files
ext4: fix EXT4_MAX_LOGICAL_BLOCK macro
add comment for ext4_dir_entry_2 file_type member
jbd2: avoid leaking transaction credits when unreserving handle
ext4: drop ext4_journal_free_reserved()
ext4: mballoc: use lock for checking free blocks while retrying
ext4: mballoc: refactor ext4_mb_good_group()
ext4: mballoc: introduce pcpu seqcnt for freeing PA to improve ENOSPC handling
ext4: mballoc: refactor ext4_mb_discard_preallocations()
...
|
|
|
Linus Torvalds
|
9ff7258575 |
Merge branch 'proc-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull proc updates from Eric Biederman: "This has four sets of changes: - modernize proc to support multiple private instances - ensure we see the exit of each process tid exactly - remove has_group_leader_pid - use pids not tasks in posix-cpu-timers lookup Alexey updated proc so each mount of proc uses a new superblock. This allows people to actually use mount options with proc with no fear of messing up another mount of proc. Given the kernel's internal mounts of proc for things like uml this was a real problem, and resulted in Android's hidepid mount options being ignored and introducing security issues. The rest of the changes are small cleanups and fixes that came out of my work to allow this change to proc. In essence it is swapping the pids in de_thread during exec which removes a special case the code had to handle. Then updating the code to stop handling that special case" * 'proc-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: proc: proc_pid_ns takes super_block as an argument remove the no longer needed pid_alive() check in __task_pid_nr_ns() posix-cpu-timers: Replace __get_task_for_clock with pid_for_clock posix-cpu-timers: Replace cpu_timer_pid_type with clock_pid_type posix-cpu-timers: Extend rcu_read_lock removing task_struct references signal: Remove has_group_leader_pid exec: Remove BUG_ON(has_group_leader_pid) posix-cpu-timer: Unify the now redundant code in lookup_task posix-cpu-timer: Tidy up group_leader logic in lookup_task proc: Ensure we see the exit of each process tid exactly once rculist: Add hlists_swap_heads_rcu proc: Use PIDTYPE_TGID in next_tgid Use proc_pid_ns() to get pid_namespace from the proc superblock proc: use named enums for better readability proc: use human-readable values for hidepid docs: proc: add documentation for "hidepid=4" and "subset=pid" options and new mount behavior proc: add option to mount only a pids subset proc: instantiate only pids that we can ptrace on 'hidepid=4' mount option proc: allow to mount many instances of proc in one pid namespace proc: rename struct proc_fs_info to proc_fs_opts |
|
|
Miklos Szeredi
|
df820f8de4 |
ovl: make private mounts longterm
Overlayfs is using clone_private_mount() to create internal mounts for underlying layers. These are used for operations requiring a path, such as dentry_open(). Since these private mounts are not in any namespace they are treated as short term, "detached" mounts and mntput() involves taking the global mount_lock, which can result in serious cacheline pingpong. Make these private mounts longterm instead, which trade the penalty on mntput() for a slightly longer shutdown time due to an added RCU grace period when putting these mounts. Introduce a new helper kern_unmount_many() that can take care of multiple longterm mounts with a single RCU grace period. Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> |
|
|
Christoph Hellwig
|
cddf8a2c4a |
fs: move fiemap range validation into the file systems instances
Replace fiemap_check_flags with a fiemap_prep helper that also takes the inode and mapped range, and performs the sanity check and truncation previously done in fiemap_check_range. This way the validation is inside the file system itself and thus properly works for the stacked overlayfs case as well. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Link: https://lore.kernel.org/r/20200523073016.2944131-7-hch@lst.de Signed-off-by: Theodore Ts'o <tytso@mit.edu> |
|
|
Linus Torvalds
|
cb8e59cc87 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller:
1) Allow setting bluetooth L2CAP modes via socket option, from Luiz
Augusto von Dentz.
2) Add GSO partial support to igc, from Sasha Neftin.
3) Several cleanups and improvements to r8169 from Heiner Kallweit.
4) Add IF_OPER_TESTING link state and use it when ethtool triggers a
device self-test. From Andrew Lunn.
5) Start moving away from custom driver versions, use the globally
defined kernel version instead, from Leon Romanovsky.
6) Support GRO vis gro_cells in DSA layer, from Alexander Lobakin.
7) Allow hard IRQ deferral during NAPI, from Eric Dumazet.
8) Add sriov and vf support to hinic, from Luo bin.
9) Support Media Redundancy Protocol (MRP) in the bridging code, from
Horatiu Vultur.
10) Support netmap in the nft_nat code, from Pablo Neira Ayuso.
11) Allow UDPv6 encapsulation of ESP in the ipsec code, from Sabrina
Dubroca. Also add ipv6 support for espintcp.
12) Lots of ReST conversions of the networking documentation, from Mauro
Carvalho Chehab.
13) Support configuration of ethtool rxnfc flows in bcmgenet driver,
from Doug Berger.
14) Allow to dump cgroup id and filter by it in inet_diag code, from
Dmitry Yakunin.
15) Add infrastructure to export netlink attribute policies to
userspace, from Johannes Berg.
16) Several optimizations to sch_fq scheduler, from Eric Dumazet.
17) Fallback to the default qdisc if qdisc init fails because otherwise
a packet scheduler init failure will make a device inoperative. From
Jesper Dangaard Brouer.
18) Several RISCV bpf jit optimizations, from Luke Nelson.
19) Correct the return type of the ->ndo_start_xmit() method in several
drivers, it's netdev_tx_t but many drivers were using
'int'. From Yunjian Wang.
20) Add an ethtool interface for PHY master/slave config, from Oleksij
Rempel.
21) Add BPF iterators, from Yonghang Song.
22) Add cable test infrastructure, including ethool interfaces, from
Andrew Lunn. Marvell PHY driver is the first to support this
facility.
23) Remove zero-length arrays all over, from Gustavo A. R. Silva.
24) Calculate and maintain an explicit frame size in XDP, from Jesper
Dangaard Brouer.
25) Add CAP_BPF, from Alexei Starovoitov.
26) Support terse dumps in the packet scheduler, from Vlad Buslov.
27) Support XDP_TX bulking in dpaa2 driver, from Ioana Ciornei.
28) Add devm_register_netdev(), from Bartosz Golaszewski.
29) Minimize qdisc resets, from Cong Wang.
30) Get rid of kernel_getsockopt and kernel_setsockopt in order to
eliminate set_fs/get_fs calls. From Christoph Hellwig.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2517 commits)
selftests: net: ip_defrag: ignore EPERM
net_failover: fixed rollback in net_failover_open()
Revert "tipc: Fix potential tipc_aead refcnt leak in tipc_crypto_rcv"
Revert "tipc: Fix potential tipc_node refcnt leak in tipc_rcv"
vmxnet3: allow rx flow hash ops only when rss is enabled
hinic: add set_channels ethtool_ops support
selftests/bpf: Add a default $(CXX) value
tools/bpf: Don't use $(COMPILE.c)
bpf, selftests: Use bpf_probe_read_kernel
s390/bpf: Use bcr 0,%0 as tail call nop filler
s390/bpf: Maintain 8-byte stack alignment
selftests/bpf: Fix verifier test
selftests/bpf: Fix sample_cnt shared between two threads
bpf, selftests: Adapt cls_redirect to call csum_level helper
bpf: Add csum_level helper for fixing up csum levels
bpf: Fix up bpf_skb_adjust_room helper's skb csum setting
sfc: add missing annotation for efx_ef10_try_update_nic_stats_vf()
crypto/chtls: IPv6 support for inline TLS
Crypto/chcr: Fixes a coccinile check error
Crypto/chcr: Fixes compilations warnings
...
|
|
|
Linus Torvalds
|
96ed320d52 |
New code for 5.8:
- Clean up io_is_direct.
- Add a new statx flag to indicate when file data access is being done
via DAX (as opposed to the page cache).
- Update the documentation for how system administrators and application
programmers can take advantage of the (still experimental DAX) feature.
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Merge tag 'vfs-5.8-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull DAX updates part one from Darrick Wong:
"After many years of LKML-wrangling about how to enable programs to
query and influence the file data access mode (DAX) when a filesystem
resides on storage devices such as persistent memory, Ira Weiny has
emerged with a proposed set of standard behaviors that has not been
shot down by anyone! We're more or less standardizing on the current
XFS behavior and adapting ext4 to do the same.
This is the first of a handful pull requests that will make ext4 and
XFS present a consistent interface for user programs that care about
DAX. We add a statx attribute that programs can check to see if DAX is
enabled on a particular file. Then, we update the DAX documentation to
spell out the user-visible behaviors that filesystems will guarantee
(until the next storage industry shakeup). The on-disk inode flag has
been in XFS for a few years now.
Summary:
- Clean up io_is_direct.
- Add a new statx flag to indicate when file data access is being
done via DAX (as opposed to the page cache).
- Update the documentation for how system administrators and
application programmers can take advantage of the (still
experimental DAX) feature"
Link: https://lore.kernel.org/lkml/20200505002016.1085071-1-ira.weiny@intel.com/
* tag 'vfs-5.8-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
Documentation/dax: Update Usage section
fs/stat: Define DAX statx attribute
fs: Remove unneeded IS_DAX() check in io_is_direct()
|
|
|
Linus Torvalds
|
16d91548d1 |
New code for 5.8:
- Various cleanups to remove dead code, unnecessary conditionals,
asserts, etc.
- Fix a linker warning caused by xfs stuffing '-g' into CFLAGS
redundantly.
- Tighten up our dmesg logging to ensure that everything is prefixed
with 'XFS' for easier grepping.
- Kill a bunch of typedefs.
- Refactor the deferred ops code to reduce indirect function calls.
- Increase type-safety with the deferred ops code.
- Make the DAX mount options a tri-state.
- Fix some error handling problems in the inode flush code and clean up
other inode flush warts.
- Refactor log recovery so that each log item recovery functions now live
with the other log item processing code.
- Fix some SPDX forms.
- Fix quota counter corruption if the fs crashes after running
quotacheck but before any dquots get logged.
- Don't fail metadata verification on zero-entry attr leaf blocks, since
they're just part of the disk format now due to a historic lack of log
atomicity.
- Don't allow SWAPEXT between files with different [ugp]id when quotas
are enabled.
- Refactor inode fork reading and verification to run directly from the
inode-from-disk function. This means that we now actually guarantee
that _iget'ted inodes are totally verified and ready to go.
- Move the incore inode fork format and extent counts to the ifork
structure.
- Scalability improvements by reducing cacheline pingponging in
struct xfs_mount.
- More scalability improvements by removing m_active_trans from the
hot path.
- Fix inode counter update sanity checking to run /only/ on debug
kernels.
- Fix longstanding inconsistency in what error code we return when a
program hits project quota limits (ENOSPC).
- Fix group quota returning the wrong error code when a program hits
group quota limits.
- Fix per-type quota limits and grace periods for group and project
quotas so that they actually work.
- Allow extension of individual grace periods.
- Refactor the non-reclaim inode radix tree walking code to remove a
bunch of stupid little functions and straighten out the
inconsistent naming schemes.
- Fix a bug in speculative preallocation where we measured a new
allocation based on the last extent mapping in the file instead of
looking farther for the last contiguous space allocation.
- Force delalloc writes to unwritten extents. This closes a
stale disk contents exposure vector if the system goes down before
the write completes.
- More lockdep whackamole.
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Merge tag 'xfs-5.8-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs updates from Darrick Wong:
"Most of the changes this cycle are refactoring of existing code in
preparation for things landing in the future.
We also fixed various problems and deficiencies in the quota
implementation, and (I hope) the last of the stale read vectors by
forcing write allocations to go through the unwritten state until the
write completes.
Summary:
- Various cleanups to remove dead code, unnecessary conditionals,
asserts, etc.
- Fix a linker warning caused by xfs stuffing '-g' into CFLAGS
redundantly.
- Tighten up our dmesg logging to ensure that everything is prefixed
with 'XFS' for easier grepping.
- Kill a bunch of typedefs.
- Refactor the deferred ops code to reduce indirect function calls.
- Increase type-safety with the deferred ops code.
- Make the DAX mount options a tri-state.
- Fix some error handling problems in the inode flush code and clean
up other inode flush warts.
- Refactor log recovery so that each log item recovery functions now
live with the other log item processing code.
- Fix some SPDX forms.
- Fix quota counter corruption if the fs crashes after running
quotacheck but before any dquots get logged.
- Don't fail metadata verification on zero-entry attr leaf blocks,
since they're just part of the disk format now due to a historic
lack of log atomicity.
- Don't allow SWAPEXT between files with different [ugp]id when
quotas are enabled.
- Refactor inode fork reading and verification to run directly from
the inode-from-disk function. This means that we now actually
guarantee that _iget'ted inodes are totally verified and ready to
go.
- Move the incore inode fork format and extent counts to the ifork
structure.
- Scalability improvements by reducing cacheline pingponging in
struct xfs_mount.
- More scalability improvements by removing m_active_trans from the
hot path.
- Fix inode counter update sanity checking to run /only/ on debug
kernels.
- Fix longstanding inconsistency in what error code we return when a
program hits project quota limits (ENOSPC).
- Fix group quota returning the wrong error code when a program hits
group quota limits.
- Fix per-type quota limits and grace periods for group and project
quotas so that they actually work.
- Allow extension of individual grace periods.
- Refactor the non-reclaim inode radix tree walking code to remove a
bunch of stupid little functions and straighten out the
inconsistent naming schemes.
- Fix a bug in speculative preallocation where we measured a new
allocation based on the last extent mapping in the file instead of
looking farther for the last contiguous space allocation.
- Force delalloc writes to unwritten extents. This closes a stale
disk contents exposure vector if the system goes down before the
write completes.
- More lockdep whackamole"
* tag 'xfs-5.8-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (129 commits)
xfs: more lockdep whackamole with kmem_alloc*
xfs: force writes to delalloc regions to unwritten
xfs: refactor xfs_iomap_prealloc_size
xfs: measure all contiguous previous extents for prealloc size
xfs: don't fail unwritten extent conversion on writeback due to edquot
xfs: rearrange xfs_inode_walk_ag parameters
xfs: straighten out all the naming around incore inode tree walks
xfs: move xfs_inode_ag_iterator to be closer to the perag walking code
xfs: use bool for done in xfs_inode_ag_walk
xfs: fix inode ag walk predicate function return values
xfs: refactor eofb matching into a single helper
xfs: remove __xfs_icache_free_eofblocks
xfs: remove flags argument from xfs_inode_ag_walk
xfs: remove xfs_inode_ag_iterator_flags
xfs: remove unused xfs_inode_ag_iterator function
xfs: replace open-coded XFS_ICI_NO_TAG
xfs: move eofblocks conversion function to xfs_ioctl.c
xfs: allow individual quota grace period extension
xfs: per-type quota timers and warn limits
xfs: switch xfs_get_defquota to take explicit type
...
|
|
|
Linus Torvalds
|
94709049fb |
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton: "A few little subsystems and a start of a lot of MM patches. Subsystems affected by this patch series: squashfs, ocfs2, parisc, vfs. With mm subsystems: slab-generic, slub, debug, pagecache, gup, swap, memcg, pagemap, memory-failure, vmalloc, kasan" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (128 commits) kasan: move kasan_report() into report.c mm/mm_init.c: report kasan-tag information stored in page->flags ubsan: entirely disable alignment checks under UBSAN_TRAP kasan: fix clang compilation warning due to stack protector x86/mm: remove vmalloc faulting mm: remove vmalloc_sync_(un)mappings() x86/mm/32: implement arch_sync_kernel_mappings() x86/mm/64: implement arch_sync_kernel_mappings() mm/ioremap: track which page-table levels were modified mm/vmalloc: track which page-table levels were modified mm: add functions to track page directory modifications s390: use __vmalloc_node in stack_alloc powerpc: use __vmalloc_node in alloc_vm_stack arm64: use __vmalloc_node in arch_alloc_vmap_stack mm: remove vmalloc_user_node_flags mm: switch the test_vmalloc module to use __vmalloc_node mm: remove __vmalloc_node_flags_caller mm: remove both instances of __vmalloc_node_flags mm: remove the prot argument to __vmalloc_node mm: remove the pgprot argument to __vmalloc ... |
|
|
NeilBrown
|
8d92890bd6 |
mm/writeback: discard NR_UNSTABLE_NFS, use NR_WRITEBACK instead
After an NFS page has been written it is considered "unstable" until a
COMMIT request succeeds. If the COMMIT fails, the page will be
re-written.
These "unstable" pages are currently accounted as "reclaimable", either
in WB_RECLAIMABLE, or in NR_UNSTABLE_NFS which is included in a
'reclaimable' count. This might have made sense when sending the COMMIT
required a separate action by the VFS/MM (e.g. releasepage() used to
send a COMMIT). However now that all writes generated by ->writepages()
will automatically be followed by a COMMIT (since commit
|
|
|
Matthew Wilcox (Oracle)
|
8151b4c8be |
mm: add readahead address space operation
This replaces ->readpages with a saner interface: - Return void instead of an ignored error code. - Page cache is already populated with locked pages when ->readahead is called. - New arguments can be passed to the implementation without changing all the filesystems that use a common helper function like mpage_readahead(). Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: John Hubbard <jhubbard@nvidia.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: William Kucharski <william.kucharski@oracle.com> Cc: Chao Yu <yuchao0@huawei.com> Cc: Cong Wang <xiyou.wangcong@gmail.com> Cc: Darrick J. Wong <darrick.wong@oracle.com> Cc: Dave Chinner <dchinner@redhat.com> Cc: Eric Biggers <ebiggers@google.com> Cc: Gao Xiang <gaoxiang25@huawei.com> Cc: Jaegeuk Kim <jaegeuk@kernel.org> Cc: Joseph Qi <joseph.qi@linux.alibaba.com> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Zi Yan <ziy@nvidia.com> Cc: Johannes Thumshirn <johannes.thumshirn@wdc.com> Cc: Miklos Szeredi <mszeredi@redhat.com> Link: http://lkml.kernel.org/r/20200414150233.24495-12-willy@infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mauro Carvalho Chehab
|
3700bec332 |
docs: filesystems: convert gfs2-glocks.txt to ReST
- 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> |
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Linus Torvalds
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b23c4771ff |
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. -----BEGIN PGP SIGNATURE----- iQFDBAABCAAtFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAl7VId8PHGNvcmJldEBs d24ubmV0AAoJEBdDWhNsDH5Yq/gH/iaDgirQZV6UZ2v9sfwQNYolNpf2sKAuOZjd bPFB7WJoMQbKwQEvYrAUL2+5zPOcLYuIfzyOfo1BV1py+EyKbACcKjI4AedxfJF7 +NchmOBhlEqmEhzx2U08HRc4/8J223WG17fJRVsV3p+opJySexSFeQucfOciX5NR RUCxweWWyg/FgyqjkyMMTtsePqZPmcT5dWTlVXISlbWzcv5NFhuJXnSrw8Sfzcmm SJMzqItv3O+CabnKQ8kMLV2PozXTMfjeWH47ZUK0Y8/8PP9+cvqwFzZ0UDQJ1Xaz oyW/TqmunaXhfMsMFeFGSwtfgwRHvXdxkQdtwNHvo1dV4dzTvDw= =fDC/ -----END PGP SIGNATURE----- Merge tag 'docs-5.8' of git://git.lwn.net/linux 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 ... |
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Linus Torvalds
|
533b220f7b |
arm64 updates for 5.8
- 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
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Merge tag 'arm64-upstream' of 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
...
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Ira Weiny
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15ee65676f |
Documentation/dax: Update DAX enablement for ext4
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> |
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Ira Weiny
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6c0d077ff8 |
fs/ext4: Disallow verity if inode is DAX
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> |
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Flavio Suligoi
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2dcc51b3fe |
docs: filesystems: add info about efivars content
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> |
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Christoph Hellwig
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2d6051d496 |
xfs: call xfs_dinode_verify from xfs_inode_from_disk
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> |
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Eric Biggers
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e3b1078bed |
fscrypt: add support for IV_INO_LBLK_32 policies
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> |
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Eric Biggers
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ed318a6cc0 |
fscrypt: support test_dummy_encryption=v2
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>
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Rikard Falkeborn
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fd79cfd712 |
docs: debugfs: Update struct debugfs_reg32 definition
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> |
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Amir Goldstein
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b0def88d80 |
ovl: resolve more conflicting mount options
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> |
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Chao Yu
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6d92b20103 |
f2fs: compress: support lzo-rle compress algorithm
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> |
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J. Bruce Fields
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28df3d1539 |
nfsd: clients don't need to break their own delegations
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> |
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David S. Miller
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3793faad7b |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicts were all overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net> |
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Mauro Carvalho Chehab
|
982649915d |
docs: filesystems: convert configfs.txt to ReST
- 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> |
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Mauro Carvalho Chehab
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fc2f6fe745 |
docs: filesystems: convert xfs-self-describing-metadata.txt to ReST
- 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> |
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Mauro Carvalho Chehab
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c3d2f6cb4c |
docs: filesystems: convert xfs-delayed-logging-design.txt to ReST
- 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> |
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Mauro Carvalho Chehab
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ec4551f450 |
docs: filesystems: convert sysfs-tagging.txt to ReST
- 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> |
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Mauro Carvalho Chehab
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28bcadf0ae |
docs: filesystems: convert sysfs-pci.txt to ReST
- 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> |
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Mauro Carvalho Chehab
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e2975d7ca8 |
docs: filesystems: convert spufs/spu_run.txt to ReST
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> |
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Mauro Carvalho Chehab
|
299cd2747c |
docs: filesystems: convert spufs/spufs.txt to ReST
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> |
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Mauro Carvalho Chehab
|
dc3f043ff0 |
docs: filesystems: convert spufs/spu_create.txt to ReST
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> |
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Mauro Carvalho Chehab
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a5a1c349ac |
docs: filesystems: split spufs.txt into 3 separate files
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> |
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Mauro Carvalho Chehab
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cf06612c65 |
docs: filesystems: convert sharedsubtree.txt to ReST
- 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> |
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Mauro Carvalho Chehab
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53a41d3eec |
docs: filesystems: convert seq_file.txt to ReST
- 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> |
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Mauro Carvalho Chehab
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9b6f151e76 |
docs: filesystems: convert quota.txt to ReST
- 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> |
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Mauro Carvalho Chehab
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791a17ee19 |
docs: filesystems: convert mount_api.txt to ReST
- 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> |
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Mauro Carvalho Chehab
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a02dcdf65b |
docs: filesystems: convert mandatory-locking.txt to ReST
- 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> |