mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-17 17:53:56 +08:00
8df0136376
2210 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
6b1f86f8e9 |
Filesystem folio changes for 5.18
Primarily this series converts some of the address_space operations
to take a folio instead of a page.
->is_partially_uptodate() takes a folio instead of a page and changes the
type of the 'from' and 'count' arguments to make it obvious they're bytes.
->invalidatepage() becomes ->invalidate_folio() and has a similar type change.
->launder_page() becomes ->launder_folio()
->set_page_dirty() becomes ->dirty_folio() and adds the address_space as
an argument.
There are a couple of other misc changes up front that weren't worth
separating into their own pull request.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCgAdFiEEejHryeLBw/spnjHrDpNsjXcpgj4FAmI4hqMACgkQDpNsjXcp
gj7r7Af/fVJ7m8kKqjP/IayX3HiJRuIDQw+vM++BlRNXdjz+IyED6whdmFGxJeOY
BMyT+8ApOAz7ErS4G+7fAv4ScJK/aEgFUsnSeAiCp0PliiEJ5NNJzElp6sVmQ7H5
SX7+Ek444FZUGsQuy0qL7/ELpR3ditnD7x+5U2g0p5TeaHGUQn84crRyfR4xuhNG
EBD9D71BOb7OxUcOHe93pTkK51QsQ0aCrcIsB1tkK5KR0BAthn1HqF7ehL90Rvrr
omx5M7aDWGY4oj7IKrhlAs+55Ah2WaOzrZBp0FXNbr4UENDBKWKyUxErwa4xPkf6
Gm1iQG/CspOHnxN3YWsd5WjtlL3A+A==
=cOiq
-----END PGP SIGNATURE-----
Merge tag 'folio-5.18b' of git://git.infradead.org/users/willy/pagecache
Pull filesystem folio updates from Matthew Wilcox:
"Primarily this series converts some of the address_space operations to
take a folio instead of a page.
Notably:
- a_ops->is_partially_uptodate() takes a folio instead of a page and
changes the type of the 'from' and 'count' arguments to make it
obvious they're bytes.
- a_ops->invalidatepage() becomes ->invalidate_folio() and has a
similar type change.
- a_ops->launder_page() becomes ->launder_folio()
- a_ops->set_page_dirty() becomes ->dirty_folio() and adds the
address_space as an argument.
There are a couple of other misc changes up front that weren't worth
separating into their own pull request"
* tag 'folio-5.18b' of git://git.infradead.org/users/willy/pagecache: (53 commits)
fs: Remove aops ->set_page_dirty
fb_defio: Use noop_dirty_folio()
fs: Convert __set_page_dirty_no_writeback to noop_dirty_folio
fs: Convert __set_page_dirty_buffers to block_dirty_folio
nilfs: Convert nilfs_set_page_dirty() to nilfs_dirty_folio()
mm: Convert swap_set_page_dirty() to swap_dirty_folio()
ubifs: Convert ubifs_set_page_dirty to ubifs_dirty_folio
f2fs: Convert f2fs_set_node_page_dirty to f2fs_dirty_node_folio
f2fs: Convert f2fs_set_data_page_dirty to f2fs_dirty_data_folio
f2fs: Convert f2fs_set_meta_page_dirty to f2fs_dirty_meta_folio
afs: Convert afs_dir_set_page_dirty() to afs_dir_dirty_folio()
btrfs: Convert extent_range_redirty_for_io() to use folios
fs: Convert trivial uses of __set_page_dirty_nobuffers to filemap_dirty_folio
btrfs: Convert from set_page_dirty to dirty_folio
fscache: Convert fscache_set_page_dirty() to fscache_dirty_folio()
fs: Add aops->dirty_folio
fs: Remove aops->launder_page
orangefs: Convert launder_page to launder_folio
nfs: Convert from launder_page to launder_folio
fuse: Convert from launder_page to launder_folio
...
|
||
|
Linus Torvalds
|
3bf03b9a08 |
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton:
- A few misc subsystems: kthread, scripts, ntfs, ocfs2, block, and vfs
- Most the MM patches which precede the patches in Willy's tree: kasan,
pagecache, gup, swap, shmem, memcg, selftests, pagemap, mremap,
sparsemem, vmalloc, pagealloc, memory-failure, mlock, hugetlb,
userfaultfd, vmscan, compaction, mempolicy, oom-kill, migration, thp,
cma, autonuma, psi, ksm, page-poison, madvise, memory-hotplug, rmap,
zswap, uaccess, ioremap, highmem, cleanups, kfence, hmm, and damon.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (227 commits)
mm/damon/sysfs: remove repeat container_of() in damon_sysfs_kdamond_release()
Docs/ABI/testing: add DAMON sysfs interface ABI document
Docs/admin-guide/mm/damon/usage: document DAMON sysfs interface
selftests/damon: add a test for DAMON sysfs interface
mm/damon/sysfs: support DAMOS stats
mm/damon/sysfs: support DAMOS watermarks
mm/damon/sysfs: support schemes prioritization
mm/damon/sysfs: support DAMOS quotas
mm/damon/sysfs: support DAMON-based Operation Schemes
mm/damon/sysfs: support the physical address space monitoring
mm/damon/sysfs: link DAMON for virtual address spaces monitoring
mm/damon: implement a minimal stub for sysfs-based DAMON interface
mm/damon/core: add number of each enum type values
mm/damon/core: allow non-exclusive DAMON start/stop
Docs/damon: update outdated term 'regions update interval'
Docs/vm/damon/design: update DAMON-Idle Page Tracking interference handling
Docs/vm/damon: call low level monitoring primitives the operations
mm/damon: remove unnecessary CONFIG_DAMON option
mm/damon/paddr,vaddr: remove damon_{p,v}a_{target_valid,set_operations}()
mm/damon/dbgfs-test: fix is_target_id() change
...
|
||
Muchun Song
|
8b9f3ac5b0 |
fs: introduce alloc_inode_sb() to allocate filesystems specific inode
The allocated inode cache is supposed to be added to its memcg list_lru which should be allocated as well in advance. That can be done by kmem_cache_alloc_lru() which allocates object and list_lru. The file systems is main user of it. So introduce alloc_inode_sb() to allocate file system specific inodes and set up the inode reclaim context properly. The file system is supposed to use alloc_inode_sb() to allocate inodes. In later patches, we will convert all users to the new API. Link: https://lkml.kernel.org/r/20220228122126.37293-4-songmuchun@bytedance.com Signed-off-by: Muchun Song <songmuchun@bytedance.com> Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev> Cc: Alex Shi <alexs@kernel.org> Cc: Anna Schumaker <Anna.Schumaker@Netapp.com> Cc: Chao Yu <chao@kernel.org> Cc: Dave Chinner <david@fromorbit.com> Cc: Fam Zheng <fam.zheng@bytedance.com> Cc: Jaegeuk Kim <jaegeuk@kernel.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Kari Argillander <kari.argillander@gmail.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Qi Zheng <zhengqi.arch@bytedance.com> Cc: Shakeel Butt <shakeelb@google.com> Cc: Theodore Ts'o <tytso@mit.edu> Cc: Trond Myklebust <trond.myklebust@hammerspace.com> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Wei Yang <richard.weiyang@gmail.com> Cc: Xiongchun Duan <duanxiongchun@bytedance.com> Cc: Yang Shi <shy828301@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
NeilBrown
|
84dacdbd53 |
mm: document and polish read-ahead code
Add some "big-picture" documentation for read-ahead and polish the code to make it fit this documentation. The meaning of ->async_size is clarified to match its name. i.e. Any request to ->readahead() has a sync part and an async part. The caller will wait for the sync pages to complete, but will not wait for the async pages. The first async page is still marked PG_readahead Note that the current function names page_cache_sync_ra() and page_cache_async_ra() are misleading. All ra request are partly sync and partly async, so either part can be empty. A page_cache_sync_ra() request will usually set ->async_size non-zero, implying it is not all synchronous. When a non-zero req_count is passed to page_cache_async_ra(), the implication is that some prefix of the request is synchronous, though the calculation made there is incorrect - I haven't tried to fix it. Link: https://lkml.kernel.org/r/164549983734.9187.11586890887006601405.stgit@noble.brown Signed-off-by: NeilBrown <neilb@suse.de> Cc: Anna Schumaker <Anna.Schumaker@Netapp.com> Cc: Chao Yu <chao@kernel.org> Cc: Darrick J. Wong <djwong@kernel.org> Cc: Ilya Dryomov <idryomov@gmail.com> Cc: Jaegeuk Kim <jaegeuk@kernel.org> Cc: Jan Kara <jack@suse.cz> Cc: Jeff Layton <jlayton@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Lars Ellenberg <lars.ellenberg@linbit.com> Cc: Miklos Szeredi <miklos@szeredi.hu> Cc: Paolo Valente <paolo.valente@linaro.org> Cc: Philipp Reisner <philipp.reisner@linbit.com> Cc: Ryusuke Konishi <konishi.ryusuke@gmail.com> Cc: Trond Myklebust <trond.myklebust@hammerspace.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Linus Torvalds
|
9b03992f0c |
Fix some bugs in converting ext4 to use the new mount API, as well as
more bug fixes and clean ups in the ext4 fast_commit feature (most notably, in the tracepoints). In the jbd2 layer, the t_handle_lock spinlock has been removed, with the last place where it was actually needed replaced with an atomic cmpxchg. -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEOrBXt+eNlFyMVZH70292m8EYBPAFAmI5QPsACgkQ0292m8EY BPD99Q//ZO7L0XUicNEsuxvtXDj4GBWg/R62JXcHsIetIRhCpM4+L2vS3kZVXCBh Pd+QMYsfAhuXFK3yK5MfvAb+XJ2e0iVNaw9ke2ueAsrGidlKWOstbMWWqEa4Dcr2 age1DdrRB5hXIFxOg+Qz8bPMpP9XfxEiMqT2K7PgB+R/Z2chBbwPJ/G1VmdOMNGe FzxZgvXFY5EIJgjqj09ioD5pUSlAj5sgI4y/Dcv4liW11kvgBxg7Mm8ZouoPRHa3 gZF5mj/40izhD8gYPmZJtHFFYuqBBLsrmJnjUF2Y2yvZt5I14j4w/5OfcjuJqWn6 t2mlnk8/o6ZHzyuUV0/8/x35rZBlwqMq9ep6L9pN07XVB0/xOMG7a59pWOElhFGp sG/ELhP251ZE+glWC9/X1VjnhM+agduiWAUY0wF0X62LM3sw6sVO3q6hsI1EKunN O5VlvzPXNTZn9bcKzXzpvbxP9vF6s4exf32rMxd1rfSptE6myavGwss7MlB1HM7v xiM/A4AZT/qlUH9eOJxF1aGcswpxnFwTwHKZqBVW32iyG9mbqRT2lKajx4WstowU pdI4X7YfF7GhI5tMFR5S4Fa9FiOivO4EEc6z/db753kVuxSjwtyDd8ip56ZuJUhU LqpwZO2bh+UhR0vRO0pQH/ZqCzCfCaJTGtBwAvJUwo3g/zRTmoc= =naSC -----END PGP SIGNATURE----- Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 updates from Ted Ts'o: "Fix some bugs in converting ext4 to use the new mount API, as well as more bug fixes and clean ups in the ext4 fast_commit feature (most notably, in the tracepoints). In the jbd2 layer, the t_handle_lock spinlock has been removed, with the last place where it was actually needed replaced with an atomic cmpxchg" * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (35 commits) ext4: fix kernel doc warnings ext4: fix remaining two trace events to use same printk convention ext4: add commit tid info in ext4_fc_commit_start/stop trace events ext4: add commit_tid info in jbd debug log ext4: add transaction tid info in fc_track events ext4: add new trace event in ext4_fc_cleanup ext4: return early for non-eligible fast_commit track events ext4: do not call FC trace event in ext4_fc_commit() if FS does not support FC ext4: convert ext4_fc_track_dentry type events to use event class ext4: fix ext4_fc_stats trace point ext4: remove unused enum EXT4_FC_COMMIT_FAILED ext4: warn when dirtying page w/o buffers in data=journal mode doc: fixed a typo in ext4 documentation ext4: make mb_optimize_scan performance mount option work with extents ext4: make mb_optimize_scan option work with set/unset mount cmd ext4: don't BUG if someone dirty pages without asking ext4 first ext4: remove redundant assignment to variable split_flag1 ext4: fix underflow in ext4_max_bitmap_size() ext4: fix ext4_mb_clear_bb() kernel-doc comment ext4: fix fs corruption when tring to remove a non-empty directory with IO error ... |
||
|
Linus Torvalds
|
14705fda8f |
New features:
- NFSv3 support in NFSD is now always built - Added NFSD support for the NFSv4 birth-time file attribute - Added support for storing and displaying sockaddrs in trace points - NFSD now recognizes RPC_AUTH_TLS probes Performance improvements: - Optimized the svc transport enqueuing mechanism - Added micro-optimizations for the duplicate reply cache Notable bug fixes: - Allocation of the NFSD file cache hash table is more reliable -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEKLLlsBKG3yQ88j7+M2qzM29mf5cFAmI3XNkACgkQM2qzM29m f5dNERAAqJ/nzfVp2H5BKLszJ7p/s13wFqbW719Rzymzl6/tUUHOqIsVdBsJsa/b BdZQLLDwa6ZB5zOAnC6FosRKYu4lwixOOf94pC6a9ZDD/glYVKF8mZG+RZXPAy16 g3JUOi/bcyHXv0ZUhbv7DqW+HHM+owPP4vlNJ9ChiiLr/Xdp8NBKj+4Qtn/wcAo+ Xuvx7fU/5Mbemh+dd5mWker4afHvpt9V6U6s04m5LiTPPnHVnxmeyekJGUCOY0QO cm/6SPNDqyn/VEfM/SRxEnLE9QcHRhZo/4PKRGF4wYolcviIogbILE1M7Ig/r/Gv 6Du2kcRAhyZ3zgWnu799Ivn3Q6IrVjxZwqmsi7YHURTwYKyZtxYsUk0MCBcpnxrE WyTS2onpElbMop3viKCnQdpIetbsHnUNg3udUV6ugbdCbnZuhUw5B/d6x0o8ZWDE C0f+jnX+GnBstn0vkcj2H0+VQTd5hUJtXMrooI42ODJoboQRZcmePwoXjqCmw3sy PXTxLZC/5+4zNHGUuz4Pq4V7FKr4nHhDzaW4ZDO3mILx4ahceotulY1B/yoBUu8o /LAhu2kJ6nFQkmpzdrGzPeOstgJYHm9CaitRvMzg+NJxEAJdebypdQDbX5iNpgfW MDXH4n8eIqroTlQ/mQYEV0EbC7BaTqSCL6rQdcrcFUPu9n4Fcno= =5nac -----END PGP SIGNATURE----- Merge tag 'nfsd-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux Pull nfsd updates from Chuck Lever: "New features: - NFSv3 support in NFSD is now always built - Added NFSD support for the NFSv4 birth-time file attribute - Added support for storing and displaying sockaddrs in trace points - NFSD now recognizes RPC_AUTH_TLS probes Performance improvements: - Optimized the svc transport enqueuing mechanism - Added micro-optimizations for the duplicate reply cache Notable bug fixes: - Allocation of the NFSD file cache hash table is more reliable" * tag 'nfsd-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (30 commits) nfsd: fix using the correct variable for sizeof() nfsd: use correct format characters NFSD: prevent integer overflow on 32 bit systems NFSD: prevent underflow in nfssvc_decode_writeargs() fs/lock: documentation cleanup. Replace inode->i_lock with flc_lock. NFSD: Fix nfsd_breaker_owns_lease() return values NFSD: Clean up _lm_ operation names arch: Remove references to CONFIG_NFSD_V3 in the default configs NFSD: Remove CONFIG_NFSD_V3 nfsd: more robust allocation failure handling in nfsd_file_cache_init SUNRPC: Teach server to recognize RPC_AUTH_TLS NFSD: Move svc_serv_ops::svo_function into struct svc_serv NFSD: Remove svc_serv_ops::svo_module SUNRPC: Remove svc_shutdown_net() SUNRPC: Rename svc_close_xprt() SUNRPC: Rename svc_create_xprt() SUNRPC: Remove svo_shutdown method SUNRPC: Merge svc_do_enqueue_xprt() into svc_enqueue_xprt() SUNRPC: Remove the .svo_enqueue_xprt method SUNRPC: Record endpoint information in trace log ... |
||
|
Linus Torvalds
|
aab4ed5816 |
Changes since last update:
- Avoid using page structure directly for all uncompressed paths;
- Fix a double-free issue when sysfs initialization fails;
- Complete DAX description for erofs;
- Use mtime instead since there's no (easy) way for users to control
ctime;
- Several code cleanups.
-----BEGIN PGP SIGNATURE-----
iJIEABYIADoWIQThPAmQN9sSA0DVxtI5NzHcH7XmBAUCYjfdHxwcaHNpYW5na2Fv
QGxpbnV4LmFsaWJhYmEuY29tAAoJEDk3MdwfteYEvbYBANAWd+wSFLS3XDEzM3Nw
VzdMW7lfnrqog8HgqbcRHm9OAP9zx3KZaCh/frUA1OCKk/H0KD6UFShu6fXgBri+
DJMnCw==
=a5Ns
-----END PGP SIGNATURE-----
Merge tag 'erofs-for-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs updates from Gao Xiang:
"In this cycle, we continue converting to use meta buffers for all
remaining uncompressed paths to prepare for the upcoming subpage,
folio and fscache features.
We also fixed a double-free issue when sysfs initialization fails,
which was reported by syzbot.
Besides, in order for the userspace to control per-file timestamp
easier, we now switch to record mtime instead of ctime with a
compatible feature marked. And there are also some code cleanups and
documentation update as usual.
Summary:
- Avoid using page structure directly for all uncompressed paths
- Fix a double-free issue when sysfs initialization fails
- Complete DAX description for erofs
- Use mtime instead since there's no (easy) way for users to control
ctime
- Several code cleanups"
* tag 'erofs-for-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
erofs: rename ctime to mtime
erofs: use meta buffers for inode lookup
erofs: use meta buffers for reading directories
fs: erofs: add sanity check for kobject in erofs_unregister_sysfs
erofs: refine managed inode stuffs
erofs: clean up z_erofs_extent_lookback
erofs: silence warnings related to impossible m_plen
Documentation/filesystem/dax: update DAX description on erofs
erofs: clean up preload_compressed_pages()
erofs: get rid of `struct z_erofs_collector'
erofs: use meta buffers for erofs_read_superblock()
|
||
David Anderson
|
a1108dcd93 |
erofs: rename ctime to mtime
EROFS images should inherit modification time rather than change time, since users and host tooling have no easy way to control change time. To reflect the new timestamp meaning, i_ctime and i_ctime_nsec are renamed to i_mtime and i_mtime_nsec. Link: https://lore.kernel.org/r/20220311041829.3109511-1-dvander@google.com # v1 Signed-off-by: David Anderson <dvander@google.com> [ Gao Xiang: update document as well. ] Reviewed-by: Chao Yu <chao@kernel.org> Link: https://lore.kernel.org/r/20220317114959.106787-1-hsiangkao@linux.alibaba.com # v2 Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com> |
||
lihongnan
|
faac509507 |
Documentation/filesystem/dax: update DAX description on erofs
Add missing erofs fsdax description since fsdax has been supported on erofs from Linux 5.15. Link: https://lore.kernel.org/r/20220308034139.93748-1-hongnan.li@linux.alibaba.com Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com> Acked-by: Chao Yu <chao@kernel.org> Signed-off-by: lihongnan <hongnan.lhn@alibaba-inc.com> Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com> |
||
Matthew Wilcox (Oracle)
|
8fb72b4a76 |
fscache: Convert fscache_set_page_dirty() to fscache_dirty_folio()
Convert all users of fscache_set_page_dirty to use fscache_dirty_folio. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Tested-by: Mike Marshall <hubcap@omnibond.com> # orangefs Tested-by: David Howells <dhowells@redhat.com> # afs |
||
|
Matthew Wilcox (Oracle)
|
6f31a5a261 |
fs: Add aops->dirty_folio
This replaces ->set_page_dirty(). It returns a bool instead of an int and takes the address_space as a parameter instead of expecting the implementations to retrieve the address_space from the page. This is particularly important for filesystems which use FS_OPS for swap. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Tested-by: Mike Marshall <hubcap@omnibond.com> # orangefs Tested-by: David Howells <dhowells@redhat.com> # afs |
||
|
Matthew Wilcox (Oracle)
|
affa80e8c6 |
fs: Add aops->launder_folio
Since the only difference between ->launder_page and ->launder_folio is the type of the pointer, these can safely use a union without affecting bisectability. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Tested-by: Mike Marshall <hubcap@omnibond.com> # orangefs Tested-by: David Howells <dhowells@redhat.com> # afs |
||
|
Matthew Wilcox (Oracle)
|
f50015a596 |
fs: Remove aops->invalidatepage
With all users migrated to ->invalidate_folio, remove the old operation. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Tested-by: Mike Marshall <hubcap@omnibond.com> # orangefs Tested-by: David Howells <dhowells@redhat.com> # afs |
||
|
Matthew Wilcox (Oracle)
|
128d1f8241 |
fs: Add invalidate_folio() aops method
This is used in preference to invalidatepage, if defined. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Tested-by: Mike Marshall <hubcap@omnibond.com> # orangefs Tested-by: David Howells <dhowells@redhat.com> # afs |
||
|
Matthew Wilcox (Oracle)
|
2e7e80f7e7 |
fs: Convert is_partially_uptodate to folios
Since the uptodate property is maintained on a per-folio basis, the is_partially_uptodate method should also take a folio. Fix the types at the same time so it's clear that it returns true/false and takes the count in bytes, not blocks. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Tested-by: Mike Marshall <hubcap@omnibond.com> # orangefs Tested-by: David Howells <dhowells@redhat.com> # afs |
||
lianzhi chang
|
688b0d8536 |
doc: fixed a typo in ext4 documentation
The unit of file system size should be TiB, not PiB Signed-off-by: lianzhi chang <changlianzhi@uniontech.com> Link: https://lore.kernel.org/r/20220310014415.29937-1-changlianzhi@uniontech.com Signed-off-by: Theodore Ts'o <tytso@mit.edu> |
||
Dai Ngo
|
9d6647762b |
fs/lock: documentation cleanup. Replace inode->i_lock with flc_lock.
Update lock usage of lock_manager_operations' functions to reflect
the changes in commit
|
||
Eric Biggers
|
cdaa1b1941 |
fscrypt: update documentation for direct I/O support
Now that direct I/O is supported on encrypted files in some cases, document what these cases are. Link: https://lore.kernel.org/r/20220128233940.79464-6-ebiggers@kernel.org Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Eric Biggers <ebiggers@google.com> |
||
David Howells
|
bee9f65523 |
netfs, cachefiles: Add a method to query presence of data in the cache
Add a netfs_cache_ops method by which a network filesystem can ask the cache about what data it has available and where so that it can make a multipage read more efficient. Signed-off-by: David Howells <dhowells@redhat.com> cc: linux-cachefs@redhat.com Acked-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Rohith Surabattula <rohiths@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.com> |
||
|
Linus Torvalds
|
64f29d8856 |
The highlight is the new mount "device" string syntax implemented
by Venky Shankar. It solves some long-standing issues with using different auth entities and/or mounting different CephFS filesystems from the same cluster, remounting and also misleading /proc/mounts contents. The existing syntax of course remains to be maintained. On top of that, there is a couple of fixes for edge cases in quota and a new mount option for turning on unbuffered I/O mode globally instead of on a per-file basis with ioctl(CEPH_IOC_SYNCIO). -----BEGIN PGP SIGNATURE----- iQFHBAABCAAxFiEEydHwtzie9C7TfviiSn/eOAIR84sFAmHpP5ATHGlkcnlvbW92 QGdtYWlsLmNvbQAKCRBKf944AhHzi0TgB/480i2lPHgA3ujJNqo5Q6z+W0vtTA2+ Wx+4rAUgIESJVunbFxvecPbzyUXTe7wWFI11TCVHPpf6GyIIDTD+uHd3kKWtLsfL Zkk1/2PN9Q5Dh29R+N8rP9NaP8tIaTQjyiO3iqmRZlo+k0Z/lYtWUb+fUP05XlVY ML/ktW543tkKeYwl3SWdW5MqAAOVGDbTt+L51CraDhVoiUac5ptkP+cmDmIqsnGa ZHVqpwugxgndEIyuBHDLBps+5/LrEaL10xDhGcMtP9hwGYhyNr6Yj+azfGtHWwOi jdVsdHDiecUBVtGyZ351Y4pCMOmP0uJif6MOUZFXYYSSeUBUhH8UjgEi =jcte -----END PGP SIGNATURE----- Merge tag 'ceph-for-5.17-rc1' of git://github.com/ceph/ceph-client Pull ceph updates from Ilya Dryomov: "The highlight is the new mount "device" string syntax implemented by Venky Shankar. It solves some long-standing issues with using different auth entities and/or mounting different CephFS filesystems from the same cluster, remounting and also misleading /proc/mounts contents. The existing syntax of course remains to be maintained. On top of that, there is a couple of fixes for edge cases in quota and a new mount option for turning on unbuffered I/O mode globally instead of on a per-file basis with ioctl(CEPH_IOC_SYNCIO)" * tag 'ceph-for-5.17-rc1' of git://github.com/ceph/ceph-client: ceph: move CEPH_SUPER_MAGIC definition to magic.h ceph: remove redundant Lsx caps check ceph: add new "nopagecache" option ceph: don't check for quotas on MDS stray dirs ceph: drop send metrics debug message rbd: make const pointer spaces a static const array ceph: Fix incorrect statfs report for small quota ceph: mount syntax module parameter doc: document new CephFS mount device syntax ceph: record updated mon_addr on remount ceph: new device mount syntax libceph: rename parse_fsid() to ceph_parse_fsid() and export libceph: generalize addr/ip parsing based on delimiter |
||
|
Linus Torvalds
|
1d1df41c5a |
f2fs-for-5.17-rc1
In this round, we've tried to address some performance issues in f2fs_checkpoint
and direct IO flows. Also, there was a work to enhance the page cache management
used for compression. Other than them, we've done typical work including sysfs,
code clean-ups, tracepoint, sanity check, in addition to bug fixes on corner
cases.
Enhancement:
- use iomap for direct IO
- try to avoid lock contention to improve f2fs_ckpt speed
- avoid unnecessary memory allocation in compression flow
- POSIX_FADV_DONTNEED drops the page cache containing compression pages
- add some sysfs entries (gc_urgent_high_remaining, pending_discard)
Bug fix:
- try not to expose unwritten blocks to user by DIO
: this was added to avoid merge conflict; another patch is coming to address
other missing case.
- relax minor error condition for file pinning feature used in Android OTA
- fix potential deadlock case in compression flow
- should not truncate any block on pinned file
In addition, we've done some code clean-ups and tracepoint/sanity check
improvement.
-----BEGIN PGP SIGNATURE-----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=LCJH
-----END PGP SIGNATURE-----
Merge tag 'f2fs-for-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"In this round, we've tried to address some performance issues in
f2fs_checkpoint and direct IO flows. Also, there was a work to enhance
the page cache management used for compression. Other than them, we've
done typical work including sysfs, code clean-ups, tracepoint, sanity
check, in addition to bug fixes on corner cases.
Enhancements:
- use iomap for direct IO
- try to avoid lock contention to improve f2fs_ckpt speed
- avoid unnecessary memory allocation in compression flow
- POSIX_FADV_DONTNEED drops the page cache containing compression
pages
- add some sysfs entries (gc_urgent_high_remaining, pending_discard)
Bug fixes:
- try not to expose unwritten blocks to user by DIO (this was added
to avoid merge conflict; another patch is coming to address other
missing case)
- relax minor error condition for file pinning feature used in
Android OTA
- fix potential deadlock case in compression flow
- should not truncate any block on pinned file
In addition, we've done some code clean-ups and tracepoint/sanity
check improvement"
* tag 'f2fs-for-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (29 commits)
f2fs: do not allow partial truncation on pinned file
f2fs: remove redunant invalidate compress pages
f2fs: Simplify bool conversion
f2fs: don't drop compressed page cache in .{invalidate,release}page
f2fs: fix to reserve space for IO align feature
f2fs: fix to check available space of CP area correctly in update_ckpt_flags()
f2fs: support fault injection to f2fs_trylock_op()
f2fs: clean up __find_inline_xattr() with __find_xattr()
f2fs: fix to do sanity check on last xattr entry in __f2fs_setxattr()
f2fs: do not bother checkpoint by f2fs_get_node_info
f2fs: avoid down_write on nat_tree_lock during checkpoint
f2fs: compress: fix potential deadlock of compress file
f2fs: avoid EINVAL by SBI_NEED_FSCK when pinning a file
f2fs: add gc_urgent_high_remaining sysfs node
f2fs: fix to do sanity check in is_alive()
f2fs: fix to avoid panic in is_alive() if metadata is inconsistent
f2fs: fix to do sanity check on inode type during garbage collection
f2fs: avoid duplicate call of mark_inode_dirty
f2fs: show number of pending discard commands
f2fs: support POSIX_FADV_DONTNEED drop compressed page cache
...
|
||
|
Linus Torvalds
|
f56caedaf9 |
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton: "146 patches. Subsystems affected by this patch series: kthread, ia64, scripts, ntfs, squashfs, ocfs2, vfs, and mm (slab-generic, slab, kmemleak, dax, kasan, debug, pagecache, gup, shmem, frontswap, memremap, memcg, selftests, pagemap, dma, vmalloc, memory-failure, hugetlb, userfaultfd, vmscan, mempolicy, oom-kill, hugetlbfs, migration, thp, ksm, page-poison, percpu, rmap, zswap, zram, cleanups, hmm, and damon)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (146 commits) mm/damon: hide kernel pointer from tracepoint event mm/damon/vaddr: hide kernel pointer from damon_va_three_regions() failure log mm/damon/vaddr: use pr_debug() for damon_va_three_regions() failure logging mm/damon/dbgfs: remove an unnecessary variable mm/damon: move the implementation of damon_insert_region to damon.h mm/damon: add access checking for hugetlb pages Docs/admin-guide/mm/damon/usage: update for schemes statistics mm/damon/dbgfs: support all DAMOS stats Docs/admin-guide/mm/damon/reclaim: document statistics parameters mm/damon/reclaim: provide reclamation statistics mm/damon/schemes: account how many times quota limit has exceeded mm/damon/schemes: account scheme actions that successfully applied mm/damon: remove a mistakenly added comment for a future feature Docs/admin-guide/mm/damon/usage: update for kdamond_pid and (mk|rm)_contexts Docs/admin-guide/mm/damon/usage: mention tracepoint at the beginning Docs/admin-guide/mm/damon/usage: remove redundant information Docs/admin-guide/mm/damon/usage: update for scheme quotas and watermarks mm/damon: convert macro functions to static inline functions mm/damon: modify damon_rand() macro to static inline function mm/damon: move damon_rand() definition into damon.h ... |
||
Colin Cross
|
9a10064f56 |
mm: add a field to store names for private anonymous memory
In many userspace applications, and especially in VM based applications like Android uses heavily, there are multiple different allocators in use. At a minimum there is libc malloc and the stack, and in many cases there are libc malloc, the stack, direct syscalls to mmap anonymous memory, and multiple VM heaps (one for small objects, one for big objects, etc.). Each of these layers usually has its own tools to inspect its usage; malloc by compiling a debug version, the VM through heap inspection tools, and for direct syscalls there is usually no way to track them. On Android we heavily use a set of tools that use an extended version of the logic covered in Documentation/vm/pagemap.txt to walk all pages mapped in userspace and slice their usage by process, shared (COW) vs. unique mappings, backing, etc. This can account for real physical memory usage even in cases like fork without exec (which Android uses heavily to share as many private COW pages as possible between processes), Kernel SamePage Merging, and clean zero pages. It produces a measurement of the pages that only exist in that process (USS, for unique), and a measurement of the physical memory usage of that process with the cost of shared pages being evenly split between processes that share them (PSS). If all anonymous memory is indistinguishable then figuring out the real physical memory usage (PSS) of each heap requires either a pagemap walking tool that can understand the heap debugging of every layer, or for every layer's heap debugging tools to implement the pagemap walking logic, in which case it is hard to get a consistent view of memory across the whole system. Tracking the information in userspace leads to all sorts of problems. It either needs to be stored inside the process, which means every process has to have an API to export its current heap information upon request, or it has to be stored externally in a filesystem that somebody needs to clean up on crashes. It needs to be readable while the process is still running, so it has to have some sort of synchronization with every layer of userspace. Efficiently tracking the ranges requires reimplementing something like the kernel vma trees, and linking to it from every layer of userspace. It requires more memory, more syscalls, more runtime cost, and more complexity to separately track regions that the kernel is already tracking. This patch adds a field to /proc/pid/maps and /proc/pid/smaps to show a userspace-provided name for anonymous vmas. The names of named anonymous vmas are shown in /proc/pid/maps and /proc/pid/smaps as [anon:<name>]. Userspace can set the name for a region of memory by calling prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, start, len, (unsigned long)name) Setting the name to NULL clears it. The name length limit is 80 bytes including NUL-terminator and is checked to contain only printable ascii characters (including space), except '[',']','\','$' and '`'. Ascii strings are being used to have a descriptive identifiers for vmas, which can be understood by the users reading /proc/pid/maps or /proc/pid/smaps. Names can be standardized for a given system and they can include some variable parts such as the name of the allocator or a library, tid of the thread using it, etc. The name is stored in a pointer in the shared union in vm_area_struct that points to a null terminated string. Anonymous vmas with the same name (equivalent strings) and are otherwise mergeable will be merged. The name pointers are not shared between vmas even if they contain the same name. The name pointer is stored in a union with fields that are only used on file-backed mappings, so it does not increase memory usage. CONFIG_ANON_VMA_NAME kernel configuration is introduced to enable this feature. It keeps the feature disabled by default to prevent any additional memory overhead and to avoid confusing procfs parsers on systems which are not ready to support named anonymous vmas. The patch is based on the original patch developed by Colin Cross, more specifically on its latest version [1] posted upstream by Sumit Semwal. It used a userspace pointer to store vma names. In that design, name pointers could be shared between vmas. However during the last upstreaming attempt, Kees Cook raised concerns [2] about this approach and suggested to copy the name into kernel memory space, perform validity checks [3] and store as a string referenced from vm_area_struct. One big concern is about fork() performance which would need to strdup anonymous vma names. Dave Hansen suggested experimenting with worst-case scenario of forking a process with 64k vmas having longest possible names [4]. I ran this experiment on an ARM64 Android device and recorded a worst-case regression of almost 40% when forking such a process. This regression is addressed in the followup patch which replaces the pointer to a name with a refcounted structure that allows sharing the name pointer between vmas of the same name. Instead of duplicating the string during fork() or when splitting a vma it increments the refcount. [1] https://lore.kernel.org/linux-mm/20200901161459.11772-4-sumit.semwal@linaro.org/ [2] https://lore.kernel.org/linux-mm/202009031031.D32EF57ED@keescook/ [3] https://lore.kernel.org/linux-mm/202009031022.3834F692@keescook/ [4] https://lore.kernel.org/linux-mm/5d0358ab-8c47-2f5f-8e43-23b89d6a8e95@intel.com/ Changes for prctl(2) manual page (in the options section): PR_SET_VMA Sets an attribute specified in arg2 for virtual memory areas starting from the address specified in arg3 and spanning the size specified in arg4. arg5 specifies the value of the attribute to be set. Note that assigning an attribute to a virtual memory area might prevent it from being merged with adjacent virtual memory areas due to the difference in that attribute's value. Currently, arg2 must be one of: PR_SET_VMA_ANON_NAME Set a name for anonymous virtual memory areas. arg5 should be a pointer to a null-terminated string containing the name. The name length including null byte cannot exceed 80 bytes. If arg5 is NULL, the name of the appropriate anonymous virtual memory areas will be reset. The name can contain only printable ascii characters (including space), except '[',']','\','$' and '`'. This feature is available only if the kernel is built with the CONFIG_ANON_VMA_NAME option enabled. [surenb@google.com: docs: proc.rst: /proc/PID/maps: fix malformed table] Link: https://lkml.kernel.org/r/20211123185928.2513763-1-surenb@google.com [surenb: rebased over v5.15-rc6, replaced userpointer with a kernel copy, added input sanitization and CONFIG_ANON_VMA_NAME config. The bulk of the work here was done by Colin Cross, therefore, with his permission, keeping him as the author] Link: https://lkml.kernel.org/r/20211019215511.3771969-2-surenb@google.com Signed-off-by: Colin Cross <ccross@google.com> Signed-off-by: Suren Baghdasaryan <surenb@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Dave Hansen <dave.hansen@intel.com> Cc: David Rientjes <rientjes@google.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Hugh Dickins <hughd@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jan Glauber <jan.glauber@gmail.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: John Stultz <john.stultz@linaro.org> Cc: Mel Gorman <mgorman@suse.de> Cc: Minchan Kim <minchan@kernel.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rob Landley <rob@landley.net> Cc: "Serge E. Hallyn" <serge.hallyn@ubuntu.com> Cc: Shaohua Li <shli@fusionio.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
Venky Shankar
|
e1b9eb5076 |
doc: document new CephFS mount device syntax
Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com> |
||
|
Linus Torvalds
|
8834147f95 |
fscache rewrite
-----BEGIN PGP SIGNATURE-----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=ISJ6
-----END PGP SIGNATURE-----
Merge tag 'fscache-rewrite-20220111' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull fscache rewrite from David Howells:
"This is a set of patches that rewrites the fscache driver and the
cachefiles driver, significantly simplifying the code compared to
what's upstream, removing the complex operation scheduling and object
state machine in favour of something much smaller and simpler.
The series is structured such that the first few patches disable
fscache use by the network filesystems using it, remove the cachefiles
driver entirely and as much of the fscache driver as can be got away
with without causing build failures in the network filesystems.
The patches after that recreate fscache and then cachefiles,
attempting to add the pieces in a logical order. Finally, the
filesystems are reenabled and then the very last patch changes the
documentation.
[!] Note: I have dropped the cifs patch for the moment, leaving local
caching in cifs disabled. I've been having trouble getting that
working. I think I have it done, but it needs more testing (there
seem to be some test failures occurring with v5.16 also from
xfstests), so I propose deferring that patch to the end of the
merge window.
WHY REWRITE?
============
Fscache's operation scheduling API was intended to handle sequencing
of cache operations, which were all required (where possible) to run
asynchronously in parallel with the operations being done by the
network filesystem, whilst allowing the cache to be brought online and
offline and to interrupt service for invalidation.
With the advent of the tmpfile capacity in the VFS, however, an
opportunity arises to do invalidation much more simply, without having
to wait for I/O that's actually in progress: Cachefiles can simply
create a tmpfile, cut over the file pointer for the backing object
attached to a cookie and abandon the in-progress I/O, dismissing it
upon completion.
Future work here would involve using Omar Sandoval's vfs_link() with
AT_LINK_REPLACE[1] to allow an extant file to be displaced by a new
hard link from a tmpfile as currently I have to unlink the old file
first.
These patches can also simplify the object state handling as I/O
operations to the cache don't all have to be brought to a stop in
order to invalidate a file. To that end, and with an eye on to writing
a new backing cache model in the future, I've taken the opportunity to
simplify the indexing structure.
I've separated the index cookie concept from the file cookie concept
by C type now. The former is now called a "volume cookie" (struct
fscache_volume) and there is a container of file cookies. There are
then just the two levels. All the index cookie levels are collapsed
into a single volume cookie, and this has a single printable string as
a key. For instance, an AFS volume would have a key of something like
"afs,example.com,1000555", combining the filesystem name, cell name
and volume ID. This is freeform, but must not have '/' chars in it.
I've also eliminated all pointers back from fscache into the network
filesystem. This required the duplication of a little bit of data in
the cookie (cookie key, coherency data and file size), but it's not
actually that much. This gets rid of problems with making sure we keep
netfs data structures around so that the cache can access them.
These patches mean that most of the code that was in the drivers
before is simply gone and those drivers are now almost entirely new
code. That being the case, there doesn't seem any particular reason to
try and maintain bisectability across it. Further, there has to be a
point in the middle where things are cut over as there's a single
point everything has to go through (ie. /dev/cachefiles) and it can't
be in use by two drivers at once.
ISSUES YET OUTSTANDING
======================
There are some issues still outstanding, unaddressed by this patchset,
that will need fixing in future patchsets, but that don't stop this
series from being usable:
(1) The cachefiles driver needs to stop using the backing filesystem's
metadata to store information about what parts of the cache are
populated. This is not reliable with modern extent-based
filesystems.
Fixing this is deferred to a separate patchset as it involves
negotiation with the network filesystem and the VM as to how much
data to download to fulfil a read - which brings me on to (2)...
(2) NFS (and CIFS with the dropped patch) do not take account of how
the cache would like I/O to be structured to meet its granularity
requirements. Previously, the cache used page granularity, which
was fine as the network filesystems also dealt in page
granularity, and the backing filesystem (ext4, xfs or whatever)
did whatever it did out of sight. However, we now have folios to
deal with and the cache will now have to store its own metadata to
track its contents.
The change I'm looking at making for cachefiles is to store
content bitmaps in one or more xattrs and making a bit in the map
correspond to something like a 256KiB block. However, the size of
an xattr and the fact that they have to be read/updated in one go
means that I'm looking at covering 1GiB of data per 512-byte map
and storing each map in an xattr. Cachefiles has the potential to
grow into a fully fledged filesystem of its very own if I'm not
careful.
However, I'm also looking at changing things even more radically
and going to a different model of how the cache is arranged and
managed - one that's more akin to the way, say, openafs does
things - which brings me on to (3)...
(3) The way cachefilesd does culling is very inefficient for large
caches and it would be better to move it into the kernel if I can
as cachefilesd has to keep asking the kernel if it can cull a
file. Changing the way the backend works would allow this to be
addressed.
BITS THAT MAY BE CONTROVERSIAL
==============================
There are some bits I've added that may be controversial:
(1) I've provided a flag, S_KERNEL_FILE, that cachefiles uses to check
if a files is already being used by some other kernel service
(e.g. a duplicate cachefiles cache in the same directory) and
reject it if it is. This isn't entirely necessary, but it helps
prevent accidental data corruption.
I don't want to use S_SWAPFILE as that has other effects, but
quite possibly swapon() should set S_KERNEL_FILE too.
Note that it doesn't prevent userspace from interfering, though
perhaps it should. (I have made it prevent a marked directory from
being rmdir-able).
(2) Cachefiles wants to keep the backing file for a cookie open whilst
we might need to write to it from network filesystem writeback.
The problem is that the network filesystem unuses its cookie when
its file is closed, and so we have nothing pinning the cachefiles
file open and it will get closed automatically after a short time
to avoid EMFILE/ENFILE problems.
Reopening the cache file, however, is a problem if this is being
done due to writeback triggered by exit(). Some filesystems will
oops if we try to open a file in that context because they want to
access current->fs or suchlike.
To get around this, I added the following:
(A) An inode flag, I_PINNING_FSCACHE_WB, to be set on a network
filesystem inode to indicate that we have a usage count on the
cookie caching that inode.
(B) A flag in struct writeback_control, unpinned_fscache_wb, that
is set when __writeback_single_inode() clears the last dirty
page from i_pages - at which point it clears
I_PINNING_FSCACHE_WB and sets this flag.
This has to be done here so that clearing I_PINNING_FSCACHE_WB
can be done atomically with the check of PAGECACHE_TAG_DIRTY
that clears I_DIRTY_PAGES.
(C) A function, fscache_set_page_dirty(), which if it is not set,
sets I_PINNING_FSCACHE_WB and calls fscache_use_cookie() to
pin the cache resources.
(D) A function, fscache_unpin_writeback(), to be called by
->write_inode() to unuse the cookie.
(E) A function, fscache_clear_inode_writeback(), to be called when
the inode is evicted, before clear_inode() is called. This
cleans up any lingering I_PINNING_FSCACHE_WB.
The network filesystem can then use these tools to make sure that
fscache_write_to_cache() can write locally modified data to the
cache as well as to the server.
For the future, I'm working on write helpers for netfs lib that
should allow this facility to be removed by keeping track of the
dirty regions separately - but that's incomplete at the moment and
is also going to be affected by folios, one way or another, since
it deals with pages"
Link: https://lore.kernel.org/all/510611.1641942444@warthog.procyon.org.uk/
Tested-by: Dominique Martinet <asmadeus@codewreck.org> # 9p
Tested-by: kafs-testing@auristor.com # afs
Tested-by: Jeff Layton <jlayton@kernel.org> # ceph
Tested-by: Dave Wysochanski <dwysocha@redhat.com> # nfs
Tested-by: Daire Byrne <daire@dneg.com> # nfs
* tag 'fscache-rewrite-20220111' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: (67 commits)
9p, afs, ceph, nfs: Use current_is_kswapd() rather than gfpflags_allow_blocking()
fscache: Add a tracepoint for cookie use/unuse
fscache: Rewrite documentation
ceph: add fscache writeback support
ceph: conversion to new fscache API
nfs: Implement cache I/O by accessing the cache directly
nfs: Convert to new fscache volume/cookie API
9p: Copy local writes to the cache when writing to the server
9p: Use fscache indexing rewrite and reenable caching
afs: Skip truncation on the server of data we haven't written yet
afs: Copy local writes to the cache when writing to the server
afs: Convert afs to use the new fscache API
fscache, cachefiles: Display stat of culling events
fscache, cachefiles: Display stats of no-space events
cachefiles: Allow cachefiles to actually function
fscache, cachefiles: Store the volume coherency data
cachefiles: Implement the I/O routines
cachefiles: Implement cookie resize for truncate
cachefiles: Implement begin and end I/O operation
cachefiles: Implement backing file wrangling
...
|
||
|
Linus Torvalds
|
8975f89748 |
fuse update for 5.17
-----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQSQHSd0lITzzeNWNm3h3BK/laaZPAUCYdw8xgAKCRDh3BK/laaZ PFy3AQCHSltzy6f234CcsFk3mtJn0im0tDbRoEYFD731JOR1YAD9HQKtJRn/sMCF r0PnZnOWJ35RWB3o8uEqptsgrZXJkQo= =HosR -----END PGP SIGNATURE----- Merge tag 'fuse-update-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse Pull fuse updates from Miklos Szeredi: - Fix a regression introduced in 5.15 - Extend the size of the FUSE_INIT request to accommodate for more flags. There's a slight possibility of a regression for obscure fuse servers; if this happens, then more complexity will need to be added to the protocol - Allow the DAX property to be controlled by the server on a per-inode basis in virtiofs - Allow sending security context to the server when creating a file or directory * tag 'fuse-update-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: Documentation/filesystem/dax: DAX on virtiofs fuse: mark inode DONT_CACHE when per inode DAX hint changes fuse: negotiate per inode DAX in FUSE_INIT fuse: enable per inode DAX fuse: support per inode DAX in fuse protocol fuse: make DAX mount option a tri-state fuse: add fuse_should_enable_dax() helper fuse: Pass correct lend value to filemap_write_and_wait_range() fuse: send security context of inode on file fuse: extend init flags |
||
|
Linus Torvalds
|
9149fe8ba7 |
Changes since last update:
- add sysfs interface and a sysfs node to control sync decompression; - add tail-packing inline support for compressed files; - get rid of erofs_get_meta_page(). -----BEGIN PGP SIGNATURE----- iIcEABYIAC8WIQThPAmQN9sSA0DVxtI5NzHcH7XmBAUCYduH/BEceGlhbmdAa2Vy bmVsLm9yZwAKCRA5NzHcH7XmBNPdAP9hKomD1hRiFeCWlLA1nDXYkqGbbt6+D3HT cm4G7DgVBAD+O+RWv6JVYg1zAAFlKmxqEKEfoDLKI65wAjH1V/h/dQE= =cEam -----END PGP SIGNATURE----- Merge tag 'erofs-for-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs Pull erofs updates from Gao Xiang: "In this cycle, tail-packing data inline for compressed files is now supported so that tail pcluster can be stored and read together with inode metadata in order to save data I/O and storage space. In addition to that, to prepare for the upcoming subpage, folio and fscache features, we also introduce meta buffers to get rid of erofs_get_meta_page() since it was too close to the page itself. In addition, in order to show supported kernel features and control sync decompression strategy, new sysfs nodes are introduced in this cycle as well. Summary: - add sysfs interface and a sysfs node to control sync decompression - add tail-packing inline support for compressed files - get rid of erofs_get_meta_page()" * tag 'erofs-for-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs: erofs: use meta buffers for zmap operations erofs: use meta buffers for xattr operations erofs: use meta buffers for super operations erofs: use meta buffers for inode operations erofs: introduce meta buffer operations erofs: add on-disk compressed tail-packing inline support erofs: support inline data decompression erofs: support unaligned data decompression erofs: introduce z_erofs_fixup_insize erofs: tidy up z_erofs_lz4_decompress erofs: clean up erofs_map_blocks tracepoints erofs: Replace zero-length array with flexible-array member erofs: add sysfs node to control sync decompression strategy erofs: add sysfs interface erofs: rename lz4_0pading to zero_padding |
||
|
Linus Torvalds
|
5dfbfe71e3 |
fs.idmapped.v5.17
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCYdRCkgAKCRCRxhvAZXjc olrvAQCdp8LWkT8TauJSl8wmUm3mZhNy+5+fXuCUSwe3PyUtTQEAq4fxm41JpG8u WCZTrrxVhaXwgUY3aWzzeQnLCZjtEQw= =woqV -----END PGP SIGNATURE----- Merge tag 'fs.idmapped.v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux Pull fs idmapping updates from Christian Brauner: "This contains the work to enable the idmapping infrastructure to support idmapped mounts of filesystems mounted with an idmapping. In addition this contains various cleanups that avoid repeated open-coding of the same functionality and simplify the code in quite a few places. We also finish the renaming of the mapping helpers we started a few kernel releases back and move them to a dedicated header to not continue polluting the fs header needlessly with low-level idmapping helpers. With this series the fs header only contains idmapping helpers that interact with fs objects. Currently we only support idmapped mounts for filesystems mounted without an idmapping themselves. This was a conscious decision mentioned in multiple places (cf. [1]). As explained at length in [3] it is perfectly fine to extend support for idmapped mounts to filesystem's mounted with an idmapping should the need arise. The need has been there for some time now (cf. [2]). Before we can port any filesystem that is mountable with an idmapping to support idmapped mounts in the coming cycles, we need to first extend the mapping helpers to account for the filesystem's idmapping. This again, is explained at length in our documentation at [3] and also in the individual commit messages so here's an overview. Currently, the low-level mapping helpers implement the remapping algorithms described in [3] in a simplified manner as we could rely on the fact that all filesystems supporting idmapped mounts are mounted without an idmapping. In contrast, filesystems mounted with an idmapping are very likely to not use an identity mapping and will instead use a non-identity mapping. So the translation step from or into the filesystem's idmapping in the remapping algorithm cannot be skipped for such filesystems. Non-idmapped filesystems and filesystems not supporting idmapped mounts are unaffected by this change as the remapping algorithms can take the same shortcut as before. If the low-level helpers detect that they are dealing with an idmapped mount but the underlying filesystem is mounted without an idmapping we can rely on the previous shortcut and can continue to skip the translation step from or into the filesystem's idmapping. And of course, if the low-level helpers detect that they are not dealing with an idmapped mount they can simply return the relevant id unchanged; no remapping needs to be performed at all. These checks guarantee that only the minimal amount of work is performed. As before, if idmapped mounts aren't used the low-level helpers are idempotent and no work is performed at all" Link: |
||
|
David Howells
|
e0484344c0 |
fscache: Rewrite documentation
Rewrite the fscache documentation. Changes ======= ver #3: - The volume coherency data is now an arbitrarily-sized blob, not a u64. ver #2: - Put quoting around some bits of C being referred to in the docs[1]. - Stripped the markup off the ref to the netfs lib doc[2]. Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> cc: linux-cachefs@redhat.com Link: https://lore.kernel.org/r/20211130175119.63d0e7aa@canb.auug.org.au/ [1] Link: https://lore.kernel.org/r/20211130162311.105fcfa5@canb.auug.org.au/ [2] Link: https://lore.kernel.org/r/163819672252.215744.15454333549935901588.stgit@warthog.procyon.org.uk/ # v1 Link: https://lore.kernel.org/r/163906986754.143852.17703291789683936950.stgit@warthog.procyon.org.uk/ # v2 Link: https://lore.kernel.org/r/163967193834.1823006.15991526817786159772.stgit@warthog.procyon.org.uk/ # v3 Link: https://lore.kernel.org/r/164021585970.640689.3162537597817521032.stgit@warthog.procyon.org.uk/ # v4 |
||
Chao Yu
|
3e0203893e |
f2fs: support fault injection to f2fs_trylock_op()
f2fs: support fault injection for f2fs_trylock_op() This patch supports to inject fault into f2fs_trylock_op(). Usage: a) echo 65536 > /sys/fs/f2fs/<dev>/inject_type or b) mount -o fault_type=65536 <dev> <mountpoint> Signed-off-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> |
||
Zhiqiang Liu
|
fe1cf923da |
doc: fs: remove bdev_try_to_free_page related doc
In commit
|
||
Jeffle Xu
|
073c3ab6ae |
Documentation/filesystem/dax: DAX on virtiofs
Record DAX on virtiofs and the semantic difference with that on ext4 and xfs. Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com> Reviewed-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> |
||
Huang Jianan
|
168e9a7620 |
erofs: add sysfs interface
Add sysfs interface to configure erofs related parameters later. Link: https://lore.kernel.org/r/20211201145436.4357-1-huangjianan@oppo.com Reviewed-by: Chao Yu <chao@kernel.org> Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com> Signed-off-by: Huang Jianan <huangjianan@oppo.com> Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com> |
||
Christian Brauner
|
8cc5c54de4
|
docs: update mapping documentation
Now that we implement the full remapping algorithms described in our documentation remove the section about shortcircuting them. Link: https://lore.kernel.org/r/20211123114227.3124056-6-brauner@kernel.org (v1) Link: https://lore.kernel.org/r/20211130121032.3753852-6-brauner@kernel.org (v2) Link: https://lore.kernel.org/r/20211203111707.3901969-6-brauner@kernel.org Cc: Seth Forshee <sforshee@digitalocean.com> Cc: Amir Goldstein <amir73il@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> CC: linux-fsdevel@vger.kernel.org Reviewed-by: Seth Forshee <sforshee@digitalocean.com> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> |
||
|
David Howells
|
ddca5b0eba |
netfs: Adjust docs after foliation
Adjust the netfslib docs in light of the foliation changes. Also un-kdoc-mark netfs_skip_folio_read() since it's internal and isn't part of the API. Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> cc: Matthew Wilcox <willy@infradead.org> cc: linux-cachefs@redhat.com cc: linux-mm@kvack.org Link: https://lore.kernel.org/r/163706992597.3179783.18360472879717076435.stgit@warthog.procyon.org.uk/ Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
Salvatore Bonaccorso
|
2d239f0f6a |
docs: filesystem: cifs: ksmbd: Fix small layout issues
In some senteces there were missing spaces between words. Fix wording in item to show which prints are enabled and add a space beween the cat command and its argument. Cc: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Steve French <sfrench@samba.org> CC: Hyunchul Lee <hyc.lee@gmail.com> Cc: linux-cifs@vger.kernel.org Acked-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Salvatore Bonaccorso <carnil@debian.org> Signed-off-by: Steve French <stfrench@microsoft.com> |
||
Wasin Thonkaew
|
53b606fa29 |
docs: filesystems: Fix grammatical error "with" to "which"
Signed-off-by: Wasin Thonkaew <wasin@wasin.io> Signed-off-by: Jonathan Corbet <corbet@lwn.net> |
||
|
Linus Torvalds
|
5664896ba2 |
f2fs-for-5.16-rc1
In this cycle, we've applied relatively small number of patches which fix subtle
corner cases mainly, while introducing a new mount option to be able to fragment
the disk intentionally for performance tests.
Enhancement:
- add a mount option to fragmente on-disk layout to understand the performance
- support direct IO for multi-partitions
- add a fault injection of dquot_initialize
Bug fix:
- address some lockdep complaints
- fix a deadlock issue with quota
- fix a memory tuning condition
- fix compression condition to improve the ratio
- fix disabling compression on the non-empty compressed file
- invalidate cached pages before IPU/DIO writes
And, we've added some minor clean-ups as usual.
-----BEGIN PGP SIGNATURE-----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=KGQ3
-----END PGP SIGNATURE-----
Merge tag 'f2fs-for-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"In this cycle, we've applied relatively small number of patches which
fix subtle corner cases mainly, while introducing a new mount option
to be able to fragment the disk intentionally for performance tests.
Enhancements:
- add a mount option to fragmente on-disk layout to understand the
performance
- support direct IO for multi-partitions
- add a fault injection of dquot_initialize
Bug fixes:
- address some lockdep complaints
- fix a deadlock issue with quota
- fix a memory tuning condition
- fix compression condition to improve the ratio
- fix disabling compression on the non-empty compressed file
- invalidate cached pages before IPU/DIO writes
And, we've added some minor clean-ups as usual"
* tag 'f2fs-for-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs:
f2fs: fix UAF in f2fs_available_free_memory
f2fs: invalidate META_MAPPING before IPU/DIO write
f2fs: support fault injection for dquot_initialize()
f2fs: fix incorrect return value in f2fs_sanity_check_ckpt()
f2fs: compress: disallow disabling compress on non-empty compressed file
f2fs: compress: fix overwrite may reduce compress ratio unproperly
f2fs: multidevice: support direct IO
f2fs: introduce fragment allocation mode mount option
f2fs: replace snprintf in show functions with sysfs_emit
f2fs: include non-compressed blocks in compr_written_block
f2fs: fix wrong condition to trigger background checkpoint correctly
f2fs: fix to use WHINT_MODE
f2fs: fix up f2fs_lookup tracepoints
f2fs: set SBI_NEED_FSCK flag when inconsistent node block found
f2fs: introduce excess_dirty_threshold()
f2fs: avoid attaching SB_ACTIVE flag during mount
f2fs: quota: fix potential deadlock
f2fs: should use GFP_NOFS for directory inodes
|
||
|
Linus Torvalds
|
38764c7340 |
A slow cycle for nfsd: mainly cleanup, including Neil's patch dropping
support for a filehandle format deprecated 20 years ago, and further
xdr-related cleanup from Chuck.
-----BEGIN PGP SIGNATURE-----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=yKBl
-----END PGP SIGNATURE-----
Merge tag 'nfsd-5.16' of git://linux-nfs.org/~bfields/linux
Pull nfsd updates from Bruce Fields:
"A slow cycle for nfsd: mainly cleanup, including Neil's patch dropping
support for a filehandle format deprecated 20 years ago, and further
xdr-related cleanup from Chuck"
* tag 'nfsd-5.16' of git://linux-nfs.org/~bfields/linux: (26 commits)
nfsd4: remove obselete comment
nfsd: document server-to-server-copy parameters
NFSD:fix boolreturn.cocci warning
nfsd: update create verifier comment
SUNRPC: Change return value type of .pc_encode
SUNRPC: Replace the "__be32 *p" parameter to .pc_encode
NFSD: Save location of NFSv4 COMPOUND status
SUNRPC: Change return value type of .pc_decode
SUNRPC: Replace the "__be32 *p" parameter to .pc_decode
SUNRPC: De-duplicate .pc_release() call sites
SUNRPC: Simplify the SVC dispatch code path
SUNRPC: Capture value of xdr_buf::page_base
SUNRPC: Add trace event when alloc_pages_bulk() makes no progress
svcrdma: Split svcrmda_wc_{read,write} tracepoints
svcrdma: Split the svcrdma_wc_send() tracepoint
svcrdma: Split the svcrdma_wc_receive() tracepoint
NFSD: Have legacy NFSD WRITE decoders use xdr_stream_subsegment()
SUNRPC: xdr_stream_subsegment() must handle non-zero page_bases
NFSD: Initialize pointer ni with NULL and not plain integer 0
NFSD: simplify struct nfsfh
...
|
||
|
Linus Torvalds
|
624ad333d4 |
This is a relatively unexciting cycle for documentation.
- Some small scripts/kerneldoc fixes - More Chinese translation work, but at a much reduced rate. - The tip-tree maintainer's handbook ...plus the usual array of build fixes, typo fixes, etc. -----BEGIN PGP SIGNATURE----- iQFDBAABCAAtFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAmGBqbYPHGNvcmJldEBs d24ubmV0AAoJEBdDWhNsDH5YzMoH+wQwUbILvf4FB9h6l0qhbPnvcLMJtDiuIGSu Ivfc1t+Vh7/waehaYfn9erCNps6oE13Arsy0DDFZcr6vbjXFO5clFoh5jvSJsk+G zTXzZNB99SoJcZw9r8F7aJDbQNJfSXoyTTOg1mSeXNo+nkBFTSWO7QwCx5M2obaT 76+r8HQpnEYmrGePsOXriV4aOP+yJxuGgkPb+VPlPtQhA7v6dzo5hmoh5tPIzCLd Fz8ek4aAm9sPEtu1UUoA+7MALZHTFwPv6aSAuyVeNfF/UBL6M4iAwusQyLdPFfoj JPO7f+1h6a8jKTfTWGjPI3o33DtU/8nc6DgnuBaXBTKW8Dl5Exk= =q37Q -----END PGP SIGNATURE----- Merge tag 'docs-5.16' of git://git.lwn.net/linux Pull documentation updates from Jonathan Corbet: "This is a relatively unexciting cycle for documentation. - Some small scripts/kerneldoc fixes - More Chinese translation work, but at a much reduced rate. - The tip-tree maintainer's handbook ...plus the usual array of build fixes, typo fixes, etc" * tag 'docs-5.16' of git://git.lwn.net/linux: (53 commits) kernel-doc: support DECLARE_PHY_INTERFACE_MASK() docs/zh_CN: add core-api xarray translation docs/zh_CN: add core-api assoc_array translation speakup: Fix typo in documentation "boo" -> "boot" docs: submitting-patches: make section about the Link: tag more explicit docs: deprecated.rst: Clarify open-coded arithmetic with literals scripts: documentation-file-ref-check: fix bpf selftests path scripts: documentation-file-ref-check: ignore hidden files coding-style.rst: trivial: fix location of driver model macros docs: f2fs: fix text alignment docs/zh_CN add PCI pci.rst translation docs/zh_CN add PCI index.rst translation docs: translations: zh_CN: memory-hotplug.rst: fix a typo docs: translations: zn_CN: irq-affinity.rst: add a missing extension block: add documentation for inflight scripts: kernel-doc: Ignore __alloc_size() attribute docs: pdfdocs: Adjust \headheight for fancyhdr docs: UML: user_mode_linux_howto_v2 edits docs: use the lore redirector everywhere docs: proc.rst: mountinfo: align columns ... |
||
|
Linus Torvalds
|
67a135b80e |
Changes since last update:
- support multiple devices for multi-layer container images; - support the secondary compression head; - support readmore decompression strategy; - support new LZMA algorithm (specifically called MicroLZMA); - some bugfixes & cleanups. -----BEGIN PGP SIGNATURE----- iIcEABYIAC8WIQThPAmQN9sSA0DVxtI5NzHcH7XmBAUCYX8j7hEceGlhbmdAa2Vy bmVsLm9yZwAKCRA5NzHcH7XmBE+SAQChAmAUav03OQujm8PvVNX7VUGusGNvww8E qu5+zasC8wEArypW2Z75ZZ3IZNPCk6QWFlaC2I5Xnz7NNl0OGPKOCAg= =DZQ4 -----END PGP SIGNATURE----- Merge tag 'erofs-for-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs Pull erofs updates from Gao Xiang: "There are some new features available for this cycle. Firstly, EROFS LZMA algorithm support, specifically called MicroLZMA, is available as an option for embedded devices, LiveCDs and/or as the secondary auxiliary compression algorithm besides the primary algorithm in one file. In order to better support the LZMA fixed-sized output compression, especially for 4KiB pcluster size (which has lowest memory pressure thus useful for memory-sensitive scenarios), Lasse introduced a new LZMA header/container format called MicroLZMA to minimize the original LZMA1 header (for example, we don't need to waste 4-byte dictionary size and another 8-byte uncompressed size, which can be calculated by fs directly, for each pcluster) and enable EROFS fixed-sized output compression. Note that MicroLZMA can also be later used by other things in addition to EROFS too where wasting minimal amount of space for headers is important and it can be only compiled by enabling XZ_DEC_MICROLZMA. MicroLZMA has been supported by the latest upstream XZ embedded [1] & XZ utils [2], apply the latest related XZ embedded upstream patches by the XZ author Lasse here. Secondly, multiple device is also supported in this cycle, which is designed for multi-layer container images. By working together with inter-layer data deduplication and compression, we can achieve the next high-performance container image solution. Our team will announce the new Nydus container image service [3] implementation with new RAFS v6 (EROFS-compatible) format in Open Source Summit 2021 China [4] soon. Besides, the secondary compression head support and readmore decompression strategy are also included in this cycle. There are also some minor bugfixes and cleanups, as always. Summary: - support multiple devices for multi-layer container images; - support the secondary compression head; - support readmore decompression strategy; - support new LZMA algorithm (specifically called MicroLZMA); - some bugfixes & cleanups" * tag 'erofs-for-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs: erofs: don't trigger WARN() when decompression fails erofs: get rid of ->lru usage erofs: lzma compression support erofs: rename some generic methods in decompressor lib/xz, lib/decompress_unxz.c: Fix spelling in comments lib/xz: Add MicroLZMA decoder lib/xz: Move s->lzma.len = 0 initialization to lzma_reset() lib/xz: Validate the value before assigning it to an enum variable lib/xz: Avoid overlapping memcpy() with invalid input with in-place decompression erofs: introduce readmore decompression strategy erofs: introduce the secondary compression head erofs: get compression algorithms directly on mapping erofs: add multiple device support erofs: decouple basic mount options from fs_context erofs: remove the fast path of per-CPU buffer decompression |
||
|
Linus Torvalds
|
cd3e8ea847 |
fscrypt updates for 5.16
Some cleanups for fs/crypto/: - Allow 256-bit master keys with AES-256-XTS - Improve documentation and comments - Remove unneeded field fscrypt_operations::max_namelen -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQSacvsUNc7UX4ntmEPzXCl4vpKOKwUCYX8U4hQcZWJpZ2dlcnNA Z29vZ2xlLmNvbQAKCRDzXCl4vpKOKyXYAP0d7BNuKsMyw6qlzLMxbaO5wdTg2HaD 04ApVeHM6qp7IQEA/Ve2Mr+BcPOZ7E6io8haZtXs0MrRMYeessKWcWMCdQ0= =2WNZ -----END PGP SIGNATURE----- Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt Pull fscrypt updates from Eric Biggers: "Some cleanups for fs/crypto/: - Allow 256-bit master keys with AES-256-XTS - Improve documentation and comments - Remove unneeded field fscrypt_operations::max_namelen" * tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt: fscrypt: improve a few comments fscrypt: allow 256-bit master keys with AES-256-XTS fscrypt: improve documentation for inline encryption fscrypt: clean up comments in bio.c fscrypt: remove fscrypt_operations::max_namelen |
||
|
Linus Torvalds
|
9ac211426f |
File locking changes for v5.16
-----BEGIN PGP SIGNATURE----- iQJHBAABCAAxFiEES8DXskRxsqGE6vXTAA5oQRlWghUFAmF77NQTHGpsYXl0b25A a2VybmVsLm9yZwAKCRAADmhBGVaCFfP9D/wN8rCAPA2J6SpBjdJXSpSQS4PoAOqC Z002bOc7sq/zg2cWk+pX1aOR/+wUpk+PvaQdyvfO+o4TVCpsTOklRh/yfYuOkJdP PoINUR7vb43/CGqd04YI45+pxOFMJk9JoLkNha0uIY4ukXdt9mA6u/+qBEDboyDQ Jbn1JGitRc9WYaE7BV26ba0l+Deb5h2/4c1DiDlsgmLkDPhpowkOznovUCkBnH7H bfwlssjZ5P0K5ttZDw6VlkC2xE+Yr56BsEco2bXO42LwUHOx6r6ZNp04rh9zh1Zp hFPybgU+ur17EOOmBbCq8aHZqRRcjQQDH/rZ1heHSOfTrEWWth1xNjmeewSgRZHL 0oMi3yIJPwvuDBQPEQg0VD87k5Z8xbRPql6eM6GeGxDZvzXWqqYKW2OYXtNxG91m bGvu2OOGkdF/4WGYBixdjUQb5KjcOqdIFkq3/oHfLQ+cS2uc6eOfnCdxa7cTnTdd BcFDgZmWQDLFs6/DIbwUI0KWMAiLFMZnZACE937JvlE74EGiHu47JMzwcU15J6zO VD0Oq0XsWQN+TgY2RnjuTFqm6DTpbrkgw88sNDr5g3jZbgJZiZ/r/3M55lcBVWvk PFT4fjKhD1mT6/SscAAmOxUKUeDbN7EktiRsZmH9C2sUCERufDb/cmY/RYZ00C4t 01ovPjs7VukS/w== =bcaq -----END PGP SIGNATURE----- Merge tag 'locks-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux Pull file locking updates from Jeff Layton: "Most of this is just follow-on cleanup work of documentation and comments from the mandatory locking removal in v5.15. The only real functional change is that LOCK_MAND flock() support is also being removed, as it has basically been non-functional since the v2.5 days" * tag 'locks-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux: fs: remove leftover comments from mandatory locking removal locks: remove changelog comments docs: fs: locks.rst: update comment about mandatory file locking Documentation: remove reference to now removed mandatory-locking doc locks: remove LOCK_MAND flock lock support |
||
|
Linus Torvalds
|
49f8275c7d |
Memory folios
Add memory folios, a new type to represent either order-0 pages or the head page of a compound page. This should be enough infrastructure to support filesystems converting from pages to folios. -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEejHryeLBw/spnjHrDpNsjXcpgj4FAmF9uI0ACgkQDpNsjXcp gj7MUAf/R7LCZ+xFiIedw7SAgb/DGK0C9uVjuBEIZgAw21ZUw/GuPI6cuKBMFGGf rRcdtlvMpwi7yZJcoNXxaqU/xPaaJMjf2XxscIvYJP1mjlZVuwmP9dOx0neNvWOc T+8lqR6c1TLl82lpqIjGFLwvj2eVowq2d3J5jsaIJFd4odmmYVInrhJXOzC/LQ54 Niloj5ksehf+KUIRLDz7ycppvIHhlVsoAl0eM2dWBAtL0mvT7Nyn/3y+vnMfV2v3 Flb4opwJUgTJleYc16oxTn9svT2yS8q2uuUemRDLW8ABghoAtH3fUUk43RN+5Krd LYCtbeawtkikPVXZMfWybsx5vn0c3Q== =7SBe -----END PGP SIGNATURE----- Merge tag 'folio-5.16' of git://git.infradead.org/users/willy/pagecache Pull memory folios from Matthew Wilcox: "Add memory folios, a new type to represent either order-0 pages or the head page of a compound page. This should be enough infrastructure to support filesystems converting from pages to folios. The point of all this churn is to allow filesystems and the page cache to manage memory in larger chunks than PAGE_SIZE. The original plan was to use compound pages like THP does, but I ran into problems with some functions expecting only a head page while others expect the precise page containing a particular byte. The folio type allows a function to declare that it's expecting only a head page. Almost incidentally, this allows us to remove various calls to VM_BUG_ON(PageTail(page)) and compound_head(). This converts just parts of the core MM and the page cache. For 5.17, we intend to convert various filesystems (XFS and AFS are ready; other filesystems may make it) and also convert more of the MM and page cache to folios. For 5.18, multi-page folios should be ready. The multi-page folios offer some improvement to some workloads. The 80% win is real, but appears to be an artificial benchmark (postgres startup, which isn't a serious workload). Real workloads (eg building the kernel, running postgres in a steady state, etc) seem to benefit between 0-10%. I haven't heard of any performance losses as a result of this series. Nobody has done any serious performance tuning; I imagine that tweaking the readahead algorithm could provide some more interesting wins. There are also other places where we could choose to create large folios and currently do not, such as writes that are larger than PAGE_SIZE. I'd like to thank all my reviewers who've offered review/ack tags: Christoph Hellwig, David Howells, Jan Kara, Jeff Layton, Johannes Weiner, Kirill A. Shutemov, Michal Hocko, Mike Rapoport, Vlastimil Babka, William Kucharski, Yu Zhao and Zi Yan. I'd also like to thank those who gave feedback I incorporated but haven't offered up review tags for this part of the series: Nick Piggin, Mel Gorman, Ming Lei, Darrick Wong, Ted Ts'o, John Hubbard, Hugh Dickins, and probably a few others who I forget" * tag 'folio-5.16' of git://git.infradead.org/users/willy/pagecache: (90 commits) mm/writeback: Add folio_write_one mm/filemap: Add FGP_STABLE mm/filemap: Add filemap_get_folio mm/filemap: Convert mapping_get_entry to return a folio mm/filemap: Add filemap_add_folio() mm/filemap: Add filemap_alloc_folio mm/page_alloc: Add folio allocation functions mm/lru: Add folio_add_lru() mm/lru: Convert __pagevec_lru_add_fn to take a folio mm: Add folio_evictable() mm/workingset: Convert workingset_refault() to take a folio mm/filemap: Add readahead_folio() mm/filemap: Add folio_mkwrite_check_truncate() mm/filemap: Add i_blocks_per_folio() mm/writeback: Add folio_redirty_for_writepage() mm/writeback: Add folio_account_redirty() mm/writeback: Add folio_clear_dirty_for_io() mm/writeback: Add folio_cancel_dirty() mm/writeback: Add folio_account_cleaned() mm/writeback: Add filemap_dirty_folio() ... |
||
|
Chao Yu
|
10a2687856 |
f2fs: support fault injection for dquot_initialize()
This patch adds a new function f2fs_dquot_initialize() to wrap dquot_initialize(), and it supports to inject fault into f2fs_dquot_initialize() to simulate inner failure occurs in dquot_initialize(). Usage: a) echo 65536 > /sys/fs/f2fs/<dev>/inject_type or b) mount -o fault_type=65536 <dev> <mountpoint> Signed-off-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> |
||
Daeho Jeong
|
6691d940b0 |
f2fs: introduce fragment allocation mode mount option
Added two options into "mode=" mount option to make it possible for developers to simulate filesystem fragmentation/after-GC situation itself. The developers use these modes to understand filesystem fragmentation/after-GC condition well, and eventually get some insights to handle them better. "fragment:segment": f2fs allocates a new segment in ramdom position. With this, we can simulate the after-GC condition. "fragment:block" : We can scatter block allocation with "max_fragment_chunk" and "max_fragment_hole" sysfs nodes. f2fs will allocate 1..<max_fragment_chunk> blocks in a chunk and make a hole in the length of 1..<max_fragment_hole> by turns in a newly allocated free segment. Plus, this mode implicitly enables "fragment:segment" option for more randomness. Reviewed-by: Chao Yu <chao@kernel.org> Signed-off-by: Daeho Jeong <daehojeong@google.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> |
||
Fengnan Chang
|
8c3b018874 |
docs: f2fs: fix text alignment
The docs build was generating this warning:
Documentation/filesystems/f2fs.rst:306: WARNING: Block quote ends without a blank line; unexpected unindent.
Remove the extra white space that was confusing sphinx.
Fixes:
|
||
Mauro Carvalho Chehab
|
f7c9ee0c72 |
docs: fs: locks.rst: update comment about mandatory file locking
The mandatory file locking got removed due to its problems, but
the fs locks documentation still points to it.
Update the text there, informing that it was removed on Kernel
5.14.
Fixes:
|
||
Gao Xiang
|
dfeab2e95a |
erofs: add multiple device support
In order to support multi-layer container images, add multiple device feature to EROFS. Two ways are available to use for now: - Devices can be mapped into 32-bit global block address space; - Device ID can be specified with the chunk indexes format. Note that it assumes no extent would cross device boundary and mkfs should take care of it seriously. In the future, a dedicated device manager could be introduced then thus extra devices can be automatically scanned by UUID as well. Link: https://lore.kernel.org/r/20211014081010.43485-1-hsiangkao@linux.alibaba.com Reviewed-by: Chao Yu <chao@kernel.org> Reviewed-by: Liu Bo <bo.liu@linux.alibaba.com> Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com> |
||
|
Linus Torvalds
|
86a44e9067 |
Fixed xfstests generic/016 generic/021 generic/022 generic/041 generic/274 generic/423,
some memory leaks and panic. Also many minor fixes.
-----BEGIN PGP SIGNATURE-----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=QUnM
-----END PGP SIGNATURE-----
Merge tag 'ntfs3_for_5.15' of git://github.com/Paragon-Software-Group/linux-ntfs3
Pull ntfs3 fixes from Konstantin Komarov:
"Use the new api for mounting as requested by Christoph.
Also fixed:
- some memory leaks and panic
- xfstests (tested on x86_64) generic/016 generic/021 generic/022
generic/041 generic/274 generic/423
- some typos, wrong returned error codes, dead code, etc"
* tag 'ntfs3_for_5.15' of git://github.com/Paragon-Software-Group/linux-ntfs3: (70 commits)
fs/ntfs3: Check for NULL pointers in ni_try_remove_attr_list
fs/ntfs3: Refactor ntfs_read_mft
fs/ntfs3: Refactor ni_parse_reparse
fs/ntfs3: Refactor ntfs_create_inode
fs/ntfs3: Refactor ntfs_readlink_hlp
fs/ntfs3: Rework ntfs_utf16_to_nls
fs/ntfs3: Fix memory leak if fill_super failed
fs/ntfs3: Keep prealloc for all types of files
fs/ntfs3: Remove unnecessary functions
fs/ntfs3: Forbid FALLOC_FL_PUNCH_HOLE for normal files
fs/ntfs3: Refactoring of ntfs_set_ea
fs/ntfs3: Remove locked argument in ntfs_set_ea
fs/ntfs3: Use available posix_acl_release instead of ntfs_posix_acl_release
fs/ntfs3: Check for NULL if ATTR_EA_INFO is incorrect
fs/ntfs3: Refactoring of ntfs_init_from_boot
fs/ntfs3: Reject mount if boot's cluster size < media sector size
fs/ntfs3: Refactoring lock in ntfs_init_acl
fs/ntfs3: Change posix_acl_equiv_mode to posix_acl_update_mode
fs/ntfs3: Pass flags to ntfs_set_ea in ntfs_set_acl_ex
fs/ntfs3: Refactor ntfs_get_acl_ex for better readability
...
|