* [GIT PULL] vfs misc
@ 2024-03-08 10:09 Christian Brauner
2024-03-11 18:33 ` pr-tracker-bot
0 siblings, 1 reply; 8+ messages in thread
From: Christian Brauner @ 2024-03-08 10:09 UTC (permalink / raw)
To: Linus Torvalds; +Cc: Christian Brauner, linux-fsdevel, linux-kernel
Hey Linus,
/* Summary */
This contains the usual miscellaneous features, cleanups, and fixes for vfs and
individual fses.
Features
========
* Support idmapped mounts for hugetlbfs.
* Add RWF_NOAPPEND flag for pwritev2(). This allows to fix a bug where
the passed offset is ignored if the file is O_APPEND. The new flag
allows a caller to enforce that the offset is honored to conform to
posix even if the file was opened in append mode.
* Move i_mmap_rwsem in struct address_space to avoid false sharing
between i_mmap and i_mmap_rwsem.
* Convert efs, qnx4, and coda to use the new mount api.
* Add a generic is_dot_dotdot() helper that's used by various
filesystems and the VFS code instead of open-coding it mutliple times.
* Recently we've added stable offsets which allows stable ordering
when iterating directories exported through NFS on e.g., tmpfs
filesystems. Originally an xarray was used for the offset map but that
caused slab fragmentation issues over time. Tis switches the offset
map to the maple tree which has a dense mode that handles this
scenario a lot better. Includes tests.
* Finally merge the case-insensitive improvement series Gabriel has been
working on for a long time. This cleanly propagates case insensitive
operations through ->s_d_op which in turn allows us to remove the
quite ugly generic_set_encrypted_ci_d_ops() operations. It also
improves performance by trying a case-sensitive comparison first and
then fallback to case-insensitive lookup if that fails. This also
fixes a bug where overlayfs would be able to be mounted over a case
insensitive directory which would lead to all sort of odd behaviors.
Cleanups
========
* Make file_dentry() a simple accessor now that ->d_real() is
simplified because of the backing file work we did the last two
cycles.
* Use the dedicated file_mnt_idmap helper in ntfs3.
* Use smp_load_acquire/store_release() in the i_size_read/write helpers
and thus remove the hack to handle i_size reads in the filemap code.
* The SLAB_MEM_SPREAD is a nop now. Remove it from various places in fs/
* It's no longer necessary to perform a second built-in initramfs unpack
call because we retain the contents of the previous extraction. Remove it.
* Now that we have removed various allocators kfree_rcu() always works
with kmem caches and kmalloc(). So simplify various places that only
use an rcu callback in order to handle the kmem cache case.
* Convert the pipe code to use a lockdep comparison function instead of
open-coding the nesting making lockdep validation easier.
* Move code into fs-writeback.c that was located in a header but can be
made static as it's only used in that one file.
* Rewrite the alignment checking iterators for iovec and bvec to be
easier to read, and also significantly more compact in terms of
generated code. This saves 270 bytes of text on x86-64 (with clang-18)
and 224 bytes on arm64 (with gcc-13). In profiles it also saves a bit
of time for the same workload.
* Switch various places to use KMEM_CACHE instead of kmem_cache_create().
* Use inode_set_ctime_to_ts() in inode_set_ctime_current()
* Use kzalloc() in name_to_handle_at() to avoid kernel infoleak.
* Various smaller cleanups for eventfds.
Fixes
=====
* Fix various comments and typos, and unneeded initializations.
* Fix stack allocation hack for clang in the select code.
* Improve dump_mapping() debug code on a best-effort basis.
* Fix build errors in various selftests.
* Avoid wrap-around instrumentation in various places.
* Don't allow user namespaces without an an idmapping written to be used
for idmapped mounts.
* Fix sysv sb_read() call.
* Fix fallback implementation of the get_name() export operation.
/* Testing */
clang: Debian clang version 16.0.6 (19)
gcc: (Debian 13.2.0-7) 13.2.0
All patches are based on v6.8-rc1 and have been sitting in linux-next.
No build failures or warnings were observed.
/* Conflicts */
Merge conflicts with other trees
================================
[1] linux-next: manual merge of the scsi-mkp tree with the vfs-brauner tree
https://lore.kernel.org/linux-next/20240227153716.43e5cbad@canb.auug.org.au
Merge conflicts with mainline
=============================
No known conflicts.
The following changes since commit 6613476e225e090cc9aad49be7fa504e290dd33d:
Linux 6.8-rc1 (2024-01-21 14:11:32 -0800)
are available in the Git repository at:
git@gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs tags/vfs-6.9.misc
for you to fetch changes up to 09406ad8e5105729291a7639160e0cd51c9e0c6c:
Merge tag 'for-next-6.9' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/krisman/unicode into vfs.misc (2024-03-07 11:55:41 +0100)
Please consider pulling these changes from the signed vfs-6.9.misc tag.
Thanks!
Christian
----------------------------------------------------------------
vfs-6.9.misc
----------------------------------------------------------------
Alexander Mikhalitsyn (1):
ntfs3: use file_mnt_idmap helper
Amir Goldstein (2):
fs: make file_dentry() a simple accessor
fs: remove the inode argument to ->d_real() method
Andreas Gruenbacher (1):
fs: Wrong function name in comment
Arnd Bergmann (1):
fs/select: rework stack allocation hack for clang
Baokun Li (3):
fs: make the i_size_read/write helpers be smp_load_acquire/store_release()
Revert "mm/filemap: avoid buffered read/write race to read inconsistent data"
asm-generic: remove extra type checking in acquire/release for non-SMP case
Baolin Wang (1):
fs: improve dump_mapping() robustness
Bill O'Donnell (2):
efs: convert efs to use the new mount api
qnx4: convert qnx4 to use the new mount api
Chen Hanxiao (1):
__fs_parse: Correct a documentation comment
Chengming Zhou (10):
vfs: remove SLAB_MEM_SPREAD flag usage
sysv: remove SLAB_MEM_SPREAD flag usage
romfs: remove SLAB_MEM_SPREAD flag usage
reiserfs: remove SLAB_MEM_SPREAD flag usage
qnx6: remove SLAB_MEM_SPREAD flag usage
proc: remove SLAB_MEM_SPREAD flag usage
openpromfs: remove SLAB_MEM_SPREAD flag usage
minix: remove SLAB_MEM_SPREAD flag usage
jfs: remove SLAB_MEM_SPREAD flag usage
efs: remove SLAB_MEM_SPREAD flag usage
Christian Brauner (3):
Merge tag 'exportfs-6.9' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/cel/linux
Merge series 'Use Maple Trees for simple_offset utilities' of https://lore.kernel.org/r/170820083431.6328.16233178852085891453.stgit@91.116.238.104.host.secureserver.net
Merge tag 'for-next-6.9' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/krisman/unicode into vfs.misc
Chuck Lever (6):
fs: Create a generic is_dot_dotdot() utility
libfs: Re-arrange locking in offset_iterate_dir()
libfs: Define a minimum directory offset
libfs: Add simple_offset_empty()
maple_tree: Add mtree_alloc_cyclic()
libfs: Convert simple directory offsets to use a Maple Tree
David Disseldorp (1):
initramfs: remove duplicate built-in __initramfs_start unpacking
David Howells (1):
Convert coda to use the new mount API
Dmitry Antipov (2):
fs: prefer kfree_rcu() in fasync_remove_entry()
eventpoll: prefer kfree_rcu() in __ep_remove()
Gabriel Krisman Bertazi (11):
libfs: Attempt exact-match comparison first during casefolded lookup
ovl: Always reject mounting over case-insensitive directories
fscrypt: Factor out a helper to configure the lookup dentry
fscrypt: Drop d_revalidate for valid dentries during lookup
fscrypt: Drop d_revalidate once the key is added
libfs: Merge encrypted_ci_dentry_ops and ci_dentry_ops
libfs: Add helper to choose dentry operations at mount-time
ext4: Configure dentry operations at dentry-creation time
f2fs: Configure dentry operations at dentry-creation time
ubifs: Configure dentry operations at dentry-creation time
libfs: Drop generic_set_encrypted_ci_d_ops
Giuseppe Scrivano (1):
hugetlbfs: support idmapped mounts
Hu Yadi (1):
selftests/filesystems:fix build error in overlayfs
Hu.Yadi (1):
selftests/move_mount_set_group:Make tests build with old libc
Huang Xiaojia (1):
epoll: Remove ep_scan_ready_list() in comments
Jay (1):
fs: fix a typo in attr.c
Jens Axboe (1):
iov_iter: streamline iovec/bvec alignment iteration
JonasZhou (1):
fs/address_space: move i_mmap_rwsem to mitigate a false sharing with i_mmap.
Kees Cook (2):
iov_iter: Avoid wrap-around instrumentation in copy_compat_iovec_from_user()
select: Avoid wrap-around instrumentation in do_sys_poll()
Kemeng Shi (1):
writeback: move wb_wakeup_delayed defination to fs-writeback.c
Kent Overstreet (1):
fs/pipe: Convert to lockdep_cmp_fn
Kunwu Chan (3):
buffer: Use KMEM_CACHE instead of kmem_cache_create()
fs: Use KMEM_CACHE instead of kmem_cache_create
mbcache: Simplify the allocation of slab caches
Li zeming (1):
libfs: Remove unnecessary ‘0’ values from ret
Liam R. Howlett (1):
test_maple_tree: testing the cyclic allocation
Nguyen Dinh Phi (1):
fs: use inode_set_ctime_to_ts to set inode ctime to current time
Nikita Zhandarovich (1):
do_sys_name_to_handle(): use kzalloc() to fix kernel-infoleak
Randy Dunlap (1):
fs/hfsplus: use better @opf description
Rich Felker (1):
vfs: add RWF_NOAPPEND flag for pwritev2
Taylor Jackson (1):
fs/mnt_idmapping.c: Return -EINVAL when no map is written
Tetsuo Handa (1):
sysv: don't call sb_bread() with pointers_lock held
Trond Myklebust (1):
exportfs: fix the fallback implementation of the get_name export operation
Vincenzo Mezzela (1):
docs: filesystems: fix typo in docs
Wen Yang (3):
eventfd: add a BUILD_BUG_ON() to ensure consistency between EFD_SEMAPHORE and the uapi
eventfd: move 'eventfd-count' printing out of spinlock
eventfd: strictly check the count parameter of eventfd_write to avoid inputting illegal strings
Documentation/filesystems/files.rst | 2 +-
Documentation/filesystems/locking.rst | 2 +-
Documentation/filesystems/vfs.rst | 16 +-
fs/attr.c | 2 +-
fs/backing-file.c | 4 +-
fs/buffer.c | 10 +-
fs/coda/inode.c | 143 ++++++++++-----
fs/crypto/fname.c | 8 +-
fs/crypto/hooks.c | 15 +-
fs/dcache.c | 2 +-
fs/ecryptfs/crypto.c | 10 --
fs/efs/super.c | 118 ++++++++----
fs/eventfd.c | 16 +-
fs/eventpoll.c | 16 +-
fs/exportfs/expfs.c | 2 +-
fs/ext4/namei.c | 1 -
fs/ext4/super.c | 1 +
fs/f2fs/f2fs.h | 11 --
fs/f2fs/namei.c | 1 -
fs/f2fs/super.c | 1 +
fs/fcntl.c | 8 +-
fs/fhandle.c | 2 +-
fs/fs-writeback.c | 25 +++
fs/fs_parser.c | 4 +-
fs/hfsplus/wrapper.c | 2 +-
fs/hugetlbfs/inode.c | 23 ++-
fs/inode.c | 7 +-
fs/jfs/super.c | 2 +-
fs/libfs.c | 200 +++++++++++----------
fs/mbcache.c | 4 +-
fs/minix/inode.c | 2 +-
fs/mnt_idmapping.c | 2 +-
fs/namei.c | 6 +-
fs/ntfs3/namei.c | 2 +-
fs/openpromfs/inode.c | 2 +-
fs/overlayfs/params.c | 14 +-
fs/overlayfs/super.c | 52 +++---
fs/pipe.c | 81 ++++-----
fs/proc/inode.c | 2 +-
fs/qnx4/inode.c | 47 +++--
fs/qnx6/inode.c | 2 +-
fs/reiserfs/super.c | 1 -
fs/romfs/super.c | 4 +-
fs/select.c | 15 +-
fs/sysv/inode.c | 2 +-
fs/sysv/itree.c | 10 +-
fs/ubifs/dir.c | 1 -
fs/ubifs/super.c | 1 +
include/asm-generic/barrier.h | 2 -
include/linux/backing-dev.h | 1 -
include/linux/dcache.h | 18 +-
include/linux/fs.h | 61 ++++++-
include/linux/fscrypt.h | 66 ++++++-
include/linux/maple_tree.h | 7 +
include/linux/poll.h | 4 -
include/uapi/linux/fs.h | 5 +-
init/initramfs.c | 2 -
lib/iov_iter.c | 60 ++++---
lib/maple_tree.c | 93 ++++++++++
lib/test_maple_tree.c | 44 +++++
mm/backing-dev.c | 25 ---
mm/filemap.c | 9 -
mm/shmem.c | 4 +-
.../selftests/filesystems/overlayfs/dev_in_maps.c | 10 +-
.../move_mount_set_group_test.c | 4 +-
65 files changed, 816 insertions(+), 503 deletions(-)
^ permalink raw reply [flat|nested] 8+ messages in thread* [GIT PULL] vfs misc
@ 2024-05-10 11:46 Christian Brauner
2024-05-13 19:38 ` pr-tracker-bot
0 siblings, 1 reply; 8+ messages in thread
From: Christian Brauner @ 2024-05-10 11:46 UTC (permalink / raw)
To: Linus Torvalds; +Cc: Christian Brauner, linux-fsdevel, linux-kernel
Hey Linus,
/* Summary */
This contains the usual miscellaneous features, cleanups, and fixes for
vfs and individual fses.
Features
========
* Free up FMODE_* bits. I've freed up bits 6, 7, 8, and 24. That means
we now have six free FMODE_* bits in total.
* Add FOP_HUGE_PAGES flag (follow-up to FMODE_* cleanup).
* Add fd_raw cleanup class so we can make use of automatic cleanup
provided by CLASS(fd_raw, f)(fd) for O_PATH fds as well.
* Optimize seq_puts().
* Simplify __seq_puts().
* Add new anon_inode_getfile_fmode() api to allow specifying f_mode
instead of open-coding it in multiple places.
* Annotate struct file_handle with __counted_by() and use struct_size().
* Warn in get_file() whether f_count resurrection from zero is
attempted (epoll/drm discussion).
* Folio-sophize aio.
* Export the subvolume id in statx() for both btrfs and bcachefs.
* Relax linkat(AT_EMPTY_PATH) requirements.
* Add F_DUPFD_QUERY fcntl() allowing to compare two file descriptors for
dup*() equality replacing kcmp().
Cleanups
========
* Compile out swapfile inode checks when swap isn't enabled.
* Use (0 << n) notation for FMODE_* bitshifts for clarity.
* Remove redundant variable assignment in fs/direct-io
* Cleanup uses of strncpy in orangefs.
* Speed up and cleanup writeback.
* Move fsparam_string_empty() helper into header since it's currently
open-coded in multiple places.
* Add kernel-doc comments to proc_create_net_data_write().
* Don't needlessly read dentry->d_flags twice.
Fixes
=====
* Fix out-of-range warning in nilfs2.
* Fix ecryptfs overflow due to wrong encryption packet size calculation.
* Fix overly long line in xfs file_operations.
(follow-up to FMODE_* cleanup)
* Don't raise FOP_BUFFER_{R,W}ASYNC for directories in xfs.
(follow-up to FMODE_* cleanup)
* Don't call xfs_file_open from xfs_dir_open (follow-up to FMODE_* cleanup)
* Fix stable offset api to prevent endless loops.
* Fix afs file server rotations.
* Prevent xattr node from overflowing the eraseblock in jffs2.
* Move fdinfo PTRACE_MODE_READ procfs check into the inode .permission operation
instead of open operation since this causes userspace regressions.
/* Testing */
clang: Debian clang version 16.0.6 (26)
gcc: (Debian 13.2.0-24)
All patches are based on v6.9-rc1 and have been sitting in linux-next.
No build failures or warnings were observed.
/* Conflicts */
Merge conflicts with other trees
================================
[1] linux-next: manual merge of the vfs-brauner tree with the ext4 tree
https://lore.kernel.org/linux-next/20240508103436.589bb440@canb.auug.org.au
[2] linux-next: manual merge of the block tree with the vfs-brauner, vfs trees
https://lore.kernel.org/linux-next/20240416124426.624cfaf9@canb.auug.org.au
[3] linux-next: manual merge of the block tree with the vfs-brauner tree
https://lore.kernel.org/linux-next/20240402112137.1ee85957@canb.auug.org.au
Merge conflicts with mainline
=============================
There'll be a merge conflict with mainline stemming from the addition of
FMODE_WRITE_RESTRICTED and the conversion of FMODE_* flags to (1 << n)
bit shitfs. The conflict can be resolved as follows:
diff --cc include/linux/fs.h
index 8dfd53b52744,5b351c1e6f58..000000000000
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@@ -110,23 -110,24 +110,26 @@@ typedef int (dio_iodone_t)(struct kioc
*/
/* file is open for reading */
- #define FMODE_READ ((__force fmode_t)0x1)
+ #define FMODE_READ ((__force fmode_t)(1 << 0))
/* file is open for writing */
- #define FMODE_WRITE ((__force fmode_t)0x2)
+ #define FMODE_WRITE ((__force fmode_t)(1 << 1))
/* file is seekable */
- #define FMODE_LSEEK ((__force fmode_t)0x4)
+ #define FMODE_LSEEK ((__force fmode_t)(1 << 2))
/* file can be accessed using pread */
- #define FMODE_PREAD ((__force fmode_t)0x8)
+ #define FMODE_PREAD ((__force fmode_t)(1 << 3))
/* file can be accessed using pwrite */
- #define FMODE_PWRITE ((__force fmode_t)0x10)
+ #define FMODE_PWRITE ((__force fmode_t)(1 << 4))
/* File is opened for execution with sys_execve / sys_uselib */
- #define FMODE_EXEC ((__force fmode_t)0x20)
+ #define FMODE_EXEC ((__force fmode_t)(1 << 5))
+/* File writes are restricted (block device specific) */
- #define FMODE_WRITE_RESTRICTED ((__force fmode_t)0x40)
++#define FMODE_WRITE_RESTRICTED ((__force fmode_t)(1 << 6))
+
-/* FMODE_* bits 6 to 8 */
++/* FMODE_* bits 7 to 8 */
+
/* 32bit hashes as llseek() offset (for directories) */
- #define FMODE_32BITHASH ((__force fmode_t)0x200)
+ #define FMODE_32BITHASH ((__force fmode_t)(1 << 9))
/* 64bit hashes as llseek() offset (for directories) */
- #define FMODE_64BITHASH ((__force fmode_t)0x400)
+ #define FMODE_64BITHASH ((__force fmode_t)(1 << 10))
/*
* Don't update ctime and mtime.
The following changes since commit 4cece764965020c22cff7665b18a012006359095:
Linux 6.9-rc1 (2024-03-24 14:10:05 -0700)
are available in the Git repository at:
git@gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs tags/vfs-6.10.misc
for you to fetch changes up to da0e01cc7079124cb1e86a2c35dd90ba12897e1a:
afs: Fix fileserver rotation getting stuck (2024-05-10 08:49:17 +0200)
Please consider pulling these changes from the signed vfs-6.10.misc tag.
Thanks!
Christian
----------------------------------------------------------------
vfs-6.10.misc
----------------------------------------------------------------
Alexey Dobriyan (1):
vfs, swap: compile out IS_SWAPFILE() on swapless configs
Arnd Bergmann (1):
nilfs2: fix out-of-range warning
Brian Kubisiak (1):
ecryptfs: Fix buffer size for tag 66 packet
Christian Brauner (7):
Merge series 'Fixes and cleanups to fs-writeback' of https://lore.kernel.org/r/20240228091958.288260-1-shikemeng@huaweicloud.com
Merge patch series 'fs: aio: more folio conversion' of https://lore.kernel.org/r/20240321131640.948634-1-wangkefeng.wang@huawei.com
fs: claw back a few FMODE_* bits
fs: use bit shifts for FMODE_* flags
Merge patch series 'Fix shmem_rename2 directory offset calculation' of https://lore.kernel.org/r/20240415152057.4605-1-cel@kernel.org
file: add fd_raw cleanup class
selftests: add F_DUPDFD_QUERY selftests
Christoph Hellwig (3):
xfs: fix overly long line in the file_operations
xfs: drop fop_flags for directories
xfs: don't call xfs_file_open from xfs_dir_open
Christophe JAILLET (2):
seq_file: Optimize seq_puts()
seq_file: Simplify __seq_puts()
Chuck Lever (3):
libfs: Fix simple_offset_rename_exchange()
libfs: Add simple_offset_rename() API
shmem: Fix shmem_rename2()
Colin Ian King (1):
fs/direct-io: remove redundant assignment to variable retval
David Howells (1):
afs: Fix fileserver rotation getting stuck
Dawid Osuchowski (1):
fs: Create anon_inode_getfile_fmode()
Gustavo A. R. Silva (1):
fs: Annotate struct file_handle with __counted_by() and use struct_size()
Ilya Denisyev (1):
jffs2: prevent xattr node from overflowing the eraseblock
Justin Stitt (1):
orangefs: cleanup uses of strncpy
Kees Cook (1):
fs: WARN when f_count resurrection is attempted
Kefeng Wang (3):
fs: aio: use a folio in aio_setup_ring()
fs: aio: use a folio in aio_free_ring()
fs: aio: convert to ring_folios and internal_folios
Kemeng Shi (6):
fs/writeback: avoid to writeback non-expired inode in kupdate writeback
fs/writeback: bail out if there is no more inodes for IO and queued once
fs/writeback: remove unused parameter wb of finish_writeback_work
fs/writeback: only calculate dirtied_before when b_io is empty
fs/writeback: correct comment of __wakeup_flusher_threads_bdi
fs/writeback: remove unnecessary return in writeback_inodes_sb
Kent Overstreet (1):
statx: stx_subvol
Linus Torvalds (2):
vfs: relax linkat() AT_EMPTY_PATH - aka flink() - requirements
fcntl: add F_DUPFD_QUERY fcntl()
Luis Henriques (SUSE) (1):
fs_parser: move fsparam_string_empty() helper into header
Matthew Wilcox (Oracle) (1):
fs: Add FOP_HUGE_PAGES
Tyler Hicks (Microsoft) (1):
proc: Move fdinfo PTRACE_MODE_READ check into the inode .permission operation
Yang Li (1):
fs: Add kernel-doc comments to proc_create_net_data_write()
linke li (1):
fs/dcache: Re-use value stored to dentry->d_flags instead of re-reading
block/bdev.c | 2 +-
block/fops.c | 1 +
drivers/dax/device.c | 2 +-
fs/afs/rotate.c | 8 ++-
fs/aio.c | 91 ++++++++++++------------
fs/anon_inodes.c | 33 +++++++++
fs/bcachefs/fs.c | 3 +
fs/btrfs/file.c | 4 +-
fs/btrfs/inode.c | 3 +
fs/dcache.c | 2 +-
fs/direct-io.c | 1 -
fs/ecryptfs/keystore.c | 4 +-
fs/ext4/file.c | 6 +-
fs/ext4/super.c | 4 --
fs/f2fs/file.c | 3 +-
fs/fcntl.c | 20 ++++++
fs/fhandle.c | 6 +-
fs/fs-writeback.c | 57 ++++++++-------
fs/hugetlbfs/inode.c | 5 +-
fs/jffs2/xattr.c | 3 +
fs/libfs.c | 55 +++++++++++++--
fs/namei.c | 19 +++--
fs/nilfs2/ioctl.c | 2 +-
fs/orangefs/dcache.c | 4 +-
fs/orangefs/namei.c | 26 +++----
fs/orangefs/super.c | 17 ++---
fs/overlayfs/params.c | 4 --
fs/proc/fd.c | 42 ++++++-----
fs/proc/proc_net.c | 1 +
fs/read_write.c | 2 +-
fs/seq_file.c | 13 +---
fs/stat.c | 1 +
fs/xfs/xfs_file.c | 10 +--
include/linux/anon_inodes.h | 5 ++
include/linux/file.h | 1 +
include/linux/fs.h | 92 +++++++++++++++----------
include/linux/fs_parser.h | 4 ++
include/linux/hugetlb.h | 8 +--
include/linux/namei.h | 1 +
include/linux/seq_file.h | 13 +++-
include/linux/shm.h | 5 --
include/linux/stat.h | 1 +
include/uapi/linux/fcntl.h | 14 ++--
include/uapi/linux/stat.h | 4 +-
io_uring/io_uring.c | 2 +-
io_uring/rw.c | 9 +--
ipc/shm.c | 10 +--
mm/mmap.c | 4 +-
mm/shmem.c | 3 +-
tools/testing/selftests/core/close_range_test.c | 55 ++++++++++++++-
50 files changed, 437 insertions(+), 248 deletions(-)
^ permalink raw reply [flat|nested] 8+ messages in thread* [GIT PULL] vfs: misc
@ 2023-06-23 11:01 Christian Brauner
2023-06-26 17:34 ` pr-tracker-bot
0 siblings, 1 reply; 8+ messages in thread
From: Christian Brauner @ 2023-06-23 11:01 UTC (permalink / raw)
To: Linus Torvalds; +Cc: Christian Brauner, linux-fsdevel, linux-kernel
Hey Linus,
/* Summary */
This contains miscellaneous features, cleanups, and fixes for vfs and
individual fs.
Features
========
* Use mode 0600 for file created by cachefilesd so it can be run by
unprivileged users. This aligns them with directories which are
already created with mode 0700 by cachefilesd.
* Reorder a few members in struct file to prevent some false sharing
scenarios.
* Indicate that an eventfd is used a semaphore in the eventfd's fdinfo
procfs file.
* Add a missing uapi header for eventfd exposing relevant uapi defines.
* Let the VFS protect transitions of a superblock from read-only to
read-write in addition to the protection it already provides for
transitions from read-write to read-only. Protecting read-only to
read-write transitions allows filesystems such as ext4 to perform
internal writes, keeping writers away until the transition is
completed.
Cleanups
========
* Arnd removed the architecture specific arch_report_meminfo()
prototypes and added a generic one into procfs.h.
Note, we got a report about a warning in amdpgpu codepaths that
suggested this was bisectable to this change but we concluded it was a
false positive.
* Remove unused parameters from split_fs_names().
* Rename put_and_unmap_page() to unmap_and_put_page() to let the name
reflect the order of the cleanup operation that has to unmap before
the actual put.
* Unexport buffer_check_dirty_writeback() as it is not used outside of
block device aops.
* Stop allocating aio rings from highmem.
* Protecting read-{only,write} transitions in the VFS used open-coded
barriers in various places. Replace them with proper little helpers
and document both the helpers and all barrier interactions involved
when transitioning between read-{only,write} states.
* Use flexible array members in old readdir codepaths.
Fixes
=====
* Use the correct type __poll_t for epoll and eventfd.
* Replace all deprecated strlcpy() invocations, whose return value isn't
checked with an equivalent strscpy() call.
* Fix some kernel-doc warnings in fs/open.c
* Reduce the stack usage in jffs2's xattr codepaths finally getting
rid of this:
fs/jffs2/xattr.c:887:1: error: the frame size of 1088 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
royally annoying compilation warning.
* Use __FMODE_NONOTIFY instead of FMODE_NONOTIFY where an int and not
fmode_t is required to avoid fmode_t to integer degradation warnings.
* Create coredumps with O_WRONLY instead of O_RDWR. There's a long
explanation in that commit how O_RDWR is actually a bug which we found
out with the help of Linus and git archeology.
* Fix "no previous prototype" warnings in the pipe codepaths.
* Add overflow calculations for remap_verify_area() as a signed addition
overflow could be triggered in xfstests.
* Fix a null pointer dereference in sysv.
* Use an unsigned variable for length calculations in jfs avoiding
compilation warnings with gcc 13.
* Fix a dangling pipe pointer in the watch queue codepath.
* The legacy mount option parser provided as a fallback by the VFS for
filesystems not yet converted to the new mount api did prefix the
generated mount option string with a leading ',' causing issues for
some filesystems.
* Fix a repeated word in a comment in fs.h.
* autofs: Update the ctime when mtime is updated as mandated by POSIX.
/* Testing */
clang: Ubuntu clang version 15.0.7
gcc: (Ubuntu 12.2.0-3ubuntu1) 12.2.0
All patches are based on v6.4-rc2 and have been sitting in linux-next.
No build failures or warnings were observed. All old and new tests in
fstests, selftests, and LTP pass without regressions.
/* Conflicts */
There are two merge conflicts:
(1) This will cause a minor merge conflict with my v6.5/vfs.file pull
request which renames an internal helper that's used in cachefiles.
I would suggest to merge v6.5/vfs.misc first.
(2) linux-next: manual merge of the tip tree with the vfs-brauner tree
https://lore.kernel.org/all/20230622131108.19059f3c@canb.auug.org.au
At the time of creating this PR no merge conflicts showed up doing a
test-merge with current mainline.
The following changes since commit f1fcbaa18b28dec10281551dfe6ed3a3ed80e3d6:
Linux 6.4-rc2 (2023-05-14 12:51:40 -0700)
are available in the Git repository at:
git@gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs tags/v6.5/vfs.misc
for you to fetch changes up to 2507135e4ff231a368eae38000a501da0b96c662:
readdir: Replace one-element arrays with flexible-array members (2023-06-21 09:06:59 +0200)
Please consider pulling these changes from the signed v6.5/vfs.misc tag.
Thanks!
Christian
----------------------------------------------------------------
v6.5/vfs.misc
----------------------------------------------------------------
Anuradha Weeraman (1):
fs/open.c: Fix W=1 kernel doc warnings
Arnd Bergmann (3):
fs: d_path: include internal.h
fs: pipe: reveal missing function protoypes
procfs: consolidate arch_report_meminfo declaration
Azeem Shaikh (1):
vfs: Replace all non-returning strlcpy with strscpy
Christoph Hellwig (1):
fs: unexport buffer_check_dirty_writeback
David Howells (1):
cachefiles: Allow the cache to be non-root
David Sterba (1):
fs: use UB-safe check for signed addition overflow in remap_verify_area
Fabian Frederick (1):
jffs2: reduce stack usage in jffs2_build_xattr_subsystem()
Fabio M. De Francesco (2):
highmem: Rename put_and_unmap_page() to unmap_and_put_page()
fs/aio: Stop allocating aio rings from HIGHMEM
Gustavo A. R. Silva (1):
readdir: Replace one-element arrays with flexible-array members
Jan Kara (2):
fs: Protect reconfiguration of sb read-write from racing writes
fs: Provide helpers for manipulating sb->s_readonly_remount
Jeff Layton (1):
autofs: set ctime as well when mtime changes on a dir
Kees Cook (1):
jfs: Use unsigned variable for length calculations
Mao Zhu (1):
fs: Fix comment typo
Min-Hua Chen (2):
fs: use correct __poll_t type
fs: fix incorrect fmode_t casts
Prince Kumar Maurya (1):
fs/sysv: Null check to prevent null-ptr-deref bug
Siddh Raman Pant (1):
watch_queue: prevent dangling pipe pointer
Thomas Weißschuh (1):
fs: avoid empty option when generating legacy mount string
Vladimir Sementsov-Ogievskiy (1):
coredump: require O_WRONLY instead of O_RDWR
Wen Yang (2):
eventfd: show the EFD_SEMAPHORE flag in fdinfo
eventfd: add a uapi header for eventfd userspace APIs
Yihuan Pan (1):
init: remove unused names parameter in split_fs_names()
chenzhiyin (1):
fs.h: Optimize file struct to prevent false sharing
arch/parisc/include/asm/pgtable.h | 3 ---
arch/powerpc/include/asm/pgtable.h | 3 ---
arch/s390/include/asm/pgtable.h | 3 ---
arch/s390/mm/pageattr.c | 1 +
arch/x86/include/asm/pgtable.h | 1 +
arch/x86/include/asm/pgtable_types.h | 3 ---
arch/x86/mm/pat/set_memory.c | 1 +
fs/aio.c | 26 ++++++++---------------
fs/autofs/root.c | 6 +++---
fs/buffer.c | 1 -
fs/cachefiles/namei.c | 3 ++-
fs/char_dev.c | 2 +-
fs/coredump.c | 2 +-
fs/d_path.c | 1 +
fs/eventfd.c | 12 ++++++-----
fs/eventpoll.c | 2 +-
fs/fs_context.c | 3 ++-
fs/internal.h | 41 ++++++++++++++++++++++++++++++++++++
fs/jffs2/build.c | 5 ++++-
fs/jffs2/xattr.c | 13 ++++++++----
fs/jffs2/xattr.h | 4 ++--
fs/jfs/namei.c | 6 +++---
fs/namespace.c | 25 ++++++++++++++--------
fs/open.c | 14 +++---------
fs/overlayfs/file.c | 2 +-
fs/readdir.c | 8 +++----
fs/remap_range.c | 5 ++++-
fs/super.c | 22 +++++++++++--------
fs/sysv/dir.c | 22 +++++++++----------
fs/sysv/itree.c | 4 ++++
fs/sysv/namei.c | 8 +++----
include/linux/eventfd.h | 8 ++-----
include/linux/fs.h | 20 ++++++++++++------
include/linux/highmem.h | 2 +-
include/linux/pipe_fs_i.h | 4 ----
include/linux/proc_fs.h | 2 ++
include/linux/watch_queue.h | 3 +--
include/uapi/linux/eventfd.h | 11 ++++++++++
init/do_mounts.c | 6 +++---
kernel/watch_queue.c | 12 +++++------
40 files changed, 188 insertions(+), 132 deletions(-)
create mode 100644 include/uapi/linux/eventfd.h
^ permalink raw reply [flat|nested] 8+ messages in thread* [git pull] vfs misc
@ 2020-06-10 20:30 Al Viro
2020-06-11 1:50 ` pr-tracker-bot
0 siblings, 1 reply; 8+ messages in thread
From: Al Viro @ 2020-06-10 20:30 UTC (permalink / raw)
To: Linus Torvalds; +Cc: linux-kernel, linux-fsdevel
A couple of trivial patches that fell through the cracks last cycle
The following changes since commit 8f3d9f354286745c751374f5f1fcafee6b3f3136:
Linux 5.7-rc1 (2020-04-12 12:35:55 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git work.misc
for you to fetch changes up to cc23402c1c2de8b1815212f3924cdbc3cda02b94:
fs: fix indentation in deactivate_super() (2020-05-29 10:35:25 -0400)
----------------------------------------------------------------
Nikolay Borisov (1):
vfs: Remove duplicated d_mountpoint check in __is_local_mountpoint
Yufen Yu (1):
fs: fix indentation in deactivate_super()
fs/namespace.c | 5 +----
fs/super.c | 2 +-
2 files changed, 2 insertions(+), 5 deletions(-)
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2024-05-13 19:38 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
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2024-03-08 10:09 [GIT PULL] vfs misc Christian Brauner
2024-03-11 18:33 ` pr-tracker-bot
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2024-05-10 11:46 Christian Brauner
2024-05-13 19:38 ` pr-tracker-bot
2023-06-23 11:01 [GIT PULL] vfs: misc Christian Brauner
2023-06-26 17:34 ` pr-tracker-bot
2020-06-10 20:30 [git pull] vfs misc Al Viro
2020-06-11 1:50 ` pr-tracker-bot
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