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Message-ID: <20240510-vfs-misc-22ed27ba6cd7@brauner>
Date: Fri, 10 May 2024 13:46:24 +0200
From: Christian Brauner <brauner@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Christian Brauner <brauner@...nel.org>,
linux-fsdevel@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [GIT PULL] vfs misc
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@...olite.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(-)
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