[GIT PULL] vfs misc updates

From: Christian Brauner
Date: Fri Jan 05 2024 - 07:35:34 EST

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Hey Linus,

/* Summary */
This contains the usual miscellaneous features, cleanups, and fixes for vfs and
individual fses. The vfs.file branch merged into here has also been merged into
io_uring which depends on it.

Features
========

* Add Jan Kara as VFS reviewer.
* Show correct device and inode numbers in proc/<pid>/maps for vma files on
stacked filesystems. This is now easily doable thanks to the backing file
work from the last cycles. This comes with selftests.

Cleanups
========

* Remove a redundant might_sleep() from wait_on_inode().
* Initialize pointer with NULL, not 0.
* Clarify comment on access_override_creds().
* Rework and simplify eventfd_signal() and eventfd_signal_mask() helpers.
* Process aio completions in batches to avoid needless wakeups.
* Completely decouple struct mnt_idmap from namespaces. We now only keep the
actual idmapping around and don't stash references to namespaces.
* Reformat maintainer entries to indicate that a given subsystem belongs to fs/.
* Simplify fput() for files that were never opened.
* Get rid of various pointless file helpers.
* Rename various file helpers.
* Rename struct file members after SLAB_TYPESAFE_BY_RCU switch from last cycle.
* Make relatime_need_update() return bool.
* Use GFP_KERNEL instead of GFP_USER when allocating superblocks.
* Replace deprecated ida_simple_*() calls with their current ida_*() counterparts.

Fixes
=====

* Fix comments on user namespace id mapping helpers. They aren't kernel doc
comments so they shouldn't be using /**.
* s/Retuns/Returns/g in various places.
* Add missing parameter documentation on can_move_mount_beneath().
* Rename i_mapping->private_data to i_mapping->i_private_data.
* Fix a false-positive lockdep warning in pipe_write() for watch queues.
* Improve __fget_files_rcu() code generation to improve performance.
* Only notify writer that pipe resizing has finished after setting
pipe->max_usage otherwise writers are never notified that the pipe has been
resized and hang.
* Fix some kernel docs in hfsplus.
* s/passs/pass/g in various places.
* Fix kernel docs in ntfs.
* Fix kcalloc() arguments order reported by gcc 14.
* Fix uninitialized value in reiserfs.

/* Testing */
clang: Debian clang version 16.0.6 (19)
gcc: (Debian 13.2.0-7) 13.2.0

All patches are based on v6.7-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 mm tree
https://lore.kernel.org/linux-next/20231122103119.34d23955@xxxxxxxxxxxxxxxx

[2] linux-next: manual merge of the vfs-brauner tree with the btrfs tree
https://lore.kernel.org/linux-next/20231127091437.4062f96c@xxxxxxxxxxxxxxxx

The following changes since commit b85ea95d086471afb4ad062012a4d73cd328fa86:

Linux 6.7-rc1 (2023-11-12 16:19:07 -0800)

are available in the Git repository at:

git@xxxxxxxxxxxxxxxxxxx:pub/scm/linux/kernel/git/vfs/vfs tags/vfs-6.8.misc

for you to fetch changes up to dd8f87f21dc3da2eaf46e7401173f935b90b13a8:

reiserfs: fix uninit-value in comp_keys (2023-12-28 11:56:52 +0100)

Please consider pulling these changes from the signed vfs-6.8.misc tag.

Happy New Year!
Christian

----------------------------------------------------------------
vfs-6.8.misc

----------------------------------------------------------------
Abhinav Singh (1):
fs : Fix warning using plain integer as NULL

Al Viro (1):
file: massage cleanup of files that failed to open

Alexander Mikhalitsyn (2):
fs: super: use GFP_KERNEL instead of GFP_USER for super block allocation
fs: fix doc comment typo fs tree wide

Andrei Vagin (2):
fs/proc: show correct device and inode numbers in /proc/pid/maps
selftests/overlayfs: verify device and inode numbers in /proc/pid/maps

Bagas Sanjaya (1):
fs: Clarify "non-RCY" in access_override_creds() comment

Christian Brauner (16):
fs: add missing @mp parameter documentation
i915: make inject_virtual_interrupt() void
eventfd: simplify eventfd_signal()
eventfd: simplify eventfd_signal_mask()
eventfd: make eventfd_signal{_mask}() void
mnt_idmapping: remove check_fsmapping()
mnt_idmapping: remove nop check
mnt_idmapping: decouple from namespaces
fs: reformat idmapped mounts entry
file: s/close_fd_get_file()/file_close_fd()/g
file: remove pointless wrapper
fs: replace f_rcuhead with f_task_work
file: stop exposing receive_fd_user()
file: remove __receive_fd()
fs: add Jan Kara as reviewer
Merge branch 'vfs.file'

Christophe JAILLET (1):
eventfd: Remove usage of the deprecated ida_simple_xx() API

Dmitry Antipov (1):
watch_queue: fix kcalloc() arguments order

Edward Adam Davis (1):
reiserfs: fix uninit-value in comp_keys

Hao Ge (1):
fs/inode: Make relatime_need_update return bool

Jann Horn (1):
fs/pipe: Fix lockdep false-positive in watchqueue pipe_write()

Kent Overstreet (1):
fs/aio: obey min_nr when doing wakeups

Linus Torvalds (1):
Improve __fget_files_rcu() code generation (and thus __fget_light())

Lukas Schauer (1):
pipe: wakeup wr_wait after setting max_usage

Mateusz Guzik (1):
vfs: remove a redundant might_sleep in wait_on_inode

Matthew Wilcox (Oracle) (1):
fs: Rename mapping private members

Randy Dunlap (3):
userns: eliminate many kernel-doc warnings
fs/hfsplus: wrapper.c: fix kernel-doc warnings
ntfs: dir.c: fix kernel-doc function parameter warnings

YangXin (1):
fs: namei: Fix spelling mistake "Retuns" to "Returns"

MAINTAINERS | 21 +--
arch/x86/kvm/hyperv.c | 2 +-
arch/x86/kvm/xen.c | 2 +-
drivers/accel/habanalabs/common/device.c | 2 +-
drivers/android/binder.c | 2 +-
drivers/fpga/dfl.c | 2 +-
drivers/gpu/drm/drm_syncobj.c | 6 +-
drivers/gpu/drm/i915/gvt/interrupt.c | 13 +-
drivers/infiniband/hw/mlx5/devx.c | 2 +-
drivers/misc/ocxl/file.c | 2 +-
drivers/s390/cio/vfio_ccw_chp.c | 2 +-
drivers/s390/cio/vfio_ccw_drv.c | 4 +-
drivers/s390/cio/vfio_ccw_ops.c | 6 +-
drivers/s390/crypto/vfio_ap_ops.c | 2 +-
drivers/usb/gadget/function/f_fs.c | 4 +-
drivers/vdpa/vdpa_user/vduse_dev.c | 8 +-
drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c | 2 +-
drivers/vfio/pci/vfio_pci_core.c | 6 +-
drivers/vfio/pci/vfio_pci_intrs.c | 12 +-
drivers/vfio/platform/vfio_platform_irq.c | 4 +-
drivers/vhost/vdpa.c | 4 +-
drivers/vhost/vhost.c | 10 +-
drivers/vhost/vhost.h | 2 +-
drivers/virt/acrn/ioeventfd.c | 2 +-
drivers/xen/privcmd.c | 2 +-
fs/aio.c | 85 +++++++---
fs/attr.c | 2 +-
fs/btrfs/extent_io.c | 52 +++---
fs/btrfs/subpage.c | 4 +-
fs/buffer.c | 108 ++++++------
fs/dax.c | 2 +-
fs/direct-io.c | 2 +-
fs/eventfd.c | 46 ++----
fs/ext4/inode.c | 4 +-
fs/file.c | 97 ++++++-----
fs/file_table.c | 22 +--
fs/gfs2/glock.c | 2 +-
fs/gfs2/ops_fstype.c | 2 +-
fs/hfsplus/wrapper.c | 5 +-
fs/hugetlbfs/inode.c | 4 +-
fs/inode.c | 22 +--
fs/internal.h | 3 +-
fs/mnt_idmapping.c | 159 +++++++++++-------
fs/namei.c | 31 ++--
fs/namespace.c | 3 +-
fs/nfs/write.c | 12 +-
fs/nilfs2/inode.c | 4 +-
fs/ntfs/aops.c | 10 +-
fs/ntfs/dir.c | 3 +-
fs/open.c | 5 +-
fs/pipe.c | 24 ++-
fs/posix_acl.c | 4 +-
fs/proc/task_mmu.c | 3 +-
fs/reiserfs/stree.c | 2 +-
fs/stat.c | 2 +-
fs/super.c | 2 +-
include/linux/eventfd.h | 17 +-
include/linux/fdtable.h | 19 ++-
include/linux/file.h | 12 +-
include/linux/fs.h | 34 ++--
include/linux/mnt_idmapping.h | 3 -
include/linux/uidgid.h | 13 ++
include/linux/writeback.h | 1 -
include/net/scm.h | 9 +
io_uring/io_uring.c | 4 +-
io_uring/openclose.c | 2 +-
kernel/pid.c | 2 +-
kernel/seccomp.c | 2 +-
kernel/user_namespace.c | 20 +--
kernel/watch_queue.c | 2 +-
mm/hugetlb.c | 2 +-
mm/memcontrol.c | 10 +-
mm/migrate.c | 6 +-
mm/vmpressure.c | 2 +-
net/compat.c | 2 +-
net/core/scm.c | 2 +-
samples/vfio-mdev/mtty.c | 4 +-
tools/testing/selftests/Makefile | 1 +
.../selftests/filesystems/overlayfs/.gitignore | 2 +
.../selftests/filesystems/overlayfs/Makefile | 7 +
.../selftests/filesystems/overlayfs/dev_in_maps.c | 182 +++++++++++++++++++++
.../testing/selftests/filesystems/overlayfs/log.h | 26 +++
virt/kvm/eventfd.c | 4 +-
83 files changed, 784 insertions(+), 456 deletions(-)
create mode 100644 tools/testing/selftests/filesystems/overlayfs/.gitignore
create mode 100644 tools/testing/selftests/filesystems/overlayfs/Makefile
create mode 100644 tools/testing/selftests/filesystems/overlayfs/dev_in_maps.c
create mode 100644 tools/testing/selftests/filesystems/overlayfs/log.h

Next message: Heikki Krogerus: "Re: [PATCH] usb: typec: tipd: fix use of device-specific init function"
Previous message: Greg Kroah-Hartman: "[PATCH] coresight: make coresight_bustype const"
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