src/sys/compat/linux/linux_file.c, branch main

linuxolator: translate LINUX_RENAME_NOREPLACE into our AT_RENAME_NOREPLACE

2026-03-05T23:46:53+00:00

Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D55539

kern_renameat(9): add flags argument

2026-03-05T23:46:53+00:00

Reviewed by:	markj
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D55539

kern/vfs_unmount.c: promote flags to uint64_t

2026-02-09T18:47:18+00:00

to prevent sign-extension, causing unexpected flags to be passed to
dounmount().  The mnt_flags and MNT_* constants are 64bit wide.

Suggested and reviewed by:	jah
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D55197

linux_file.c: Fix handling of NFS getdents() emulation

2026-02-07T22:12:55+00:00

Bugzilla PR#292282 reports a problem, where a Linux
binary running in the Linuxulator gets bogus entries
in a readdir()/getdents() reply when the directory is
an NFS mount.

This appears to be caused by the NFS client including
entries with d_fileno == 0, which are always ignored by
BSD, but are not ignored by Linux.

This patch filters out the "d_fileno == 0" entries and
the reporter of the bugzilla PR notes that it fixes the
problem for him.

It could be argued that the NFS client should filter out
the "d_fileno == 0" entries, but the NFS client readdir
code is "fragile" and any change to it runs a significant
risk of causing regression type problems.

As such, since the LInuxulator is already broken for this
case, it seems safer to filter them out there.

PR:	292282
Tested by:	Jerry Williams 
Reviewed by:	markj
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D54679

linux: Implement F_DUPFD_QUERY fcntl with kcmp(2) KCMP_FILE

2025-12-11T17:32:10+00:00

Signed-off-by: Ricardo Branco 
Reviewed by:	kib
Pull Request:	https://github.com/freebsd/freebsd-src/pull/1920

kern: allow kern_shm_open2 of an anonymous preconstructed shmfd

2025-07-26T21:31:40+00:00

The motivation here is for future changes to the coredump code to be
able to build up a coredump into a shmfd instead of a vnode, which then
gets tapped out to userland via a character device.  This also opens up
the possibility that it's useful for the kernel to be able to construct
a shmfd and pass it out to a process that shouldn't need to write to it.

Reviewed by:	emaste, kib, markj
Differential Revision:	https://reviews.freebsd.org/D51336

linux: Add inotify support

2025-07-04T14:42:34+00:00

Implement the Linux inotify system calls using the native implementation
in vfs_inotify.c.

PR:		240874
Reviewed by:	brooks
MFC after:	3 months
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D50761

faccessat(2): Honor AT_SYMLINK_NOFOLLOW

2024-08-11T15:49:06+00:00

Make the system call honor `AT_SYMLINK_NOFOLLOW`.

Also enable this from `linux_faccessat2` where the issue arised the first time.
Update manual pages accordingly.

PR:			275295
Reported by:		kenrap@kennethraplee.com
Approved by:		kib@
Differential Revision:	https://reviews.freebsd.org/D46267

linux: Export linux_common_openflags()

2024-05-23T19:40:46+00:00

Reviewed by: imp, kib
Pull Request: https://github.com/freebsd/freebsd-src/pull/1248

Abstract UIO allocation and deallocation.

2024-02-10T16:38:04+00:00

Introduce the allocuio() and freeuio() functions to allocate and
deallocate struct uio. This hides the actual allocator interface, so it
is easier to modify the sub-allocation layout of struct uio and the
corresponding iovec array.

Obtained from:	CheriBSD
Reviewed by:	kib, markj
MFC after:	2 weeks
Sponsored by:	CHaOS, EPSRC grant EP/V000292/1
Differential Revision:	https://reviews.freebsd.org/D43711