src/sys/compat/linux/linux_file.h, branch releng/13.4

sys: Remove $FreeBSD$: two-line .h pattern

2023-08-23T17:43:20+00:00

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

Similar commit in current:
(cherry picked from commit 95ee2897e98f)

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

2023-07-25T15:13:49+00:00

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with:		pfg
MFC After:		3 days
Sponsored by:		Netflix

(cherry picked from commit 4d846d260e2b9a3d4d0a701462568268cbfe7a5b)

linux(4): Implement close_range over native

2023-06-29T10:50:41+00:00

Handling of the CLOSE_RANGE_UNSHARE flag is not implemented due to
difference in fd unsharing mechanism in the Linux and FreeBSD.

Reviewed by:		mjg
Differential revision:	https://reviews.freebsd.org/D39398
MFC after:		2 weeks

(cherry picked from commit 71bc17803edfaad545f0c1f1111ca892aed7a5c4)

linux(4): Add AT_NO_AUTOMOUNT to statx.

2022-06-17T19:33:43+00:00

Specific to Linux AT_NO_AUTOMOUNT flag tells the kernel to not automount the
terminal component of pathname if it is a directory that is an automount point.
As it is the default for FreeBSD silencly ignore this flag.

glibc-2.34 uses this flag in the stat64 system calls which is used by i386.

Reviewed by:		trasz
Differential revision:  https://reviews.freebsd.org/D31524
MFC after:		2 weeks

(cherry picked from commit ff39d74aa99a49749d1de26dc1f6b1e1bfebceb0)

linux(4): Plug in aarch64 fcntl flags.

2022-06-17T19:33:27+00:00

Fixes opendir() libc function.

Differential Revision:	https://reviews.freebsd.org/D31357
MFC after:		2 weeks

(cherry picked from commit fc37be246021ee9b7110c9f506141c2bf0bc9fb0)

linux: implement O_PATH

2022-02-13T21:06:37+00:00

Reviewed By:	kib
Sponsored By:	EPSRC
Differential Revision:	https://reviews.freebsd.org/D29773

(cherry picked from commit 1663120ae452fe3783c74ce40522caf0e2327608)

linux: extend the LINUX_O_ constants to make room for O_PATH

2022-02-13T21:06:37+00:00

No functional changes.

Sponsored By:	EPSRC

(cherry picked from commit 1b11173c00d84d4a25cc8aa3c6c69cc15696b0ec)

linux(4): Implement name_to_handle_at(), open_by_handle_at()

2020-11-17T19:51:47+00:00

They are similar to our getfhat(2) and fhopen(2) syscalls.

Differential Revision:	https://reviews.freebsd.org/D27111

linuxolator: implement memfd_create syscall

2020-06-29T03:09:14+00:00

This effectively mirrors our libc implementation, but with minor fudging --
name needs to be copied in from userspace, so we just copy it straight into
stack-allocated memfd_name into the correct position rather than allocating
memory that needs to be cleaned up.

The sealing-related fcntl(2) commands, F_GET_SEALS and F_ADD_SEALS, have
also been implemented now that we support them.

Note that this implementation is still not quite at feature parity w.r.t.
the actual Linux version; some caveats, from my foggy memory:

- Need to implement SHM_GROW_ON_WRITE, default for memfd (in progress)
- LTP wants the memfd name exposed to fdescfs
- Linux allows open() of an fdescfs fd with O_TRUNC to truncate after dup.
  (?)

Interested parties can install and run LTP from ports (devel/linux-ltp) to
confirm any fixes.

PR:		240874
Reviewed by:	kib, trasz
Differential Revision:	https://reviews.freebsd.org/D21845

Replace LINUX_FASYNC with LINUX_O_ASYNC; no functional changes.

2020-06-11T14:09:43+00:00

MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D25218