src/sys/compat/linux/linux_stats.c, branch releng/15.0

linuxulator: ignore AT_NO_AUTOMOUNT for all stat variants

2024-09-24T17:58:42+00:00

Commit ff39d74aa99a ignored AT_NO_AUTOMOUNT for statx(), but did not
change fstat64() or newfstatat(), which also take an equivalent flags
argument.  Add a linux_to_bsd_stat_flags() helper and use it in all
three places.

PR:		281526
Reviewed by:	trasz
Sponsored by:	The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D46711

linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743

2023-08-18T10:12:02+00:00

sys: Remove $FreeBSD$: one-line .c pattern

2023-08-16T17:54:36+00:00

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

linux(4): Use pwd_altroot() to tell namei() about ABI root path

2023-05-29T08:16:46+00:00

PR:			72920
Differential Revision:	https://reviews.freebsd.org/D40090
MFC after:		2 month

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

2023-05-12T16:44:03+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

linux(4): Uniformly dev_t arguments translation

2023-04-28T08:55:05+00:00

The two main uses of dev_t are in struct stat and as a parameter of the
mknod system calls.
As of version 2.6.0 of the Linux kernel, dev_t is a 32-bit quantity
with 12 bits set asaid for the major number and 20 for the minor number.
The in-kernel dev_t encoded as MMMmmmmm, where M is a hex digit of the
major number and m is a hex digit of the minor number.
The user-space dev_t encoded as mmmM MMmm, where M and m is the major
and minor numbers accordingly. This is downward compatible with legacy
systems where dev_t is 16 bits wide, encoded as MMmm.
In glibc dev_t is a 64-bit quantity, with 32-bit major and minor numbers,
encoded as MMMM Mmmm mmmM MMmm. This is downward compatible with the Linux
kernel and with legacy systems where dev_t is 16 bits wide.
In the FreeBSD dev_t is a 64-bit quantity. The major and minor numbers
are encoded as MMMmmmMm, therefore conversion of the device numbers between
Linux user-space and FreeBSD kernel required.

linux(4): Add a dedicated fstat() implementation

2023-04-28T08:55:04+00:00

In between kern_fstat() and translate_fd_major_minor(), another process
having the same filedesc could modify or close fd.

Reviewed by:		kib
Differential Revision:	https://reviews.freebsd.org/D39763

linux(4): Add a dedicated statat() implementation

2023-04-28T08:55:04+00:00

Get rid of calling Linux stat translation hook and specific to Linux
handling of non-vnode dirfd from kern_statat(),

Reviewed by:		kib, mjg
Differential revision:	https://reviews.freebsd.org/D35474

linux(4): Rename obsolete old struct l_stat to struct l_old_stat

2023-04-28T08:54:59+00:00

linux(4): Move statx_copyout() close to linux_statx()

2023-04-28T08:54:59+00:00

Just for future changes of the conditional Linuxulator build. We need
a small refactoring of the MI code to help porting Linuxulator to other
platforms.