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linprocfs: Correct sysfs /proc/<pid>/mountinfo entry

Technically mount source could be an arbitrary string (since it's
effectively ignored), but it's common to repeat fs type there.

(cherry picked from commit b9752d5d1cea30a39e89c83ea3aeb539581418cb)

linprocfs: Correct sysfs /proc/<pid>/mountinfo entry

Technically mount source could be an arbitrary string (since it's
effectively ignored), but it's common to repeat fs type there.

linprocfs: Properly reset error variable for mtab generation

Both functions linprocfs_domtab() and linprocfs_doprocmountinfo() are
logically identical, but the former fails with ECANCELED because error
is not reset after the for loop.

Reviewed by:    jrm, fluffy
MFC after:      2 weeks
Differential Revision:  https://reviews.freebsd.org/D47865

(cherry picked from commit 58c7db14cd71c41f59d80d26d921782c0c27d523)

linprocfs: Properly reset error variable for mtab generation

Both functions linprocfs_domtab() and linprocfs_doprocmountinfo() are
logically identical, but the former fails with ECANCELED because error
is not reset after the for loop.

Reviewed by:    jrm, fluffy
MFC after:      2 weeks
Differential Revision:  https://reviews.freebsd.org/D47865

(cherry picked from commit 58c7db14cd71c41f59d80d26d921782c0c27d523)

linprocfs: Properly reset error variable for mtab generation

Both functions linprocfs_domtab() and linprocfs_doprocmountinfo() are
logically identical, but the former fails with ECANCELED because error
is not reset after the for loop.

Reviewed by:    jrm, fluffy
MFC after:      2 weeks
Differential Revision:  https://reviews.freebsd.org/D47865

linprocfs: Add support for proc/sys/fs/mqueue/*

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

linprocfs: use %z for size_t arguments

64-bit doesn't care or give a warning, but i386 compile complains
(rightly) that these are size_t and need a %z modifier.

Fixes: 25a04527b706
Sponsored by:           Netflix

linprocfs: Add support for proc/sysvipc/{msg,sem,shm}

Reviewed by: imp,kib
Pull Request: https://github.com/freebsd/freebsd-src/pull/1232

Revert linprocfs commits

There's a race in these that I missed in my review that needs
to be resolved.

This reverts commit ee2e36686e846d412deac23344185f4b8a8c0285.
This reverts commit 02f481a30b8269c7cad24ec2920ca09751708a1e.
This reverts commit 099a81a4173bc5b121e50d4e27ea5fafdda8475b.

linprocfs: Really fix time_t type issue

The cast to (long) is wrong on all the other 32-bit platforms. (long
long) is the correct type on all platforms. Also, use a z modifier for
size_t which also fails on 32-bit platforms.

Fixes: 02f481a30b82
Sponsored by: Netflix

linprocfs: Fix i386 time type

Cast the time type to (long). This is correct on all architectures. On
i386, this promotes the int time_t to a long (which is also 32-bit). On
64-bit architectures, this promotes the 64-bit signed time_t to a 64-bit
signed int type.

Sponsored by:           Netflix

linprocfs: Add support for proc/sysvipc/{msg,sem,shm}

Signed-off-by: Ricardo Branco <rbranco at suse.de>
Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/1218

linprocfs: Avoid using a sysctl to get the CPU model string

This will fail if the reading process is in capability mode.  Just copy
the string directly.

PR:             276043
Reviewed by:    emaste, imp, kib
Reported and tested by: Ricardo Branco <rbranco at suse.com>
MFC after:      1 week
Differential Revision:  https://reviews.freebsd.org/D43281

(cherry picked from commit d74a742704eb81f0c6f4aa83e4cb0de26a81c400)

linprocfs: Avoid using a sysctl to get the CPU model string

This will fail if the reading process is in capability mode.  Just copy
the string directly.

PR:             276043
Reviewed by:    emaste, imp, kib
Reported and tested by: Ricardo Branco <rbranco at suse.com>
MFC after:      1 week
Differential Revision:  https://reviews.freebsd.org/D43281

(cherry picked from commit d74a742704eb81f0c6f4aa83e4cb0de26a81c400)

linprocfs: Avoid using a sysctl to get the CPU model string

This will fail if the reading process is in capability mode.  Just copy
the string directly.

PR:             276043
Reviewed by:    emaste, imp, kib
Reported and tested by: Ricardo Branco <rbranco at suse.com>
MFC after:      1 week
Differential Revision:  https://reviews.freebsd.org/D43281

sys: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by:           Netflix

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

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

Similar commit in current:
(cherry picked from commit 685dc743dc3b)

linprocfs(5): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743

linprocfs(5): Follow style(9), sort includes

Remove my middle name.

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

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

linprocfs: Rework according to the new ABI altroot facility

By 3d2fec7d the ABI prefix path added to the struct pwd.
Use it in the mounts, mountinfo filler functions.

Differential revision:  https://reviews.freebsd.org/D39438
MFC after:              2 month

linux(4): Migrate to IfAPI

Migrate linux and linprocfs to use the IfAPI interfaces instead of
direct ifnet accesses.
The code initially writed by jhibbits@, and adapted by me to 3ab3c9c2.

Reviewed by:            jhibbits
Differential Revision:  https://reviews.freebsd.org/D38735

linprocfs(4): Fixup process size in the /proc/pid/stat file

According to the Linux sources the kernel exposes a proces virtual
memory size via proc filesystem into the three files - stat, status
and statm. This is the struct mm->total_vm value adjusted to the
corresponding units - bytes, kilobytes and pages.

The fix is based on a fernape@ analysis.

PR:             265937
Reported by:    Ray Bellis
MFC after:      3 days

(cherry picked from commit a55b5a9aed3981fcec205e246436991d138c78a2)

linprocfs(4): Fixup process size in the /proc/pid/stat file

According to the Linux sources the kernel exposes a proces virtual
memory size via proc filesystem into the three files - stat, status
and statm. This is the struct mm->total_vm value adjusted to the
corresponding units - bytes, kilobytes and pages.

The fix is based on a fernape@ analysis.

Approved by:    re (delphij)
PR:             265937
Reported by:    Ray Bellis
MFC after:      3 days

(cherry picked from commit a55b5a9aed3981fcec205e246436991d138c78a2)
(cherry picked from commit 867e8404efed7a33553646b89588831db1a2102b)

linprocfs(4): Fixup process size in the /proc/pid/stat file

According to the Linux sources the kernel exposes a proces virtual
memory size via proc filesystem into the three files - stat, status
and statm. This is the struct mm->total_vm value adjusted to the
corresponding units - bytes, kilobytes and pages.

The fix is based on a fernape@ analysis.

PR:             265937
Reported by:    Ray Bellis
MFC after:      3 days

(cherry picked from commit a55b5a9aed3981fcec205e246436991d138c78a2)

linux(4): Consolidate a FreeBSD interface names translation code

We have some amount of interface names translation functions which are
differs by bugs implementation. Consolidates it in a one place.

Fixup loopback interface names translation and use ifnet methods and
accessors, where possible.

Approved by:            re (cperciva)
Reviewed by:            melifaro
Differential Revision:  https://reviews.freebsd.org/D38714
MFC after:              3 days
X-MFC with:             32fdc75fe7

(cherry picked from commit 3ab3c9c29cf0e5df8dbbaaf2003456445534bad8)
(cherry picked from commit a83551a52d1cfa8a756ef8dd298cab8042e27437)

linprocfs(4): Fixup process size in the /proc/pid/stat file

According to the Linux sources the kernel exposes a proces virtual
memory size via proc filesystem into the three files - stat, status
and statm. This is the struct mm->total_vm value adjusted to the
corresponding units - bytes, kilobytes and pages.

The fix is based on a fernape@ analysis.

PR:             265937
Reported by:    Ray Bellis
MFC after:      3 days

linux(4): Consolidate a FreeBSD interface names translation code

We have some amount of interface names translation functions which are
differs by bugs implementation. Consolidates it in a one place.

Fixup loopback interface names translation and use ifnet methods and
accessors, where possible.

Reviewed by:            melifaro
Differential Revision:  https://reviews.freebsd.org/D38714
MFC after:              3 days
X-MFC with:             32fdc75fe7

(cherry picked from commit 3ab3c9c29cf0e5df8dbbaaf2003456445534bad8)

linux(4): Consolidate a FreeBSD interface names translation code

We have some amount of interface names translation functions which are
differs by bugs implementation. Consolidates it in a one place.

Fixup loopback interface names translation and use ifnet methods and
accessors, where possible.

Reviewed by:            melifaro
Differential Revision:  https://reviews.freebsd.org/D38714
MFC after:              3 days
X-MFC with:             32fdc75fe7