swap_dev_info() does not require Giant, so Giant locking around
the loop in linprocfs_doswaps() is useless.
List of the registered filesystems is protected by vfsconf_sx,
not by the Giant. Adjust li

swap_dev_info() does not require Giant, so Giant locking around
the loop in linprocfs_doswaps() is useless.
List of the registered filesystems is protected by vfsconf_sx,
not by the Giant. Adjust linprocfs_dofilesystems() correspondingly.

Approved by: re (delphij), des (linprocfs maintainer)
Sponsored by: The FreeBSD Foundation
MFC after: 1 week

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linprocfs_doproclimits: Initialize error return before use

Reported by: Coverity
CID: 1354623
Sponsored by: EMC / Isilon Storage Division

linprocfs: Don't print uninitialized values

Reported by: Coverity
CID: 1354624
Sponsored by: EMC / Isilon Storage Division

MFH

Sponsored by: The FreeBSD Foundation

Cleanup unnecessary semicolons from the kernel.

Found with devel/coccinelle.

More complete implementation of /proc/self/limits.
Fix the way the code accesses process limits struct - pointed out by mjg@.

PR: 207386
Reviewed by: no objection form des@
MFC after: 3 weeks

Merge ^/head r295845 through r295901.

MFH

Sponsored by: The FreeBSD Foundation

Implement /proc/$$/limits.

PR: 207386
Submitted by: Szymon Śliwa <knight.erraunt@gmail.com>
MFC after: 3 weeks

Merge from head

Catch up with head, primarily for the 1.14.4.0 firmware.

Merge ^/head r285341 through r285792.

Add support to the jail framework to be able to mount linsysfs(5) and
linprocfs(5).

Differential Revision: D2846
Submitted by: Nikolai Lifanov <lifanov@mail.lifanov.com>
Reviewed by: jamie

linprocfs: vref the vnode passed to vn_fullpath

Catch up with HEAD (r280229-r284686).

Merge from head

Merged ^/head r283871 through r284187.

Provide vnode in memory map info for files on tmpfs

When providing memory map information to userland, populate the vnode pointer
for tmpfs files. Set the memory mapping to appear as a vnode type,

Provide vnode in memory map info for files on tmpfs

When providing memory map information to userland, populate the vnode pointer
for tmpfs files. Set the memory mapping to appear as a vnode type, to match
FreeBSD 9 behavior.

This fixes the use of tmpfs files with the dtrace pid provider,
procstat -v, procfs, linprocfs, pmc (pmcstat), and ptrace (PT_VM_ENTRY).

Submitted by: Eric Badger <eric@badgerio.us> (initial revision)
Obtained from: Dell Inc.
PR: 198431
MFC after: 2 weeks
Reviewed by: jhb
Approved by: kib (mentor)

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MFH: r282615-r283655

Sponsored by: The FreeBSD Foundation

Merge sync of head

Simplify linprocfs_doprocenviron(). Remove extra proc visibility checks
and initialize pn_vis by well known procfs_candebug().

Convert Linux sigsets before showing.
Linux kernel displays sigset always as 16x4 bit mask.

Add support for /proc/<pid>/auxv.

Add vdso and stack names to the /proc/self/maps.

Introduce a new module linux_common.ko which is intended for the
following primary purposes:

1. Remove the dependency of linsysfs and linprocfs modules from linux.ko,
which will be architecture spec

Introduce a new module linux_common.ko which is intended for the
following primary purposes:

1. Remove the dependency of linsysfs and linprocfs modules from linux.ko,
which will be architecture specific on amd64.

2. Incorporate into linux_common.ko general code for platforms on which
we'll support two Linuxulator modules (for both instruction set - 32 & 64 bit).

3. Move malloc(9) declaration to linux_common.ko, to enable getting memory
usage statistics properly.

Currently linux_common.ko incorporates a code from linux_mib.c and linux_util.c
and linprocfs, linsysfs and linux kernel modules depend on linux_common.ko.

Temporarily remove dtrace garbage from linux_mib.c and linux_util.c

Differential Revision: https://reviews.freebsd.org/D1072
In collaboration with: Vassilis Laganakos.

Reviewed by: trasz

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