sys: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remov

sys: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

Sponsored by: Netflix

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Move kern_extattr_* prototypes to <sys/syscallsubr.h>

All of the kern_* prototypes belong in this header. While here, sort
the prototypes by function name.

Reviewed by: dchagin
Fixes: 6453d4240f6

Move kern_extattr_* prototypes to <sys/syscallsubr.h>

All of the kern_* prototypes belong in this header. While here, sort
the prototypes by function name.

Reviewed by: dchagin
Fixes: 6453d4240f6b vfs: Export exattr methods to reuse by Linuxulator
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D41766

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

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

vfs: Export exattr methods to reuse by Linuxulator

Reviewed by:
Differential revision: https://reviews.freebsd.org/D35543
MFC after: 1 month

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

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

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

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

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vfs: stop using NDFREE

It provides nothing but a branchfest and next to no consumers want it
anyway.

Tested by: pho

vfs: introduce V_PCATCH to stop abusing PCATCH

vfs: NDFREE(&nd, NDF_ONLY_PNBUF) -> NDFREE_PNBUF(&nd)

vfs: remove the unused thread argument from NDINIT*

See b4a58fbf640409a1 ("vfs: remove cn_thread")

Bump __FreeBSD_version to 1400043.

O_PATH: allow vfs_extattr syscalls

These calls do operate on vnodes only, not file contents.
This is useful for e.g. the xdg-document-portal fuse filesystem.

Reviewed by: kib, markj
MFC after: 1 we

O_PATH: allow vfs_extattr syscalls

These calls do operate on vnodes only, not file contents.
This is useful for e.g. the xdg-document-portal fuse filesystem.

Reviewed by: kib, markj
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D32438

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vfs_extattr: Allow extattr names up to the full max

Extattr names are allowed to be 255 bytes -- not 254 bytes plus trailing
NUL. Provide a 256 buffer so that copyinstr() has room for the trailing

vfs_extattr: Allow extattr names up to the full max

Extattr names are allowed to be 255 bytes -- not 254 bytes plus trailing
NUL. Provide a 256 buffer so that copyinstr() has room for the trailing
NUL.

Re-enable test for maximal name lengths.

PR: 208965
Reported by: asomers
Reviewed by: asomers
Differential Revision: https://reviews.freebsd.org/D24584

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Merge ^/head r357931 through r357965.

vfs: use new capsicum helpers

Merge ^/head r357270 through r357349.

Remove duplicated empty lines from kern/*.c

No functional changes.

vfs: drop the mostly unused flags argument from VOP_UNLOCK

Filesystems which want to use it in limited capacity can employ the
VOP_UNLOCK_FLAGS macro.

Reviewed by: kib (previous version)
Differenti

vfs: drop the mostly unused flags argument from VOP_UNLOCK

Filesystems which want to use it in limited capacity can employ the
VOP_UNLOCK_FLAGS macro.

Reviewed by: kib (previous version)
Differential Revision: https://reviews.freebsd.org/D21427

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Merge ^/head r343712 through r343806.

extattr_list_vp: Narrow locked section somewhat

Suggested by: mjg
Reviewed by: kib, mjg
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D19083

extattr_list_vp: Only take shared vnode lock

List is a 'read'-type operation that does not modify shared state; it's safe
for multiple thread to proceed concurrently. This is reflected in the vnode

extattr_list_vp: Only take shared vnode lock

List is a 'read'-type operation that does not modify shared state; it's safe
for multiple thread to proceed concurrently. This is reflected in the vnode
operation LISTEXTATTR locking protocol specification, which only requires a
shared lock.

(Similar to previous r248933.)

Reported by: Case van Rij <case.vanrij AT isilon.com>
Reviewed by: kib, mjg
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D19082

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Reduce duplication in extattr_*_(file|link) syscalls.

Reviewed by: rwatson
Obtained from: CheriBSD
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D14173

ANSIfy syscall implementations.

Reviewed by: rwatson
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D14172

Fix kernel build if MAC is not defined.

Reported by: Ravi Pokala, Andrew Turner
Approved by: pfg (mentor)
MFC after: 1 week

Move buffer size checks outside of the vnode locks.

Reviewed by: kib, cem, pfg (mentor)
Approved by: pfg (mentor)
MFC after: 1 weeks

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

Move buffer size checks outside of the vnode locks.

Reviewed by: kib, cem, pfg (mentor)
Approved by: pfg (mentor)
MFC after: 1 weeks

Differential Revision: https://reviews.freebsd.org/D13405

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sys/kern: adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone

sys/kern: adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

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Catch up with HEAD (r280229-r284686).