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

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

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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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Add linux_to_bsd_errtbl[], mapping Linux errnos to their BSD counterparts.
This will be used by fuse(4).

Reviewed by: asomers
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Rev

Add linux_to_bsd_errtbl[], mapping Linux errnos to their BSD counterparts.
This will be used by fuse(4).

Reviewed by: asomers
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D26974

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Make linux_errtbl[] static.

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D27004

Add defines for Linux errno values and use them to make linux_errtbl[]
more readable. While here, add linux_check_errtbl() function to make
sure we don't leave holes.

No objections: emaste (earlier

Add defines for Linux errno values and use them to make linux_errtbl[]
more readable. While here, add linux_check_errtbl() function to make
sure we don't leave holes.

No objections: emaste (earlier version)
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D26972

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Make linux_errtbl a bit more readable by using named initializers.

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D26970

Create new EINTEGRITY error with message "Integrity check failed".

An integrity check such as a check-hash or a cross-correlation failed.
The integrity error falls between EINVAL that identifies err

Create new EINTEGRITY error with message "Integrity check failed".

An integrity check such as a check-hash or a cross-correlation failed.
The integrity error falls between EINVAL that identifies errors in
parameters to a system call and EIO that identifies errors with the
underlying storage media. EINTEGRITY is typically raised by intermediate
kernel layers such as a filesystem or an in-kernel GEOM subsystem when
they detect inconsistencies. Uses include allowing the mount(8) command
to return a different exit value to automate the running of fsck(8)
during a system boot.

These changes make no use of the new error, they just add it. Later
commits will be made for the use of the new error number and it will
be added to additional manual pages as appropriate.

Reviewed by: gnn, dim, brueffer, imp
Discussed with: kib, cem, emaste, ed, jilles
Differential Revision: https://reviews.freebsd.org/D18765

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Map FreeBSD EDOOFUS to Linux EINVAL

Previously EDOOFUS mapped to EBUSY. EINVAL seems more appropriate.

Discussed with: cem
MFC after: 1 week
Sponsored by: Turing Robotic Industries Inc.

Share Linux errno table with libsysdecode

Requested by: jhb
Reviewed by: jhb
Sponsored by: Turing Robotic Industries Inc.