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

Remove /^/[*/]\s*\$FreeBSD\$.*\n/

msdosfs: clusterfree() is used only in error handling cases

Change its return type to void, because its result is ignored in both
call sites. Remove oldcnp argument as well, it is NULL always.

Sug

msdosfs: clusterfree() is used only in error handling cases

Change its return type to void, because its result is ignored in both
call sites. Remove oldcnp argument as well, it is NULL always.

Suggested and reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D33721

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Merge ^/head r352105 through r352307.

buf: Add B_INVALONERR flag to discard data

Setting the B_INVALONERR flag before a synchronous write causes the buf
cache to forcibly invalidate contents if the write fails (BIO_ERROR).

This is inte

buf: Add B_INVALONERR flag to discard data

Setting the B_INVALONERR flag before a synchronous write causes the buf
cache to forcibly invalidate contents if the write fails (BIO_ERROR).

This is intended to be used to allow layers above the buffer cache to make
more informed decisions about when discarding dirty buffers without
successful write is acceptable.

As a proof of concept, use in msdosfs to handle failures to mark the on-disk
'dirty' bit during rw mount or ro->rw update.

Extending this to other filesystems is left as future work.

PR: 210316
Reviewed by: kib (with objections)
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D21539

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Merge ^/head r351317 through r351731.

makefs: share fat.h between kernel msdosfs and makefs

There is no reason to duplicate this file when it can be trivially
shared (just exposing one section previously under #ifdef _KERNEL).

Reviewed

makefs: share fat.h between kernel msdosfs and makefs

There is no reason to duplicate this file when it can be trivially
shared (just exposing one section previously under #ifdef _KERNEL).

Reviewed by: imp, cem
MFC with: r351273
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D21346

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MFH @ r337607, in preparation for boarding

Revert msdosfs MAKEFS #ifdef changes from r319870

These changes are not needed for current msdosfs makefs WIP.

Submitted by: Siva Mahadevan
Sponsored by: The FreeBSD Foundation

sys/fs: further 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

sys/fs: further 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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Merge ^/head r319801 through r320041.

msdosfs: adjust #ifdefs to be similar to NetBSD

- Add header guards where missing
- Make parts available for use in makefs

Sponsored by: The FreeBSD Foundation

Merge ^/head r318560 through r318657.

msdosfs: correct constant and typo in comment

Revisions:
fat.h 1.5 1.6

Obtained from: NetBSD
Sponsored by: The FreeBSD Foundation

msdosfs: capitalize FAT appropriately

Diff reduction with NetBSD, including some nearby minor whitespace or
style fixes.

Obtained from: NetBSD
Sponsored by: The FreeBSD Foundation

/* -> /*- for copyright notices, minor format tweaks as necessary

Make msdosfs support the dirty flag in FAT16 and FAT32.
Enable lockf support.

PR: 55861
Submitted by: Jun Su <junsu@m-net.arbornet.org> (original version)
Reviewed by: make universe

Remove __P.

Axe more unused GEMDOS code that was #ifdef atari.

PR: kern/21809
Submitted by: <mbendiks@eunet.no>

Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL"
is an application space macro and the applications are supposed to be free
to use it as they please (but cannot). This is cons

Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL"
is an application space macro and the applications are supposed to be free
to use it as they please (but cannot). This is consistant with the other
BSD's who made this change quite some time ago. More commits to come.

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$Id$ -> $FreeBSD$

Update MSDOSFS code using NetBSD's msdosfs as a guide to support
FAT32 partitions. Unfortunately, we looked around here at
Walnut Creek CDROM for any newer FAT32-supporting versions
of Win95 and we

Update MSDOSFS code using NetBSD's msdosfs as a guide to support
FAT32 partitions. Unfortunately, we looked around here at
Walnut Creek CDROM for any newer FAT32-supporting versions
of Win95 and we were unsuccessful; only the older stuff here.
So this is untested beyond simply making sure it compiles and
someone with access to an actual FAT32 fs will have
to let us know how well it actually works.
Submitted by: Dmitrij Tejblum <dima@tejblum.dnttm.rssi.ru>
Obtained from: NetBSD

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Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

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staticize private parts.

Remove trailing whitespace.