sbin/hammer: Add /* not reached */

that were originally missing.
Recommended by dillon@.
No diff in sbin/hammer binary when assert(3) is disabled.

sbin/hammer: Partly bring back removed braces from 52e2f1b5

based on comments from dillon@.

(dillon) three types, yah. (1) multi-line condition in if(), (2) if TRUE or FALSE body spans more than o

sbin/hammer: Partly bring back removed braces from 52e2f1b5

based on comments from dillon@.

(dillon) three types, yah. (1) multi-line condition in if(), (2) if TRUE or FALSE body spans more than one line, put braces around both
(dillon) (including if a comment is part of the body)

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sbin/hammer: Cleanup blocks with a single statement

This commit basically does the same as what Linux kernel's coding
style mentions for braces, which is basically the same with BSDs.
https://github

sbin/hammer: Cleanup blocks with a single statement

This commit basically does the same as what Linux kernel's coding
style mentions for braces, which is basically the same with BSDs.
https://github.com/torvalds/linux/blob/master/Documentation/process/coding-style.rst#3-placing-braces-and-spaces

No diff in sbin/hammer/hammer binary when assert(3) is disabled.

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hammer - HAMMER Version 7

* Add support for version 7 which changes the CRC mechanic from the
old slow CRC code to the faster ISCSI CRC code. We don't use the CRC
instruction yet but ths base I

hammer - HAMMER Version 7

* Add support for version 7 which changes the CRC mechanic from the
old slow CRC code to the faster ISCSI CRC code. We don't use the CRC
instruction yet but ths base ISCSI CRC from FreeBSD is 6x faster than
the CRC code we were using before.

* Change newfs_hammer default to version 7 (for master).

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sbin/hammer: Change fprintf/exit to err variants [2/2]

Change
fprintf(stderr, ...); exit(1);
and
perror(...); exit(1);
to
err(1, ...) or errx(1, ...);
where possible for consistency.

This commit is

sbin/hammer: Change fprintf/exit to err variants [2/2]

Change
fprintf(stderr, ...); exit(1);
and
perror(...); exit(1);
to
err(1, ...) or errx(1, ...);
where possible for consistency.

This commit is just conversion to err(3) variants.
Messages themselves are not changed, except for removing
strerror(errno) for err(3), and removing trailing \n,
though err variants add program name in the messages.

err(3) and variants are non standard BSD functions, but HAMMER
userspace has been using BSD stuff aside from the existing
err/errx. Also note that err(3) is available in Linux as well.

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Initial import of binutils 2.22 on the new vendor branch

Future versions of binutils will also reside on this branch rather
than continuing to create new binutils branches for each new version.

hammer(8): whitespace cleanup: delete blank at end of line

hammer: minor doc update

* SYNOPSIS for -f changed to just '-f blkdevs'

* sync SYNOPSIS & usage()

* s/filesystem/file system/ (was already used in most places)

* add description for show-undo

hammer: minor doc update

* SYNOPSIS for -f changed to just '-f blkdevs'

* sync SYNOPSIS & usage()

* s/filesystem/file system/ (was already used in most places)

* add description for show-undo

* fix a few minor typos

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HAMMER - Add version 3 meta-data features

* These features are available for filesystem version 3. Version 2 may be upgraded
to version 3 in-place. These features are not usable until you upgrad

HAMMER - Add version 3 meta-data features

* These features are available for filesystem version 3. Version 2 may be upgraded
to version 3 in-place. These features are not usable until you upgrade.

* Definitively store snapshots in filesystem meta-data. Softlinks still
work. The new snapshot directives (snap, snaplo, snapq, etc) also allow
you to specify up to a 64-character note for each snapshot you create.
The snapls directive may be used to list all snapshots stored in meta-data.

'hammer cleanup' will move all softlink-based snapshots residing in the
<fs>/snapshots directory to meta-data when it next snapshots the filesystem
(within a day of upgrading, usually). The snapshot softlinks are left intact.

Storing snapshot information in meta-data means that accidental wipes of
your <fs>/snapshots directory will NOT cause later hammer cleanup runs to
destroy your snapshots! The meta-data snapshots are also removed if you
do a prune-everything, or through normal pruning expirations, and thus
'hammer snapls' will definitively list your valid snapshots.

This feature also means that you can obtain a definitive list of snapshots
available on mirroring slaves.

* Definitively store the hammer cleanup configuration file in filesystem meta-data.
This meta-data is not mirrored. 'hammer cleanup' will move <fs>/snapshots/config
to the new meta-data config and deletes <fs>/snapshots/config after you've upgraded
the filesystem. You can edit the configuration with the 'viconfig' directive.

* The HAMMER utility has new directives: snap, snaplo, snapq, snaprm, snapls,
config, and viconfig.

* WARNING! Filesystems mounted 'nohistory' and files chflagged similarly do not
have snapshots, but the hammer utility still allows the directives to be run.
This is a bug that needs to be fixed.

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Allow an error code to be returned in the head.error element of the ioctl.

HAMMER utilities:

* Add the 'version' and 'version-upgrade' directives.

hammer - Fix version output

Do not try to display WIP version if there isn't one.