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freebsd-dev/sys/cddl/boot/zfs
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Mariusz Zaborski 277f38abff zfs: add an option to the bootloader to rewind the ZFS checkpoint 
The checkpoints are another way of keeping the state of ZFS.
During the rewind, the pool has to be exported.
This makes checkpoints unusable when using ZFS as root.
Add the option to rewind the ZFS checkpoint at the boot time.
If checkpoint exists, a new option for rewinding a checkpoint will appear in
the bootloader menu.
We fully support boot environments.
If the rewind option is selected, the boot loader will show a list of
boot environments that existed before the checkpoint.

Reviewed by:	tsoome, allanjude, kevans (ok with high-level overview)
Differential Revision:	https://reviews.freebsd.org/D24920
2020-08-18 19:48:04 +00:00
..
blkptr.c
fletcher.c Add SHA512, skein, large blocks support for loader zfs. 2016-08-18 00:37:07 +00:00
lzjb.c
README
sha256.c Add SHA512, skein, large blocks support for loader zfs. 2016-08-18 00:37:07 +00:00
skein_zfs.c Add SHA512, skein, large blocks support for loader zfs. 2016-08-18 00:37:07 +00:00
zfsimpl.h zfs: add an option to the bootloader to rewind the ZFS checkpoint 2020-08-18 19:48:04 +00:00
zfssubr.c loader: replace zfs_alloc/zfs_free with malloc/free 2020-02-26 18:12:12 +00:00
zle.c

README 

$FreeBSD$

This directory contains various files derived from CDDL sources that
are used by the ZFS bootstrap:

    fletcher.c			checksum support
    sha256.c			checksum support
    lz4.c			compression support
    lzjb.c			compression support
    blkptr.c			ZFS embedded-data block pointers support
    zfssubr.c			checksum, compression and raidz support
    zfsimpl.h			mostly describing the physical layout

The files fletcher.c, lzjb.c, lz4.c, sha256.c and blkptr.c are largely identical
to the ZFS base code (with write support removed) and could be shared but that
might complicate future imports from Illumos.