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Add "compatibility" property for zpool feature sets

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Property to allow sets of features to be specified; for compatibility
with specific versions / releases / external systems. Influences
the behavior of 'zpool upgrade' and 'zpool create'. Initial man
page changes and test cases included.

Brief synopsis:

zpool create -o compatibility=off|legacy|file[,file...] pool vdev...

compatibility = off : disable compatibility mode (enable all features)
compatibility = legacy : request that no features be enabled
compatibility = file[,file...] : read features from specified files.
Only features present in *all* files will be enabled on the
resulting pool. Filenames may be absolute, or relative to
/etc/zfs/compatibility.d or /usr/share/zfs/compatibility.d (/etc
checked first).

Only affects zpool create, zpool upgrade and zpool status.

ABI changes in libzfs:

* New function "zpool_load_compat" to load and parse compat sets.
* Add "zpool_compat_status_t" typedef for compatibility parse status.
* Add ZPOOL_PROP_COMPATIBILITY to the pool properties enum
* Add ZPOOL_STATUS_COMPATIBILITY_ERR to the pool status enum

An initial set of base compatibility sets are included in
cmd/zpool/compatibility.d, and the Makefile for cmd/zpool is
modified to install these in $pkgdatadir/compatibility.d and to
create symbolic links to a reasonable set of aliases.

Reviewed-by: ericloewe
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Colm Buckley <colm@tuatha.org>
Closes #11468
This commit is contained in:
Colm
2021-02-18 05:30:45 +00:00
committed by GitHub
parent 35ec51796f
commit 658fb8020f
48 changed files with 5621 additions and 2954 deletions
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cmd/zpool/Makefile.am
+46 -1
View File
@@ -39,7 +39,7 @@ include $(top_srcdir)/config/CppCheck.am
zpoolconfdir = $(sysconfdir)/zfs/zpool.d
zpoolexecdir = $(zfsexecdir)/zpool.d
EXTRA_DIST = zpool.d/README
EXTRA_DIST = zpool.d/README compatibility.d
dist_zpoolexec_SCRIPTS = \
zpool.d/dm-deps \
@@ -129,6 +129,48 @@ zpoolconfdefaults = \
test_progress \
test_ended
zpoolcompatdir = $(pkgdatadir)/compatibility.d
dist_zpoolcompat_DATA = \
compatibility.d/compat-2018 \
compatibility.d/compat-2019 \
compatibility.d/compat-2020 \
compatibility.d/compat-2021 \
compatibility.d/freebsd-11.0 \
compatibility.d/freebsd-11.2 \
compatibility.d/freebsd-11.3 \
compatibility.d/freenas-9.10.2 \
compatibility.d/grub2 \
compatibility.d/openzfsonosx-1.7.0 \
compatibility.d/openzfsonosx-1.8.1 \
compatibility.d/openzfsonosx-1.9.3 \
compatibility.d/openzfs-2.0-freebsd \
compatibility.d/openzfs-2.0-linux \
compatibility.d/zol-0.6.5 \
compatibility.d/zol-0.7 \
compatibility.d/zol-0.8
# canonical <- alias symbolic link pairs
# eg: "2018" is a link to "compat-2018"
zpoolcompatlinks = \
"compat-2018 2018" \
"compat-2019 2019" \
"compat-2020 2020" \
"compat-2021 2021" \
"freebsd-11.0 freebsd-11.1" \
"freebsd-11.0 freenas-11.0" \
"freebsd-11.2 freenas-11.2" \
"freebsd-11.3 freebsd-11.4" \
"freebsd-11.3 freebsd-12.0" \
"freebsd-11.3 freebsd-12.1" \
"freebsd-11.3 freebsd-12.2" \
"freebsd-11.3 freenas-11.3" \
"freenas-11.0 freenas-11.1" \
"openzfsonosx-1.9.3 openzfsonosx-1.9.4" \
"openzfs-2.0-freebsd truenas-12.0" \
"zol-0.7 ubuntu-18.04" \
"zol-0.8 ubuntu-20.04"
install-data-hook:
$(MKDIR_P) "$(DESTDIR)$(zpoolconfdir)"
for f in $(zpoolconfdefaults); do \
@@ -136,3 +178,6 @@ install-data-hook:
-L "$(DESTDIR)$(zpoolconfdir)/$${f}" || \
ln -s "$(zpoolexecdir)/$${f}" "$(DESTDIR)$(zpoolconfdir)"; \
done
for l in $(zpoolcompatlinks); do \
(cd "$(DESTDIR)$(zpoolcompatdir)"; ln -s $${l} ); \
done