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etc/systemd/zfs-mount-generator: serialise, handle keylocation=http[s]:// 
* etc/systemd/zfs-mount-generator: serialise

The wins for a relatively normal workload are rather slim:
	real	0.02119s/0.00985s=2.15029x
	user	0.02130s/0.00346s=6.15560x
	sys	0.03858s/0.00643s=6.00062x

	wall-total	0.014518s/0.005925s=2.45009x
	wall-init	0.014518s/0.002457s=5.90684x
	wall-real	0.014518s/0.003467s=4.18668x

But this is a big win on machines with a lot of datasets and expensive
forks.

For example, the gain on a VM on my work laptop with 900+ legacy-mount
Docker datasets, the original gains from the C rewrite were
only five-fold:
	real    0.516s/0.102s=5.05882x
	user    0.237s/0.143s=1.65734x
	sys     0.287s/0.100s=2.87x

And this serial variant gains this back there as well:
	real    0.102s/0.008s=12.75x
	user    0.143s/0.007s=20.42857
	sys     0.100s/0.001s=100x

	wall-total	0.09717s/0.00319s=30.40255x
	wall-init	0.00203s/0.00200s=1.015941x
	wall-real	0.09513s/0.00118s=80.02043x

For a total of
	real    0.516s/0.008s=64.5x
	user    0.237s/0.007s=33.85714x
	sys     0.287s/0.001s=287x

Suggested-by: Richard Laager <rlaager@wiktel.com>

* etc/systemd/zfs-mount-generator: pull in network for keylocation=https

Also simplify RequiresMountsFor= handling
Ref: #11956

Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #12138
2021-11-30 09:29:50 -07:00
..
.gitignore Ignore *.o.ur-safe build artifacts 2018-05-13 18:59:02 -07:00
fsck.zfs.8 Consistentify miscellaneous style on remaining manpages 2021-06-09 14:35:53 -07:00
mount.zfs.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
vdev_id.8 vdev_id.8: modernise, note scsi topology 2021-05-29 20:22:01 -07:00
zdb.8 Lint most manpages 2021-06-04 12:48:31 -07:00
zed.8.in Consistentify miscellaneous style on remaining manpages 2021-06-09 14:35:53 -07:00
zfs_ids_to_path.8 Lint most manpages 2021-06-04 12:48:31 -07:00
zfs-allow.8 Add missing properties to zfs allow manpage 2021-07-26 12:44:01 -07:00
zfs-bookmark.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zfs-change-key.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-clone.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zfs-create.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zfs-destroy.8 Lint most manpages 2021-06-04 12:48:31 -07:00
zfs-diff.8 Lint most manpages 2021-06-04 12:48:31 -07:00
zfs-get.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-groupspace.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-hold.8 Lint most manpages 2021-06-04 12:48:31 -07:00
zfs-inherit.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-jail.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zfs-list.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zfs-load-key.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zfs-mount-generator.8.in etc/systemd/zfs-mount-generator: serialise, handle keylocation=http[s]:// 2021-11-30 09:29:50 -07:00
zfs-mount.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zfs-program.8 Lint most manpages 2021-06-04 12:48:31 -07:00
zfs-project.8 Lint most manpages 2021-06-04 12:48:31 -07:00
zfs-projectspace.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-promote.8 Lint most manpages 2021-06-04 12:48:31 -07:00
zfs-receive.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zfs-recv.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-redact.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-release.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-rename.8 Lint most manpages 2021-06-04 12:48:31 -07:00
zfs-rollback.8 Lint most manpages 2021-06-04 12:48:31 -07:00
zfs-send.8 Document additional -c caveat 2021-10-05 11:48:17 -07:00
zfs-set.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zfs-share.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zfs-snapshot.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zfs-unallow.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-unjail.8 Add FreeBSD jail support hooks 2019-12-11 11:58:37 -08:00
zfs-unload-key.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-unmount.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-upgrade.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zfs-userspace.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zfs-wait.8 Modernise/fix/rewrite unlinted manpages 2021-06-07 13:41:54 -06:00
zfs.8 libshare: nfs: pass through ipv6 addresses in bracket notation 2021-10-20 10:40:00 -07:00
zgenhostid.8 zgenhostid.8: revisit 2021-06-09 14:36:03 -07:00
zinject.8 zinject.8: modernise 2021-05-29 20:21:58 -07:00
zpool_influxdb.8 Consistentify miscellaneous style on remaining manpages 2021-06-09 14:35:53 -07:00
zpool-add.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zpool-attach.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zpool-checkpoint.8 Lint most manpages 2021-06-04 12:48:31 -07:00
zpool-clear.8 Lint most manpages 2021-06-04 12:48:31 -07:00
zpool-create.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zpool-destroy.8 Modernise/fix/rewrite unlinted manpages 2021-06-07 13:41:54 -06:00
zpool-detach.8 Lint most manpages 2021-06-04 12:48:31 -07:00
zpool-events.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zpool-export.8 Modernise/fix/rewrite unlinted manpages 2021-06-07 13:41:54 -06:00
zpool-get.8 Vdev Properties Feature 2021-11-30 07:46:25 -07:00
zpool-history.8 Modernise/fix/rewrite unlinted manpages 2021-06-07 13:41:54 -06:00
zpool-import.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zpool-initialize.8 Lint most manpages 2021-06-04 12:48:31 -07:00
zpool-iostat.8 Extend zpool-iostat to account for ZIO_PRIORITY_REBUILD (#12319) 2021-08-26 11:26:49 -07:00
zpool-labelclear.8 Modernise/fix/rewrite unlinted manpages 2021-06-07 13:41:54 -06:00
zpool-list.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zpool-offline.8 Lint most manpages 2021-06-04 12:48:31 -07:00
zpool-online.8 Reorganize zpool(8) man page into sections 2019-11-13 09:21:07 -08:00
zpool-reguid.8 Modernise/fix/rewrite unlinted manpages 2021-06-07 13:41:54 -06:00
zpool-remove.8 zpool-remove.8: describe top-level vdev sector size limitation 2021-08-23 14:59:18 -07:00
zpool-reopen.8 Lint most manpages 2021-06-04 12:48:31 -07:00
zpool-replace.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zpool-resilver.8 Lint most manpages 2021-06-04 12:48:31 -07:00
zpool-scrub.8 Man zpool-scrub.8: describe sequential scrub 2021-08-05 15:30:28 -06:00
zpool-set.8 Reorganize zpool(8) man page into sections 2019-11-13 09:21:07 -08:00
zpool-split.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zpool-status.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zpool-sync.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zpool-trim.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zpool-upgrade.8 Move properties, parameters, events, and concepts around manual sections 2021-06-09 14:35:30 -07:00
zpool-wait.8 Lint most manpages 2021-06-04 12:48:31 -07:00
zpool.8 Fix typo in zpool.8 2021-11-29 10:52:42 -08:00
zstream.8 Lint most manpages 2021-06-04 12:48:31 -07:00
zstreamdump.8 zstreamdump: replace with link to zstream 2021-05-21 10:16:14 -07:00