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Illumos 5959 - clean up per-dataset feature count code

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5959 clean up per-dataset feature count code
Reviewed by: Toomas Soome <tsoome@me.com>
Reviewed by: George Wilson <george@delphix.com>
Reviewed by: Alex Reece <alex@delphix.com>
Approved by: Richard Lowe <richlowe@richlowe.net>

References:
  https://www.illumos.org/issues/5959
  https://github.com/illumos/illumos-gate/commit/ca0cc39

Porting notes:

illumos code doesn't check for feature_get_refcount() returning
ENOTSUP (which means feature is disabled) in zdb. zfsonlinux added
a check in https://github.com/zfsonlinux/zfs/commit/784652c
due to #3468. The check was reintroduced here.

Ported-by: Witaut Bajaryn <vitaut.bayaryn@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #3965
This commit is contained in:
Matthew Ahrens
2015-07-24 09:53:55 -07:00
committed by Brian Behlendorf
parent 072484504f
commit 241b541574
11 changed files with 237 additions and 178 deletions
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cmd/zpool/zpool_main.c
+3 -2
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@@ -22,7 +22,7 @@
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2011, 2014 by Delphix. All rights reserved.
* Copyright (c) 2011, 2015 by Delphix. All rights reserved.
* Copyright (c) 2012 by Frederik Wessels. All rights reserved.
* Copyright (c) 2012 by Cyril Plisko. All rights reserved.
* Copyright (c) 2013 by Prasad Joshi (sTec). All rights reserved.
@@ -5105,7 +5105,8 @@ zpool_do_upgrade(int argc, char **argv)
"---------------\n");
for (i = 0; i < SPA_FEATURES; i++) {
zfeature_info_t *fi = &spa_feature_table[i];
const char *ro = fi->fi_can_readonly ?
const char *ro =
(fi->fi_flags & ZFEATURE_FLAG_READONLY_COMPAT) ?
" (read-only compatible)" : "";
(void) printf("%-37s%s\n", fi->fi_uname, ro);