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Fix "zpool add -n" for dedup, special and log devices

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For dedup, special and log devices "zpool add -n" does not print
correctly their vdev type:

~# zpool add -n pool dedup /tmp/dedup special /tmp/special log /tmp/log
would update 'pool' to the following configuration:
	pool
	  /tmp/normal
	  /tmp/dedup
	  /tmp/special
	  /tmp/log

This could lead storage administrators to modify their ZFS pools to
unexpected and unintended vdev configurations.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #9783 
Closes #9390
This commit is contained in:
loli10K
2020-01-07 00:40:06 +01:00
committed by Brian Behlendorf
parent bc9cef11fd
commit c24fa4b19a
5 changed files with 75 additions and 37 deletions
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module/zcommon/zfs_comutil.c
+6 -2
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@@ -68,7 +68,7 @@ zfs_allocatable_devs(nvlist_t *nv)
* Are there special vdevs?
*/
boolean_t
zfs_special_devs(nvlist_t *nv)
zfs_special_devs(nvlist_t *nv, char *type)
{
char *bias;
uint_t c;
@@ -84,7 +84,11 @@ zfs_special_devs(nvlist_t *nv)
&bias) == 0) {
if (strcmp(bias, VDEV_ALLOC_BIAS_SPECIAL) == 0 ||
strcmp(bias, VDEV_ALLOC_BIAS_DEDUP) == 0) {
return (B_TRUE);
if (type != NULL && strcmp(bias, type) == 0) {
return (B_TRUE);
} else if (type == NULL) {
return (B_TRUE);
}
}
}
}