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Prepare ks_data before calling kstat_install()

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It violated sequence described in kstat.h, and at least on FreeBSD
kstat_install() uses provided names to create the sysctls.  If the
names are not available at the time, it ends up bad.

Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored-By: iXsystems, Inc.
Closes #9933
This commit is contained in:
Alexander Motin
2020-02-04 11:49:12 -05:00
committed by GitHub
parent 52c487a0e4
commit 741db5a346
2 changed files with 5 additions and 7 deletions
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module/os/linux/zfs/abd.c
+2 -3
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@@ -573,15 +573,14 @@ abd_init(void)
abd_ksp = kstat_create("zfs", 0, "abdstats", "misc", KSTAT_TYPE_NAMED,
sizeof (abd_stats) / sizeof (kstat_named_t), KSTAT_FLAG_VIRTUAL);
if (abd_ksp != NULL) {
abd_ksp->ks_data = &abd_stats;
kstat_install(abd_ksp);
for (i = 0; i < MAX_ORDER; i++) {
snprintf(abd_stats.abdstat_scatter_orders[i].name,
KSTAT_STRLEN, "scatter_order_%d", i);
abd_stats.abdstat_scatter_orders[i].data_type =
KSTAT_DATA_UINT64;
}
abd_ksp->ks_data = &abd_stats;
kstat_install(abd_ksp);
}
}