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Add pool state /proc entry, "SUSPENDED" pools

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1. Add a proc entry to display the pool's state:

$ cat /proc/spl/kstat/zfs/tank/state
ONLINE

This is done without using the spa config locks, so it will
never hang.

2. Fix 'zpool status' and 'zpool list -o health' output to print
"SUSPENDED" instead of "ONLINE" for suspended pools.

Reviewed-by: Olaf Faaland <faaland1@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed by: Richard Elling <Richard.Elling@RichardElling.com>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #7331 
Closes #7563
This commit is contained in:
Tony Hutter
2018-06-06 09:33:54 -07:00
committed by Brian Behlendorf
parent 2d9142c9d4
commit f0ed6c7448
18 changed files with 383 additions and 26 deletions
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module/spl/spl-kstat.c
+2 -2
View File
@@ -389,7 +389,8 @@ kstat_seq_start(struct seq_file *f, loff_t *pos)
ksp->ks_snaptime = gethrtime();
if (!n && kstat_seq_show_headers(f))
if (!(ksp->ks_flags & KSTAT_FLAG_NO_HEADERS) && !n &&
kstat_seq_show_headers(f))
return (NULL);
if (n >= ksp->ks_ndata)
@@ -539,7 +540,6 @@ __kstat_create(const char *ks_module, int ks_instance, const char *ks_name,
ASSERT(ks_module);
ASSERT(ks_instance == 0);
ASSERT(ks_name);
ASSERT(!(ks_flags & KSTAT_FLAG_UNSUPPORTED));
if ((ks_type == KSTAT_TYPE_INTR) || (ks_type == KSTAT_TYPE_IO))
ASSERT(ks_ndata == 1);