[AUTOREBUILD 1/8] Monitor: set err on arrays not in mdstat

From ec8c735833e3c0562e936d2f9415c5ac46388bbc Mon Sep 17 00:00:00 2001
From: Anna Czarnowska
Date: Fri, 23 Jul 2010 21:33:37 +0200
Subject: [AUTOREBUILD 1/8] Monitor: set err on arrays not in mdstat

mse can be NULL when the array was not in mdstat when we read it
but existed in statelist and was recreated after reading mdstat.
In this case we set err as we can't get full update on this array
this time.
If the same array is given twice in command line it appears twice
in statelist. The first one will mark mse->devnum=INT_MAX
so the second one can't find mse. We set err on the second one as
it's not needed. Also if it becomes degraded we would look for spares
twice for the same array.

Signed-off-by: Anna Czarnowska
---
Monitor.c | 24 ++++++++++++------------
1 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/Monitor.c b/Monitor.c
index 0f0adb5..51df8fb 100644
--- a/Monitor.c
+++ b/Monitor.c
@@ -264,13 +264,20 @@ int Monitor(mddev_dev_t devlist,
st->devnum = -1- (minor(stb.st_rdev)>>6);
}
}
-
for (mse2 = mdstat ; mse2 ; mse2=mse2->next)
if (mse2->devnum == st->devnum) {
mse2->devnum = INT_MAX; /* flag it as "used" */
mse = mse2;
}

+ if (!mse) {
+ /* duplicated array in statelist
+ * or re-created after reading mdstat*/
+ st->err = 1;
+ close(fd);
+ continue;
+ }
+ /* this array is in /proc/mdstat */
if (array.utime == 0)
/* external arrays don't update utime */
array.utime = time(0);
@@ -287,7 +294,6 @@ int Monitor(mddev_dev_t devlist,
continue;
}
if (st->utime == 0 && /* new array */
- mse && /* is in /proc/mdstat */
mse->pattern && strchr(mse->pattern, '_') /* degraded */
)
alert("DegradedArray", dev, NULL, mailaddr, mailfrom, alert_cmd, dosyslog);
@@ -296,12 +302,10 @@ int Monitor(mddev_dev_t devlist,
st->expected_spares > 0 &&
array.spare_disks < st->expected_spares)
alert("SparesMissing", dev, NULL, mailaddr, mailfrom, alert_cmd, dosyslog);
- if (mse &&
- st->percent == -1 &&
+ if (st->percent == -1 &&
mse->percent >= 0)
alert("RebuildStarted", dev, NULL, mailaddr, mailfrom, alert_cmd, dosyslog);
- if (mse &&
- st->percent >= 0 &&
+ if (st->percent >= 0 &&
mse->percent >= 0 &&
(mse->percent / increments) > (st->percent / increments)) {
char percentalert[15]; // "RebuildNN" (10 chars) or "RebuildStarted" (15 chars)
@@ -315,8 +319,7 @@ int Monitor(mddev_dev_t devlist,
dev, NULL, mailaddr, mailfrom, alert_cmd, dosyslog);
}

- if (mse &&
- mse->percent == -1 &&
+ if (mse->percent == -1 &&
st->percent >= 0) {
/* Rebuild/sync/whatever just finished.
* If there is a number in /mismatch_cnt,
@@ -333,10 +336,7 @@ int Monitor(mddev_dev_t devlist,
if (sra)
free(sra);
}
-
- if (mse)
- st->percent = mse->percent;
-
+ st->percent = mse->percent;

for (i=0; i i++) {
--
1.6.4.2

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