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From aed5f5c34c2b248876b874898d0b3bf65b6cca53 Mon Sep 17 00:00:00 2001
From: Jes Sorensen <jsorensen@fb.com>
Date: Tue, 9 May 2017 16:49:33 -0400
Subject: [RHEL7.5 PATCH 128/169] Monitor/check_array: Read sysfs entry
earlier
This will allow us to pull additional info from sysfs, such as level
and device info.
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
---
Monitor.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/Monitor.c b/Monitor.c
index bb3a2c4..75aea91 100644
--- a/Monitor.c
+++ b/Monitor.c
@@ -451,7 +451,7 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
* '1' if the array is degraded, or '0' if it is optimal (or dead).
*/
struct { int state, major, minor; } info[MAX_DISKS];
- struct mdinfo *sra;
+ struct mdinfo *sra = NULL;
mdu_array_info_t array;
struct mdstat_ent *mse = NULL, *mse2;
char *dev = st->devname;
@@ -478,6 +478,13 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
if (md_get_array_info(fd, &array) < 0)
goto disappeared;
+ if (st->devnm[0] == 0)
+ strcpy(st->devnm, fd2devnm(fd));
+
+ sra = sysfs_read(-1, st->devnm, GET_MISMATCH);
+ if (!sra)
+ goto disappeared;
+
/* It's much easier to list what array levels can't
* have a device disappear than all of them that can
*/
@@ -487,8 +494,6 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
st->err++;
goto out;
}
- if (st->devnm[0] == 0)
- strcpy(st->devnm, fd2devnm(fd));
for (mse2 = mdstat ; mse2 ; mse2=mse2->next)
if (strcmp(mse2->devnm, st->devnm) == 0) {
@@ -557,7 +562,6 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
* If there is a number in /mismatch_cnt,
* we should report that.
*/
- sra = sysfs_read(-1, st->devnm, GET_MISMATCH);
if (sra && sra->mismatch_cnt > 0) {
char cnt[80];
snprintf(cnt, sizeof(cnt),
@@ -566,8 +570,6 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
alert("RebuildFinished", dev, cnt, ainfo);
} else
alert("RebuildFinished", dev, NULL, ainfo);
- if (sra)
- sysfs_free(sra);
}
st->percent = mse->percent;
@@ -644,6 +646,8 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
retval = 1;
out:
+ if (sra)
+ sysfs_free(sra);
if (fd > 0)
close(fd);
return retval;
--
2.7.4