From: Czarnowska, Anna
Sent: Monday, July 05, 2010 11:36 AM
To: Neil Brown
Cc: linux-raid@xxxxxxxxxxxxxxx; Czarnowska, Anna; Hawrylewicz Czarnowski, Przemyslaw; Labun, Marcin; Neubauer, Wojciech; Williams, Dan J; Ciechanowski, Ed; dledford@xxxxxxxxxx
Subject: [PATCH 22/33] Monitor: added function to get domain and subset of a disk
For spare sharing.
Performs a check for failed status if required.
Signed-off-by: Anna Czarnowska <anna.czarnowska@xxxxxxxxx>
---
Monitor.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 49 insertions(+), 0 deletions(-)
diff --git a/Monitor.c b/Monitor.c
index e16af2d..ed57af0 100644
--- a/Monitor.c
+++ b/Monitor.c
@@ -601,6 +601,55 @@ int check_disk_is_free(struct state *donor, int disk_idx, int ext)
return disk_idx;
}
+int get_disk_domain_and_subset(int devid, char *metadata_version, struct domain_ent **domain,
+ struct subset **subset, int fcheck) {
+ struct supertype *sty;
+ int fd;
+ char *devname = map_dev(major(devid), minor(devid), 1);
+
+ if (!devname)
+ return 0;
+ fd = open(devname, O_RDONLY);
+ if (fd < 0)
+ return 0;
+
+ sty = guess_super(fd);
+ if (!sty) {
+ close(fd);
+ return 0;
+ }
+
+ if (sty->ss->load_super(sty, fd, devname))
+ goto fail;
+
+ /* check metadata for failed status*/
+ if (fcheck && disk_faulty(sty, major(devid), minor(devid)))
+ goto fail;
+ close(fd);
+
+ *domain = conf_get_domain(strrchr(devname, '/'), metadata_version);
+ if (*domain == NULL) {
+ *subset = NULL;
+ goto fail;
+ }
+
+ *subset = conf_get_subset(strrchr(devname, '/'), sty, *domain);
+ if (*subset == NULL)
+ goto fail;
+
+ sty->ss->free_super(sty);
+ free(sty);
+ return 1;
+
+fail:
+ if (fd >= 0)
+ close(fd);
+ sty->ss->free_super(sty);
+ free(sty);
+ return 0;
+}
+
static void alert(char *event, char *dev, char *disc, char *mailaddr, char *mailfrom, char *cmd,
int dosyslog)
{
--
1.6.4.2
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