From: Jonathan E Brassow <[email protected]>
This patch reports the status of the log device so that userspace
can detect the error and take appropriate action.
Signed-off-by: Jonathan E Brassow <[email protected]>
Signed-off-by: Alasdair G Kergon <[email protected]>
---
drivers/md/dm-log.c | 7 ++++---
drivers/md/dm-raid1.c | 11 +++++++----
2 files changed, 11 insertions(+), 7 deletions(-)
Index: linux-2.6.21/drivers/md/dm-log.c
===================================================================
--- linux-2.6.21.orig/drivers/md/dm-log.c 2007-05-01 17:40:51.000000000 +0100
+++ linux-2.6.21/drivers/md/dm-log.c 2007-05-01 17:40:51.000000000 +0100
@@ -615,6 +615,7 @@ static int core_status(struct dirty_log
switch(status) {
case STATUSTYPE_INFO:
+ DMEMIT("1 %s", log->type->name);
break;
case STATUSTYPE_TABLE:
@@ -630,17 +631,17 @@ static int disk_status(struct dirty_log
char *result, unsigned int maxlen)
{
int sz = 0;
- char buffer[16];
struct log_c *lc = log->context;
switch(status) {
case STATUSTYPE_INFO:
+ DMEMIT("3 %s %s %c", log->type->name, lc->log_dev->name,
+ lc->log_dev_failed ? 'D' : 'A');
break;
case STATUSTYPE_TABLE:
- format_dev_t(buffer, lc->log_dev->bdev->bd_dev);
DMEMIT("%s %u %s %u ", log->type->name,
- lc->sync == DEFAULTSYNC ? 2 : 3, buffer,
+ lc->sync == DEFAULTSYNC ? 2 : 3, lc->log_dev->name,
lc->region_size);
DMEMIT_SYNC;
}
Index: linux-2.6.21/drivers/md/dm-raid1.c
===================================================================
--- linux-2.6.21.orig/drivers/md/dm-raid1.c 2007-05-01 17:40:46.000000000 +0100
+++ linux-2.6.21/drivers/md/dm-raid1.c 2007-05-01 17:40:51.000000000 +0100
@@ -1205,11 +1205,9 @@ static void mirror_resume(struct dm_targ
static int mirror_status(struct dm_target *ti, status_type_t type,
char *result, unsigned int maxlen)
{
- unsigned int m, sz;
+ unsigned int m, sz = 0;
struct mirror_set *ms = (struct mirror_set *) ti->private;
- sz = ms->rh.log->type->status(ms->rh.log, type, result, maxlen);
-
switch (type) {
case STATUSTYPE_INFO:
DMEMIT("%d ", ms->nr_mirrors);
@@ -1220,9 +1218,14 @@ static int mirror_status(struct dm_targe
(unsigned long long)ms->rh.log->type->
get_sync_count(ms->rh.log),
(unsigned long long)ms->nr_regions);
+
+ sz = ms->rh.log->type->status(ms->rh.log, type, result, maxlen);
+
break;
case STATUSTYPE_TABLE:
+ sz = ms->rh.log->type->status(ms->rh.log, type, result, maxlen);
+
DMEMIT("%d", ms->nr_mirrors);
for (m = 0; m < ms->nr_mirrors; m++)
DMEMIT(" %s %llu", ms->mirror[m].dev->name,
@@ -1234,7 +1237,7 @@ static int mirror_status(struct dm_targe
static struct target_type mirror_target = {
.name = "mirror",
- .version = {1, 0, 2},
+ .version = {1, 0, 3},
.module = THIS_MODULE,
.ctr = mirror_ctr,
.dtr = mirror_dtr,
-
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