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dm log: report fault status

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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 <jbrassow@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jonathan E Brassow
2007-05-09 02:32:58 -07:00
committed by Linus Torvalds
parent 01d03a660e
commit 315dcc226f
2 changed files with 11 additions and 7 deletions
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11
drivers/md/dm-raid1.c
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@@ -1205,11 +1205,9 @@ static void mirror_resume(struct dm_target *ti)
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_target *ti, status_type_t type,
(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_target *ti, status_type_t type,
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,