dm thin: set pool read-only if breaking_sharing fails block allocation
break_sharing() now handles an arbitrary alloc_data_block() error
the same way as provision_block(): marks pool read-only and errors the
cell.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index c151cbf..3aff1c2 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -1086,6 +1086,7 @@
{
int r;
dm_block_t data_block;
+ struct pool *pool = tc->pool;
r = alloc_data_block(tc, &data_block);
switch (r) {
@@ -1095,13 +1096,14 @@
break;
case -ENOSPC:
- no_space(tc->pool, cell);
+ no_space(pool, cell);
break;
default:
DMERR_LIMIT("%s: alloc_data_block() failed: error = %d",
__func__, r);
- cell_error(tc->pool, cell);
+ set_pool_mode(pool, PM_READ_ONLY);
+ cell_error(pool, cell);
break;
}
}