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[dm-devel] [PATCH for-3.14 12/20] dm thin: log info when growing the data or metadata device



Signed-off-by: Mike Snitzer <snitzer redhat com>
Acked-by: Joe Thornber <ejt redhat com>
---
 drivers/md/dm-thin.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index ccd917f..3a80c00 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -2220,6 +2220,10 @@ static int maybe_resize_data_dev(struct dm_target *ti, bool *need_commit)
 		return -EINVAL;
 
 	} else if (data_size > sb_data_size) {
+		if (sb_data_size)
+			DMINFO("%s: growing the data device from %llu to %llu blocks",
+			       dm_device_name(pool->pool_md),
+			       sb_data_size, (unsigned long long)data_size);
 		r = dm_pool_resize_data_dev(pool->pmd, data_size);
 		if (r) {
 			metadata_operation_failed(pool, "dm_pool_resize_data_dev", r);
@@ -2257,6 +2261,9 @@ static int maybe_resize_metadata_dev(struct dm_target *ti, bool *need_commit)
 		return -EINVAL;
 
 	} else if (metadata_dev_size > sb_metadata_dev_size) {
+		DMINFO("%s: growing the metadata device from %llu to %llu blocks",
+		       dm_device_name(pool->pool_md),
+		       sb_metadata_dev_size, metadata_dev_size);
 		r = dm_pool_resize_metadata_dev(pool->pmd, metadata_dev_size);
 		if (r) {
 			metadata_operation_failed(pool, "dm_pool_resize_metadata_dev", r);
-- 
1.8.1.4


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