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authorChristoph Hellwig <[email protected]>2021-01-09 11:42:49 +0100
committerJens Axboe <[email protected]>2021-01-24 18:15:57 -0700
commit1e0dcca9e1aa3caa1a0dc4300db1a091078fe40b (patch)
tree41a7cef2f3c4f1bdca2b9d78092b9194e6d1b4eb
parent6ee1d745b7c9fd573fba142a2efdad76a9f1cb04 (diff)
dm: use bdev_read_only to check if a device is read-only
dm-thin and dm-cache also work on partitions, so use the proper interface to check if the device is read-only. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Ming Lei <[email protected]> Reviewed-by: Martin K. Petersen <[email protected]> Reviewed-by: Hannes Reinecke <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
-rw-r--r--drivers/md/dm-cache-metadata.c2
-rw-r--r--drivers/md/dm-thin-metadata.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/md/dm-cache-metadata.c b/drivers/md/dm-cache-metadata.c
index af6d4f898e4c..89a73204dbf4 100644
--- a/drivers/md/dm-cache-metadata.c
+++ b/drivers/md/dm-cache-metadata.c
@@ -449,7 +449,7 @@ static int __check_incompat_features(struct cache_disk_superblock *disk_super,
/*
* Check for read-only metadata to skip the following RDWR checks.
*/
- if (get_disk_ro(cmd->bdev->bd_disk))
+ if (bdev_read_only(cmd->bdev))
return 0;
features = le32_to_cpu(disk_super->compat_ro_flags) & ~DM_CACHE_FEATURE_COMPAT_RO_SUPP;
diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
index 6ebb2127f3e2..e75b20480e46 100644
--- a/drivers/md/dm-thin-metadata.c
+++ b/drivers/md/dm-thin-metadata.c
@@ -636,7 +636,7 @@ static int __check_incompat_features(struct thin_disk_superblock *disk_super,
/*
* Check for read-only metadata to skip the following RDWR checks.
*/
- if (get_disk_ro(pmd->bdev->bd_disk))
+ if (bdev_read_only(pmd->bdev))
return 0;
features = le32_to_cpu(disk_super->compat_ro_flags) & ~THIN_FEATURE_COMPAT_RO_SUPP;