dm cache: revert "remove remainder of distinct discard block size"
This reverts commit 64ab346a360a4b15c28fb8531918d4a01f4eabd9 because we
actually do want to allow the discard blocksize to be larger than the
cache blocksize. Further dm-cache discard changes will make this
possible.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
diff --git a/drivers/md/dm-cache-block-types.h b/drivers/md/dm-cache-block-types.h
index aac0e2d..bed4ad4 100644
--- a/drivers/md/dm-cache-block-types.h
+++ b/drivers/md/dm-cache-block-types.h
@@ -19,6 +19,7 @@
typedef dm_block_t __bitwise__ dm_oblock_t;
typedef uint32_t __bitwise__ dm_cblock_t;
+typedef dm_block_t __bitwise__ dm_dblock_t;
static inline dm_oblock_t to_oblock(dm_block_t b)
{
@@ -40,4 +41,14 @@
return (__force uint32_t) b;
}
+static inline dm_dblock_t to_dblock(dm_block_t b)
+{
+ return (__force dm_dblock_t) b;
+}
+
+static inline dm_block_t from_dblock(dm_dblock_t b)
+{
+ return (__force dm_block_t) b;
+}
+
#endif /* DM_CACHE_BLOCK_TYPES_H */