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-rw-r--r--fs/btrfs/subpage.c24
1 files changed, 0 insertions, 24 deletions
diff --git a/fs/btrfs/subpage.c b/fs/btrfs/subpage.c
index f02346aff827..a8a6e105e5f6 100644
--- a/fs/btrfs/subpage.c
+++ b/fs/btrfs/subpage.c
@@ -64,30 +64,6 @@
* This means a slightly higher tree locking latency.
*/
-#if PAGE_SIZE > SZ_4K
-bool btrfs_is_subpage(const struct btrfs_fs_info *fs_info, struct address_space *mapping)
-{
- if (fs_info->sectorsize >= PAGE_SIZE)
- return false;
-
- /*
- * Only data pages (either through DIO or compression) can have no
- * mapping. And if mapping->host is data inode, it's subpage.
- * As we have ruled our sectorsize >= PAGE_SIZE case already.
- */
- if (!mapping || !mapping->host || is_data_inode(BTRFS_I(mapping->host)))
- return true;
-
- /*
- * Now the only remaining case is metadata, which we only go subpage
- * routine if nodesize < PAGE_SIZE.
- */
- if (fs_info->nodesize < PAGE_SIZE)
- return true;
- return false;
-}
-#endif
-
int btrfs_attach_subpage(const struct btrfs_fs_info *fs_info,
struct folio *folio, enum btrfs_subpage_type type)
{