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Diffstat (limited to 'fs/btrfs/subpage.h')
-rw-r--r--fs/btrfs/subpage.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/btrfs/subpage.h b/fs/btrfs/subpage.h
index b86a4881475d..bfd626e955be 100644
--- a/fs/btrfs/subpage.h
+++ b/fs/btrfs/subpage.h
@@ -20,6 +20,8 @@ struct btrfs_subpage {
spinlock_t lock;
u16 uptodate_bitmap;
u16 error_bitmap;
+ u16 dirty_bitmap;
+ u16 writeback_bitmap;
union {
/*
* Structures only used by metadata
@@ -87,5 +89,10 @@ bool btrfs_page_test_##name(const struct btrfs_fs_info *fs_info, \
DECLARE_BTRFS_SUBPAGE_OPS(uptodate);
DECLARE_BTRFS_SUBPAGE_OPS(error);
+DECLARE_BTRFS_SUBPAGE_OPS(dirty);
+DECLARE_BTRFS_SUBPAGE_OPS(writeback);
+
+bool btrfs_subpage_clear_and_test_dirty(const struct btrfs_fs_info *fs_info,
+ struct page *page, u64 start, u32 len);
#endif