btrfs: introduce helpers for subpage error status

[linux-2.6-microblaze.git] / fs / btrfs / subpage.h

diff --git a/fs/btrfs/subpage.h b/fs/btrfs/subpage.h
index 98d511c..f3c5def 100644 (file)
--- a/fs/btrfs/subpage.h
+++ b/fs/btrfs/subpage.h
@@ -19,6 +19,7 @@ struct btrfs_subpage {
        /* Common members for both data and metadata pages */
        spinlock_t lock;
        u16 uptodate_bitmap;
+       u16 error_bitmap;
        union {
                /*
                 * Structures only used by metadata
@@ -77,5 +78,6 @@ bool btrfs_page_test_##name(const struct btrfs_fs_info *fs_info,      \
                struct page *page, u64 start, u32 len);
 
 DECLARE_BTRFS_SUBPAGE_OPS(uptodate);
+DECLARE_BTRFS_SUBPAGE_OPS(error);
 
 #endif