btrfs: handle errors returned from get_tree_block_key

[deliverable/linux.git] / fs / btrfs / extent_io.h

diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 258c92156857f1d1e9e525a89d7a706d6c126c66..9ebb4c7b86d152ca225a51f989927ed761d115c8 100644 (file)
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -116,7 +116,9 @@ struct extent_state {
        /* for use by the FS */
        u64 private;
 
+#ifdef CONFIG_BTRFS_DEBUG
        struct list_head leak_list;
+#endif
 };
 
 #define INLINE_EXTENT_BUFFER_PAGES 16
@@ -132,7 +134,6 @@ struct extent_buffer {
        atomic_t refs;
        atomic_t io_pages;
        int read_mirror;
-       struct list_head leak_list;
        struct rcu_head rcu_head;
        pid_t lock_owner;
 
@@ -159,6 +160,9 @@ struct extent_buffer {
        wait_queue_head_t read_lock_wq;
        wait_queue_head_t lock_wq;
        struct page *pages[INLINE_EXTENT_BUFFER_PAGES];
+#ifdef CONFIG_BTRFS_DEBUG
+       struct list_head leak_list;
+#endif
 };
 
 static inline void extent_set_compress_type(unsigned long *bio_flags,
@@ -186,9 +190,6 @@ int try_release_extent_mapping(struct extent_map_tree *map,
                               struct extent_io_tree *tree, struct page *page,
                               gfp_t mask);
 int try_release_extent_buffer(struct page *page, gfp_t mask);
-int try_release_extent_state(struct extent_map_tree *map,
-                            struct extent_io_tree *tree, struct page *page,
-                            gfp_t mask);
 int lock_extent(struct extent_io_tree *tree, u64 start, u64 end);
 int lock_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
                     int bits, struct extent_state **cached);
@@ -238,8 +239,6 @@ int set_extent_defrag(struct extent_io_tree *tree, u64 start, u64 end,
 int find_first_extent_bit(struct extent_io_tree *tree, u64 start,
                          u64 *start_ret, u64 *end_ret, int bits,
                          struct extent_state **cached_state);
-struct extent_state *find_first_extent_bit_state(struct extent_io_tree *tree,
-                                                u64 start, int bits);
 int extent_invalidatepage(struct extent_io_tree *tree,
                          struct page *page, unsigned long offset);
 int extent_write_full_page(struct extent_io_tree *tree, struct page *page,
@@ -261,6 +260,10 @@ int extent_readpages(struct extent_io_tree *tree,
 int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
                __u64 start, __u64 len, get_extent_t *get_extent);
 int set_state_private(struct extent_io_tree *tree, u64 start, u64 private);
+void extent_cache_csums_dio(struct extent_io_tree *tree, u64 start, u32 csums[],
+                           int count);
+void extent_cache_csums(struct extent_io_tree *tree, struct bio *bio,
+                       int bvec_index, u32 csums[], int count);
 int get_state_private(struct extent_io_tree *tree, u64 start, u64 *private);
 void set_page_extent_mapped(struct page *page);
 
@@ -278,6 +281,7 @@ void free_extent_buffer_stale(struct extent_buffer *eb);
 int read_extent_buffer_pages(struct extent_io_tree *tree,
                             struct extent_buffer *eb, u64 start, int wait,
                             get_extent_t *get_extent, int mirror_num);
+void wait_on_extent_buffer_writeback(struct extent_buffer *eb);
 
 static inline unsigned long num_extent_pages(u64 start, u64 len)
 {
@@ -313,7 +317,6 @@ void memmove_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
                           unsigned long src_offset, unsigned long len);
 void memset_extent_buffer(struct extent_buffer *eb, char c,
                          unsigned long start, unsigned long len);
-void wait_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, int bits);
 void clear_extent_buffer_dirty(struct extent_buffer *eb);
 int set_extent_buffer_dirty(struct extent_buffer *eb);
 int set_extent_buffer_uptodate(struct extent_buffer *eb);
@@ -323,8 +326,6 @@ int map_private_extent_buffer(struct extent_buffer *eb, unsigned long offset,
                      unsigned long min_len, char **map,
                      unsigned long *map_start,
                      unsigned long *map_len);
-int extent_range_uptodate(struct extent_io_tree *tree,
-                         u64 start, u64 end);
 int extent_range_clear_dirty_for_io(struct inode *inode, u64 start, u64 end);
 int extent_range_redirty_for_io(struct inode *inode, u64 start, u64 end);
 int extent_clear_unlock_delalloc(struct inode *inode,