X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=fs%2Fbtrfs%2Fextent_io.h;h=c5b483a791372c6b9a849b36c41e8e3dcf6437ac;hb=b64dc5a4842c3420d7a093bf5e8979c57ceb789c;hp=dd367617d780d6ce9ccb60bad99f98a504dd2c1e;hpb=6af118ce51b52ceda357c671550c79628b9c4a65;p=linux-2.6-omap-h63xx.git

diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index dd367617d78..c5b483a7913 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -15,8 +15,13 @@
 #define EXTENT_BUFFER_FILLED (1 << 8)
 #define EXTENT_ORDERED (1 << 9)
 #define EXTENT_ORDERED_METADATA (1 << 10)
+#define EXTENT_BOUNDARY (1 << 11)
+#define EXTENT_NODATASUM (1 << 12)
 #define EXTENT_IOBITS (EXTENT_LOCKED | EXTENT_WRITEBACK)
 
+/* flags for bio submission */
+#define EXTENT_BIO_COMPRESSED 1
+
 /*
  * page->private values.  Every page that is controlled by the extent
  * map has page->private set to one.
@@ -27,14 +32,18 @@
 struct extent_state;
 
 typedef	int (extent_submit_bio_hook_t)(struct inode *inode, int rw,
-				       struct bio *bio, int mirror_num);
+				       struct bio *bio, int mirror_num,
+				       unsigned long bio_flags);
 struct extent_io_ops {
-	int (*fill_delalloc)(struct inode *inode, u64 start, u64 end);
+	int (*fill_delalloc)(struct inode *inode, struct page *locked_page,
+			     u64 start, u64 end, int *page_started,
+			     unsigned long *nr_written);
 	int (*writepage_start_hook)(struct page *page, u64 start, u64 end);
 	int (*writepage_io_hook)(struct page *page, u64 start, u64 end);
 	extent_submit_bio_hook_t *submit_bio_hook;
 	int (*merge_bio_hook)(struct page *page, unsigned long offset,
-			      size_t size, struct bio *bio);
+			      size_t size, struct bio *bio,
+			      unsigned long bio_flags);
 	int (*readpage_io_hook)(struct page *page, u64 start, u64 end);
 	int (*readpage_io_failed_hook)(struct bio *bio, struct page *page,
 				       u64 start, u64 end,
@@ -50,6 +59,7 @@ struct extent_io_ops {
 			    unsigned long old, unsigned long bits);
 	int (*clear_bit_hook)(struct inode *inode, u64 start, u64 end,
 			    unsigned long old, unsigned long bits);
+	int (*write_cache_pages_lock_hook)(struct page *page);
 };
 
 struct extent_io_tree {
@@ -60,7 +70,6 @@ struct extent_io_tree {
 	spinlock_t lock;
 	spinlock_t buffer_lock;
 	struct extent_io_ops *ops;
-	struct extent_state *last;
 };
 
 struct extent_state {
@@ -90,6 +99,7 @@ struct extent_buffer {
 	int flags;
 	struct list_head leak_list;
 	struct rb_node rb_node;
+	struct mutex mutex;
 };
 
 struct extent_map_tree;
@@ -120,6 +130,8 @@ int try_release_extent_state(struct extent_map_tree *map,
 			     gfp_t mask);
 int lock_extent(struct extent_io_tree *tree, u64 start, u64 end, gfp_t mask);
 int unlock_extent(struct extent_io_tree *tree, u64 start, u64 end, gfp_t mask);
+int try_lock_extent(struct extent_io_tree *tree, u64 start, u64 end,
+		    gfp_t mask);
 int extent_read_full_page(struct extent_io_tree *tree, struct page *page,
 			  get_extent_t *get_extent);
 int __init extent_io_init(void);
@@ -162,6 +174,9 @@ int extent_invalidatepage(struct extent_io_tree *tree,
 int extent_write_full_page(struct extent_io_tree *tree, struct page *page,
 			  get_extent_t *get_extent,
 			  struct writeback_control *wbc);
+int extent_write_locked_range(struct extent_io_tree *tree, struct inode *inode,
+			      u64 start, u64 end, get_extent_t *get_extent,
+			      int mode);
 int extent_writepages(struct extent_io_tree *tree,
 		      struct address_space *mapping,
 		      get_extent_t *get_extent,
@@ -243,4 +258,12 @@ void unmap_extent_buffer(struct extent_buffer *eb, char *token, int km);
 int release_extent_buffer_tail_pages(struct extent_buffer *eb);
 int extent_range_uptodate(struct extent_io_tree *tree,
 			  u64 start, u64 end);
+int extent_clear_unlock_delalloc(struct inode *inode,
+				struct extent_io_tree *tree,
+				u64 start, u64 end, struct page *locked_page,
+				int unlock_page,
+				int clear_unlock,
+				int clear_delalloc, int clear_dirty,
+				int set_writeback,
+				int end_writeback);
 #endif