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Diffstat (limited to 'fs/btrfs/extent_io.h')
-rw-r--r--fs/btrfs/extent_io.h17
1 files changed, 14 insertions, 3 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index c9d1908a1ae3..86f859b87a6e 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -18,6 +18,9 @@
#define EXTENT_BOUNDARY (1 << 11)
#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.
@@ -28,14 +31,17 @@
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);
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,
@@ -245,4 +251,9 @@ 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 clear_dirty, int set_writeback,
+ int clear_writeback);
#endif