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authorChris Mason <chris.mason@oracle.com>2011-11-06 03:05:08 -0500
committerChris Mason <chris.mason@oracle.com>2011-11-06 03:05:08 -0500
commit531f4b1ae5e0fc8c9b3f03838218e5ea178f80d3 (patch)
tree63efdfe9b192243fefb76be3921b9a2aaa26291e /fs/btrfs/extent_io.h
parentc06a0e120a4e381a1c291c1fce3c6155c5791cae (diff)
parent7a26285eea8eb92e0088db011571d887d4551b0f (diff)
Merge branch 'for-chris' of git://github.com/sensille/linux into integration
Conflicts: fs/btrfs/ctree.h Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/extent_io.h')
-rw-r--r--fs/btrfs/extent_io.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index cbd4824a7c9..697570eed9e 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -33,6 +33,7 @@
#define EXTENT_BUFFER_BLOCKING 1
#define EXTENT_BUFFER_DIRTY 2
#define EXTENT_BUFFER_CORRUPT 3
+#define EXTENT_BUFFER_READAHEAD 4 /* this got triggered by readahead */
/* these are flags for extent_clear_unlock_delalloc */
#define EXTENT_CLEAR_UNLOCK_PAGE 0x1
@@ -252,6 +253,9 @@ struct extent_buffer *alloc_extent_buffer(struct extent_io_tree *tree,
struct extent_buffer *find_extent_buffer(struct extent_io_tree *tree,
u64 start, unsigned long len);
void free_extent_buffer(struct extent_buffer *eb);
+#define WAIT_NONE 0
+#define WAIT_COMPLETE 1
+#define WAIT_PAGE_LOCK 2
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);