summaryrefslogtreecommitdiff
path: root/fs/btrfs/extent_io.h
diff options
context:
space:
mode:
Diffstat (limited to 'fs/btrfs/extent_io.h')
-rw-r--r--fs/btrfs/extent_io.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 5e91fb9d1764..06f030c0084c 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -41,9 +41,10 @@
#define EXTENT_BUFFER_TREE_REF 5
#define EXTENT_BUFFER_STALE 6
#define EXTENT_BUFFER_WRITEBACK 7
-#define EXTENT_BUFFER_IOERR 8
+#define EXTENT_BUFFER_READ_ERR 8 /* read IO error */
#define EXTENT_BUFFER_DUMMY 9
#define EXTENT_BUFFER_IN_TREE 10
+#define EXTENT_BUFFER_WRITE_ERR 11 /* write IO error */
/* these are flags for extent_clear_unlock_delalloc */
#define PAGE_UNLOCK (1 << 0)
@@ -141,7 +142,9 @@ struct extent_buffer {
atomic_t blocking_readers;
atomic_t spinning_readers;
atomic_t spinning_writers;
- int lock_nested;
+ short lock_nested;
+ /* >= 0 if eb belongs to a log tree, -1 otherwise */
+ short log_index;
/* protects write locks */
rwlock_t lock;