Btrfs: add and improve comments

[linux-2.6-block.git] / fs / btrfs / async-thread.h

diff --git a/fs/btrfs/async-thread.h b/fs/btrfs/async-thread.h
index 43e44d115dd1a914cf2c8dbac8aaf312c8cb8271..4ec9a2ee0f9d8c17a2b72da514b20151154aa019 100644 (file)
--- a/fs/btrfs/async-thread.h
+++ b/fs/btrfs/async-thread.h
@@ -63,14 +63,17 @@ struct btrfs_workers {
        /* once a worker has this many requests or fewer, it is idle */
        int idle_thresh;
 
-       /* list with all the work threads */
+       /* list with all the work threads.  The workers on the idle thread
+        * may be actively servicing jobs, but they haven't yet hit the
+        * idle thresh limit above.
+        */
        struct list_head worker_list;
        struct list_head idle_list;
 
        /* lock for finding the next worker thread to queue on */
        spinlock_t lock;
 
-       /* extra name for this worker */
+       /* extra name for this worker, used for current->name */
        char *name;
 };