UBIFS: document dark_wm and dead_wm better

[mirror_ubuntu-zesty-kernel.git] / fs / ubifs / super.c

diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 53811e567a6983966a6b3ee3da26ca15120a54ca..da99da098efd2d14bc63fc91e9b5c65fc64832ee 100644 (file)
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -573,15 +573,8 @@ static int init_constants_early(struct ubifs_info *c)
        c->ranges[UBIFS_IDX_NODE].max_len = INT_MAX;
 
        /*
-        * Initialize dead and dark LEB space watermarks.
-        *
-        * Dead space is the space which cannot be used. Its watermark is
-        * equivalent to min. I/O unit or minimum node size if it is greater
-        * then min. I/O unit.
-        *
-        * Dark space is the space which might be used, or might not, depending
-        * on which node should be written to the LEB. Its watermark is
-        * equivalent to maximum UBIFS node size.
+        * Initialize dead and dark LEB space watermarks. See gc.c for comments
+        * about these values.
         */
        c->dead_wm = ALIGN(MIN_WRITE_SZ, c->min_io_size);
        c->dark_wm = ALIGN(UBIFS_MAX_NODE_SZ, c->min_io_size);