jffs2: remove unnecessary GC pass on umount

We do not need to call 'jffs2_write_super()' on unmount. This function
causes a GC pass to make sure the current contents is pushed out with
the data which we already have on the media.

But this is not needed on unmount and only slows unmount down unnecessarily.
It is enough to just sync the write-buffer.

This call was added by one of the generic VFS rework patch-sets,
see 8c85e125124a473d6f3e9bb187b0b84207f81d91.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
index 3f1c90c2bdf84f7679f7da25c315cce0a903bd4b..1613cd28304234a2b97d2aa7e72eeca704f21def 100644 (file)
--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -333,9 +333,6 @@ static void jffs2_put_super (struct super_block *sb)
 
        jffs2_dbg(2, "%s()\n", __func__);
 
-       if (sb->s_dirt)
-               jffs2_write_super(sb);
-
        mutex_lock(&c->alloc_sem);
        jffs2_flush_wbuf_pad(c);
        mutex_unlock(&c->alloc_sem);