[PATCH] cifs: Do not use large smb buffers in response path

unless response is larger than 256 bytes.  This cuts more than 1/3 of
the large memory allocations that cifs does and should be a huge help to
memory pressure under stress. 

Signed-off-by: Steve French (sfrench@us.ibm.com)
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 5 insertions, 2 deletions

diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index aab62ed46982..f9e16b39898c 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -1,7 +1,7 @@
 /*
  *   fs/cifs/transport.c
  *
- *   Copyright (C) International Business Machines  Corp., 2002,2004
+ *   Copyright (C) International Business Machines  Corp., 2002,2005
  *   Author(s): Steve French (sfrench@us.ibm.com)
  *
  *   This library is free software; you can redistribute it and/or modify
@@ -79,7 +79,10 @@ DeleteMidQEntry(struct mid_q_entry *midEntry)
         list_del(&midEntry->qhead);
         atomic_dec(&midCount);
         spin_unlock(&GlobalMid_Lock);
-        cifs_buf_release(midEntry->resp_buf);
+        if(midEntry->largeBuf)
+                cifs_buf_release(midEntry->resp_buf);
+        else
+                cifs_small_buf_release(midEntry->resp_buf);
         mempool_free(midEntry, cifs_mid_poolp);
 }