[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>
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index aab62ed..f9e16b3 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 @@
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);
}