[linux-cifs-client] [PATCH] cifs: fix broken GFP_NOFS usage

[Akinobu Mita]

Some memory allocations in cifs use GFP_KERNEL | GFP_NOFS as gfs flags
but GFP_KERNEL | GFP_NOFS equals to GFP_KERNEL. So these GFP_NOFS have
no effect.

This patch fixes these flags and also removes unnecessary casts to
mempool_alloc.

Signed-off-by: Akinobu Mita <akinobu.mita at gmail.com>
Cc: Steve French <sfrench at samba.org>
Cc: linux-cifs-client at lists.samba.org
---
 fs/cifs/misc.c      |    6 ++----
 fs/cifs/transport.c |    3 +--
 2 files changed, 3 insertions(+), 6 deletions(-)

Index: 2.6-git/fs/cifs/misc.c
===================================================================
--- 2.6-git.orig/fs/cifs/misc.c
+++ 2.6-git/fs/cifs/misc.c
@@ -150,8 +150,7 @@ cifs_buf_get(void)
    but it may be more efficient to always alloc same size
    albeit slightly larger than necessary and maxbuffersize
    defaults to this and can not be bigger */
-	ret_buf = (struct smb_hdr *) mempool_alloc(cifs_req_poolp,
-						   GFP_KERNEL | GFP_NOFS);
+	ret_buf = mempool_alloc(cifs_req_poolp, GFP_NOFS);
 
 	/* clear the first few header bytes */
 	/* for most paths, more is cleared in header_assemble */
@@ -188,8 +187,7 @@ cifs_small_buf_get(void)
    but it may be more efficient to always alloc same size
    albeit slightly larger than necessary and maxbuffersize
    defaults to this and can not be bigger */
-	ret_buf = (struct smb_hdr *) mempool_alloc(cifs_sm_req_poolp,
-						   GFP_KERNEL | GFP_NOFS);
+	ret_buf = mempool_alloc(cifs_sm_req_poolp, GFP_NOFS);
 	if (ret_buf) {
 	/* No need to clear memory here, cleared in header assemble */
 	/*	memset(ret_buf, 0, sizeof(struct smb_hdr) + 27);*/
Index: 2.6-git/fs/cifs/transport.c
===================================================================
--- 2.6-git.orig/fs/cifs/transport.c
+++ 2.6-git/fs/cifs/transport.c
@@ -50,8 +50,7 @@ AllocMidQEntry(const struct smb_hdr *smb
 		return NULL;
 	}
 
-	temp = (struct mid_q_entry *) mempool_alloc(cifs_mid_poolp,
-						    GFP_KERNEL | GFP_NOFS);
+	temp = mempool_alloc(cifs_mid_poolp, GFP_NOFS);
 	if (temp == NULL)
 		return temp;
 	else {