linux-kernel - [PATCH 4/4] exec: unexport acct_arg_size() and get_arg

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Date:	Tue, 30 Nov 2010 21:01:52 +0100
From:	Oleg Nesterov <oleg@...hat.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	LKML <linux-kernel@...r.kernel.org>, linux-mm <linux-mm@...ck.org>,
	pageexec@...email.hu, Solar Designer <solar@...nwall.com>,
	Eugene Teo <eteo@...hat.com>,
	Brad Spengler <spender@...ecurity.net>,
	Roland McGrath <roland@...hat.com>
Subject: [PATCH 4/4] exec: unexport acct_arg_size() and get_arg_page()

Unexport acct_arg_size() and get_arg_page(), fs/compat.c doesn't
need them any longer.

Signed-off-by: Oleg Nesterov <oleg@...hat.com>
---

 include/linux/binfmts.h |    4 ----
 fs/exec.c               |    8 ++++----
 2 files changed, 4 insertions(+), 8 deletions(-)

--- K/include/linux/binfmts.h~4_unexport_arg_helpers	2010-11-30 18:30:45.000000000 +0100
+++ K/include/linux/binfmts.h	2010-11-30 20:38:13.000000000 +0100
@@ -60,10 +60,6 @@ struct linux_binprm{
 	unsigned long loader, exec;
 };
 
-extern void acct_arg_size(struct linux_binprm *bprm, unsigned long pages);
-extern struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
-					int write);
-
 #define BINPRM_FLAGS_ENFORCE_NONDUMP_BIT 0
 #define BINPRM_FLAGS_ENFORCE_NONDUMP (1 << BINPRM_FLAGS_ENFORCE_NONDUMP_BIT)
 
--- K/fs/exec.c~4_unexport_arg_helpers	2010-11-30 20:15:11.000000000 +0100
+++ K/fs/exec.c	2010-11-30 20:38:13.000000000 +0100
@@ -165,7 +165,7 @@ out:
 
 #ifdef CONFIG_MMU
 
-void acct_arg_size(struct linux_binprm *bprm, unsigned long pages)
+static void acct_arg_size(struct linux_binprm *bprm, unsigned long pages)
 {
 	struct mm_struct *mm = current->mm;
 	long diff = (long)(pages - bprm->vma_pages);
@@ -184,7 +184,7 @@ void acct_arg_size(struct linux_binprm *
 #endif
 }
 
-struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
+static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
 		int write)
 {
 	struct page *page;
@@ -298,11 +298,11 @@ static bool valid_arg_len(struct linux_b
 
 #else
 
-void acct_arg_size(struct linux_binprm *bprm, unsigned long pages)
+static inline void acct_arg_size(struct linux_binprm *bprm, unsigned long pages)
 {
 }
 
-struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
+static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
 		int write)
 {
 	struct page *page;

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