commit 657bec850ff98b82b3a617b588a6523487344ccc
author Al Viro <viro@zeniv.linux.org.uk> Wed May 30 02:12:40 2012 -0400
committer Al Viro <viro@zeniv.linux.org.uk> Wed May 30 21:04:56 2012 -0400
tree 46ff90dc5823c1602bcc886b24d3964fa7148a76
parent 7696e0c37f43187431388df7d8087a099b3e2f1c

ia64, sparc64: convert wrappers around do_mremap() to sys_mremap()

they contain open-coded sys_mremap()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/ia64/kernel/sys_ia64.c

diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
index 609d500..d9439ef 100644
--- a/arch/ia64/kernel/sys_ia64.c
+++ b/arch/ia64/kernel/sys_ia64.c
@@ -171,22 +171,9 @@
 ia64_mremap (unsigned long addr, unsigned long old_len, unsigned long new_len, unsigned long flags,
 	     unsigned long new_addr)
 {
-	extern unsigned long do_mremap (unsigned long addr,
-					unsigned long old_len,
-					unsigned long new_len,
-					unsigned long flags,
-					unsigned long new_addr);
-
-	down_write(&current->mm->mmap_sem);
-	{
-		addr = do_mremap(addr, old_len, new_len, flags, new_addr);
-	}
-	up_write(&current->mm->mmap_sem);
-
-	if (IS_ERR((void *) addr))
-		return addr;
-
-	force_successful_syscall_return();
+	addr = sys_mremap(addr, old_len, new_len, flags, new_addr);
+	if (!IS_ERR((void *) addr))
+		force_successful_syscall_return();
 	return addr;
 }