linux-kernel - [PATCH 4.0 159/220] xtensa: provide __NR_sync_file_range2 instead of __NR_sync_file

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Message-Id: <20150502185901.201919721@linuxfoundation.org>
Date:	Sat,  2 May 2015 21:01:14 +0200
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Max Filippov <jcmvbkbc@...il.com>
Subject: [PATCH 4.0 159/220] xtensa: provide __NR_sync_file_range2 instead of __NR_sync_file_range

4.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Max Filippov <jcmvbkbc@...il.com>

commit 01e84c70fe40c8111f960987bcf7f931842e6d07 upstream.

xtensa actually uses sync_file_range2 implementation, so it should
define __NR_sync_file_range2 as other architectures that use that
function. That fixes userspace interface (that apparently never worked)
and avoids special-casing xtensa in libc implementations.
See the thread ending at
http://lists.busybox.net/pipermail/uclibc/2015-February/048833.html
for more details.

Signed-off-by: Max Filippov <jcmvbkbc@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/xtensa/include/uapi/asm/unistd.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/xtensa/include/uapi/asm/unistd.h
+++ b/arch/xtensa/include/uapi/asm/unistd.h
@@ -715,7 +715,7 @@ __SYSCALL(323, sys_process_vm_writev, 6)
 __SYSCALL(324, sys_name_to_handle_at, 5)
 #define __NR_open_by_handle_at			325
 __SYSCALL(325, sys_open_by_handle_at, 3)
-#define __NR_sync_file_range			326
+#define __NR_sync_file_range2			326
 __SYSCALL(326, sys_sync_file_range2, 6)
 #define __NR_perf_event_open			327
 __SYSCALL(327, sys_perf_event_open, 5)


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