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    Subject[PATCH 3.12 060/142] xtensa: provide __NR_sync_file_range2 instead of __NR_sync_file_range
    Date
    From: Max Filippov <jcmvbkbc@gmail.com>

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

    ===============

    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@gmail.com>
    Signed-off-by: Jiri Slaby <jslaby@suse.cz>
    ---
    arch/xtensa/include/uapi/asm/unistd.h | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/arch/xtensa/include/uapi/asm/unistd.h b/arch/xtensa/include/uapi/asm/unistd.h
    index 513effd48060..d07c1886bc8f 100644
    --- 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)
    --
    2.3.7


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