From: Dave Kleikamp Date: Mon, 16 Dec 2013 21:01:00 +0000 (-0600) Subject: Revert "sparc64: Fix __copy_{to,from}_user_inatomic defines." X-Git-Url: http://git.mmlx.us/?a=commitdiff_plain;h=667a65c16786d9a97c2b7f2b76945b8694755e32;p=linux-edison.git Revert "sparc64: Fix __copy_{to,from}_user_inatomic defines." [ Upstream commit 16932237f2978a2265662f8de4af743b1f55a209 ] This reverts commit 145e1c0023585e0e8f6df22316308ec61c5066b2. This commit broke the behavior of __copy_from_user_inatomic when it is only partially successful. Instead of returning the number of bytes not copied, it now returns 1. This translates to the wrong value being returned by iov_iter_copy_from_user_atomic. xfstests generic/246 and LTP writev01 both fail on btrfs and nfs because of this. Signed-off-by: Dave Kleikamp Cc: Hugh Dickins Cc: David S. Miller Cc: sparclinux@vger.kernel.org Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- diff --git a/arch/sparc/include/asm/uaccess_64.h b/arch/sparc/include/asm/uaccess_64.h index e562d3caee5..ad7e178337f 100644 --- a/arch/sparc/include/asm/uaccess_64.h +++ b/arch/sparc/include/asm/uaccess_64.h @@ -262,8 +262,8 @@ extern unsigned long __must_check __clear_user(void __user *, unsigned long); extern __must_check long strlen_user(const char __user *str); extern __must_check long strnlen_user(const char __user *str, long n); -#define __copy_to_user_inatomic ___copy_to_user -#define __copy_from_user_inatomic ___copy_from_user +#define __copy_to_user_inatomic __copy_to_user +#define __copy_from_user_inatomic __copy_from_user struct pt_regs; extern unsigned long compute_effective_address(struct pt_regs *,