Commit 16932237 authored by Dave Kleikamp's avatar Dave Kleikamp Committed by David S. Miller

Revert "sparc64: Fix __copy_{to,from}_user_inatomic defines."

This reverts commit 145e1c00.

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: default avatarDave Kleikamp <dave.kleikamp@oracle.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ce2521bf
...@@ -262,8 +262,8 @@ extern unsigned long __must_check __clear_user(void __user *, unsigned long); ...@@ -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 strlen_user(const char __user *str);
extern __must_check long strnlen_user(const char __user *str, long n); extern __must_check long strnlen_user(const char __user *str, long n);
#define __copy_to_user_inatomic ___copy_to_user #define __copy_to_user_inatomic __copy_to_user
#define __copy_from_user_inatomic ___copy_from_user #define __copy_from_user_inatomic __copy_from_user
struct pt_regs; struct pt_regs;
extern unsigned long compute_effective_address(struct pt_regs *, extern unsigned long compute_effective_address(struct pt_regs *,
......
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