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

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[ Upstream commit 16932237f2 ]

This reverts commit 145e1c0023.

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 <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: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dave Kleikamp 2013-12-16 15:01:00 -06:00 committed by Greg Kroah-Hartman
parent 10d52681f0
commit 53c93feee5
1 changed files with 2 additions and 2 deletions
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4
arch/sparc/include/asm/uaccess_64.h
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@ -266,8 +266,8 @@ extern long __strnlen_user(const char __user *, long len);
#define strlen_user __strlen_user
#define strnlen_user __strnlen_user
#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
#endif /* __ASSEMBLY__ */