This is a note to let you know that I've just added the patch titled
Revert "sparc64: Fix __copy_{to,from}_user_inatomic defines."
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
revert-sparc64-fix-__copy_-to-from-_user_inatomic-defines.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From foo@baz Mon Apr 14 15:35:09 PDT 2014
From: Dave Kleikamp <[email protected]>
Date: Mon, 16 Dec 2013 15:01:00 -0600
Subject: Revert "sparc64: Fix __copy_{to,from}_user_inatomic defines."
From: Dave Kleikamp <[email protected]>
[ 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 <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: [email protected]
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/sparc/include/asm/uaccess_64.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/sparc/include/asm/uaccess_64.h
+++ b/arch/sparc/include/asm/uaccess_64.h
@@ -266,8 +266,8 @@ extern long __strnlen_user(const char __
#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__ */
Patches currently in stable-queue which might be from [email protected]
are
queue-3.4/sparc64-don-t-treat-64-bit-syscall-return-codes-as-32-bit.patch
queue-3.4/revert-sparc64-fix-__copy_-to-from-_user_inatomic-defines.patch
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