X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=include%2Fasm-powerpc%2Fuaccess.h;h=d83fc29c2bbf13ed8deed9244e7f71c78dd4c78c;hb=f0cd91a68acdc9b49d7f6738b514a426da627649;hp=33af730f0d198e8e973231154b9787bfec934443;hpb=48fe4871569f019c653efb95b26dda976f84c468;p=powerpc.git

diff --git a/include/asm-powerpc/uaccess.h b/include/asm-powerpc/uaccess.h
index 33af730f0d..d83fc29c2b 100644
--- a/include/asm-powerpc/uaccess.h
+++ b/include/asm-powerpc/uaccess.h
@@ -7,6 +7,7 @@
 #include <linux/sched.h>
 #include <linux/errno.h>
 #include <asm/processor.h>
+#include <asm/page.h>
 
 #define VERIFY_READ	0
 #define VERIFY_WRITE	1
@@ -120,14 +121,6 @@ struct exception_table_entry {
 
 extern long __put_user_bad(void);
 
-#ifdef __powerpc64__
-#define __EX_TABLE_ALIGN	"3"
-#define __EX_TABLE_TYPE		"llong"
-#else
-#define __EX_TABLE_ALIGN	"2"
-#define __EX_TABLE_TYPE		"long"
-#endif
-
 /*
  * We don't tell gcc that we are accessing memory, but this is OK
  * because we do not write to any memory gcc knows about, so there
@@ -142,11 +135,12 @@ extern long __put_user_bad(void);
 		"	b 2b\n"					\
 		".previous\n"					\
 		".section __ex_table,\"a\"\n"			\
-		"	.align " __EX_TABLE_ALIGN "\n"		\
-		"	."__EX_TABLE_TYPE" 1b,3b\n"		\
+		"	.balign %5\n"				\
+			PPC_LONG "1b,3b\n"			\
 		".previous"					\
 		: "=r" (err)					\
-		: "r" (x), "b" (addr), "i" (-EFAULT), "0" (err))
+		: "r" (x), "b" (addr), "i" (-EFAULT), "0" (err),\
+		  "i"(sizeof(unsigned long)))
 
 #ifdef __powerpc64__
 #define __put_user_asm2(x, ptr, retval)				\
@@ -162,12 +156,13 @@ extern long __put_user_bad(void);
 		"	b 3b\n"					\
 		".previous\n"					\
 		".section __ex_table,\"a\"\n"			\
-		"	.align " __EX_TABLE_ALIGN "\n"		\
-		"	." __EX_TABLE_TYPE " 1b,4b\n"		\
-		"	." __EX_TABLE_TYPE " 2b,4b\n"		\
+		"	.balign %5\n"				\
+			PPC_LONG "1b,4b\n"			\
+			PPC_LONG "2b,4b\n"			\
 		".previous"					\
 		: "=r" (err)					\
-		: "r" (x), "b" (addr), "i" (-EFAULT), "0" (err))
+		: "r" (x), "b" (addr), "i" (-EFAULT), "0" (err),\
+		  "i"(sizeof(unsigned long)))
 #endif /* __powerpc64__ */
 
 #define __put_user_size(x, ptr, size, retval)			\
@@ -185,9 +180,11 @@ do {								\
 #define __put_user_nocheck(x, ptr, size)			\
 ({								\
 	long __pu_err;						\
-	might_sleep();						\
+	__typeof__(*(ptr)) __user *__pu_addr = (ptr);		\
+	if (!is_kernel_addr((unsigned long)__pu_addr))		\
+		might_sleep();					\
 	__chk_user_ptr(ptr);					\
-	__put_user_size((x), (ptr), (size), __pu_err);		\
+	__put_user_size((x), __pu_addr, (size), __pu_err);	\
 	__pu_err;						\
 })
 
@@ -213,11 +210,12 @@ extern long __get_user_bad(void);
 		"	b 2b\n"				\
 		".previous\n"				\
 		".section __ex_table,\"a\"\n"		\
-		"	.align "__EX_TABLE_ALIGN "\n"	\
-		"	." __EX_TABLE_TYPE " 1b,3b\n"	\
+		"	.balign %5\n"			\
+			PPC_LONG "1b,3b\n"		\
 		".previous"				\
 		: "=r" (err), "=r" (x)			\
-		: "b" (addr), "i" (-EFAULT), "0" (err))
+		: "b" (addr), "i" (-EFAULT), "0" (err),	\
+		  "i"(sizeof(unsigned long)))
 
 #ifdef __powerpc64__
 #define __get_user_asm2(x, addr, err)			\
@@ -235,12 +233,13 @@ extern long __get_user_bad(void);
 		"	b 3b\n"				\
 		".previous\n"				\
 		".section __ex_table,\"a\"\n"		\
-		"	.align " __EX_TABLE_ALIGN "\n"	\
-		"	." __EX_TABLE_TYPE " 1b,4b\n"	\
-		"	." __EX_TABLE_TYPE " 2b,4b\n"	\
+		"	.balign %5\n"			\
+			PPC_LONG "1b,4b\n"		\
+			PPC_LONG "2b,4b\n"		\
 		".previous"				\
 		: "=r" (err), "=&r" (x)			\
-		: "b" (addr), "i" (-EFAULT), "0" (err))
+		: "b" (addr), "i" (-EFAULT), "0" (err),	\
+		  "i"(sizeof(unsigned long)))
 #endif /* __powerpc64__ */
 
 #define __get_user_size(x, ptr, size, retval)			\
@@ -262,9 +261,11 @@ do {								\
 ({								\
 	long __gu_err;						\
 	unsigned long __gu_val;					\
+	const __typeof__(*(ptr)) __user *__gu_addr = (ptr);	\
 	__chk_user_ptr(ptr);					\
-	might_sleep();						\
-	__get_user_size(__gu_val, (ptr), (size), __gu_err);	\
+	if (!is_kernel_addr((unsigned long)__gu_addr))		\
+		might_sleep();					\
+	__get_user_size(__gu_val, __gu_addr, (size), __gu_err);	\
 	(x) = (__typeof__(*(ptr)))__gu_val;			\
 	__gu_err;						\
 })
@@ -274,9 +275,11 @@ do {								\
 ({								\
 	long __gu_err;						\
 	long long __gu_val;					\
+	const __typeof__(*(ptr)) __user *__gu_addr = (ptr);	\
 	__chk_user_ptr(ptr);					\
-	might_sleep();						\
-	__get_user_size(__gu_val, (ptr), (size), __gu_err);	\
+	if (!is_kernel_addr((unsigned long)__gu_addr))		\
+		might_sleep();					\
+	__get_user_size(__gu_val, __gu_addr, (size), __gu_err);	\
 	(x) = (__typeof__(*(ptr)))__gu_val;			\
 	__gu_err;						\
 })