return 1;
}
-/* this function will go away soon - use access_ok() instead */
-static inline int __deprecated verify_area(int type, const void __user * addr, unsigned long size)
-{
- return 0;
-}
-
/*
* The exception table consists of pairs of addresses: the first is the
* address of an instruction that is allowed to fault, and the second is
* with the main instruction path. This means when everything is well,
* we don't even have to jump over them. Further, they do not intrude
* on our cache or tlb entries.
- *
- * There is a special way how to put a range of potentially faulting
- * insns (like twenty ldd/std's with now intervening other instructions)
- * You specify address of first in insn and 0 in fixup and in the next
- * exception_table_entry you specify last potentially faulting insn + 1
- * and in fixup the routine which should handle the fault.
- * That fixup code will get
- * (faulting_insn_address - first_insn_in_the_range_address)/4
- * in %g2 (ie. index of the faulting instruction in the range).
*/
-struct exception_table_entry
-{
- unsigned insn, fixup;
+struct exception_table_entry {
+ unsigned int insn, fixup;
};
-/* Special exable search, which handles ranges. Returns fixup */
-unsigned long search_extables_range(unsigned long addr, unsigned long *g2);
-
extern void __ret_efault(void);
+extern void __retl_efault(void);
/* Uh, these should become the main single-value transfer routines..
* They automatically use the right size if we just have the right
default: __pu_ret = __put_user_bad(); break; \
} __pu_ret; })
-#define __put_user_nocheck_ret(data,addr,size,retval) ({ \
-register int __foo __asm__ ("l1"); \
-switch (size) { \
-case 1: __put_user_asm_ret(data,b,addr,retval,__foo); break; \
-case 2: __put_user_asm_ret(data,h,addr,retval,__foo); break; \
-case 4: __put_user_asm_ret(data,w,addr,retval,__foo); break; \
-case 8: __put_user_asm_ret(data,x,addr,retval,__foo); break; \
-default: if (__put_user_bad()) return retval; break; \
-} })
-
#define __put_user_asm(x,size,addr,ret) \
__asm__ __volatile__( \
"/* Put user asm, inline. */\n" \
"b 2b\n\t" \
" mov %3, %0\n\n\t" \
".previous\n\t" \
- ".section __ex_table,#alloc\n\t" \
+ ".section __ex_table,\"a\"\n\t" \
".align 4\n\t" \
".word 1b, 3b\n\t" \
".previous\n\n\t" \
: "=r" (ret) : "r" (x), "r" (__m(addr)), \
"i" (-EFAULT))
-#define __put_user_asm_ret(x,size,addr,ret,foo) \
-if (__builtin_constant_p(ret) && ret == -EFAULT) \
-__asm__ __volatile__( \
- "/* Put user asm ret, inline. */\n" \
-"1:\t" "st"#size "a %1, [%2] %%asi\n\n\t" \
- ".section __ex_table,#alloc\n\t" \
- ".align 4\n\t" \
- ".word 1b, __ret_efault\n\n\t" \
- ".previous\n\n\t" \
- : "=r" (foo) : "r" (x), "r" (__m(addr))); \
-else \
-__asm__ __volatile__( \
- "/* Put user asm ret, inline. */\n" \
-"1:\t" "st"#size "a %1, [%2] %%asi\n\n\t" \
- ".section .fixup,#alloc,#execinstr\n\t" \
- ".align 4\n" \
-"3:\n\t" \
- "ret\n\t" \
- " restore %%g0, %3, %%o0\n\n\t" \
- ".previous\n\t" \
- ".section __ex_table,#alloc\n\t" \
- ".align 4\n\t" \
- ".word 1b, 3b\n\n\t" \
- ".previous\n\n\t" \
- : "=r" (foo) : "r" (x), "r" (__m(addr)), \
- "i" (ret))
-
extern int __put_user_bad(void);
#define __get_user_nocheck(data,addr,size,type) ({ \
"b 2b\n\t" \
" mov %3, %0\n\n\t" \
".previous\n\t" \
- ".section __ex_table,#alloc\n\t" \
+ ".section __ex_table,\"a\"\n\t" \
".align 4\n\t" \
".word 1b, 3b\n\n\t" \
".previous\n\t" \
__asm__ __volatile__( \
"/* Get user asm ret, inline. */\n" \
"1:\t" "ld"#size "a [%1] %%asi, %0\n\n\t" \
- ".section __ex_table,#alloc\n\t" \
+ ".section __ex_table,\"a\"\n\t" \
".align 4\n\t" \
".word 1b,__ret_efault\n\n\t" \
".previous\n\t" \
"ret\n\t" \
" restore %%g0, %2, %%o0\n\n\t" \
".previous\n\t" \
- ".section __ex_table,#alloc\n\t" \
+ ".section __ex_table,\"a\"\n\t" \
".align 4\n\t" \
".word 1b, 3b\n\n\t" \
".previous\n\t" \
{
unsigned long ret = ___copy_from_user(to, from, size);
- if (ret)
+ if (unlikely(ret))
ret = copy_from_user_fixup(to, from, size);
return ret;
}
{
unsigned long ret = ___copy_to_user(to, from, size);
- if (ret)
+ if (unlikely(ret))
ret = copy_to_user_fixup(to, from, size);
return ret;
}
{
unsigned long ret = ___copy_in_user(to, from, size);
- if (ret)
+ if (unlikely(ret))
ret = copy_in_user_fixup(to, from, size);
return ret;
}
#define __copy_in_user copy_in_user
-extern unsigned long __must_check __bzero_noasi(void __user *, unsigned long);
-
-static inline unsigned long __must_check
-__clear_user(void __user *addr, unsigned long size)
-{
-
- return __bzero_noasi(addr, size);
-}
+extern unsigned long __must_check __clear_user(void __user *, unsigned long);
#define clear_user __clear_user
git://git.onelab.eu / linux-2.6.git / blobdiff