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add asm-generic/extable.h

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... and make the users of generic uaccess.h use that.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2016-12-25 01:22:09 -05:00
parent 444f02c458
commit aaa2e7ac80
10 changed files with 34 additions and 22 deletions
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20
include/asm-generic/uaccess.h
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@@ -47,24 +47,6 @@ static inline int __access_ok(unsigned long addr, unsigned long size)
}
#endif
/*
* 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
* the address at which the program should continue. No registers are
* modified, so it is entirely up to the continuation code to figure out
* what to do.
*
* All the routines below use bits of fixup code that are out of line
* 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.
*/
struct exception_table_entry
{
unsigned long insn, fixup;
};
/*
* architectures with an MMU should override these two
*/
@@ -344,4 +326,6 @@ clear_user(void __user *to, unsigned long n)
return __clear_user(to, n);
}
#include <asm/extable.h>
#endif /* __ASM_GENERIC_UACCESS_H */