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maccess: rename probe_kernel_address to get_kernel_nofault

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Better describe what this helper does, and match the naming of
copy_from_kernel_nofault.

Also switch the argument order around, so that it acts and looks
like get_user().

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Hellwig 2020-06-17 09:37:55 +02:00 • committed by Linus Torvalds
parent c0ee37e85e
commit 25f12ae45f
20 changed files with 40 additions and 40 deletions
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6
arch/x86/mm/fault.c
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@ -99,7 +99,7 @@ check_prefetch_opcode(struct pt_regs *regs, unsigned char *instr,
return !instr_lo || (instr_lo>>1) == 1;
case 0x00:
/* Prefetch instruction is 0x0F0D or 0x0F18 */
if (probe_kernel_address(instr, opcode))
if (get_kernel_nofault(opcode, instr))
return 0;
*prefetch = (instr_lo == 0xF) &&
@ -133,7 +133,7 @@ is_prefetch(struct pt_regs *regs, unsigned long error_code, unsigned long addr)
while (instr < max_instr) {
unsigned char opcode;
if (probe_kernel_address(instr, opcode))
if (get_kernel_nofault(opcode, instr))
break;
instr++;
@ -301,7 +301,7 @@ static int bad_address(void *p)
{
unsigned long dummy;
return probe_kernel_address((unsigned long *)p, dummy);
return get_kernel_nofault(dummy, (unsigned long *)p);
}
static void dump_pagetable(unsigned long address)