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maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault

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Better describe what these functions do.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
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 09:37:53 +02:00
committed by Linus Torvalds
parent b3a9e3b962
commit fe557319aa
50 changed files with 138 additions and 122 deletions
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4
arch/powerpc/kernel/trace/ftrace.c
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@@ -226,7 +226,7 @@ __ftrace_make_nop(struct module *mod,
unsigned long ip = rec->ip;
unsigned long tramp;
if (probe_kernel_read(&op, (void *)ip, MCOUNT_INSN_SIZE))
if (copy_from_kernel_nofault(&op, (void *)ip, MCOUNT_INSN_SIZE))
return -EFAULT;
/* Make sure that that this is still a 24bit jump */
@@ -249,7 +249,7 @@ __ftrace_make_nop(struct module *mod,
pr_devel("ip:%lx jumps to %lx", ip, tramp);
/* Find where the trampoline jumps to */
if (probe_kernel_read(jmp, (void *)tramp, sizeof(jmp))) {
if (copy_from_kernel_nofault(jmp, (void *)tramp, sizeof(jmp))) {
pr_err("Failed to read %lx\n", tramp);
return -EFAULT;
}