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um: switch to RAW_COPY_USER

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2017-03-28 01:33:09 -04:00
parent d597580d37
commit a668ce3a00
3 changed files with 9 additions and 8 deletions
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8
arch/um/kernel/skas/uaccess.c
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@@ -139,7 +139,7 @@ static int copy_chunk_from_user(unsigned long from, int len, void *arg)
return 0;
}
long __copy_from_user(void *to, const void __user *from, unsigned long n)
unsigned long raw_copy_from_user(void *to, const void __user *from, unsigned long n)
{
if (uaccess_kernel()) {
memcpy(to, (__force void*)from, n);
@@ -148,7 +148,7 @@ long __copy_from_user(void *to, const void __user *from, unsigned long n)
return buffer_op((unsigned long) from, n, 0, copy_chunk_from_user, &to);
}
EXPORT_SYMBOL(__copy_from_user);
EXPORT_SYMBOL(raw_copy_from_user);
static int copy_chunk_to_user(unsigned long to, int len, void *arg)
{
@@ -159,7 +159,7 @@ static int copy_chunk_to_user(unsigned long to, int len, void *arg)
return 0;
}
long __copy_to_user(void __user *to, const void *from, unsigned long n)
unsigned long raw_copy_to_user(void __user *to, const void *from, unsigned long n)
{
if (uaccess_kernel()) {
memcpy((__force void *) to, from, n);
@@ -168,7 +168,7 @@ long __copy_to_user(void __user *to, const void *from, unsigned long n)
return buffer_op((unsigned long) to, n, 1, copy_chunk_to_user, &from);
}
EXPORT_SYMBOL(__copy_to_user);
EXPORT_SYMBOL(raw_copy_to_user);
static int strncpy_chunk_from_user(unsigned long from, int len, void *arg)
{