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| author | Al Viro <viro@zeniv.linux.org.uk> | 2017-03-28 01:33:09 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2017-03-28 18:24:03 -0400 |
| commit | a668ce3a001fe0564deb6357129bfd81f757743b (patch) | |
| tree | 80714c1ec1b3763020a2efec695738e4fdd654d1 /arch | |
| parent | d597580d373774b1bdab84b3d26ff0b55162b916 (diff) | |
| download | linux-a668ce3a001fe0564deb6357129bfd81f757743b.tar.bz2 | |
um: switch to RAW_COPY_USER
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/um/Kconfig.common | 1 | ||||
| -rw-r--r-- | arch/um/include/asm/uaccess.h | 8 | ||||
| -rw-r--r-- | arch/um/kernel/skas/uaccess.c | 8 |
3 files changed, 9 insertions, 8 deletions
diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common index fd443852103c..e13f763849b1 100644 --- a/arch/um/Kconfig.common +++ b/arch/um/Kconfig.common @@ -13,6 +13,7 @@ config UML select GENERIC_CLOCKEVENTS select HAVE_GCC_PLUGINS select TTY # Needed for line.c + select ARCH_HAS_RAW_COPY_USER config MMU bool diff --git a/arch/um/include/asm/uaccess.h b/arch/um/include/asm/uaccess.h index 9396c8a4e920..cc00fc50768f 100644 --- a/arch/um/include/asm/uaccess.h +++ b/arch/um/include/asm/uaccess.h @@ -21,8 +21,8 @@ #define __addr_range_nowrap(addr, size) \ ((unsigned long) (addr) <= ((unsigned long) (addr) + (size))) -extern long __copy_from_user(void *to, const void __user *from, unsigned long n); -extern long __copy_to_user(void __user *to, const void *from, unsigned long n); +extern unsigned long raw_copy_from_user(void *to, const void __user *from, unsigned long n); +extern unsigned long raw_copy_to_user(void __user *to, const void *from, unsigned long n); extern long __strncpy_from_user(char *dst, const char __user *src, long count); extern long __strnlen_user(const void __user *str, long len); extern unsigned long __clear_user(void __user *mem, unsigned long len); @@ -33,8 +33,8 @@ static inline int __access_ok(unsigned long addr, unsigned long size); #define __clear_user __clear_user #define __strnlen_user __strnlen_user #define __strncpy_from_user __strncpy_from_user -#define __copy_to_user_inatomic __copy_to_user -#define __copy_from_user_inatomic __copy_from_user +#define INLINE_COPY_FROM_USER +#define INLINE_COPY_TO_USER #include <asm-generic/uaccess.h> diff --git a/arch/um/kernel/skas/uaccess.c b/arch/um/kernel/skas/uaccess.c index 22c9f79db8e6..d450797a3a7c 100644 --- a/arch/um/kernel/skas/uaccess.c +++ b/arch/um/kernel/skas/uaccess.c @@ -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) { |