@@ -22,6 +22,7 @@
#define __ARCH_WANT_SYS_SIGPENDING
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_COMPAT_SYS_SENDFILE
+#define __ARCH_WANT_COMPAT_SYS_UTIME
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK
@@ -31,6 +31,7 @@
#define __ARCH_WANT_SYS_IPC
#define __ARCH_WANT_SYS_PAUSE
#define __ARCH_WANT_SYS_UTIME
+#define __ARCH_WANT_COMPAT_SYS_UTIME
#define __ARCH_WANT_SYS_WAITPID
#define __ARCH_WANT_SYS_SOCKETCALL
#define __ARCH_WANT_SYS_GETPGRP
@@ -152,6 +152,7 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
#define __ARCH_WANT_COMPAT_SYS_TIME
#define __ARCH_WANT_COMPAT_SYS_SCHED_RR_GET_INTERVAL
#define __ARCH_WANT_SYS_UTIME
+#define __ARCH_WANT_COMPAT_SYS_UTIME
#define __ARCH_WANT_SYS_WAITPID
#define __ARCH_WANT_SYS_SOCKETCALL
#define __ARCH_WANT_SYS_FADVISE64
@@ -47,6 +47,7 @@
#endif
#ifdef CONFIG_PPC64
#define __ARCH_WANT_COMPAT_SYS_TIME
+#define __ARCH_WANT_COMPAT_SYS_UTIME
#define __ARCH_WANT_SYS_NEWFSTATAT
#define __ARCH_WANT_COMPAT_SYS_SENDFILE
#endif
@@ -34,6 +34,7 @@
#define __ARCH_WANT_SYS_SIGPROCMASK
# ifdef CONFIG_COMPAT
# define __ARCH_WANT_COMPAT_SYS_TIME
+# define __ARCH_WANT_COMPAT_SYS_UTIME
# endif
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK
@@ -42,6 +42,7 @@
#define __ARCH_WANT_SYS_IPC
#else
#define __ARCH_WANT_COMPAT_SYS_TIME
+#define __ARCH_WANT_COMPAT_SYS_UTIME
#define __ARCH_WANT_COMPAT_SYS_SENDFILE
#endif
@@ -24,6 +24,7 @@
# include <asm/unistd_64.h>
# include <asm/unistd_64_x32.h>
# define __ARCH_WANT_COMPAT_SYS_TIME
+# define __ARCH_WANT_COMPAT_SYS_UTIME
# define __ARCH_WANT_COMPAT_SYS_PREADV64
# define __ARCH_WANT_COMPAT_SYS_PWRITEV64
# define __ARCH_WANT_COMPAT_SYS_PREADV64V2
@@ -218,11 +218,12 @@ SYSCALL_DEFINE2(utime, char __user *, filename, struct utimbuf __user *, times)
}
#endif
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_COMPAT_32BIT_TIME
/*
* Not all architectures have sys_utime, so implement this in terms
* of sys_utimes.
*/
+#ifdef __ARCH_WANT_COMPAT_SYS_UTIME
COMPAT_SYSCALL_DEFINE2(utime, const char __user *, filename,
struct compat_utimbuf __user *, t)
{
@@ -237,6 +238,7 @@ COMPAT_SYSCALL_DEFINE2(utime, const char __user *, filename,
}
return do_utimes(AT_FDCWD, filename, t ? tv : NULL, 0);
}
+#endif
COMPAT_SYSCALL_DEFINE4(utimensat, unsigned int, dfd, const char __user *, filename, struct compat_timespec __user *, t, int, flags)
{
@@ -253,6 +255,7 @@ COMPAT_SYSCALL_DEFINE4(utimensat, unsigned int, dfd, const char __user *, filena
return do_utimes(dfd, filename, t ? tv : NULL, flags);
}
+#ifdef __ARCH_WANT_COMPAT_SYS_UTIME
static long do_compat_futimesat(unsigned int dfd, const char __user *filename,
struct compat_timeval __user *t)
{
@@ -285,3 +288,4 @@ COMPAT_SYSCALL_DEFINE2(utimes, const char __user *, filename, struct compat_time
return do_compat_futimesat(AT_FDCWD, filename, t);
}
#endif
+#endif
@@ -113,11 +113,6 @@ typedef __compat_gid32_t compat_gid_t;
struct compat_sel_arg_struct;
struct rusage;
-struct compat_utimbuf {
- compat_time_t actime;
- compat_time_t modtime;
-};
-
struct compat_itimerval {
struct compat_timeval it_interval;
struct compat_timeval it_value;
@@ -22,6 +22,11 @@ struct compat_itimerspec {
struct compat_timespec it_value;
};
+struct compat_utimbuf {
+ compat_time_t actime;
+ compat_time_t modtime;
+};
+
extern int compat_get_timespec64(struct timespec64 *, const void __user *);
extern int compat_put_timespec64(const struct timespec64 *, void __user *);
extern int get_compat_itimerspec64(struct itimerspec64 *its,
After changing over to 64-bit time_t syscalls, many architectures will want compat_sys_utimensat() but not respective handlers for utime(), utimes() and futimesat(). This adds a new __ARCH_WANT_COMPAT_SYS_UTIME to complement __ARCH_WANT_SYS_UTIME. For now, all 64-bit architectures that support CONFIG_COMPAT set it, but future 64-bit architectures will not (tile would not have needed it either, but got removed). As older 32-bit architectures get converted to using CONFIG_64BIT_TIME, they will have to use __ARCH_WANT_COMPAT_SYS_UTIME instead of __ARCH_WANT_SYS_UTIME. Architectures using the generic syscall ABI don't need either of them as they never had a utime syscall. Since the compat_utimbuf structure is now required outside of CONFIG_COMPAT, I'm moving it into compat_time.h. Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- If we proceed with Christoph's suggestion of renaming all the compat time handling to something that doesn't have compat in the name, the new macro here would have to get renamed as well. --- arch/arm64/include/asm/unistd.h | 1 + arch/mips/include/asm/unistd.h | 1 + arch/parisc/include/asm/unistd.h | 1 + arch/powerpc/include/asm/unistd.h | 1 + arch/s390/include/asm/unistd.h | 1 + arch/sparc/include/asm/unistd.h | 1 + arch/x86/include/asm/unistd.h | 1 + fs/utimes.c | 6 +++++- include/linux/compat.h | 5 ----- include/linux/compat_time.h | 5 +++++ 10 files changed, 17 insertions(+), 6 deletions(-)