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y2038: syscalls: change remaining timeval to __kernel_old_timeval

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All of the remaining syscalls that pass a timeval (gettimeofday, utime,
futimesat) can trivially be changed to pass a __kernel_old_timeval
instead, which has a compatible layout, but avoids ambiguity with
the timeval type in user space.

Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann
2019-10-25 22:56:17 +02:00
parent bdd565f817
commit 75d319c06e
7 changed files with 20 additions and 19 deletions
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10
include/linux/syscalls.h
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@@ -51,7 +51,7 @@ struct statx;
struct __sysctl_args;
struct sysinfo;
struct timespec;
struct timeval;
struct __kernel_old_timeval;
struct __kernel_timex;
struct timezone;
struct tms;
@@ -732,7 +732,7 @@ asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
/* kernel/time.c */
asmlinkage long sys_gettimeofday(struct timeval __user *tv,
asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv,
struct timezone __user *tz);
asmlinkage long sys_settimeofday(struct timeval __user *tv,
struct timezone __user *tz);
@@ -1082,9 +1082,9 @@ asmlinkage long sys_time32(old_time32_t __user *tloc);
asmlinkage long sys_utime(char __user *filename,
struct utimbuf __user *times);
asmlinkage long sys_utimes(char __user *filename,
struct timeval __user *utimes);
struct __kernel_old_timeval __user *utimes);
asmlinkage long sys_futimesat(int dfd, const char __user *filename,
struct timeval __user *utimes);
struct __kernel_old_timeval __user *utimes);
#endif
asmlinkage long sys_futimesat_time32(unsigned int dfd,
const char __user *filename,
@@ -1098,7 +1098,7 @@ asmlinkage long sys_getdents(unsigned int fd,
struct linux_dirent __user *dirent,
unsigned int count);
asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
fd_set __user *exp, struct timeval __user *tvp);
fd_set __user *exp, struct __kernel_old_timeval __user *tvp);
asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
int timeout);
asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,