Commit 4f9fbd89 authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

y2038: rename itimerval to __kernel_old_itimerval 



Take the renaming of timeval and timespec one level further,
also renaming itimerval to __kernel_old_itimerval, to avoid
namespace conflicts with the user-space structure that may
use 64-bit time_t members.

Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 751addac

include/linux/syscalls.h

+4 −5
Original line number Diff line number Diff line
@@ -16,8 +16,7 @@ struct inode; 
struct iocb;

struct io_event;

struct iovec;

struct itimerspec;

struct itimerval;

struct __kernel_old_itimerval;

struct kexec_segment;

struct linux_dirent;

struct linux_dirent64;
@@ -591,10 +590,10 @@ asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp, 
				     struct old_timespec32 __user *rmtp);



/* kernel/itimer.c */

asmlinkage long sys_getitimer(int which, struct itimerval __user *value);

asmlinkage long sys_getitimer(int which, struct __kernel_old_itimerval __user *value);

asmlinkage long sys_setitimer(int which,

				struct itimerval __user *value,

				struct itimerval __user *ovalue);

				struct __kernel_old_itimerval __user *value,

				struct __kernel_old_itimerval __user *ovalue);



/* kernel/kexec.c */

asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,

include/uapi/linux/time_types.h

+5 −0
Original line number Diff line number Diff line
@@ -33,6 +33,11 @@ struct __kernel_old_timespec { 
	long			tv_nsec;	/* nanoseconds */

};



struct __kernel_old_itimerval {

	struct __kernel_old_timeval it_interval;/* timer interval */

	struct __kernel_old_timeval it_value;	/* current value */

};



struct __kernel_sock_timeval {

	__s64 tv_sec;

	__s64 tv_usec;

kernel/time/itimer.c

+9 −9
Original line number Diff line number Diff line
@@ -97,20 +97,20 @@ static int do_getitimer(int which, struct itimerspec64 *value) 
	return 0;

}



static int put_itimerval(struct itimerval __user *o,

static int put_itimerval(struct __kernel_old_itimerval __user *o,

			 const struct itimerspec64 *i)

{

	struct itimerval v;

	struct __kernel_old_itimerval v;



	v.it_interval.tv_sec = i->it_interval.tv_sec;

	v.it_interval.tv_usec = i->it_interval.tv_nsec / NSEC_PER_USEC;

	v.it_value.tv_sec = i->it_value.tv_sec;

	v.it_value.tv_usec = i->it_value.tv_nsec / NSEC_PER_USEC;

	return copy_to_user(o, &v, sizeof(struct itimerval)) ? -EFAULT : 0;

	return copy_to_user(o, &v, sizeof(struct __kernel_old_itimerval)) ? -EFAULT : 0;

}





SYSCALL_DEFINE2(getitimer, int, which, struct itimerval __user *, value)

SYSCALL_DEFINE2(getitimer, int, which, struct __kernel_old_itimerval __user *, value)

{

	struct itimerspec64 get_buffer;

	int error = do_getitimer(which, &get_buffer);
@@ -314,11 +314,11 @@ SYSCALL_DEFINE1(alarm, unsigned int, seconds) 


#endif



static int get_itimerval(struct itimerspec64 *o, const struct itimerval __user *i)

static int get_itimerval(struct itimerspec64 *o, const struct __kernel_old_itimerval __user *i)

{

	struct itimerval v;

	struct __kernel_old_itimerval v;



	if (copy_from_user(&v, i, sizeof(struct itimerval)))

	if (copy_from_user(&v, i, sizeof(struct __kernel_old_itimerval)))

		return -EFAULT;



	/* Validate the timevals in value. */
@@ -333,8 +333,8 @@ static int get_itimerval(struct itimerspec64 *o, const struct itimerval __user * 
	return 0;

}



SYSCALL_DEFINE3(setitimer, int, which, struct itimerval __user *, value,

		struct itimerval __user *, ovalue)

SYSCALL_DEFINE3(setitimer, int, which, struct __kernel_old_itimerval __user *, value,

		struct __kernel_old_itimerval __user *, ovalue)

{

	struct itimerspec64 set_buffer, get_buffer;

	int error;

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