linux-master/kernel/sysctl.c

427 static int do_proc_dointvec_conv(bool *negp, unsigned long *lvalp,
433 			if (*lvalp > (unsigned long) INT_MAX + 1)
435 			WRITE_ONCE(*valp, -*lvalp);
437 			if (*lvalp > (unsigned long) INT_MAX)
439 			WRITE_ONCE(*valp, *lvalp);
445 			*lvalp = -(unsigned long)val;
448 			*lvalp = (unsigned long)val;
454 static int do_proc_douintvec_conv(unsigned long *lvalp,
459 		if (*lvalp > UINT_MAX)
461 		WRITE_ONCE(*valp, *lvalp);
464 		*lvalp = (unsigned long)val;
474 		  int (*conv)(bool *negp, unsigned long *lvalp, int *valp,
546 		  int (*conv)(bool *negp, unsigned long *lvalp, int *valp,
558 			       int (*conv)(unsigned long *lvalp,
613 			       int (*conv)(unsigned long *lvalp,
645 			       int (*conv)(unsigned long *lvalp,
680 		      int (*conv)(unsigned long *lvalp,
825 static int do_proc_dointvec_minmax_conv(bool *negp, unsigned long *lvalp,
837 	ret = do_proc_dointvec_conv(negp, lvalp, ip, write, data);
892 static int do_proc_douintvec_minmax_conv(unsigned long *lvalp,
902 	ret = do_proc_douintvec_conv(lvalp, up, write, data);
1154 static int do_proc_dointvec_jiffies_conv(bool *negp, unsigned long *lvalp,
1159 		if (*lvalp > INT_MAX / HZ)
1162 			WRITE_ONCE(*valp, -*lvalp * HZ);
1164 			WRITE_ONCE(*valp, *lvalp * HZ);
1175 		*lvalp = lval / HZ;
1180 static int do_proc_dointvec_userhz_jiffies_conv(bool *negp, unsigned long *lvalp,
1185 		if (USER_HZ < HZ && *lvalp > (LONG_MAX / HZ) * USER_HZ)
1187 		*valp = clock_t_to_jiffies(*negp ? -*lvalp : *lvalp);
1198 		*lvalp = jiffies_to_clock_t(lval);
1203 static int do_proc_dointvec_ms_jiffies_conv(bool *negp, unsigned long *lvalp,
1208 		unsigned long jif = msecs_to_jiffies(*negp ? -*lvalp : *lvalp);
1223 		*lvalp = jiffies_to_msecs(lval);
1228 static int do_proc_dointvec_ms_jiffies_minmax_conv(bool *negp, unsigned long *lvalp,
1239 	ret = do_proc_dointvec_ms_jiffies_conv(negp, lvalp, ip, write, data);