45 lines
733 B
C
45 lines
733 B
C
#include "internal.h"
|
|
#include <linux/unistd.h>
|
|
|
|
#if defined(__GLIBC__)
|
|
#include <sys/kdaemon.h>
|
|
#else
|
|
_syscall2(int, bdflush, int, func, int, data);
|
|
#endif /* __GLIBC__ */
|
|
|
|
extern int
|
|
update_main(int argc, char** argv)
|
|
{
|
|
/*
|
|
* Update is actually two daemons, bdflush and update.
|
|
*/
|
|
int pid;
|
|
|
|
pid = fork();
|
|
if ( pid < 0 )
|
|
return pid;
|
|
else if ( pid == 0 ) {
|
|
/*
|
|
* This is no longer necessary since 1.3.5x, but it will harmlessly
|
|
* exit if that is the case.
|
|
*/
|
|
strcpy(argv[0], "bdflush (update)");
|
|
argv[1] = 0;
|
|
argv[2] = 0;
|
|
bdflush(1, 0);
|
|
_exit(0);
|
|
}
|
|
pid = fork();
|
|
if ( pid < 0 )
|
|
return pid;
|
|
else if ( pid == 0 ) {
|
|
argv[0] = "update";
|
|
for ( ; ; ) {
|
|
sync();
|
|
sleep(30);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|