xref: /titanic_52/usr/src/cmd/arcflush/arcflush.c (revision 21b926adb26b0bf23fe75045ed308af582303bd0)

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/param.h>

int g_arcfl;

void
flush_one(const char *ds)
{
	int ret;
	char name[MAXPATHLEN + 1];

	strcpy(name, ds);

	ret = ioctl(g_arcfl, 0xf10053, name);
	if (ret == -1) {
		printf("ioctl to arcflush device failed with %d=%s\n",
			errno, strerror(errno));
		exit(1);
	}
}

void
purge_one(const char *mntpnt)
{
	int ret;
	char name[MAXPATHLEN + 1];

	strcpy(name, mntpnt);

	ret = ioctl(g_arcfl, 0xf10054, name);
	if (ret == -1) {
		printf("ioctl to dnlc purge failed with %d=%s\n",
			errno, strerror(errno));
		exit(1);
	}
}

int
main(int argc, char **argv)
{
	if (argc != 3) {
		printf("usage: arcflush <dataset> <mountpoint>\n");
		exit(1);
	}

	g_arcfl = open("/devices/pseudo/arcflush@0:arcflush", O_RDWR);
	if (g_arcfl == -1) {
		printf("failed to open arcflush device: %s\n",
			strerror(errno));
		exit(1);
	}
	flush_one(argv[1]);
	purge_one(argv[2]);

	close(g_arcfl);

	return (0);
}