1 files changed, 0 insertions, 240 deletions
diff --git a/tools/testing/selftests/vm/write_to_hugetlbfs.c b/tools/testing/selftests/vm/write_to_hugetlbfs.c
deleted file mode 100644
index 6a2caba19ee1..000000000000
--- a/tools/testing/selftests/vm/write_to_hugetlbfs.c
+++ /dev/null
@@ -1,240 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * This program reserves and uses hugetlb memory, supporting a bunch of
- * scenarios needed by the charged_reserved_hugetlb.sh test.
- */
-
-#include <err.h>
-#include <errno.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/shm.h>
-#include <sys/stat.h>
-#include <sys/mman.h>
-
-/* Global definitions. */
-enum method {
-	HUGETLBFS,
-	MMAP_MAP_HUGETLB,
-	SHM,
-	MAX_METHOD
-};
-
-
-/* Global variables. */
-static const char *self;
-static char *shmaddr;
-static int shmid;
-
-/*
- * Show usage and exit.
- */
-static void exit_usage(void)
-{
-	printf("Usage: %s -p <path to hugetlbfs file> -s <size to map> "
-	       "[-m <0=hugetlbfs | 1=mmap(MAP_HUGETLB)>] [-l] [-r] "
-	       "[-o] [-w] [-n]\n",
-	       self);
-	exit(EXIT_FAILURE);
-}
-
-void sig_handler(int signo)
-{
-	printf("Received %d.\n", signo);
-	if (signo == SIGINT) {
-		printf("Deleting the memory\n");
-		if (shmdt((const void *)shmaddr) != 0) {
-			perror("Detach failure");
-			shmctl(shmid, IPC_RMID, NULL);
-			exit(4);
-		}
-
-		shmctl(shmid, IPC_RMID, NULL);
-		printf("Done deleting the memory\n");
-	}
-	exit(2);
-}
-
-int main(int argc, char **argv)
-{
-	int fd = 0;
-	int key = 0;
-	int *ptr = NULL;
-	int c = 0;
-	int size = 0;
-	char path[256] = "";
-	enum method method = MAX_METHOD;
-	int want_sleep = 0, private = 0;
-	int populate = 0;
-	int write = 0;
-	int reserve = 1;
-
-	if (signal(SIGINT, sig_handler) == SIG_ERR)
-		err(1, "\ncan't catch SIGINT\n");
-
-	/* Parse command-line arguments. */
-	setvbuf(stdout, NULL, _IONBF, 0);
-	self = argv[0];
-
-	while ((c = getopt(argc, argv, "s:p:m:owlrn")) != -1) {
-		switch (c) {
-		case 's':
-			size = atoi(optarg);
-			break;
-		case 'p':
-			strncpy(path, optarg, sizeof(path));
-			break;
-		case 'm':
-			if (atoi(optarg) >= MAX_METHOD) {
-				errno = EINVAL;
-				perror("Invalid -m.");
-				exit_usage();
-			}
-			method = atoi(optarg);
-			break;
-		case 'o':
-			populate = 1;
-			break;
-		case 'w':
-			write = 1;
-			break;
-		case 'l':
-			want_sleep = 1;
-			break;
-		case 'r':
-		    private
-			= 1;
-			break;
-		case 'n':
-			reserve = 0;
-			break;
-		default:
-			errno = EINVAL;
-			perror("Invalid arg");
-			exit_usage();
-		}
-	}
-
-	if (strncmp(path, "", sizeof(path)) != 0) {
-		printf("Writing to this path: %s\n", path);
-	} else {
-		errno = EINVAL;
-		perror("path not found");
-		exit_usage();
-	}
-
-	if (size != 0) {
-		printf("Writing this size: %d\n", size);
-	} else {
-		errno = EINVAL;
-		perror("size not found");
-		exit_usage();
-	}
-
-	if (!populate)
-		printf("Not populating.\n");
-	else
-		printf("Populating.\n");
-
-	if (!write)
-		printf("Not writing to memory.\n");
-
-	if (method == MAX_METHOD) {
-		errno = EINVAL;
-		perror("-m Invalid");
-		exit_usage();
-	} else
-		printf("Using method=%d\n", method);
-
-	if (!private)
-		printf("Shared mapping.\n");
-	else
-		printf("Private mapping.\n");
-
-	if (!reserve)
-		printf("NO_RESERVE mapping.\n");
-	else
-		printf("RESERVE mapping.\n");
-
-	switch (method) {
-	case HUGETLBFS:
-		printf("Allocating using HUGETLBFS.\n");
-		fd = open(path, O_CREAT | O_RDWR, 0777);
-		if (fd == -1)
-			err(1, "Failed to open file.");
-
-		ptr = mmap(NULL, size, PROT_READ | PROT_WRITE,
-			   (private ? MAP_PRIVATE : MAP_SHARED) |
-				   (populate ? MAP_POPULATE : 0) |
-				   (reserve ? 0 : MAP_NORESERVE),
-			   fd, 0);
-
-		if (ptr == MAP_FAILED) {
-			close(fd);
-			err(1, "Error mapping the file");
-		}
-		break;
-	case MMAP_MAP_HUGETLB:
-		printf("Allocating using MAP_HUGETLB.\n");
-		ptr = mmap(NULL, size, PROT_READ | PROT_WRITE,
-			   (private ? (MAP_PRIVATE | MAP_ANONYMOUS) :
-				      MAP_SHARED) |
-				   MAP_HUGETLB | (populate ? MAP_POPULATE : 0) |
-				   (reserve ? 0 : MAP_NORESERVE),
-			   -1, 0);
-
-		if (ptr == MAP_FAILED)
-			err(1, "mmap");
-
-		printf("Returned address is %p\n", ptr);
-		break;
-	case SHM:
-		printf("Allocating using SHM.\n");
-		shmid = shmget(key, size,
-			       SHM_HUGETLB | IPC_CREAT | SHM_R | SHM_W);
-		if (shmid < 0) {
-			shmid = shmget(++key, size,
-				       SHM_HUGETLB | IPC_CREAT | SHM_R | SHM_W);
-			if (shmid < 0)
-				err(1, "shmget");
-		}
-		printf("shmid: 0x%x, shmget key:%d\n", shmid, key);
-
-		ptr = shmat(shmid, NULL, 0);
-		if (ptr == (int *)-1) {
-			perror("Shared memory attach failure");
-			shmctl(shmid, IPC_RMID, NULL);
-			exit(2);
-		}
-		printf("shmaddr: %p\n", ptr);
-
-		break;
-	default:
-		errno = EINVAL;
-		err(1, "Invalid method.");
-	}
-
-	if (write) {
-		printf("Writing to memory.\n");
-		memset(ptr, 1, size);
-	}
-
-	if (want_sleep) {
-		/* Signal to caller that we're done. */
-		printf("DONE\n");
-
-		/* Hold memory until external kill signal is delivered. */
-		while (1)
-			sleep(100);
-	}
-
-	if (method == HUGETLBFS)
-		close(fd);
-
-	return 0;
-}