diff -uNr stress-kernel/fs/Makefile stress-kernel-truncate/fs/Makefile
--- fs/Makefile Thu Nov 30 17:57:54 2000
+++ fs.foo/Makefile Wed Nov 14 11:47:55 2001
@@ -1,7 +1,10 @@
holey: holey.c
gcc -o holey holey.c
-all: holey
+truncate: truncate.c
+ gcc -o truncate truncate.c
+
+all: holey truncate
clean:
- rm holey
+ rm holey truncate
diff -uNr stress-kernel/fs/truncate.c stress-kernel-truncate/fs/truncate.c
--- fs/truncate.c Wed Dec 31 19:00:00 1969
+++ fs.foo/truncate.c Wed Nov 14 11:47:14 2001
@@ -0,0 +1,45 @@
+/*******************************************
+ Truncate a given file to a specified length
+
+ Usage:
+ truncate <file_name> <length>
+
+********************************************/
+
+#include <stdio.h>
+#include <fcntl.h>
+
+
+main (int argc, char * argv [])
+{
+ int fd;
+ off_t pos;
+ char buf [100];
+
+ if (argc != 3) {
+ printf ("Usage: %s [file_name] [length]\n", argv [0]);
+ exit (0);
+ }
+
+ // open existing, or CREATE not existing file
+ if ((fd = open (argv[1], O_RDWR | O_CREAT, 0644)) == -1) {
+ perror ("open failed : ");
+ return 1;
+ }
+
+ pos = (off_t)strtoll( argv [2], NULL, 0);
+
+ if (ftruncate(fd, (off_t)pos) != 0){
+ perror ("truncate failed : ");
+ return 1;
+ }
+
+ /*
+ printf ("Write - ok\n");
+ printf ("%d\n", strlen (argv [3]));
+ */
+
+ printf ("Truncate OK: file: %s tail-byte : % i\n", argv [1], pos);
+ close (fd);
+
+}
diff -uNr drivers/fs-test-driver.sh drivers.foo/fs-test-driver.sh
--- drivers/fs-test-driver.sh Wed May 2 14:50:28 2001
+++ drivers.foo/fs-test-driver.sh Wed Nov 14 12:01:36 2001
@@ -128,6 +128,27 @@
rm -rf $EX_FILE_SMALL $EX_FILE_BIG $TEMP_DIR/EXORCIST >> /dev/null 2>&1
+
+# Han's Reisers truncate test, modified to loop from file size down to zero.
+
+TRUNCATE_FILE=$TEMP_DIR/truncate-$$
+TRUNCATE_SIZE=2097152 # == 2MB
+
+dd if=/dev/urandom of="$TRUNCATE_FILE" bs=1024 count=2048 >> /dev/null
+[ $? = 0 ] || { echo "Error: can not create $FTRUNCATE_FILE for ftruncate test." ; exit -1 ; }
+
+$FS_TEST_HOME_DIR/truncate $TRUNCATE_FILE $TRUNCATE_SIZE &
+
+TRUNCATE_PID=$!
+trap "kill -9 $TRUNCATE_PID ; rm -f $TRUNCATE_FILE" SIGINT SIGTERM SIGHUP
+
+wait
+
+[ $? = 0 ] || { echo "Truncate test returned $?" ; exit -1 ; }
+
+rm -f $TRUNCATE_FILE >> /dev/null
+[ $? = 0 ] || { echo "Can't remove $TRUNCATE_FILE." ; exit -1 ; }
+
exit 0
