[PATCH v3] xfstests: Use upstream version of fstrim instead of the local one

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Local version of fstrim was dropped so that we depend on upstream
version which is now available via $FSTRIM_PROG. _require_fstrim was
added to check if fstrim is available in the system and
_test_batched_discard to check if we can run fstrim on certain
mountpoint.

Also tests 251 and 260 were modified to reflect this change.

Signed-off-by: Tomas Racek <tracek@xxxxxxxxxx>
---
 .gitignore    |    1 -
 251           |   14 +--
 260           |   36 +++++----
 260.out       |    8 +-
 common.config |    1 +
 common.rc     |   13 +++
 src/Makefile  |    2 +-
 src/fstrim.c  |  257 ---------------------------------------------------------
 8 files changed, 45 insertions(+), 287 deletions(-)
 delete mode 100644 src/fstrim.c

diff --git a/.gitignore b/.gitignore
index 900ff95..c0e0e4c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -37,7 +37,6 @@ src/fill
 src/fill2
 src/fs_perms
 src/fstest
-src/fstrim
 src/ftrunc
 src/genhashnames
 src/getdevicesize
diff --git a/251 b/251
index f46b6e2..dbb6ba7 100755
--- a/251
+++ b/251
@@ -44,6 +44,7 @@ mypid=$$
 _supported_fs generic
 _supported_os Linux
 _require_scratch
+_require_fstrim
 _scratch_mkfs >/dev/null 2>&1
 _scratch_mount
 
@@ -71,16 +72,11 @@ _fail()
 	kill $mypid 2> /dev/null
 }
 
-_check_fstrim_support()
-{
-	$here/src/fstrim -l 10M $SCRATCH_MNT &> /dev/null
-}
-
 _guess_max_minlen()
 {
 	mmlen=100000
 	while [ $mmlen -gt 1 ]; do
-		$here/src/fstrim -l $(($mmlen*2))k -m ${mmlen}k $SCRATCH_MNT &> /dev/null && break
+		$FSTRIM_PROG -l $(($mmlen*2))k -m ${mmlen}k $SCRATCH_MNT &> /dev/null && break
 		mmlen=$(($mmlen/2))
 	done
 	echo $mmlen
@@ -102,12 +98,12 @@ fstrim_loop()
 		minlen=$(((RANDOM*($RANDOM%2+1))%$mmlen))
 		start=$RANDOM
 		if [ $((RANDOM%10)) -gt 7 ]; then
-			$here/src/fstrim $SCRATCH_MNT &
+			$FSTRIM_PROG $SCRATCH_MNT &
 			fpid=$!
 			wait $fpid
 		fi
 		while [ $start -lt $fsize ] ; do
-			$here/src/fstrim -m ${minlen}k -s ${start}k -l ${step}k $SCRATCH_MNT &
+			$FSTRIM_PROG -m ${minlen}k -o ${start}k -l ${step}k $SCRATCH_MNT &
 			fpid=$!
 			wait $fpid
 			start=$(( $start + $step ))
@@ -157,7 +153,7 @@ content=$here
 
 # Check for FITRIM support
 echo -n "Checking FITRIM support: "
-_check_fstrim_support || _notrun "FSTRIM is not supported"
+_test_batched_discard $SCRATCH_MNT || _notrun "FITRIM not supported on $SCRATCH_DEV"
 echo "done."
 
 mkdir -p $tmp
diff --git a/260 b/260
index b005cd3..21aa866 100755
--- a/260
+++ b/260
@@ -41,13 +41,13 @@ mypid=$$
 _supported_fs generic
 _supported_os Linux
 _require_math
+_require_fstrim
 
 _require_scratch
 _scratch_mkfs >/dev/null 2>&1
 _scratch_mount
 
-FSTRIM="$here/src/fstrim"
-"$FSTRIM" -l 10M $SCRATCH_MNT &> /dev/null || _notrun "FSTRIM is not supported"
+_test_batched_discard $SCRATCH_MNT || _notrun "FITRIM not supported on $SCRATCH_DEV"
 
 fssize=$(df -k | grep "$SCRATCH_MNT" | grep "$SCRATCH_DEV"  | awk '{print $2}')
 
@@ -59,20 +59,24 @@ max_64bit=$(_math "2^64 - 1")
 # the file system
 
 echo "[+] Start beyond the end of fs (should fail)"
-"$FSTRIM" -s $beyond_eofs $SCRATCH_MNT
+out=$($FSTRIM_PROG -o $beyond_eofs $SCRATCH_MNT 2>&1)
 [ $? -eq 0 ] && status=1
+echo -n $out | cut -d ":" -f3-
 
 echo "[+] Start beyond the end of fs with len set (should fail)"
-"$FSTRIM" -s $beyond_eofs -l1M $SCRATCH_MNT
+out=$($FSTRIM_PROG -o $beyond_eofs -l1M $SCRATCH_MNT 2>&1)
 [ $? -eq 0 ] && status=1
+echo -n $out | cut -d ":" -f3-
 
 echo "[+] Start = 2^64-1 (should fail)"
-"$FSTRIM" -s $max_64bit $SCRATCH_MNT
+out=$($FSTRIM_PROG -o $max_64bit $SCRATCH_MNT 2>&1)
 [ $? -eq 0 ] && status=1
+echo -n $out | cut -d ":" -f3-
 
 echo "[+] Start = 2^64-1 and len is set (should fail)"
-"$FSTRIM" -s $max_64bit -l1M $SCRATCH_MNT
+out=$($FSTRIM_PROG -o $max_64bit -l1M $SCRATCH_MNT 2>&1)
 [ $? -eq 0 ] && status=1
+echo -n $out | cut -d ":" -f3-
 
 _scratch_unmount
 _scratch_mkfs >/dev/null 2>&1
@@ -82,16 +86,16 @@ _scratch_mount
 # since the length should be truncated
 
 echo "[+] Default length (should succeed)"
-"$FSTRIM" $SCRATCH_MNT
+$FSTRIM_PROG $SCRATCH_MNT
 [ $? -ne 0 ] && status=1
 echo "[+] Default length with start set (should succeed)"
-"$FSTRIM" -s10M $SCRATCH_MNT
+$FSTRIM_PROG -o10M $SCRATCH_MNT
 [ $? -ne 0 ] && status=1
 echo "[+] Length beyond the end of fs (should succeed)"
-"$FSTRIM" -l $beyond_eofs $SCRATCH_MNT
+$FSTRIM_PROG -l $beyond_eofs $SCRATCH_MNT
 [ $? -ne 0 ] && status=1
 echo "[+] Length beyond the end of fs with start set (should succeed)"
-"$FSTRIM" -s10M -l $beyond_eofs $SCRATCH_MNT
+$FSTRIM_PROG -o10M -l $beyond_eofs $SCRATCH_MNT
 [ $? -ne 0 ] && status=1
 
 _scratch_unmount
@@ -101,8 +105,9 @@ _scratch_mount
 # This is a bit fuzzy, but since the file system is fresh
 # there should be at least (fssize/2) free space to trim.
 # This is supposed to catch wrong FITRIM argument handling
-out=$("$FSTRIM" -v -s10M $SCRATCH_MNT)
-bytes=${out%% *}
+out=$($FSTRIM_PROG -v -o10M $SCRATCH_MNT)
+nopref=${out##*: }
+bytes=${nopref%% *}
 
 if [ $bytes -gt $(_math "$fssize*1024") ]; then
 	status=1
@@ -155,7 +160,7 @@ _scratch_unmount
 _scratch_mkfs >/dev/null 2>&1
 _scratch_mount
 # It should fail since $start is beyond the end of file system
-"$FSTRIM" -s$start -l10M $SCRATCH_MNT &> /dev/null
+$FSTRIM_PROG -o$start -l10M $SCRATCH_MNT &> /dev/null
 if [ $? -eq 0 ]; then
 	status=1
 	echo "It seems that fs logic handling start"\
@@ -173,8 +178,9 @@ _scratch_mount
 # It is because btrfs does not have not-yet-used parts of the device
 # mapped and since we got here right after the mkfs, there is not
 # enough free extents in the root tree.
-out=$("$FSTRIM" -v -l$len $SCRATCH_MNT)
-bytes=${out%% *}
+out=$($FSTRIM_PROG -v -l$len $SCRATCH_MNT)
+nopref=${out##*: }
+bytes=${nopref%% *}
 if [ $bytes -le $(_math "$fssize*512") ] && [ $FSTYP != "btrfs" ]; then
 	status=1
 	echo "It seems that fs logic handling len argument overflows"
diff --git a/260.out b/260.out
index 199320a..cf0b14e 100644
--- a/260.out
+++ b/260.out
@@ -1,12 +1,12 @@
 QA output created by 260
 [+] Start beyond the end of fs (should fail)
-fstrim: FSTRIM: Invalid argument
+ FITRIM ioctl failed: Invalid argument
 [+] Start beyond the end of fs with len set (should fail)
-fstrim: FSTRIM: Invalid argument
+ FITRIM ioctl failed: Invalid argument
 [+] Start = 2^64-1 (should fail)
-fstrim: FSTRIM: Invalid argument
+ FITRIM ioctl failed: Invalid argument
 [+] Start = 2^64-1 and len is set (should fail)
-fstrim: FSTRIM: Invalid argument
+ FITRIM ioctl failed: Invalid argument
 [+] Default length (should succeed)
 [+] Default length with start set (should succeed)
 [+] Length beyond the end of fs (should succeed)
diff --git a/common.config b/common.config
index 7bed1c5..57f505d 100644
--- a/common.config
+++ b/common.config
@@ -158,6 +158,7 @@ export XFS_QUOTA_PROG="`set_prog_path xfs_quota`"
 export KILLALL_PROG="`set_prog_path killall`"
 export INDENT_PROG="`set_prog_path indent`"
 export XFS_COPY_PROG="`set_prog_path xfs_copy`"
+export FSTRIM_PROG="`set_prog_path fstrim`"
 
 # Generate a comparable xfsprogs version number in the form of
 # major * 10000 + minor * 100 + release
diff --git a/common.rc b/common.rc
index 602513a..0d2f712 100644
--- a/common.rc
+++ b/common.rc
@@ -1778,6 +1778,19 @@ _devmgt_add()
 	echo ${tdl} >  /sys/class/scsi_host/host${h}/scan || _fail "Add disk failed"
 }
 
+_require_fstrim()
+{
+	if [ -z "$FSTRIM_PROG" ]; then
+		_notrun "This test requires fstrim utility."
+	fi
+}
+
+_test_batched_discard()
+{
+	_require_fstrim
+	$FSTRIM_PROG ${1} &>/dev/null
+}
+
 ################################################################################
 
 if [ "$iam" != new -a "$iam" != bench ]
diff --git a/src/Makefile b/src/Makefile
index 67250ee..9671a38 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -17,7 +17,7 @@ LINUX_TARGETS = xfsctl bstat t_mtab getdevicesize preallo_rw_pattern_reader \
 	preallo_rw_pattern_writer ftrunc trunc fs_perms testx looptest \
 	locktest unwritten_mmap bulkstat_unlink_test t_stripealign \
 	bulkstat_unlink_test_modified t_dir_offset t_futimens t_immutable \
-	stale_handle pwrite_mmap_blocked fstrim t_dir_offset2
+	stale_handle pwrite_mmap_blocked t_dir_offset2
 
 SUBDIRS =
 
diff --git a/src/fstrim.c b/src/fstrim.c
deleted file mode 100644
index e23bcb3..0000000
--- a/src/fstrim.c
+++ /dev/null
@@ -1,257 +0,0 @@
-/*
- * fstrim.c -- discard the part (or whole) of mounted filesystem.
- *
- * Copyright (C) 2010 Red Hat, Inc., Lukas Czerner <lczerner@xxxxxxxxxx>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- * This program uses FITRIM ioctl to discard parts or the whole filesystem
- * online (mounted). You can specify range (start and lenght) to be
- * discarded, or simply discard while filesystem.
- *
- * Usage: fstrim [options] <mount point>
- */
-
-#include <string.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <stdarg.h>
-#include <getopt.h>
-
-#include <sys/ioctl.h>
-#include <sys/stat.h>
-#include <linux/fs.h>
-
-#ifndef FITRIM
-struct fstrim_range {
-	uint64_t start;
-	uint64_t len;
-	uint64_t minlen;
-};
-#define FITRIM		_IOWR('X', 121, struct fstrim_range)
-#endif
-
-const char *program_name = "fstrim";
-
-struct options {
-	struct fstrim_range *range;
-	char mpoint[PATH_MAX];
-	char verbose;
-};
-
-static void usage(void)
-{
-	fprintf(stderr,
-		"Usage: %s [-s start] [-l length] [-m minimum-extent]"
-		" [-v] {mountpoint}\n\t"
-		"-s Starting Byte to discard from\n\t"
-		"-l Number of Bytes to discard from the start\n\t"
-		"-m Minimum extent length to discard\n\t"
-		"-v Verbose - number of discarded bytes\n",
-		program_name);
-}
-
-static void err_exit(const char *fmt, ...)
-{
-	va_list pvar;
-	va_start(pvar, fmt);
-	vfprintf(stderr, fmt, pvar);
-	va_end(pvar);
-	usage();
-	exit(EXIT_FAILURE);
-}
-
-/**
- * Get the number from argument. It can be number followed by
- * units: k|K, m|M, g|G, t|T
- */
-static unsigned long long get_number(char **optarg)
-{
-	char *opt, *end;
-	unsigned long long number, max;
-
-	/* get the max to avoid overflow */
-	max = ULLONG_MAX / 1024;
-	number = 0;
-	opt = *optarg;
-
-	if (*opt == '-') {
-		err_exit("%s: %s (%s)\n", program_name,
-			 strerror(ERANGE), *optarg);
-	}
-
-	errno = 0;
-	number = strtoull(opt, &end , 0);
-	if (errno)
-		err_exit("%s: %s (%s)\n", program_name,
-			 strerror(errno), *optarg);
-
-	/*
-	 * Convert units to numbers. Fall-through stack is used for units
-	 * so absence of breaks is intentional.
-	 */
-	switch (*end) {
-	case 'T': /* terabytes */
-	case 't':
-		if (number > max)
-			err_exit("%s: %s (%s)\n", program_name,
-				 strerror(ERANGE), *optarg);
-		number *= 1024;
-	case 'G': /* gigabytes */
-	case 'g':
-		if (number > max)
-			err_exit("%s: %s (%s)\n", program_name,
-				 strerror(ERANGE), *optarg);
-		number *= 1024;
-	case 'M': /* megabytes */
-	case 'm':
-		if (number > max)
-			err_exit("%s: %s (%s)\n", program_name,
-				 strerror(ERANGE), *optarg);
-		number *= 1024;
-	case 'K': /* kilobytes */
-	case 'k':
-		if (number > max)
-			err_exit("%s: %s (%s)\n", program_name,
-				 strerror(ERANGE), *optarg);
-		number *= 1024;
-		end++;
-	case '\0': /* end of the string */
-		break;
-	default:
-		err_exit("%s: %s (%s)\n", program_name,
-			 strerror(EINVAL), *optarg);
-		return 0;
-	}
-
-	if (*end != '\0') {
-		err_exit("%s: %s (%s)\n", program_name,
-			 strerror(EINVAL), *optarg);
-	}
-
-	return number;
-}
-
-static int parse_opts(int argc, char **argv, struct options *opts)
-{
-	int c;
-
-	while ((c = getopt(argc, argv, "s:l:m:v")) != EOF) {
-		switch (c) {
-		case 's': /* starting point */
-			opts->range->start = get_number(&optarg);
-			break;
-		case 'l': /* length */
-			opts->range->len = get_number(&optarg);
-			break;
-		case 'm': /* minlen */
-			opts->range->minlen = get_number(&optarg);
-			break;
-		case 'v': /* verbose */
-			opts->verbose = 1;
-			break;
-		default:
-			return EXIT_FAILURE;
-		}
-	}
-
-	return 0;
-}
-
-int main(int argc, char **argv)
-{
-	struct options *opts;
-	struct stat sb;
-	int fd, err = 0, ret = EXIT_FAILURE;
-
-	opts = malloc(sizeof(struct options));
-	if (!opts)
-		err_exit("%s: malloc(): %s\n", program_name, strerror(errno));
-
-	opts->range = NULL;
-	opts->verbose = 0;
-
-	if (argc > 1)
-		strncpy(opts->mpoint, argv[argc - 1], sizeof(opts->mpoint));
-
-	opts->range = calloc(1, sizeof(struct fstrim_range));
-	if (!opts->range) {
-		fprintf(stderr, "%s: calloc(): %s\n", program_name,
-			strerror(errno));
-		goto free_opts;
-	}
-
-	opts->range->len = ULLONG_MAX;
-
-	if (argc > 2)
-		err = parse_opts(argc, argv, opts);
-
-	if (err) {
-		usage();
-		goto free_opts;
-	}
-
-	if (strnlen(opts->mpoint, 1) < 1) {
-		fprintf(stderr, "%s: You have to specify mount point.\n",
-			program_name);
-		usage();
-		goto free_opts;
-	}
-
-	if (stat(opts->mpoint, &sb) == -1) {
-		fprintf(stderr, "%s: %s: %s\n", program_name,
-			opts->mpoint, strerror(errno));
-		usage();
-		goto free_opts;
-	}
-
-	if (!S_ISDIR(sb.st_mode)) {
-		fprintf(stderr, "%s: %s: (%s)\n", program_name,
-			opts->mpoint, strerror(ENOTDIR));
-		usage();
-		goto free_opts;
-	}
-
-	fd = open(opts->mpoint, O_RDONLY);
-	if (fd < 0) {
-		fprintf(stderr, "%s: open(%s): %s\n", program_name,
-			opts->mpoint, strerror(errno));
-		goto free_opts;
-	}
-
-	if (ioctl(fd, FITRIM, opts->range)) {
-		fprintf(stderr, "%s: FSTRIM: %s\n", program_name,
-			strerror(errno));
-		goto free_opts;
-	}
-
-	if ((opts->verbose) && (opts->range))
-		fprintf(stdout, "%llu Bytes were trimmed\n", (unsigned long long)opts->range->len);
-
-	ret = EXIT_SUCCESS;
-
-free_opts:
-	if (opts) {
-		if (opts->range)
-			free(opts->range);
-		free(opts);
-	}
-
-	return ret;
-}
-- 
1.7.7.6

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