_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 $2}')
# the file system
echo "[+] Start beyond the end of fs (should fail)"
-"$FSTRIM" -s $beyond_eofs $SCRATCH_MNT
+out=$($FSTRIM_PROG -o $beyond_eofs $SCRATCH_MNT 2>&1)
[ $? -eq 0 ] && status=1
+echo $out | _filter_scratch
echo "[+] Start beyond the end of fs with len set (should fail)"
-"$FSTRIM" -s $beyond_eofs -l1M $SCRATCH_MNT
+out=$($FSTRIM_PROG -o $beyond_eofs -l1M $SCRATCH_MNT 2>&1)
[ $? -eq 0 ] && status=1
+echo $out | _filter_scratch
echo "[+] Start = 2^64-1 (should fail)"
-"$FSTRIM" -s $max_64bit $SCRATCH_MNT
+out=$($FSTRIM_PROG -o $max_64bit $SCRATCH_MNT 2>&1)
[ $? -eq 0 ] && status=1
+echo $out | _filter_scratch
echo "[+] Start = 2^64-1 and len is set (should fail)"
-"$FSTRIM" -s $max_64bit -l1M $SCRATCH_MNT
+out=$($FSTRIM_PROG -o $max_64bit -l1M $SCRATCH_MNT 2>&1)
[ $? -eq 0 ] && status=1
+echo $out | _filter_scratch
_scratch_unmount
_scratch_mkfs >/dev/null 2>&1
# since the length should be truncated
echo "[+] Default length (should succeed)"
-"$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
[ $? -ne 0 ] && status=1
_scratch_unmount
# This is a bit fuzzy, but since the file system is fresh
# there should be at least (fssize/2) free space to trim.
# This is supposed to catch wrong FITRIM argument handling
-out=$("$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
_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 [ $? -eq 0 ]; then
status=1
echo "It seems that fs logic handling start"\
# It is because btrfs does not have not-yet-used parts of the device
# mapped and since we got here right after the mkfs, there is not
# enough free extents in the root tree.
-out=$("$FSTRIM" -v -l$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"
+++ /dev/null
-/*
- * fstrim.c -- discard the part (or whole) of mounted filesystem.
- *
- * Copyright (C) 2010 Red Hat, Inc., Lukas Czerner <lczerner@redhat.com>
- *
- * 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;
-}
projects / xfstests-dev.git / commitdiff