[PATCH v2 2/2] xfstests: introduce 280 for SEEK_DATA/SEEK_HOLE copy check

Jeff Liu
2012-02-06T14:31:33Z

Introduce 280 for SEEK_DATA/SEEK_HOLE copy check.

Signed-off-by: Jie Liu <jeff.liu@oracle.com>

---
280 | 148 ++++++++++
280.out | 1 +
group | 1 +
src/Makefile | 3 +-
src/seek_copy_tester.c | 709 ++++++++++++++++++++++++++++++++++++++++++++++++
5 files changed, 861 insertions(+), 1 deletions(-)
create mode 100755 280
create mode 100644 280.out
create mode 100644 src/seek_copy_tester.c

diff --git a/280 b/280
new file mode 100755
index 0000000..33efaaa
--- /dev/null
+++ b/280
@@ -0,0 +1,148 @@
+#! /bin/bash
+# FS QA Test No. 280
+#
+# SEEK_DATA/SEEK_HOLE tester.
+# Create a sparse file with a couple of holes and data extents.
+# Simulates the copy process to verify SEEK_DATA/SEEK_HOLE stuff works
+# as expected.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2011 Oracle Inc. All Rights Reserved.
+#
+# 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.
+#
+# This program is distributed in the hope that it would 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, write the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+#
+#-----------------------------------------------------------------------
+#
+# creator
+owner=jeff.liu@oracle.com
+
+seq=`basename $0`
+echo "QA output created by $seq"
+
+here=`pwd`
+status=1 # failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+
+# real QA test starts here
+_supported_fs generic
+_supported_os Linux Solaris
+
+src=$TEST_DIR/seek_copy_testfile
+dest=$TEST_DIR/seek_copy_testfile.dest
+
+[ -x $here/src/seek_copy_tester ] || _notrun "seek_copy_tester not built"
+
+_cleanup()
+{
+ rm -f $src $dest
+}
+
+# seek_copy_test_01()
+# create a 100Mytes file in preallocation mode.
+# fallocate offset start from 0.
+# the first data extent offset start from 80991, write 4Kbytes,
+# and then skip 195001 bytes for next write.
+# this is intended to test data buffer lookup for DIRTY pages.
+# verify results:
+# 1. file size is identical.
+# 2. perform cmp(1) to compare SRC and DEST file byte by byte.
+test01()
+{
+ rm -f $src $dest
+
+ $here/src/seek_copy_tester -P -O 0 -L 100m -s 80991 -k 195001 -l 4k $src $dest
+
+ test $(stat --printf "%s" $src) = $(stat --printf "%s" $dest) ||
+ echo "TEST01: file size check failed" >> $seq.out
+
+ cmp $src $dest ||
+ echo "TEST01: file bytes check failed" >> $seq.out
+}
+
+# seek_copy_test_02()
+# create a 100Mytes file in preallocation mode.
+# fallocate offset start from 0.
+# the first data extent offset start from 0, write 16Kbytes,
+# and then skip 8Mbytes for next write.
+# Try flushing DIRTY pages to WRITEBACK mode, this is intended to
+# test data buffer lookup in WRITEBACK pages.
+# verify results:
+# 1. file size is identical.
+# 2. perform cmp(1) to compare SRC and DEST file byte by byte.
+test02()
+{
+ rm -rf $src $dest
+
+ $here/src/seek_copy_tester -S -P -O 0 -L 100m -s 0 -k 8m -l 16k $src $dest
+
+ test $(stat --printf "%s" $src) = $(stat --printf "%s" $dest) ||
+ echo "TEST02: file size check failed" >> $seq.out
+
+ cmp $src $dest ||
+ echo "TEST02: file bytes check failed" >>$seq.out
+}
+
+# seek_copy_test_03
+# create a 100Mytes sparse file.
+# the first data extent offset start from 512, write 4Kbytes,
+# and then skip 1Mbytes for next write.
+# don't make holes at the end of file.
+# verify results:
+# 1. file size is identical.
+# 2. perform cmp(1) to compare SRC and DEST file byte by byte.
+test03()
+{
+ rm -f $src $dest
+
+ $here/src/seek_copy_tester -M 100m -s 512 -k 1m -l 4k $src $dest
+
+ test $(stat --printf "%s" $src) = $(stat --printf "%s" $dest) ||
+ echo "FAIL_TEST03: file size no equal" >> $seq.out
+
+ cmp $src $dest ||
+ echo "FAIL_TEST03: file compare failed" >>$seq.out
+}
+
+# seek_copy_test_04
+# create a 1Gbytes sparse file.
+# the first data extent offset start from 512, write 4Kbytes,
+# and then skip 1Mbytes for next write.
+# make holes at the end of file.
+# verify results:
+# 1. file size is identical.
+# 2. perform cmp(1) to compare SRC and DEST file byte by byte.
+test04()
+{
+ rm -f $src $dest
+
+ $here/src/seek_copy_tester -M 1g -s 512 -k 1m -l 4k -E $src $dest
+
+ test $(stat --printf "%s" $src) = $(stat --printf "%s" $dest) ||
+ echo "FAIL_TEST04: file size no equal" >> $seq.out
+ cmp $src $dest ||
+ echo "FAIL_TEST04: file compare failed" >>$seq.out
+}
+
+echo "QA output created by $seq" >> $seq.out
+test01
+test02
+test03
+test04
+
+status=0
+exit
diff --git a/280.out b/280.out
new file mode 100644
index 0000000..fb29270
--- /dev/null
+++ b/280.out
@@ -0,0 +1 @@
+QA output created by 280
diff --git a/group b/group
index 02c6743..b5a0578 100644
--- a/group
+++ b/group
@@ -390,3 +390,4 @@ deprecated
274 auto rw
275 auto rw
279 auto rw
+280 auto rw
diff --git a/src/Makefile b/src/Makefile
index 6797064..4a24d3c 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -17,7 +17,8 @@ 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 seek_sanity_tester
+ stale_handle pwrite_mmap_blocked fstrim t_dir_offset2 seek_sanity_tester \
+ seek_copy_tester

SUBDIRS =

diff --git a/src/seek_copy_tester.c b/src/seek_copy_tester.c
new file mode 100644
index 0000000..ddf683f
--- /dev/null
+++ b/src/seek_copy_tester.c
@@ -0,0 +1,709 @@
+/*
+ * Copyright (C) 2011 Oracle. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * 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, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+#define _XOPEN_SOURCE 500
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdarg.h>
+#include <string.h>
+#include <getopt.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <errno.h>
+#include <limits.h>
+#include <assert.h>
+#include <linux/falloc.h>
+
+#ifndef SEEK_DATA
+#define SEEK_DATA 3
+#define SEEK_HOLE 4
+#endif
+
+#define BUF_SIZE 4096
+#ifndef MIN
+#define MIN(a,b) ((a)<(b)?(a):(b))
+#endif
+
+/* True if the arithmetic type T is signed, borrowed from Coreutils */
+#define TYPE_SIGNED(t) (! ((t)0 < (t)-1))
+#define TYPE_MAXIMUM(t) \
+ ((t) (! TYPE_SIGNED(t) \
+ ? (t) -1 \
+ : ((((t) 1 << (sizeof(t) * CHAR_BIT - 2)) - 1) * 2 + 1)))
+
+#ifndef OFF_T_MAX
+# define OFF_T_MAX TYPE_MAXIMUM (off_t)
+#endif
+
+static void
+error(const char *fmt, ...)
+{
+ char buf[256];
+ va_list args;
+ va_start(args, fmt);
+ vsprintf(buf, fmt, args);
+ va_end(args);
+
+ fprintf(stderr, "ERROR: [%s:%d] %s\n", __func__, __LINE__, buf);
+}
+
+/* Borrowed from btrfs progs */
+static uint64_t
+parse_size(char *s)
+{
+ int len = strlen(s);
+ char c;
+ uint64_t mult = 1;
+
+ if (!isdigit(s[len - 1])) {
+ c = tolower(s[len - 1]);
+ switch (c) {
+ case 'g':
+ mult <<= 30;
+ break;
+ case 'm':
+ mult <<= 20;
+ break;
+ case 'k':
+ mult <<= 10;
+ break;
+ case 'b':
+ break;
+ default:
+ error("unknown size descriptor %c", c);
+ exit(1);
+ }
+ s[len - 1] = '\0';
+ }
+
+ return atoll(s) * mult;
+}
+
+static size_t
+full_write(int fd, const void *buf, size_t count)
+{
+ size_t total = 0;
+ const char *ptr = (const char *) buf;
+
+ while (count > 0) {
+ ssize_t n = write(fd, ptr, count);
+ if (n < 0) {
+ if (errno == EINTR)
+ continue;
+ error("full_write() failed as %s", strerror(errno));
+ break;
+ }
+
+ if (n == 0) {
+ error("full_write() ZERO bytes transferred");
+ break;
+ }
+
+ total += n;
+ ptr += n;
+ count -= n;
+ }
+
+ return total;
+}
+
+static size_t
+get_block_size(int fd)
+{
+ struct stat st;
+ return (fstat(fd, &st) < 0) ? -1 : st.st_blksize;
+}
+
+/*
+ * Write out of all dirty pages in the specified range which are
+ * not presently submitted write-out.
+ * @offset: the starting byte of the file range to be synchronized.
+ * @nbytes: specifies the length of the range to be synchronized, in bytes;
+ * if nbytes is zero, then all bytes from offset through to the end
+ * of file are synchronized.
+ * @flags: by default, SYNC_FILE_RANGE_WRITE will be used.
+ */
+static int
+writeout_dirty_pages(int fd, off_t offset, off_t nbytes,
+ unsigned int flags)
+{
+ if (sync_file_range(fd, offset, nbytes, flags) < 0) {
+ error("sync file range failed as %s", strerror(errno));
+ return -1;
+ }
+
+ return 0;
+}
+
+static size_t
+full_pwrite(int fd, const void *buf, size_t count, off_t offset)
+{
+ size_t total = 0;
+ size_t written = 0;
+
+ while (written < count) {
+ ssize_t n = pwrite(fd, buf + written, count - written,
+ offset + written);
+ if (n < 0) {
+ error("full_pwrite() failed as %s", strerror(errno));
+ break;
+ }
+
+ if (n == 0) {
+ error("full_pwrite(): ZERO byte transferred");
+ break;
+ }
+
+ written += n;
+ total += n;
+ }
+
+ return total;
+}
+
+/*
+ * Write N_BYTES zero bytes to file descriptor FD.
+ * Return true if successful. Upon write failure, set
+ * errno and return false. Borrowed from cp(1).
+ */
+static int
+write_zeros(int fd, uint64_t n_bytes)
+{
+ static char *zeros;
+ static size_t nz = BUF_SIZE;
+
+ /*
+ * Attempt to use a relatively large calloc'd source buffer for
+ * efficiency, but if that allocation fails, resort to a smaller
+ * statically allocated one.
+ */
+ if (zeros == NULL) {
+ static char fallback[1024];
+ zeros = calloc(nz, 1);
+ if (zeros == NULL) {
+ zeros = fallback;
+ nz = sizeof(fallback);
+ }
+ }
+
+ while (n_bytes) {
+ uint64_t n = MIN(nz, n_bytes);
+ if ((full_write(fd, zeros, n)) != n)
+ return -1;
+ n_bytes -= n;
+ }
+
+ return 0;
+}
+
+/*
+ * Produce a sparse file with data extents and holes.
+ * @len: the maximum length of the produced file.
+ * @start_offset: seek to here first to write data.
+ * @skip_bytes: for the next lseek(2) operation, we need to
+ * skip the number of bytes to create holes.
+ * @data_len: how many bytes for each write(2).
+ */
+static int
+create_data_and_holes(int fd, size_t nr_total_bytes, off_t start_offset,
+ uint64_t nr_skip_bytes, uint64_t nr_data_bytes,
+ int wrote_hole_at_eof)
+{
+ int ret = 0;
+ off_t total = nr_total_bytes;
+ off_t data_len = nr_data_bytes;
+ off_t off = start_offset;
+ char buf[BUF_SIZE];
+
+ memset(buf, 'A', sizeof(buf));
+
+ total -= start_offset;
+ while (total > 0) {
+ do {
+ size_t nr_write = MIN(total, BUF_SIZE);
+ if (full_pwrite(fd, buf, nr_write, off) != nr_write) {
+ error("full_pwrite() failed as %s", strerror(errno));
+ ret = -1;
+ goto out;
+ }
+
+ off += nr_write;
+ data_len -= nr_write;
+ } while (data_len > 0);
+
+ off += (nr_skip_bytes + nr_data_bytes);
+ total -= off;
+ }
+
+ if (off < nr_total_bytes) {
+ if (wrote_hole_at_eof) {
+ ret = ftruncate(fd, nr_total_bytes);
+ if (ret < 0) {
+ error("truncate source file to %lld bytes failed as %s",
+ (long long)nr_total_bytes, strerror(errno));
+ }
+ }
+
+ ret = write_zeros(fd, nr_total_bytes - off);
+ if (ret < 0) {
+ error("write_zeros to end of file failed as %s",
+ strerror(errno));
+ }
+ }
+
+out:
+ return ret;
+}
+
+/*
+ * Copy a data extent from source file to dest file.
+ * @data_off: data offset
+ * @hole_off: hole offset
+ * The length of this extent is (hole_off - data_off).
+ */
+static int
+do_extent_copy(int src_fd, int dest_fd, off_t data_off, off_t hole_off)
+{
+ uint64_t len = (uint64_t)(hole_off - data_off);
+ char buf[BUF_SIZE];
+ int ret;
+
+ /* Seek to data_off for data reading */
+ ret = lseek(src_fd, data_off, SEEK_SET);
+ if (ret < 0) {
+ error("seek source file to %llu failed as %s",
+ (uint64_t)data_off, strerror(errno));
+ return ret;
+ }
+
+ /* Seek to data_off for data writing, make holes as well */
+ ret = lseek(dest_fd, data_off, SEEK_SET);
+ if (ret < 0) {
+ error("seek dest file to %llu failed as %s",
+ (uint64_t)data_off, strerror(errno));
+ return ret;
+ }
+
+ while (len > 0) {
+ memset(buf, 0, sizeof(buf));
+ ssize_t nr_read = read(src_fd, buf, BUF_SIZE);
+ if (nr_read < 0) {
+ if (errno == EINTR)
+ continue;
+ error("read source file extent failed as %s",
+ strerror(errno));
+ ret = -1;
+ break;
+ }
+
+ if (nr_read == 0) {
+ error("do_extent_copy() read reached EOF");
+ break;
+ }
+
+ if (full_write(dest_fd, buf, nr_read) != nr_read) {
+ error("write data to dest file failed as %s",
+ strerror(errno));
+ ret = -1;
+ break;
+ }
+
+ len -= nr_read;
+ }
+
+ return ret;
+}
+
+/*
+ * If lseek(2) failed and the errno is set to ENXIO, for
+ * SEEK_DATA there are no more data regions past the supplied
+ * offset. For SEEK_HOLE, there are no more holes past the
+ * supplied offset. Set scan->hit_final_extent to true for
+ * either case.
+ */
+static int
+copy_extents(int src_fd, int dest_fd, off_t src_total_size)
+{
+ int ret = 0;
+ unsigned int i = 0;
+ off_t seek_start = 0;
+ off_t dest_pos = 0;
+ off_t data_pos, hole_pos;
+
+ do {
+ data_pos = lseek(src_fd, seek_start, SEEK_DATA);
+ if (data_pos < 0) {
+ if (errno == ENXIO)
+ ret = 0;
+ else {
+ error("SEEK_DATA failed due to %s",
+ strerror(errno));
+ ret = -1;
+ }
+ break;
+ }
+
+ hole_pos = lseek(src_fd, data_pos, SEEK_HOLE);
+ if (hole_pos < 0) {
+ if (errno == ENXIO)
+ ret = 0;
+ else {
+ error("SEEK_HOLE failed due to %s\n",
+ strerror(errno));
+ ret = -1;
+ }
+ break;
+ }
+
+ /* do extent copy */
+ ret = do_extent_copy(src_fd, dest_fd, data_pos, hole_pos);
+ if (ret < 0) {
+ error("copy extent failed");
+ break;
+ }
+
+ dest_pos += (hole_pos - data_pos);
+ ++i;
+ seek_start = hole_pos;
+ } while (seek_start < src_total_size);
+
+ if (dest_pos < src_total_size) {
+ ret = ftruncate(dest_fd, src_total_size);
+ if (ret < 0) {
+ error("truncate dest file to %lld bytes failed as %s",
+ (long long)src_total_size, strerror(errno));
+ }
+ }
+
+ return ret;
+}
+
+static struct option const longopts[] = {
+ {"fallocate", no_argument, NULL, 'P'},
+ {"falloc-offset", required_argument, NULL, 'O'},
+ {"falloc-length", required_argument, NULL, 'L'},
+ {"falloc-keep-size", no_argument, NULL, 'N'},
+ {"max-file-size", required_argument, NULL, 'M'},
+ {"write-start-offset", required_argument, NULL, 's'},
+ {"write-skip-bytes", required_argument, NULL, 'k'},
+ {"write-bytes", required_argument, NULL, 'l'},
+ {"sync-dirty-pages", no_argument, NULL, 'S'},
+ {"sync-page-offset", required_argument, NULL, 'p'},
+ {"sync-page-bytes", required_argument, NULL, 'b'},
+ {"sync-page-flags", required_argument, NULL, 'f'},
+ {"wrote-hole-at-eof", no_argument, NULL, 'E'},
+ {NULL, 0, NULL, 0}
+};
+
+static void
+usage(const char *progname)
+{
+ fprintf(stdout, "Usage: %s [OPTION]... SOURCE DEST\n"
+ " [-P] [-O falloc-offset] [-L falloc-length] [-N]\n"
+ " [-M max-file-size]\n"
+ " [-s write-start-offset] [-k write-skip-bytes] [-l write-bytes]\n"
+ " [-S] [-p sync-page-offset] [-b sync-page-bytes] [-f sync-page-flags]\n"
+ " [-E wrote-hole-at-eof]\n"
+ " -L, --falloc-length=LENGTH fallocate length\n"
+ " -O, --falloc-offset=OFFSET fallocate offset\n"
+ " -M, --max-file-size=LENGTH maximum size of file, don't required in\n"
+ " preallocation mode\n"
+ " -s, --write-start-offset=OFFSET make holes at the begnning of source file\n"
+ " -k, --write-skip-bytes=BYTES skip a range of bytes for next write\n"
+ " -l, --write-bytes=BYTES create data extent in number of bytes\n"
+ " -p, --sync-page-offset=OFFSET sync dirty pages from where\n"
+ " -b, --sync-page-bytes=BYTES sync dirty pages for a number of bytes\n"
+ " -f, --sync-page-flags=FLAGS sync dirty pages in which mode\n"
+ " -P preallocate space for source file\n"
+ " -N fallocate(2) in keep size mode\n"
+ " -S sync out dirty pages\n"
+ " -E make hole at the end of source file in\n"
+ " non-preallocate mode\n",
+ progname);
+
+ exit(1);
+}
+
+int
+main(int argc, char **argv)
+{
+ int opt;
+ int src_fd;
+ int dest_fd;
+ int ret = 0;
+ int do_falloc = 0;
+ int falloc_mode = 0;
+ int do_sync_dirty_pages = 0;
+ int wrote_hole_at_eof = 0;
+ uint32_t sync_page_flags = 0;
+ size_t src_total_size;
+ size_t max_file_size = 0;
+ off_t falloc_length = 0;
+ off_t falloc_offset = 0;
+ off_t seek_start_offset = 0;
+ off_t seek_skip_bytes = 0;
+ off_t sync_page_offset = 0;
+ off_t sync_page_bytes = 0;
+ uint64_t seek_write_bytes = 0;
+ char *src_file = NULL;
+ char *dest_file = NULL;
+ struct stat st;
+
+ while ((opt = getopt_long(argc, argv, "PO:L:NM:s:k:l:Sp:b:f:E",
+ longopts, NULL)) != -1) {
+ switch(opt) {
+ case 'P':
+ do_falloc = 1;
+ break;
+ case 'O':
+ /* Preallocate disk space from where */
+ falloc_offset = parse_size(optarg);
+ assert(falloc_offset <= OFF_T_MAX);
+ break;
+ case 'L':
+ /* Preallocate disk space length */
+ falloc_length = parse_size(optarg);
+ assert(falloc_offset <= OFF_T_MAX);
+ break;
+ case 'N':
+ /* Preallocation in KEEP_FILE_SIZE mode */
+ falloc_mode = FALLOC_FL_KEEP_SIZE;
+ break;
+ case 'M':
+ /*
+ * The maximum length of source file, only valid
+ * if the source file created in non-preallocation
+ * mode. Otherwise, it will be set to falloc_length.
+ */
+ max_file_size = parse_size(optarg);
+ case 's':
+ /*
+ * Seek to where for the first write. It will create
+ * a hole at the beginning of the source file if this
+ * option was specified. It can be ignored if you don't
+ * want that.
+ */
+ seek_start_offset = parse_size(optarg);
+ assert(seek_start_offset <= OFF_T_MAX);
+ break;
+ case 'k':
+ /*
+ * Skip the number of bytes for the next data write.
+ * It is used to create holes in the middle of file.
+ * If this option was not specified, using blocksize
+ * instead.
+ */
+ seek_skip_bytes = parse_size(optarg);
+ assert(seek_start_offset <= OFF_T_MAX);
+ break;
+ case 'l':
+ /*
+ * Write the number of bytes after seeking, we
+ * we can make the disk fragmented as much as
+ * possbile by tweaking up this value.
+ */
+ seek_write_bytes = parse_size(optarg);
+ break;
+ case 'S':
+ /*
+ * Call sync_file_range(2) to writeout dirty
+ * pages. It can be used to test WRITEBACK pages
+ * probing branch.
+ */
+ do_sync_dirty_pages = 1;
+ break;
+ case 'p':
+ /*
+ * Sync out dirty pages starting from where, sync
+ * from 0 if it was not specified.
+ */
+ sync_page_offset = parse_size(optarg);
+ break;
+ case 'b':
+ /*
+ * If it was not specified, sync out pages from
+ * above offset to the end of file.
+ */
+ sync_page_bytes = parse_size(optarg);
+ break;
+ case 'f':
+ /*
+ * By default, SYNC_FILE_RANGE_WRITE will be used if
+ * this option was not specified.
+ */
+ sync_page_flags = (uint32_t)atol(optarg);
+ break;
+ case 'E':
+ wrote_hole_at_eof = 1;
+ break;
+ default:
+ usage(argv[0]);
+ }
+ }
+
+ if (argc - optind < 2) {
+ usage(argv[0]);
+ return 1;
+ }
+
+ src_file = strdup(argv[argc - 2]);
+ if (!src_file) {
+ usage(argv[0]);
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ dest_file = strdup(argv[argc - 1]);
+ if (!dest_file) {
+ usage(argv[0]);
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ if (!do_falloc && (falloc_length || falloc_offset)) {
+ error("Invalid arguments, missing -F or --fallocate option "
+ "for fallocation tests");
+ usage(argv[0]);
+ goto out;
+ }
+
+ if (do_falloc && !falloc_length) {
+ error("Invalid arguments, fallocate length must be specified "
+ "for fallocation tests");
+ usage(argv[0]);
+ goto out;
+ }
+
+ if (!do_falloc && !max_file_size) {
+ error("Invalid arguments, missing -M or --max-file-size option "
+ "in none-fallocate mode");
+ usage(argv[0]);
+ goto out;
+ }
+
+ if (falloc_length && max_file_size) {
+ error("Invalid arguments, don't combine -M with -F options");
+ usage(argv[0]);
+ goto out;
+ }
+
+ if (!do_sync_dirty_pages && (sync_page_offset ||
+ sync_page_bytes ||
+ sync_page_flags)) {
+ error("Invalid argument, missing -S or --sync-pages option "
+ "for sync file range tests");
+ usage(argv[0]);
+ return 1;
+ }
+
+ if (do_sync_dirty_pages && !sync_page_flags)
+ sync_page_flags = SYNC_FILE_RANGE_WRITE;
+
+ src_fd = open(src_file, O_RDWR|O_CREAT|O_TRUNC, 0644);
+ if (src_fd < 0) {
+ error("create %s failed as %s", src_file, strerror(errno));
+ goto out;
+ }
+
+ dest_fd = open(dest_file, O_RDWR|O_CREAT|O_TRUNC, 0644);
+ if (dest_fd < 0) {
+ error("create %s failed as %s", dest_file, strerror(errno));
+ close(src_fd);
+ goto close_src_fd;
+ }
+
+ if (do_falloc) {
+ /* Preallocate space for source file */
+ ret = fallocate(src_fd, falloc_mode,
+ falloc_offset, falloc_length);
+ if (ret < 0) {
+ error("fallocate file %s failed as %s",
+ src_file, strerror(errno));
+ goto close_dest_fd;
+ }
+ max_file_size = falloc_length;
+ }
+
+ /*
+ * If seek_write_bytes was not specified, fill up data extent
+ * to st.st_blksize for each write.
+ */
+ if (!seek_write_bytes) {
+ seek_write_bytes = get_block_size(src_fd);
+ if (seek_write_bytes < 0) {
+ error("get %s block size failed as %s",
+ src_file, strerror(errno));
+ goto close_dest_fd;
+ }
+ }
+
+ /*
+ * Seek to seek_offset, write seek_write_len to dest file,
+ * skip seek_skip_len for next write.
+ */
+ ret = create_data_and_holes(src_fd, max_file_size,
+ seek_start_offset,
+ seek_skip_bytes,
+ seek_write_bytes,
+ wrote_hole_at_eof);
+ if (ret < 0) {
+ error("seek write to %s failed", src_file);
+ goto close_dest_fd;
+ }
+
+ if (do_sync_dirty_pages) {
+ ret = writeout_dirty_pages(src_fd, sync_page_offset,
+ sync_page_bytes, sync_page_flags);
+ if (ret < 0) {
+ error("write out dirty pages failed as %s",
+ strerror(errno));
+ goto close_dest_fd;
+ }
+ }
+
+ /*
+ * Note that if the source file created in non-fallocte mode,
+ * the source file size might less than the max_file_size.
+ */
+ ret = fstat(src_fd, &st);
+ if (ret < 0) {
+ error("get file %s staticis failed as %s",
+ src_file, strerror(errno));
+ goto close_dest_fd;
+ }
+
+ src_total_size = st.st_size;
+ ret = copy_extents(src_fd, dest_fd, src_total_size);
+ if (ret < 0)
+ error("extents copy failed");
+
+close_dest_fd:
+ close(dest_fd);
+close_src_fd:
+ close(src_fd);
+out:
+ if (src_file)
+ free(src_file);
+ if (dest_file)
+ free(dest_file);
+ return ret;
+}
--
1.7.9