+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2011 Oracle. All rights reserved.
* Copyright (C) 2011 Red Hat. 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
+#define _FILE_OFFSET_BITS 64
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/vfs.h>
#include <unistd.h>
#include <stdlib.h>
#include <assert.h>
+#include "global.h"
#ifndef SEEK_DATA
#define SEEK_DATA 3
#endif
static blksize_t alloc_size;
+int allow_default_behavior = 1;
int default_behavior = 0;
+int unwritten_extents = 0;
+int punch_hole = 0;
char *base_file_path;
static void get_file_system(int fd)
static int get_io_sizes(int fd)
{
- struct stat buf;
- int ret;
-
- ret = fstat(fd, &buf);
- if (ret)
- fprintf(stderr, " ERROR %d: Failed to find io blocksize\n",
- errno);
+ off_t pos = 0, offset = 1;
+ struct stat buf;
+ int shift, ret;
+
+ ret = fstat(fd, &buf);
+ if (ret) {
+ fprintf(stderr, " ERROR %d: Failed to find io blocksize\n",
+ errno);
+ return ret;
+ }
- /* st_blksize is typically also the allocation size */
- alloc_size = buf.st_blksize;
- fprintf(stdout, "Allocation size: %ld\n", alloc_size);
+ /* st_blksize is typically also the allocation size */
+ alloc_size = buf.st_blksize;
+
+ /* try to discover the actual alloc size */
+ while (pos == 0 && offset < alloc_size) {
+ offset <<= 1;
+ ftruncate(fd, 0);
+ pwrite(fd, "a", 1, offset);
+ pos = lseek(fd, 0, SEEK_DATA);
+ if (pos == -1)
+ goto fail;
+ }
- return ret;
+ /* bisect */
+ shift = offset >> 2;
+ while (shift && offset < alloc_size) {
+ ftruncate(fd, 0);
+ pwrite(fd, "a", 1, offset);
+ pos = lseek(fd, 0, SEEK_DATA);
+ if (pos == -1)
+ goto fail;
+ offset += pos ? -shift : shift;
+ shift >>= 1;
+ }
+ if (!shift)
+ offset += pos ? 0 : 1;
+ alloc_size = offset;
+ fprintf(stdout, "Allocation size: %ld\n", alloc_size);
+ return 0;
+
+fail:
+ fprintf(stderr, "Kernel does not support llseek(2) extension "
+ "SEEK_DATA. Aborting.\n");
+ return -1;
}
#define do_free(x) do { if(x) free(x); } while(0);
ret = fallocate(fd, mode, offset, length);
if (ret)
- fprintf(stderr, " ERROR %d: Failed to preallocate "
- "space to %ld bytes\n", errno, (long) length);
+ fprintf(stderr, " ERROR %d: Failed to %s of %ld bytes\n",
+ errno, (mode & FALLOC_FL_PUNCH_HOLE) ? "punch hole" :
+ "preallocate space", (long) length);
return ret;
}
static ssize_t do_pwrite(int fd, const void *buf, size_t count, off_t offset)
{
- ssize_t ret, written = 0;
-
- while (count > written) {
- ret = pwrite(fd, buf + written, count - written, offset + written);
- if (ret < 0) {
- fprintf(stderr, " ERROR %d: Failed to write %ld "
- "bytes\n", errno, (long)count);
- return ret;
- }
- written += ret;
- }
+ ssize_t ret, written = 0;
+
+ while (count > written) {
+ ret = pwrite(fd, buf + written, count - written, offset + written);
+ if (ret < 0) {
+ /* Don't warn about too large file. It's fs dependent. */
+ if (errno == EFBIG)
+ return ret;
+ fprintf(stderr, " ERROR %d: Failed to write %ld "
+ "bytes\n", errno, (long)count);
+ return ret;
+ }
+ written += ret;
+ }
- return 0;
+ return 0;
}
#define do_close(x) do { if ((x) > -1) close(x); } while(0);
return fd;
}
-static int do_lseek(int testnum, int subtest, int fd, int filsz, int origin,
+static int do_lseek(int testnum, int subtest, int fd, off_t filsz, int origin,
off_t set, off_t exp)
{
off_t pos, exp2;
ret = !(errno == ENXIO);
} else {
- x = fprintf(stdout, "%02d.%02d %s expected %ld or %ld, got %ld. ",
+ x = fprintf(stdout, "%02d.%02d %s expected %lld or %lld, got %lld. ",
testnum, subtest,
(origin == SEEK_HOLE) ? "SEEK_HOLE" : "SEEK_DATA",
- (long)exp, (long)exp2, (long)pos);
+ (long long)exp, (long long)exp2, (long long)pos);
ret = !(pos == exp || pos == exp2);
}
return ret;
}
+static int huge_file_test(int fd, int testnum, off_t filsz)
+{
+ char *buf = NULL;
+ int bufsz = alloc_size * 16; /* XFS seems to round allocated size */
+ off_t off = filsz - bufsz;
+ int ret = -1;
+
+ buf = do_malloc(bufsz);
+ if (!buf)
+ goto out;
+ memset(buf, 'a', bufsz);
+
+ /* |- DATA -|- HUGE HOLE -|- DATA -| */
+ ret = do_pwrite(fd, buf, bufsz, 0);
+ if (ret)
+ goto out;
+ ret = do_pwrite(fd, buf, bufsz, off);
+ if (ret) {
+ /*
+ * Report success. Filesystem just cannot handle so large
+ * offsets and correctly reports it.
+ */
+ if (errno == EFBIG) {
+ fprintf(stdout, "Test skipped as fs doesn't support so large files.\n");
+ ret = 0;
+ }
+ goto out;
+ }
+
+ /* offset at the beginning */
+ ret += do_lseek(testnum, 1, fd, filsz, SEEK_HOLE, 0, bufsz);
+ ret += do_lseek(testnum, 2, fd, filsz, SEEK_HOLE, 1, bufsz);
+ ret += do_lseek(testnum, 3, fd, filsz, SEEK_DATA, 0, 0);
+ ret += do_lseek(testnum, 4, fd, filsz, SEEK_DATA, 1, 1);
+
+ /* offset around eof */
+ ret += do_lseek(testnum, 5, fd, filsz, SEEK_HOLE, off, off + bufsz);
+ ret += do_lseek(testnum, 6, fd, filsz, SEEK_DATA, off, off);
+ ret += do_lseek(testnum, 7, fd, filsz, SEEK_DATA, off + 1, off + 1);
+ ret += do_lseek(testnum, 8, fd, filsz, SEEK_DATA, off - bufsz, off);
+
+out:
+ do_free(buf);
+ return ret;
+}
+
+/*
+ * Make sure hole size is properly reported when punched in the middle of a file
+ */
+static int test21(int fd, int testnum)
+{
+ char *buf = NULL;
+ int bufsz, filsz;
+ int ret = 0;
+
+ if (!punch_hole) {
+ fprintf(stdout, "Test skipped as fs doesn't support punch hole.\n");
+ goto out;
+ }
+
+ if (default_behavior) {
+ fprintf(stdout, "Test skipped as fs doesn't support seeking a punched hole.\n");
+ goto out;
+ }
+
+ bufsz = alloc_size * 3;
+ buf = do_malloc(bufsz);
+ if (!buf) {
+ ret = -1;
+ goto out;
+ }
+ memset(buf, 'a', bufsz);
+
+ ret = do_pwrite(fd, buf, bufsz, 0);
+ if (ret)
+ goto out;
+
+ filsz = bufsz;
+ ret = do_fallocate(fd, alloc_size, alloc_size,
+ FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE);
+ if (ret < 0)
+ goto out;
+
+ ret += do_lseek(testnum, 1, fd, filsz, SEEK_DATA, 0, 0);
+ ret += do_lseek(testnum, 2, fd, filsz, SEEK_HOLE, 0, alloc_size);
+ ret += do_lseek(testnum, 3, fd, filsz, SEEK_DATA, alloc_size, alloc_size * 2);
+out:
+ if (buf)
+ free(buf);
+ return ret;
+}
+
+/*
+ * Make sure hole size is properly reported when starting in the middle of a
+ * hole in ext? doubly indirect tree
+ */
+static int test20(int fd, int testnum)
+{
+ int ret = -1;
+ char *buf = NULL;
+ loff_t bufsz, filsz;
+
+ bufsz = alloc_size;
+ buf = do_malloc(bufsz);
+ if (!buf)
+ goto out;
+ memset(buf, 'a', bufsz);
+
+ /* Magic size in the middle of ext[23] triple indirect tree */
+ filsz = (12 + bufsz / 4 + 8 * bufsz / 4 * bufsz / 4 + 2 * bufsz / 4 + 5) * bufsz;
+ ret = do_pwrite(fd, buf, bufsz, filsz - bufsz);
+ if (ret) {
+ /*
+ * Report success. Filesystem just cannot handle so large
+ * offsets and correctly reports it.
+ */
+ if (errno == EFBIG) {
+ fprintf(stdout, "Test skipped as fs doesn't support so large files.\n");
+ ret = 0;
+ }
+ goto out;
+ }
+
+ /* Offset inside ext[23] indirect block */
+ ret += do_lseek(testnum, 1, fd, filsz, SEEK_DATA, 14 * bufsz, filsz - bufsz);
+ /* Offset inside ext[23] doubly indirect block */
+ ret += do_lseek(testnum, 2, fd, filsz, SEEK_DATA, (12 + 2 * bufsz / 4) * bufsz, filsz - bufsz);
+ /* Offsets inside ext[23] triply indirect block */
+ ret += do_lseek(testnum, 3, fd, filsz, SEEK_DATA,
+ (12 + bufsz / 4 + bufsz / 4 * bufsz / 4 + 3 * bufsz / 4 + 5) * bufsz, filsz - bufsz);
+ ret += do_lseek(testnum, 3, fd, filsz, SEEK_DATA,
+ (12 + bufsz / 4 + 7 * bufsz / 4 * bufsz / 4 + 5 * bufsz / 4) * bufsz, filsz - bufsz);
+ ret += do_lseek(testnum, 3, fd, filsz, SEEK_DATA,
+ (12 + bufsz / 4 + 8 * bufsz / 4 * bufsz / 4 + bufsz / 4 + 11) * bufsz, filsz - bufsz);
+out:
+ if (buf)
+ free(buf);
+ return ret;
+}
+/*
+ * Make sure hole size is properly reported when starting in the middle of a
+ * hole in ext? indirect tree
+ */
+static int test19(int fd, int testnum)
+{
+ int ret = -1;
+ char *buf = NULL;
+ int bufsz, filsz;
+
+ bufsz = alloc_size;
+ buf = do_malloc(bufsz);
+ if (!buf)
+ goto out;
+ memset(buf, 'a', bufsz);
+
+ /* Magic size just beyond ext[23] indirect tree size */
+ filsz = (12 + bufsz / 4 + 1) * bufsz;
+ ret = do_pwrite(fd, buf, bufsz, filsz - bufsz);
+ if (ret)
+ goto out;
+
+ ret += do_lseek(testnum, 1, fd, filsz, SEEK_DATA, bufsz, filsz - bufsz);
+ ret += do_lseek(testnum, 2, fd, filsz, SEEK_DATA, 12*bufsz, filsz - bufsz);
+ ret += do_lseek(testnum, 3, fd, filsz, SEEK_DATA, (12 + bufsz / 4 - 8)*bufsz, filsz - bufsz);
+out:
+ if (buf)
+ free(buf);
+ return ret;
+}
+
+/* Make sure we get ENXIO if we pass in a negative offset. */
+static int test18(int fd, int testnum)
+{
+ int ret = 0;
+
+ /* file size doesn't matter in this test, set to 0 */
+ ret += do_lseek(testnum, 1, fd, 0, SEEK_HOLE, -1, -1);
+ ret += do_lseek(testnum, 2, fd, 0, SEEK_DATA, -1, -1);
+
+ return ret;
+}
+
+static int test17(int fd, int testnum)
+{
+ char *buf = NULL;
+ int pagesz = sysconf(_SC_PAGE_SIZE);
+ int bufsz, filsz;
+ int ret = 0;
+
+ if (!unwritten_extents) {
+ fprintf(stdout, "Test skipped as fs doesn't support unwritten extents.\n");
+ goto out;
+ }
+
+ if (pagesz < 4 * alloc_size) {
+ fprintf(stdout, "Test skipped as page size (%d) is less than "
+ "four times allocation size (%d).\n",
+ pagesz, (int)alloc_size);
+ goto out;
+ }
+ bufsz = alloc_size;
+ filsz = 3 * bufsz;
+
+ buf = do_malloc(bufsz);
+ if (!buf) {
+ ret = -1;
+ goto out;
+ }
+ memset(buf, 'a', bufsz);
+
+ ret = do_fallocate(fd, 0, filsz, 0);
+ if (ret < 0)
+ goto out;
+
+ ret = do_pwrite(fd, buf, bufsz, 0);
+ if (ret)
+ goto out;
+
+ ret = do_pwrite(fd, buf, bufsz, 2 * bufsz);
+ if (ret)
+ goto out;
+
+ ret += do_lseek(testnum, 1, fd, filsz, SEEK_DATA, 0, 0);
+ ret += do_lseek(testnum, 2, fd, filsz, SEEK_HOLE, 0, bufsz);
+ ret += do_lseek(testnum, 3, fd, filsz, SEEK_DATA, 1, 1);
+ ret += do_lseek(testnum, 4, fd, filsz, SEEK_HOLE, 1, bufsz);
+ ret += do_lseek(testnum, 5, fd, filsz, SEEK_DATA, bufsz, 2 * bufsz);
+ ret += do_lseek(testnum, 6, fd, filsz, SEEK_HOLE, bufsz, bufsz);
+ ret += do_lseek(testnum, 7, fd, filsz, SEEK_DATA, bufsz + 1, 2 * bufsz);
+ ret += do_lseek(testnum, 8, fd, filsz, SEEK_HOLE, bufsz + 1, bufsz + 1);
+ ret += do_lseek(testnum, 9, fd, filsz, SEEK_DATA, 2 * bufsz, 2 * bufsz);
+ ret += do_lseek(testnum, 10, fd, filsz, SEEK_HOLE, 2 * bufsz, 3 * bufsz);
+ ret += do_lseek(testnum, 11, fd, filsz, SEEK_DATA, 2 * bufsz + 1, 2 * bufsz + 1);
+ ret += do_lseek(testnum, 12, fd, filsz, SEEK_HOLE, 2 * bufsz + 1, 3 * bufsz);
+
+ filsz += bufsz;
+ ret += do_fallocate(fd, 0, filsz, 0);
+
+ ret += do_lseek(testnum, 13, fd, filsz, SEEK_DATA, 3 * bufsz, -1);
+ ret += do_lseek(testnum, 14, fd, filsz, SEEK_HOLE, 3 * bufsz, 3 * bufsz);
+ ret += do_lseek(testnum, 15, fd, filsz, SEEK_DATA, 3 * bufsz + 1, -1);
+ ret += do_lseek(testnum, 16, fd, filsz, SEEK_HOLE, 3 * bufsz + 1, 3 * bufsz + 1);
+
+out:
+ do_free(buf);
+ return ret;
+}
+
+/*
+ * test file with unwritten extents, having non-contiguous dirty pages in
+ * the unwritten extent.
+ */
+static int test16(int fd, int testnum)
+{
+ int ret = 0;
+ char *buf = NULL;
+ int bufsz = sysconf(_SC_PAGE_SIZE);
+ int filsz = 4 << 20;
+
+ if (!unwritten_extents) {
+ fprintf(stdout, "Test skipped as fs doesn't support unwritten extents.\n");
+ goto out;
+ }
+
+ /* HOLE - unwritten DATA in dirty page */
+ /* Each unit is bufsz */
+ buf = do_malloc(bufsz);
+ if (!buf)
+ goto out;
+ memset(buf, 'a', bufsz);
+
+ /* preallocate 4M space to file */
+ ret = do_fallocate(fd, 0, filsz, 0);
+ if (ret < 0)
+ goto out;
+
+ ret = do_pwrite(fd, buf, bufsz, 0);
+ if (ret)
+ goto out;
+
+ ret = do_pwrite(fd, buf, bufsz, filsz/2);
+ if (ret)
+ goto out;
+
+ /* offset at the beginning */
+ ret += do_lseek(testnum, 1, fd, filsz, SEEK_HOLE, 0, bufsz);
+ ret += do_lseek(testnum, 2, fd, filsz, SEEK_HOLE, 1, bufsz);
+ ret += do_lseek(testnum, 3, fd, filsz, SEEK_DATA, 0, 0);
+ ret += do_lseek(testnum, 4, fd, filsz, SEEK_DATA, 1, 1);
+ ret += do_lseek(testnum, 5, fd, filsz, SEEK_DATA, bufsz, filsz/2);
+ ret += do_lseek(testnum, 6, fd, filsz, SEEK_HOLE, filsz/2,
+ filsz/2 + bufsz);
+
+out:
+ do_free(buf);
+ return ret;
+}
+
+/*
+ * test file with unwritten extents, having page just after end of unwritten
+ * extent.
+ */
+static int test15(int fd, int testnum)
+{
+ int ret = 0;
+ char *buf = NULL;
+ int bufsz = sysconf(_SC_PAGE_SIZE);
+ int filsz = 4 << 20;
+
+ if (!unwritten_extents) {
+ fprintf(stdout, "Test skipped as fs doesn't support unwritten extents.\n");
+ goto out;
+ }
+
+ /* HOLE - unwritten DATA in dirty page */
+ /* Each unit is bufsz */
+ buf = do_malloc(bufsz);
+ if (!buf)
+ goto out;
+ memset(buf, 'a', bufsz);
+
+ /* preallocate 4M space to file */
+ ret = do_fallocate(fd, 0, filsz, 0);
+ if (ret < 0)
+ goto out;
+
+ ret = do_pwrite(fd, buf, bufsz, 0);
+ if (ret)
+ goto out;
+
+ /* One page written just after end of unwritten extent... */
+ ret = do_pwrite(fd, buf, bufsz, filsz);
+ if (ret)
+ goto out;
+
+ /* update file size */
+ filsz += bufsz;
+
+ /* offset at the beginning */
+ ret += do_lseek(testnum, 1, fd, filsz, SEEK_HOLE, 0, bufsz);
+ ret += do_lseek(testnum, 2, fd, filsz, SEEK_HOLE, 1, bufsz);
+ ret += do_lseek(testnum, 3, fd, filsz, SEEK_DATA, 0, 0);
+ ret += do_lseek(testnum, 4, fd, filsz, SEEK_DATA, 1, 1);
+ ret += do_lseek(testnum, 5, fd, filsz, SEEK_DATA, bufsz, filsz - bufsz);
+
+out:
+ do_free(buf);
+ return ret;
+}
+
+/*
+ * test file with unwritten extents, only have pagevec worth of dirty pages
+ * in page cache, a hole and then another page.
+ */
+static int test14(int fd, int testnum)
+{
+ int ret = 0;
+ char *buf = NULL;
+ int bufsz = sysconf(_SC_PAGE_SIZE) * 14;
+ int filsz = 4 << 20;
+
+ if (!unwritten_extents) {
+ fprintf(stdout, "Test skipped as fs doesn't support unwritten extents.\n");
+ goto out;
+ }
+
+ /* HOLE - unwritten DATA in dirty page */
+ /* Each unit is bufsz */
+ buf = do_malloc(bufsz);
+ if (!buf)
+ goto out;
+ memset(buf, 'a', bufsz);
+
+ /* preallocate 4M space to file */
+ ret = do_fallocate(fd, 0, filsz, 0);
+ if (ret < 0)
+ goto out;
+
+ ret = do_pwrite(fd, buf, bufsz, 0);
+ if (ret)
+ goto out;
+
+ ret = do_pwrite(fd, buf, bufsz, 3 * bufsz);
+ if (ret)
+ goto out;
+
+ /* offset at the beginning */
+ ret += do_lseek(testnum, 1, fd, filsz, SEEK_HOLE, 0, bufsz);
+ ret += do_lseek(testnum, 2, fd, filsz, SEEK_HOLE, 1, bufsz);
+ ret += do_lseek(testnum, 3, fd, filsz, SEEK_HOLE, 3 * bufsz, 4 * bufsz);
+ ret += do_lseek(testnum, 4, fd, filsz, SEEK_DATA, 0, 0);
+ ret += do_lseek(testnum, 5, fd, filsz, SEEK_DATA, 1, 1);
+ ret += do_lseek(testnum, 6, fd, filsz, SEEK_DATA, bufsz, 3 * bufsz);
+
+out:
+ do_free(buf);
+ return ret;
+}
+
+/*
+ * test file with unwritten extents, only have pagevec worth of dirty pages
+ * in page cache.
+ */
+static int test13(int fd, int testnum)
+{
+ int ret = 0;
+ char *buf = NULL;
+ int bufsz = sysconf(_SC_PAGE_SIZE) * 14;
+ int filsz = 4 << 20;
+
+ if (!unwritten_extents) {
+ fprintf(stdout, "Test skipped as fs doesn't support unwritten extents.\n");
+ goto out;
+ }
+
+ /* HOLE - unwritten DATA in dirty page */
+ /* Each unit is bufsz */
+ buf = do_malloc(bufsz);
+ if (!buf)
+ goto out;
+ memset(buf, 'a', bufsz);
+
+ /* preallocate 4M space to file */
+ ret = do_fallocate(fd, 0, filsz, 0);
+ if (ret < 0)
+ goto out;
+
+ ret = do_pwrite(fd, buf, bufsz, 0);
+ if (ret)
+ goto out;
+
+ /* offset at the beginning */
+ ret += do_lseek(testnum, 1, fd, filsz, SEEK_HOLE, 0, bufsz);
+ ret += do_lseek(testnum, 2, fd, filsz, SEEK_HOLE, 1, bufsz);
+ ret += do_lseek(testnum, 3, fd, filsz, SEEK_DATA, 0, 0);
+ ret += do_lseek(testnum, 4, fd, filsz, SEEK_DATA, 1, 1);
+
+out:
+ do_free(buf);
+ return ret;
+}
+
+/*
+ * Test huge file to check for overflows of block counts due to usage of
+ * 32-bit types.
+ */
+static int test12(int fd, int testnum)
+{
+ return huge_file_test(fd, testnum,
+ ((long long)alloc_size << 32) + (1 << 20));
+}
+
+/*
+ * Test huge file to check for overflows of block counts due to usage of
+ * signed types
+ */
+static int test11(int fd, int testnum)
+{
+ return huge_file_test(fd, testnum,
+ ((long long)alloc_size << 31) + (1 << 20));
+}
+
+/* Test an 8G file to check for offset overflows at 1 << 32 */
+static int test10(int fd, int testnum)
+{
+ return huge_file_test(fd, testnum, 8ULL << 30);
+}
+
/*
* test file with unwritten extents, have both dirty and
* writeback pages in page cache.
int ret = 0;
char *buf = NULL;
int bufsz = alloc_size;
- int filsz = 8 << 20;
+ int filsz = bufsz * 100 + bufsz;
+
+ if (!unwritten_extents) {
+ fprintf(stdout, "Test skipped as fs doesn't support unwritten extents.\n");
+ goto out;
+ }
/*
* HOLE - unwritten DATA in dirty page - HOLE -
int ret = 0;
char *buf = NULL;
int bufsz = alloc_size;
- int filsz = 4 << 20;
+ int filsz = bufsz * 10 + bufsz;
+
+ if (!unwritten_extents) {
+ fprintf(stdout, "Test skipped as fs doesn't support unwritten extents.\n");
+ goto out;
+ }
/* HOLE - unwritten DATA in writeback page */
/* Each unit is bufsz */
int ret = 0;
char *buf = NULL;
int bufsz = alloc_size;
- int filsz = 4 << 20;
+ int filsz = bufsz * 10 + bufsz;
+
+ if (!unwritten_extents) {
+ fprintf(stdout, "Test skipped as fs doesn't support unwritten extents.\n");
+ goto out;
+ }
/* HOLE - unwritten DATA in dirty page */
/* Each unit is bufsz */
{ 7, test07, "Test file with unwritten extents, only have dirty pages" },
{ 8, test08, "Test file with unwritten extents, only have unwritten pages" },
{ 9, test09, "Test file with unwritten extents, have both dirty && unwritten pages" },
+ { 10, test10, "Test a huge file for offset overflow" },
+ { 11, test11, "Test a huge file for block number signed" },
+ { 12, test12, "Test a huge file for block number overflow" },
+ { 13, test13, "Test file with unwritten extents, only have pagevec dirty pages" },
+ { 14, test14, "Test file with unwritten extents, small hole after pagevec dirty pages" },
+ { 15, test15, "Test file with unwritten extents, page after unwritten extent" },
+ { 16, test16, "Test file with unwritten extents, non-contiguous dirty pages" },
+ { 17, test17, "Test file with unwritten extents, data-hole-data inside page" },
+ { 18, test18, "Test file with negative SEEK_{HOLE,DATA} offsets" },
+ { 19, test19, "Test file SEEK_DATA from middle of a large hole" },
+ { 20, test20, "Test file SEEK_DATA from middle of a huge hole" },
+ { 21, test21, "Test file SEEK_HOLE that was created by PUNCH_HOLE" },
};
static int run_test(struct testrec *tr)
if (ret)
goto out;
+ ftruncate(fd, 0);
bufsz = alloc_size * 2;
filsz = bufsz * 2;
goto out;
/* Is SEEK_DATA and SEEK_HOLE supported in the kernel? */
- pos = lseek(fd, 0, SEEK_DATA);
- if (pos != -1)
- pos = lseek(fd, 0, SEEK_HOLE);
+ pos = lseek(fd, 0, SEEK_HOLE);
if (pos == -1) {
- fprintf(stderr, "Kernel does not support llseek(2) extensions "
- "SEEK_HOLE and/or SEEK_DATA. Aborting.\n");
+ fprintf(stderr, "Kernel does not support llseek(2) extension "
+ "SEEK_HOLE. Aborting.\n");
ret = -1;
goto out;
}
fprintf(stderr, "File system supports the default behavior.\n");
}
+ if (default_behavior && !allow_default_behavior) {
+ fprintf(stderr, "Default behavior is not allowed. Aborting.\n");
+ ret = -1;
+ goto out;
+ }
+
+ ftruncate(fd, 0);
+ if (fallocate(fd, 0, 0, alloc_size * 2) == -1) {
+ if (errno == EOPNOTSUPP)
+ fprintf(stderr, "File system does not support fallocate.\n");
+ else {
+ fprintf(stderr, "ERROR %d: Failed to preallocate "
+ "space to %ld bytes. Aborting.\n", errno, (long) alloc_size);
+ ret = -1;
+ }
+ goto out;
+ } else if (fallocate(fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
+ 0, alloc_size) == -1) {
+ fprintf(stderr, "File system does not support punch hole.\n");
+ } else {
+ punch_hole = 1;
+ }
+
+ pos = lseek(fd, 0, SEEK_DATA);
+ if (pos == 0) {
+ fprintf(stderr, "File system does not support unwritten extents.\n");
+ goto out;
+ }
+ unwritten_extents = 1;
+
printf("\n");
out:
return ret;
}
+void usage(char *cmd)
+{
+ fprintf(stdout, "Usage: %s [-tf] [-s <starttest>] [-e <endtest>] base_file_path\n", cmd);
+ exit(1);
+}
+
int main(int argc, char **argv)
{
int ret = -1;
int opt;
int check_support = 0;
int numtests = sizeof(seek_tests) / sizeof(struct testrec);
+ int teststart, testend;
- if (argc != 2) {
- fprintf(stdout, "Usage: %s base_file_path\n", argv[0]);
- return ret;
- }
+ /*
+ * First twelve tests are used by generic/285. To run these is the
+ * default. Further tests are run e.g. by generic/436. They are not
+ * run by default in order to not regress older kernels.
+ */
+ teststart = 1;
+ testend = 12;
- while ((opt = getopt(argc, argv, "t")) != -1) {
+ while ((opt = getopt(argc, argv, "tfs:e:")) != -1) {
switch (opt) {
case 't':
check_support++;
break;
+ case 'f':
+ allow_default_behavior = 0;
+ break;
+ case 's':
+ teststart = strtol(optarg, NULL, 10);
+ if (teststart <= 0 || teststart > numtests) {
+ fprintf(stdout, "Invalid starting test: %s\n",
+ optarg);
+ usage(argv[0]);
+ }
+ break;
+ case 'e':
+ testend = strtol(optarg, NULL, 10);
+ if (testend <= 0 || testend > numtests) {
+ fprintf(stdout, "Invalid final test: %s\n",
+ optarg);
+ usage(argv[0]);
+ }
+ break;
default:
- fprintf(stderr, "Usage: %s [-t] base_file_path\n",
- argv[0]);
- return ret;
+ usage(argv[0]);
}
}
+ /* should be exactly one arg left, the filename */
+ if (optind != argc - 1)
+ usage(argv[0]);
+
+ if (teststart > testend) {
+ fprintf(stdout, "Starting test is larger than final test!\n");
+ usage(argv[0]);
+ }
+
base_file_path = (char *)strdup(argv[optind]);
ret = test_basic_support();
goto out;
for (i = 0; i < numtests; ++i) {
- ret = run_test(&seek_tests[i]);
- if (ret)
- break;
+ if (seek_tests[i].test_num >= teststart &&
+ seek_tests[i].test_num <= testend) {
+ ret = run_test(&seek_tests[i]);
+ if (ret)
+ break;
+ }
}
out:
projects / xfstests-dev.git / blobdiff