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https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
xfs: test per-inode DAX flag by IO
In a DAX mountpoint, do IO betwen files with and without DAX per-inode flag. We do mmap, both O_DIRECT and buffered read/write IO in this case. Then test again in the same device without dax mountoption. Add help _require_scratch_dax to make sure we can test DAX feature on SCRATCH_DEV. Add mmap dio test programme to test read/write between a mmap area of one file and another file directly or buffered, with different size. Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Xiong Zhou <xzhou@redhat.com> Reviewed-by: Eryu Guan <eguan@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
This commit is contained in:
Xiong Zhou
Eryu Guan
@@ -129,6 +129,7 @@
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/src/cloner
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/src/renameat2
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/src/t_rename_overwrite
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/src/t_mmap_dio
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# dmapi/ binaries
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/dmapi/src/common/cmd/read_invis
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@@ -2677,6 +2677,19 @@ _require_scratch_shutdown()
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_scratch_unmount
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}
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# Does dax mount option work on this dev/fs?
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_require_scratch_dax()
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{
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_require_scratch
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_scratch_mkfs > /dev/null 2>&1
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_scratch_mount -o dax
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# Check options to be sure. XFS ignores dax option
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# and goes on if dev underneath does not support dax.
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_fs_options $SCRATCH_DEV | grep -qw "dax" || \
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_notrun "$SCRATCH_DEV $FSTYP does not support -o dax"
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_scratch_unmount
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}
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# Does norecovery support by this fs?
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_require_norecovery()
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{
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+1
-1
@@ -12,7 +12,7 @@ TARGETS = dirstress fill fill2 getpagesize holes lstat64 \
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godown resvtest writemod makeextents itrash rename \
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multi_open_unlink dmiperf unwritten_sync genhashnames t_holes \
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t_mmap_writev t_truncate_cmtime dirhash_collide t_rename_overwrite \
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holetest t_truncate_self
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holetest t_truncate_self t_mmap_dio
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LINUX_TARGETS = xfsctl bstat t_mtab getdevicesize preallo_rw_pattern_reader \
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preallo_rw_pattern_writer ftrunc trunc fs_perms testx looptest \
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@@ -0,0 +1,111 @@
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/*
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* This programme was originally written by
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* Jeff Moyer <jmoyer@redhat.com>
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*
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* Copyright (C) 2016, Red Hat, Inc.
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*/
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#define _GNU_SOURCE 1
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <libaio.h>
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#include <errno.h>
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#include <sys/time.h>
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void usage(char *prog)
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{
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fprintf(stderr,
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"usage: %s <src file> <dest file> <size> <msg>\n",
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prog);
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exit(1);
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}
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void err_exit(char *op, unsigned long len, char *s)
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{
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fprintf(stderr, "%s(%s) len %lu %s\n",
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op, strerror(errno), len, s);
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exit(1);
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}
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int main(int argc, char **argv)
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{
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int fd, fd2, ret, dio = 1;
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char *map;
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char *msg;
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char *sfile;
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char *dfile;
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unsigned long len, opt;
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if (argc < 4)
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usage(basename(argv[0]));
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while ((opt = getopt(argc, argv, "b")) != -1)
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dio = 0;
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sfile = argv[optind];
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dfile = argv[optind + 1];
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msg = argv[optind + 3];
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len = strtoul(argv[optind + 2], NULL, 10);
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if (errno == ERANGE)
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err_exit("strtoul", 0, msg);
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/* Open source file and mmap*/
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fd = open(sfile, O_RDWR, 0644);
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if (fd < 0)
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err_exit("open src", len, msg);
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map = (char *)mmap(NULL, len,
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PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
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if (map == MAP_FAILED)
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err_exit("mmap", len, msg);
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if (dio == 1) {
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/* Open dest file with O_DIRECT */
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fd2 = open(dfile, O_RDWR|O_DIRECT, 0644);
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if (fd2 < 0)
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err_exit("open dest", len, msg);
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} else {
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/* Open dest file without O_DIRECT */
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fd2 = open(dfile, O_RDWR, 0644);
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if (fd2 < 0)
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err_exit("open dest", len, msg);
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}
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/* First, test storing to dest file from source mapping */
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ret = write(fd2, map, len);
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if (ret != len)
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err_exit("write", len, msg);
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ret = fsync(fd2);
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if (ret != 0)
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err_exit("fsync", len, msg);
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ret = (int)lseek(fd2, 0, SEEK_SET);
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if (ret == -1)
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err_exit("lseek", len, msg);
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/* Next, test reading from dest file into source mapping */
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ret = read(fd2, map, len);
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if (ret != len)
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err_exit("read", len, msg);
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ret = msync(map, len, MS_SYNC);
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if (ret < 0)
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err_exit("msync", len, msg);
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ret = munmap(map, len);
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if (ret < 0)
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err_exit("munmap", len, msg);
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ret = close(fd);
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if (ret < 0)
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err_exit("clsoe fd", len, msg);
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ret = close(fd2);
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if (ret < 0)
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err_exit("close fd2", len, msg);
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exit(0);
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}
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Executable
+158
@@ -0,0 +1,158 @@
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#! /bin/bash
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# FS QA Test 260
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#
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# Test per-inode DAX flag by mmap direct/buffered IO.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2017 Red Hat Inc. All Rights Reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#-----------------------------------------------------------------------
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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rm -f $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# remove previous $seqres.full before test
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rm -f $seqres.full
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_supported_fs xfs
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_supported_os Linux
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_require_scratch_dax
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_require_test_program "feature"
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_require_test_program "t_mmap_dio"
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_require_xfs_io_command "chattr" "+/-x"
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_require_xfs_io_command "falloc"
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prep_files()
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{
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rm -f $SCRATCH_MNT/tf_{s,d}
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$XFS_IO_PROG -f -c "falloc 0 $tsize" \
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$SCRATCH_MNT/tf_{s,d} >> $seqres.full 2>&1
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}
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t_both_dax()
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{
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prep_files
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$XFS_IO_PROG -c "chattr +x" $SCRATCH_MNT/tf_{s,d}
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# with O_DIRECT first
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src/t_mmap_dio $SCRATCH_MNT/tf_{s,d} $1 "dio both dax"
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prep_files
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$XFS_IO_PROG -c "chattr +x" $SCRATCH_MNT/tf_{s,d}
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# again with buffered IO
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src/t_mmap_dio -b $SCRATCH_MNT/tf_{s,d} \
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$1 "buffered both dax"
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}
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t_nondax_to_dax()
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{
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prep_files
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$XFS_IO_PROG -c "chattr -x" $SCRATCH_MNT/tf_s
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$XFS_IO_PROG -c "chattr +x" $SCRATCH_MNT/tf_d
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src/t_mmap_dio $SCRATCH_MNT/tf_{s,d} \
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$1 "dio nondax to dax"
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prep_files
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$XFS_IO_PROG -c "chattr -x" $SCRATCH_MNT/tf_s
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$XFS_IO_PROG -c "chattr +x" $SCRATCH_MNT/tf_d
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src/t_mmap_dio -b $SCRATCH_MNT/tf_{s,d} \
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$1 "buffered nondax to dax"
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}
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t_dax_to_nondax()
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{
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prep_files
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$XFS_IO_PROG -c "chattr +x" $SCRATCH_MNT/tf_s
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$XFS_IO_PROG -c "chattr -x" $SCRATCH_MNT/tf_d
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src/t_mmap_dio $SCRATCH_MNT/tf_{s,d} \
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$1 "dio dax to nondax"
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prep_files
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$XFS_IO_PROG -c "chattr +x" $SCRATCH_MNT/tf_s
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$XFS_IO_PROG -c "chattr -x" $SCRATCH_MNT/tf_d
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src/t_mmap_dio -b $SCRATCH_MNT/tf_{s,d} \
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$1 "buffered dax to nondax"
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}
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t_both_nondax()
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{
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prep_files
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$XFS_IO_PROG -c "chattr -x" $SCRATCH_MNT/tf_{s,d}
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src/t_mmap_dio $SCRATCH_MNT/tf_{s,d} \
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$1 "dio both nondax"
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prep_files
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$XFS_IO_PROG -c "chattr -x" $SCRATCH_MNT/tf_{s,d}
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src/t_mmap_dio -b $SCRATCH_MNT/tf_{s,d} \
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$1 "buffered both nondax"
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}
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# $1 mmap read/write size
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t_dax_flag_mmap_dio()
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{
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t_both_dax $1
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t_dax_to_nondax $1
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t_nondax_to_dax $1
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t_both_nondax $1
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}
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do_tests()
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{
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# less than page size
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t_dax_flag_mmap_dio 1024
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# page size
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t_dax_flag_mmap_dio `src/feature -s`
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# bigger sizes, for PMD faults
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t_dax_flag_mmap_dio $((16 * 1024 * 1024))
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t_dax_flag_mmap_dio $((64 * 1024 * 1024))
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}
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# make xfs 2Mb aligned for PMD fault testing
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_scratch_mkfs "-d su=2m,sw=1" > /dev/null 2>&1
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# mount with dax option
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_scratch_mount "-o dax"
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tsize=$((128 * 1024 * 1024))
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do_tests
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_scratch_unmount
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# mount again without dax option
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export MOUNT_OPTIONS=""
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_scratch_mount
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do_tests
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# success, all done
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echo "Silence is golden"
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status=0
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exit
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@@ -0,0 +1,2 @@
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QA output created by 260
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Silence is golden
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@@ -257,6 +257,7 @@
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257 auto quick clone
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258 auto quick clone
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259 auto quick
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260 auto attr quick
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261 auto quick quota
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263 auto quick quota
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264 auto quick mount
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