projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| 2fab30c8 HR |
1 | #!/usr/bin/env bash |
| 2 | # | |
| 3 | # Test qemu-img vs. unaligned images; O_DIRECT version | |
| 4 | # (Originates from 221) | |
| 5 | # | |
| 6 | # Copyright (C) 2019 Red Hat, Inc. | |
| 7 | # | |
| 8 | # This program is free software; you can redistribute it and/or modify | |
| 9 | # it under the terms of the GNU General Public License as published by | |
| 10 | # the Free Software Foundation; either version 2 of the License, or | |
| 11 | # (at your option) any later version. | |
| 12 | # | |
| 13 | # This program is distributed in the hope that it will be useful, | |
| 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 | # GNU General Public License for more details. | |
| 17 | # | |
| 18 | # You should have received a copy of the GNU General Public License | |
| 19 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 20 | # | |
| 21 | ||
| 22 | seq="$(basename $0)" | |
| 23 | echo "QA output created by $seq" | |
| 24 | ||
| 25 | status=1 # failure is the default! | |
| 26 | ||
| 27 | _cleanup() | |
| 28 | { | |
| 29 | _cleanup_test_img | |
| 30 | } | |
| 31 | trap "_cleanup; exit \$status" 0 1 2 3 15 | |
| 32 | ||
| 33 | # get standard environment, filters and checks | |
| 34 | . ./common.rc | |
| 35 | . ./common.filter | |
| 36 | ||
| 37 | _supported_fmt raw | |
| 38 | _supported_proto file | |
| 39 | _supported_os Linux | |
| 40 | ||
| 41 | _default_cache_mode none | |
| 42 | _supported_cache_modes none directsync | |
| 43 | ||
| 44 | echo | |
| 45 | echo "=== Check mapping of unaligned raw image ===" | |
| 46 | echo | |
| 47 | ||
| 48 | # We do not know how large a physical sector is, but it is certainly | |
| 49 | # going to be a factor of 1 MB | |
| 50 | size=$((1 * 1024 * 1024 - 1)) | |
| 51 | ||
| 52 | # qemu-img create rounds size up to BDRV_SECTOR_SIZE | |
| 53 | _make_test_img $size | |
| 54 | $QEMU_IMG map --output=json --image-opts \ | |
| 55 | "driver=$IMGFMT,file.driver=file,file.filename=$TEST_IMG,cache.direct=on" \ | |
| 56 | | _filter_qemu_img_map | |
| 57 | ||
| 58 | # so we resize it and check again | |
| 59 | truncate --size=$size "$TEST_IMG" | |
| 60 | $QEMU_IMG map --output=json --image-opts \ | |
| 61 | "driver=$IMGFMT,file.driver=file,file.filename=$TEST_IMG,cache.direct=on" \ | |
| 62 | | _filter_qemu_img_map | |
| 63 | ||
| 64 | # qemu-io with O_DIRECT always writes whole physical sectors. Again, | |
| 65 | # we do not know how large a physical sector is, so we just start | |
| 66 | # writing from a 64 kB boundary, which should always be aligned. | |
| 67 | offset=$((1 * 1024 * 1024 - 64 * 1024)) | |
| 68 | $QEMU_IO -c "w $offset $((size - offset))" "$TEST_IMG" | _filter_qemu_io | |
| 69 | $QEMU_IMG map --output=json --image-opts \ | |
| 70 | "driver=$IMGFMT,file.driver=file,file.filename=$TEST_IMG,cache.direct=on" \ | |
| 71 | | _filter_qemu_img_map | |
| 72 | ||
| 73 | # Resize it and check again -- contrary to 221, we may not get partial | |
| 74 | # sectors here, so there should be only two areas (one zero, one | |
| 75 | # data). | |
| 76 | truncate --size=$size "$TEST_IMG" | |
| 77 | $QEMU_IMG map --output=json --image-opts \ | |
| 78 | "driver=$IMGFMT,file.driver=file,file.filename=$TEST_IMG,cache.direct=on" \ | |
| 79 | | _filter_qemu_img_map | |
| 80 | ||
| 81 | # success, all done | |
| 82 | echo '*** done' | |
| 83 | rm -f $seq.full | |
| 84 | status=0 |