| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2014 Jaegeuk Kim. All Rights Reserved. |
| # |
| # FS QA Test No. generic/393 |
| # |
| # Test some small truncations to check inline_data and its cached data are |
| # truncated correctly at the same time. |
| # |
| # The inline_data feature was introduced in ext4 and f2fs as follows. |
| # ext4 : http://lwn.net/Articles/468678/ |
| # f2fs : http://lwn.net/Articles/573408/ |
| # |
| # The basic idea is embedding small-sized file's data into relatively large |
| # inode space. |
| # In ext4, up to 132 bytes of data can be stored in 256 bytes-sized inode. |
| # In f2fs, up to 3.4KB of data can be embedded into 4KB-sized inode block. |
| # |
| . ./common/preamble |
| _begin_fstest auto quick rw |
| |
| # Import common functions. |
| . ./common/filter |
| |
| _supported_fs generic |
| _require_scratch |
| |
| testfile=$SCRATCH_MNT/testfile |
| OD_CMD="od -A x -t x1z" |
| |
| _scratch_mkfs > /dev/null 2>&1 |
| _scratch_mount |
| |
| # 1. make a file containing inline_data. |
| # 2. "truncated 0" is to check cached page #0 was truncated entirely. |
| # 3. "truncated 50" is to check inline_data was truncated within its inode. |
| $XFS_IO_PROG -t -f \ |
| -c "pwrite -S 0x58 0 40" `# write |XXXXXXXXXXXXXXXXXXXXXXXX|` \ |
| -c "fsync" \ |
| -c "truncate 0" `# truncate | |` \ |
| -c "truncate 50" `# truncate | |` \ |
| $testfile | _filter_xfs_io |
| |
| echo "= truncate inline_data after #0 page was truncated entirely =" |
| $OD_CMD $testfile |
| _scratch_cycle_mount |
| $OD_CMD $testfile |
| rm $testfile |
| |
| # 1. make a file containing inline_data. |
| # 2. "truncated 0" is to check cached page #0 was truncated entirely. |
| # 3. "truncated 4096" is to check inline_data was dismissed and truncated. |
| $XFS_IO_PROG -t -f \ |
| -c "pwrite -S 0x58 0 40" `# write |XXXXXXXXXXXXXXXXXXXXXXXX|` \ |
| -c "fsync" \ |
| -c "truncate 0" `# truncate | |` \ |
| -c "truncate 4096" `# truncate | |` \ |
| $testfile | _filter_xfs_io |
| |
| echo "= truncate dismissed inline_data after #0 page was truncated entirely =" |
| $OD_CMD $testfile |
| _scratch_cycle_mount |
| $OD_CMD $testfile |
| rm $testfile |
| |
| # 1. make a file containing inline_data. |
| # 2. "truncated 4" is to check cached page #0 was truncated partially. |
| # 3. "truncated 50" is to check inline_data was truncated within its inode. |
| $XFS_IO_PROG -t -f \ |
| -c "pwrite -S 0x58 0 40" `# write |XXXXXXXXXXXXXXXXXXXXXXXX|` \ |
| -c "fsync" \ |
| -c "truncate 4" `# truncate |XXXX |` \ |
| -c "truncate 50" `# truncate |XXXX |` \ |
| $testfile | _filter_xfs_io |
| |
| echo "= truncate inline_data after #0 page was truncated partially =" |
| $OD_CMD $testfile |
| _scratch_cycle_mount |
| $OD_CMD $testfile |
| rm $testfile |
| |
| # 1. make a file containing inline_data. |
| # 2. "truncated 4" is to check cached page #0 was truncated partially. |
| # 3. "truncated 4096" is to check inline_data was dismissed and truncated. |
| $XFS_IO_PROG -t -f \ |
| -c "pwrite -S 0x58 0 40" `# write |XXXXXXXXXXXXXXXXXXXXXXXX|` \ |
| -c "fsync" \ |
| -c "truncate 4" `# truncate |XXXX |` \ |
| -c "truncate 4096" `# truncate |XXXX |` \ |
| $testfile | _filter_xfs_io |
| |
| echo "= truncate dismissed inline_data after #0 page was truncated partially =" |
| $OD_CMD $testfile |
| _scratch_cycle_mount |
| $OD_CMD $testfile |
| rm $testfile |
| |
| status=0 |
| exit |