mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Naohiro Aota
74e99aebdc
Many test cases use xfs_io -c 'falloc' but forgot to add _require_xfs_io_command "falloc". This will fail the test case if we run the test case on a file system without fallcoate support e.g. F2FS. While we believe that normal fallocate(mode = 0) is always supported on Linux, it is not true. Fallocate is disabled in several implementations of zoned block support for file systems because the pre-allocated region will break the sequential writing rule. Currently, several test cases unconditionally call fallocate(). Let's add _require_xfs_io_command "falloc" to properly check the feature is supported by a testing file system. Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com> Reviewed-by: Eryu Guan <guaneryu@gmail.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
85 lines
2.1 KiB
Bash
Executable File
85 lines
2.1 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2016 Red Hat, inc. All Rights Reserved.
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#
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# FS QA Test 118
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#
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# Test xfs_fsr's handling of 2-extent files with preallocation
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#
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# An error in xfs_swap_extent_forks() incorrectly set up the
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# temporary inode's if_extents pointer to inline, leading to
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# in-memory corruption when the temporary inode was released
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# and torn down; i_itemp and d_ops got overwritten with zeros,
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# which led to an oops in xfs_trans_log_inode down the fput path.
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#
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# Fixed upstream by proper nextents counting using
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# ip->i_df.if_bytes not ip->i_d.di_nextents in xfs_swap_extent_forks
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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 $seqres.full
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_supported_fs xfs
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_require_scratch
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_require_command "$XFS_FSR_PROG" "xfs_fsr"
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_require_xfs_io_command "falloc"
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# 50M
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_scratch_mkfs_sized $((50 * 1024 * 1024)) >> $seqres.full 2>&1
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_scratch_mount
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echo "Silence is golden"
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# Fragment freespace
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# The aim is to create a fragmented two-extent file *with* prealloc
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# so make the free holes big enough that a 2-extent file will have
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# preallocation added. Let's say... 64k free chunks.
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$XFS_IO_PROG -fs -c "falloc 0 40000k" $SCRATCH_MNT/fill >> $seqres.full 2>&1
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sync
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dd if=/dev/zero of=$SCRATCH_MNT/remainder oflag=direct > /dev/null 2>&1
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# Free up a bunch of 64k chunks
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for i in `seq 0 68 40000`; do
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$XFS_IO_PROG -fs -c "unresvsp ${i}k 64k" $SCRATCH_MNT/fill
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done
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# Create 2-extent files w/ preallocation (via extending writes)
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for I in `seq 1 64`; do
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$XFS_IO_PROG -f -c "pwrite 0 64k" $SCRATCH_MNT/newfile-$I \
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>> $seqres.full 2>&1
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$XFS_IO_PROG -f -c "pwrite 64k 64k" $SCRATCH_MNT/newfile-$I \
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>> $seqres.full 2>&1
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done
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# sync to get extents on disk so fsr sees them
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sync
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# Free up some space for defragmentation temp file
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rm -f $SCRATCH_MNT/fill
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$XFS_FSR_PROG -vd $SCRATCH_MNT/newfile* >> $seqres.full 2>&1
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# success, all done
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status=0
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exit
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