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https://github.com/linux-apfs/apfstests.git
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Lukas Czerner
a2a1fc679e
Currently many tests and other functions uses it's own way to get block size of the file system. Introduce get_block_size(), a generic way to get block size of mounted file system and use that instead. Signed-off-by: Lukas Czerner <lczerner@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
71 lines
2.1 KiB
Bash
Executable File
71 lines
2.1 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 308
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#
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# Regression test for commit:
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# f17722f ext4: Fix max file size and logical block counting of extent format file
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2013 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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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 $testfile
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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testfile=$TEST_DIR/testfile.$seq
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# real QA test starts here
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_supported_fs generic
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_supported_os Linux
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_require_test
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rm -f $seqres.full
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echo "Silence is golden"
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block_size=`get_block_size $TEST_DIR`
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# On unpatched ext4, if an extent exists which includes the block right
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# before the maximum file offset, and the block for the maximum file offset
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# is written, the kernel panics
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# On patched ext4, the write would get EFBIG since we lower s_maxbytes by
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# one fs block
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# Create a sparse file with an extent lays at one block before old s_maxbytes
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offset=$(((2**32 - 2) * $block_size))
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$XFS_IO_PROG -f -c "pwrite $offset $block_size" -c fsync $testfile >$seqres.full 2>&1
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# Write to the block after the extent just created
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offset=$(((2**32 - 1) * $block_size))
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$XFS_IO_PROG -f -c "pwrite $offset $block_size" -c fsync $testfile >>$seqres.full 2>&1
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# Got here without hitting BUG_ON(), test passed
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status=0
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exit
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