4 # Basic unwritten extent sanity checks
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7 # Copyright (c) 2009 Red Hat, Inc. All Rights Reserved.
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14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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25 owner=sandeen@sandeen.net
28 echo "QA output created by $seq"
39 status=1 # failure is the default!
40 trap "_cleanup; exit \$status" 0 1 2 3 15
42 # get standard environment, filters and checks
46 # real QA test starts here
47 # generic, but xfs_io's fallocate must work
49 # only Linux supports fallocate
52 [ -n "$XFS_IO_PROG" ] || _notrun "xfs_io executable not found"
57 _require_xfs_io_falloc
61 # Super-trivial; preallocate a region and read it; get 0s.
62 echo "=== falloc & read ==="
65 -c 'pread -v 0 4096' \
66 $TEST_DIR/ouch | _filter_xfs_io_unique
69 # Preallocate a chunk, write 1 byte, read it all back.
70 # Should get no stale data. Early ext4 bug.
72 echo "=== falloc, write beginning, read ==="
77 $TEST_DIR/ouch | _filter_xfs_io_unique
80 # Same but write in the middle of the region
81 echo "=== falloc, write middle, read ==="
86 $TEST_DIR/ouch | _filter_xfs_io_unique
89 # Same but write the end of the region
90 echo "=== falloc, write end, read ==="
95 $TEST_DIR/ouch | _filter_xfs_io_unique
98 # Reported by IBM on ext4.
100 # Fixed by commit a41f20716975910d9beb90b7efc61107901492b8
102 # The file was previously preallocated, and then initialized the middle of
103 # the preallocation area using Direct IO write, then overwrite part of
104 # initialized area. Later after truncate the file (to the middle of the
105 # initialized data), the initialized data *before* the new file size was
106 # gone after remount the filesystem.
108 echo "=== falloc, write, sync, truncate, read ==="
109 # Allocate, write, sync, truncate (buffered)
111 -c 'falloc 0x0 0x65C00' \
112 -c 'pwrite -S 0xAA 0x12000 0x10000' \
114 -c 'truncate 0x16000' \
115 $TEST_DIR/ouch | _filter_xfs_io_unique
117 # now do a direct read and see what's on-disk
118 $XFS_IO_PROG -F -f -d \
119 -c 'pread -v 0 0x16000' \
120 $TEST_DIR/ouch | _filter_xfs_io_unique
124 # Reported by Ted Ts'o on linux-ext4, 12/31/2009
125 # double-allocation on ext4 when fallocating over delalloc blocks
126 # Regression due to d21cd8f163ac44b15c465aab7306db931c606908
128 echo "=== delalloc write 16k; fallocate same range ==="
129 # delalloc write 16k, fallocate same range.
130 # Should get caught on fsck when we're done.
136 $TEST_DIR/ouch2 | _filter_xfs_io_unique