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This problem potentially causes extra disk usage for sparse files
but is otherwise harmless.
Skip the test for now.
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Our git version is v2+ for some time now, but go.mod
still declared v1. Hopefully making both match makes
https://pkg.go.dev/github.com/rfjakob/gocryptfs/v2 work.
All the import paths have been fixed like this:
find . -name \*.go | xargs sed -i s%github.com/rfjakob/gocryptfs/%github.com/rfjakob/gocryptfs/v2/%
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Failure looked like this:
--- FAIL: TestFileHoleCopy (3.73s)
--- FAIL: TestFileHoleCopy/k81 (0.04s)
file_holes_test.go:93: size changed: st0.Blocks=88 st2.Blocks=96
file_holes_test.go:147: aborting further subtests
$ findholes TestFileHoleCopy.k81.1
0 data
36864 hole
45056 data
50434 hole
50434 eof
$ findholes TestFileHoleCopy.k81.2
0 data
36864 hole
45056 data
50434 hole
50434 eof
$ filefrag -v TestFileHoleCopy.k81.1
Filesystem type is: ef53
File size of TestFileHoleCopy.k81.1 is 50434 (13 blocks of 4096 bytes)
ext: logical_offset: physical_offset: length: expected: flags:
0: 0.. 2: 23702311.. 23702313: 3:
1: 3.. 8: 20389855.. 20389860: 6: 23702314:
2: 11.. 12: 23702314.. 23702315: 2: 20389863: last,eof
TestFileHoleCopy.k81.1: 3 extents found
$ filefrag -v TestFileHoleCopy.k81.2
Filesystem type is: ef53
File size of TestFileHoleCopy.k81.2 is 50434 (13 blocks of 4096 bytes)
ext: logical_offset: physical_offset: length: expected: flags:
0: 0.. 2: 20389861.. 20389863: 3:
1: 3.. 4: 23702316.. 23702317: 2: 20389864:
2: 5.. 6: 20389864.. 20389865: 2: 23702318:
3: 7.. 8: 23702318.. 23702319: 2: 20389866:
4: 11.. 12: 23702320.. 23702321: 2: last,eof
TestFileHoleCopy.k81.2: 4 extents found
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In response to the discussion of the xfstests mailing list [1],
I looked at the Lseek implementation, which was naive and
did not handle all cases correctly.
The new implementation aligns the returned values to 4096 bytes
as most callers expect.
A lot of tests are added to verify that we handle all
cases correctly now.
[1]: https://www.spinics.net/lists/fstests/msg16554.html
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Currently fails.
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