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4 Commits

Author SHA1 Message Date
Jakob Unterwurzacher 69d88505fd go mod: declare module version v2 
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/%
 2021-08-23 15:05:15 +02:00
Jakob Unterwurzacher 0e37fbe042 tests: TestFileHoleCopy: accept +-4kB 
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
 2021-05-29 16:56:20 +02:00
Jakob Unterwurzacher 738a9e006a fusefrontend: rewrite Lseek SEEK_DATA / SEEK_HOLE 
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
 2021-05-29 16:05:36 +02:00
Jakob Unterwurzacher 9695f0e524 tests: add TestFileHoleCopy 
Currently fails.
 2021-05-26 13:17:56 +02:00