Miklos Szeredi <mik...@szeredi.hu> wrote:

> > Tentative Tested-by from me unless I can break it.
> 
> Thanks for testing.

Tested-by retracted temporarily.  There's a bug in rename handling.  If you
clone:

        http://git.infradead.org/users/dhowells/unionmount-testsuite.git

and check out the switch-to-python branch and do:

        ./run --no rename-mass

then this works with no unioning used, but if you do:

        ./run --ov rename-mass

to run it on overlayfs, then the following occurs:

        [root@andromeda union-testsuite]# ./run --ov rename-mass
        ***
        *** ./run --ov --ts=0 rename-mass
        ***
        TEST rename-mass.py:15: Mass rename sequential files into each other's 
vacated name slots
         ./run --rename /mnt/a/foo103 /mnt/a/foo104
         ./run --rename /mnt/a/foo102 /mnt/a/foo103
         ./run --rename /mnt/a/foo101 /mnt/a/foo102
         ./run --rename /mnt/a/foo100 /mnt/a/foo101
         ./run --rename /mnt/a/foo104 /mnt/a/foo105
        /mnt/a/foo104: File unexpectedly found

strace shows:

        rename("/mnt/a/foo104", "/mnt/a/foo105") = 0
        lstat("/mnt/a/foo104", {st_mode=S_IFREG|0644, st_size=12, ...}) = 0

which shouldn't happen.

The kernel is 17eb601eb5dbc8a2e200872380c03400813d4f1a from overlayfs.v22.

David
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