Hello Michael,
"Dipl.-Ing. Michael Niederle":
> I check all files whether they are opened or not before removing them from
> the
> ramdisk-layer. It seems that I must not remove any file within a directory if
> only a single file within that directory is kept open - otherwise I end up
> with
> an empty directory (seen by aufs - in the layers everything looks fine). This
> is
> definitely *not* a problem with whiteout-files.)
>
> I used the "udb=reval" and "udb=inotify" options - but without success. And
> worse, sometimes I (logically) lose files even when I make all those checks.
Which is your case?
- /aufs = /rw_ram + /ro_ext2_img + /rr_squash
- cp /rw_ram/fileA /ro_ext2_img (bypassing aufs)
- rm /rw_ram/fileA (bypassing aufs)
- "ls /aufs" does NOT show fileA
or
- /aufs = /rw_ram + /ro_ext2_img + /rr_squash
- dir = opendir("/aufs")
- readdir(dir)
- cp /rw_ram/fileA /ro_ext2_img (bypassing aufs)
- rm /rw_ram/fileA (bypassing aufs)
- readdir(dir) does NOT show fileA
In the former case, I guess udba=inotify will solve the problem (you
should use the latest aufs which is updated this Monday).
In the latter, it is a generic feature/specification of unix
filesystem. You need to call rewinddir()
Junjiro Okajima
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