> Patch 0500-block-raw-posix-Try-both-FIEMAP-and-SEEK_HOLE.patch appears to be
> part of a bigger re-write
> of the related code. and is ON TOP of the patches already applied in this bug.
Yep, sorry for not mentioning this. As far as I understand qemu-2.1 package
contains this partially rewritte
> - 501-block-raw-posix-fix-disk-corruption-in-try-fiemap
> - (note - 502-block-raw-posic-use-seek-hole-ahead-of-fiemap (which was
> also needed in utopic) appears to be unneeded here as the code being
> changed has not yet been switched to using try_fiemap)
Actually such a enforces fsy
The second part of the fix (which does not reduce the performance) for
qemu 2.0 (apparently uploading two patches at once is not so easy)
** Patch added: "0502-block-raw-posix-use-seek_hole-ahead-of-fiemap.patch"
https://bugs.launchpad.net/qemu/+bug/1368815/+attachment/4282119/+files/0502-bloc
