Re: [PATCH 06/21] block/backup: drop support for copy_range

2021-05-17 Thread Max Reitz
On 17.05.21 08:44, Vladimir Sementsov-Ogievskiy wrote: copy_range is not a default behavior since 6a30f663d4c0b3c, and it's now available only though x-perf experimantal argument, so it's OK to drop it. Even when backup is used to copy disk to same filesystem, and filesystem supports zero-copy c

[PATCH 06/21] block/backup: drop support for copy_range

2021-05-16 Thread Vladimir Sementsov-Ogievskiy
copy_range is not a default behavior since 6a30f663d4c0b3c, and it's now available only though x-perf experimantal argument, so it's OK to drop it. Even when backup is used to copy disk to same filesystem, and filesystem supports zero-copy copy_range, copy_range is probably not what we want for ba