[systemd-devel] [PATCH v2] readahead: use BTRFS_IOC_DEFRAG_RANGE

[Timofey Titovets]

Zbyszek, thanks for comment, i will work on fixing what you say and
resend patch.

>> Just completed TODO:
>> * readahead: use BTRFS_IOC_DEFRAG_RANGE instead of BTRFS_IOC_DEFRAG
>
> This is still not an explanation. What is the difference between the
> two?

I can't explain it, because no i add this todo in TODO list (recursively todo%)
>> -  - readahead: use BTRFS_IOC_DEFRAG_RANGE instead of BTRFS_IOC_DEFRAG ioctl, with START_IO
But as i understand start_io option force write data, without
buffering in memory, to the disk.
may be it have a sacral sense, i ask for comments in btrfs list for
explaration and add explanation to the v3

-- 
Best regards,
Timofey.