btrfs: user space tool to force compression

2015-10-02 Thread Matwey V. Kornilov
Hello, Is there a way (and appropriate user space tool) to force compression of existing file? I mean there was directory with some content and then I set compression attribute (property) to it. How to force data recompression? -- To unsubscribe from this list: send the line "unsubscribe linux-bt

Re: btrfs: obtain block checksums from user space

2015-09-24 Thread Matwey V. Kornilov
2015-09-24 21:35 GMT+03:00 Austin S Hemmelgarn : > On 2015-09-24 14:06, Matwey V. Kornilov wrote: >> >> >> Hello, >> >> I would like to read the list of the checksums for the specific file >> stored onto btrfs filesystem. I think I could use the checksums in

btrfs: obtain block checksums from user space

2015-09-24 Thread Matwey V. Kornilov
Hello, I would like to read the list of the checksums for the specific file stored onto btrfs filesystem. I think I could use the checksums in the manner like rsync does, but safe both CPU (because csums are already calculated for the file) and I/O (because I don't need to reread all the file fro