On Fri, Jan 29, 2021 at 11:32:06AM -0500, Josef Bacik wrote: > On 1/22/21 3:46 PM, Omar Sandoval wrote: > > From: Omar Sandoval <osandov@xxxxxx> > > > > This series adds an API for reading compressed data on a filesystem > > without decompressing it as well as support for writing compressed data > > directly to the filesystem. As with the previous submissions, I've > > included a man page patch describing the API. I have test cases > > (including fsstress support) and example programs which I'll send up > > [1]. > > > > The main use-case is Btrfs send/receive: currently, when sending data > > from one compressed filesystem to another, the sending side decompresses > > the data and the receiving side recompresses it before writing it out. > > This is wasteful and can be avoided if we can just send and write > > compressed extents. The patches implementing the send/receive support > > will be sent shortly. > > > > Patches 1-3 add the VFS support and UAPI. Patch 4 is a fix that this > > series depends on; it can be merged independently. Patches 5-8 are Btrfs > > prep patches. Patch 9 adds Btrfs encoded read support and patch 10 adds > > Btrfs encoded write support. > > > > These patches are based on Dave Sterba's Btrfs misc-next branch [2], > > which is in turn currently based on v5.11-rc4. > > > > Is everybody OK with this? Al? I would like to go ahead and get this > merged for the next merge window as long as everybody is OK with it, as it's > blocking a fair bit of BTRFS work. Thanks, Ping. Al, Christoph, any thoughts?
