Re: [Cluster-devel] RFC: use the iomap writepage path in gfs2

2019-07-08 Thread Andreas Gruenbacher
On Mon, 8 Jul 2019 at 18:04, Christoph Hellwig wrote: > On Thu, Jul 04, 2019 at 12:35:41AM +0200, Andreas Gruenbacher wrote: > > Patch "gfs2: implement gfs2_block_zero_range using iomap_zero_range" > > isn't quite ready: the gfs2 iomap operations don't handle IOMAP_ZERO > > correctly so far, and

Re: [Cluster-devel] RFC: use the iomap writepage path in gfs2

2019-07-08 Thread Christoph Hellwig
On Mon, Jul 08, 2019 at 10:01:03AM +1000, Dave Chinner wrote: > Ok, this doesn't look too bad from the iomap perspective, though it > does raise more questions. :) > > gfs2 now has two iopaths, right? One that uses bufferheads for > journalled data, and the other that uses iomap? That seems like

Re: [Cluster-devel] RFC: use the iomap writepage path in gfs2

2019-07-08 Thread Christoph Hellwig
On Thu, Jul 04, 2019 at 12:35:41AM +0200, Andreas Gruenbacher wrote: > Patch "gfs2: implement gfs2_block_zero_range using iomap_zero_range" > isn't quite ready: the gfs2 iomap operations don't handle IOMAP_ZERO > correctly so far, and that needs to be fixed first. What is the issue with

Re: [Cluster-devel] RFC: use the iomap writepage path in gfs2

2019-07-07 Thread Dave Chinner
On Mon, Jul 01, 2019 at 11:54:24PM +0200, Christoph Hellwig wrote: > Hi all, > > in this straight from the jetplane edition I present the series to > convert gfs2 to full iomap usage for the ordered and writeback mode, > that is we use iomap_page everywhere and entirely get rid of > buffer_heads

Re: [Cluster-devel] RFC: use the iomap writepage path in gfs2

2019-07-03 Thread Andreas Gruenbacher
Hi Christoph, On Mon, 1 Jul 2019 at 23:54, Christoph Hellwig wrote: > Hi all, > > in this straight from the jetplane edition I present the series to > convert gfs2 to full iomap usage for the ordered and writeback mode, > that is we use iomap_page everywhere and entirely get rid of >

[Cluster-devel] RFC: use the iomap writepage path in gfs2

2019-07-01 Thread Christoph Hellwig
Hi all, in this straight from the jetplane edition I present the series to convert gfs2 to full iomap usage for the ordered and writeback mode, that is we use iomap_page everywhere and entirely get rid of buffer_heads in the data path. This has only seen basic testing which ensured neither 4k or