Re: [PATCH 31/33] iomap: add support for sub-pagesize buffered I/O without buffer heads

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On Tue, May 15, 2018 at 08:47:25AM -0500, Goldwyn Rodrigues wrote:
> On 05/15/2018 02:26 AM, Christoph Hellwig wrote:
> > On Mon, May 14, 2018 at 11:00:08AM -0500, Goldwyn Rodrigues wrote:
> >>> +	if (iop || i_blocksize(inode) == PAGE_SIZE)
> >>> +		return iop;
> >>
> >> Why is this an equal comparison operator? Shouldn't this be >= to
> >> include filesystem blocksize greater than PAGE_SIZE?
> > 
> > Which filesystems would that be that have a tested and working PAGE_SIZE
> > support using iomap?
> 
> Oh, I assumed iomap would work for filesystems with block size greater
> than PAGE_SIZE.

It will eventually, but first we've got to remove the iomap
infrastructure and filesystem dependencies on bufferheads....

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx




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