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From: David Sterba <dsterba@suse.cz>
To: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Cc: linux-btrfs@vger.kernel.org, aneesh.kumar@linux.vnet.ibm.com
Subject: Re: [PATCH 0/6 EARLY RFC] Btrfs: Get rid of whole page I/O.
Date: Mon, 17 Mar 2014 15:55:55 +0100	[thread overview]
Message-ID: <20140317145555.GG29256@twin.jikos.cz> (raw)
In-Reply-To: <1394634033-2528-1-git-send-email-chandan@linux.vnet.ibm.com>

On Wed, Mar 12, 2014 at 07:50:27PM +0530, Chandan Rajendra wrote:
> The patchset has been tested with only a handful of trivial I/O tests i.e. I/O
> on different kinds of files (e.g. files with holes, etc). The tests were run
> on 2k and 4k blocksized instances of Btrfs code (on x86_64) that has initial
> support for mounting a 2k blocksized Btrfs filesystem.

> 3. Compression does not work with 2k blocksize filesystem instance.

I looked at previous postings of this patchset, but haven't found what
are the expected supported block sizes.

I assume powers of two starting with 512b, until 64k.

I'm asking because the compression container would need to take this
into account. (I originally had only >= 4k sizes in mind.)


thanks,
david

  parent reply	other threads:[~2014-03-17 14:55 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-12 14:20 [PATCH 0/6 EARLY RFC] Btrfs: Get rid of whole page I/O Chandan Rajendra
2014-03-12 14:20 ` [PATCH 1/6] Btrfs: subpagesize-blocksize: Get rid of whole page reads Chandan Rajendra
2014-03-19  7:37   ` Liu Bo
2014-03-19 15:50     ` chandan Rajendra
2014-03-12 14:20 ` [PATCH 2/6] Btrfs: subpagesize-blocksize: Get rid of whole page writes Chandan Rajendra
2014-03-12 14:20 ` [PATCH 3/6] Btrfs: subpagesize-blocksize: Work with extents aligned to blocksize Chandan Rajendra
2014-03-12 14:20 ` [PATCH 4/6] Btrfs: subpagesize-blocksize: Define extent_buffer_head Chandan Rajendra
2014-03-12 14:20 ` [PATCH 5/6] Btrfs: subpagesize-blocksize: Hardcode MAX_EXTENT_BUFFERS_PER_PAGE to 2 Chandan Rajendra
2014-03-12 14:20 ` [PATCH 6/6] Btrfs: subpagesize-blocksize: Allow mounting filesystems where sectorsize != PAGE_SIZE Chandan Rajendra
2014-03-17 14:55 ` David Sterba [this message]
2014-03-18  7:18   ` [PATCH 0/6 EARLY RFC] Btrfs: Get rid of whole page I/O chandan
2014-03-19 18:41     ` David Sterba
2014-03-20  3:20       ` Aneesh Kumar K.V
2014-04-03 17:01         ` David Sterba

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