From: Theodore Ts'o <tytso@mit.edu>
To: Matthew Wilcox <matthew@wil.cx>
Cc: Dave Chinner <david@fromorbit.com>,
Matthew Wilcox <matthew.r.wilcox@intel.com>,
linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v3 0/3] Add XIP support to ext4
Date: Thu, 19 Dec 2013 12:18:48 -0500 [thread overview]
Message-ID: <20131219171848.GC9130@thunk.org> (raw)
In-Reply-To: <20131219171201.GD19166@parisc-linux.org>
On Thu, Dec 19, 2013 at 10:12:02AM -0700, Matthew Wilcox wrote:
>
> ... I think it'll actually be ext4_get_block_fault, not _write, and it
> will include code to zero the returned blocks if they're uninitialised.
I assume what you mean here is if we see that the blocks are
uninitialized, we don't need to read from the persistent memory at
all; we can just map in a zeroed page, hopefully one from our stock of
pre-zeroed pages. Yes?
- Ted
next prev parent reply other threads:[~2013-12-19 17:18 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-17 19:18 [PATCH v3 0/3] Add XIP support to ext4 Matthew Wilcox
2013-12-17 19:18 ` [PATCH v3 1/3] Fix XIP fault vs truncate race Matthew Wilcox
2013-12-17 19:18 ` [PATCH v3 2/3] xip: Add xip_zero_page_range Matthew Wilcox
2013-12-17 19:18 ` [PATCH v3 3/3] ext4: Add XIP functionality Matthew Wilcox
2013-12-17 22:30 ` [PATCH v3 0/3] Add XIP support to ext4 Dave Chinner
2013-12-18 2:31 ` Matthew Wilcox
2013-12-18 5:01 ` Theodore Ts'o
2013-12-18 14:27 ` Matthew Wilcox
2013-12-19 2:07 ` Theodore Ts'o
2013-12-19 4:12 ` Matthew Wilcox
2013-12-19 4:37 ` Dave Chinner
2013-12-19 5:43 ` Theodore Ts'o
2013-12-19 15:20 ` Matthew Wilcox
2013-12-19 16:17 ` Theodore Ts'o
2013-12-19 17:12 ` Matthew Wilcox
2013-12-19 17:18 ` Theodore Ts'o [this message]
2013-12-20 18:17 ` Matthew Wilcox
2013-12-20 19:34 ` Theodore Ts'o
2013-12-20 20:11 ` Matthew Wilcox
2013-12-23 3:36 ` Dave Chinner
2013-12-23 3:45 ` Matthew Wilcox
2013-12-23 4:32 ` Dave Chinner
2013-12-23 6:56 ` Dave Chinner
2013-12-23 14:51 ` Theodore Ts'o
2013-12-23 3:16 ` Dave Chinner
2013-12-24 16:27 ` Matthew Wilcox
2013-12-18 12:33 ` Dave Chinner
2013-12-18 15:22 ` Matthew Wilcox
2013-12-19 0:48 ` Dave Chinner
2013-12-19 1:05 ` Matthew Wilcox
2013-12-19 1:58 ` Dave Chinner
2013-12-19 15:32 ` Matthew Wilcox
2013-12-19 23:46 ` Dave Chinner
2013-12-20 16:45 ` Matthew Wilcox
2013-12-23 4:14 ` Dave Chinner
2013-12-18 18:13 ` Eric Sandeen
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