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Re: [Qemu-devel] [PATCH] raw-posix.c: Make GetBSDPath() handle caching o
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-devel] [PATCH] raw-posix.c: Make GetBSDPath() handle caching options |
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Date: |
Tue, 28 Jul 2015 11:18:32 +0100 |
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User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Mon, Jul 27, 2015 at 12:28:03PM -0400, Programmingkid wrote:
> Add support for caching options that can be specified from
> the command line.
Please squash this into the commit message when merging:
The CD-ROM raw char device bypasses the host page cache and therefore
has alignment requirements. Alignment probing is necessary so only use
the raw char device if BDRV_O_NOCACHE is set.
This patch fixes -cdrom /dev/cdrom on Mac OS X hosts, where bdrv_read()
used to fail due to misaligned requests during image format probing.
Reviewed-by: Stefan Hajnoczi <address@hidden>
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