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From: | Juan Quintela |
Subject: | Re: [Qemu-devel] [PATCH v9 08/56] Add qemu_get_buffer_in_place to avoid copies some of the time |
Date: | Mon, 09 Nov 2015 10:25:14 +0100 |
User-agent: | Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) |
"Dr. David Alan Gilbert (git)" <address@hidden> wrote: > From: "Dr. David Alan Gilbert" <address@hidden> > > qemu_get_buffer always copies the data it reads to a users buffer, > however in many cases the file buffer inside qemu_file could be given > back to the caller, avoiding the copy. This isn't always possible > depending on the size and alignment of the data. > > Thus 'qemu_get_buffer_in_place' either copies the data to a supplied > buffer or updates a pointer to the internal buffer if convenient. > > Signed-off-by: Dr. David Alan Gilbert <address@hidden> Reviewed-by: Juan Quintela <address@hidden>
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