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| From: | Paolo Bonzini |
| Subject: | Re: [Qemu-devel] [RFC PATCH 04/17] qed: implement bdrv_aio_discard |
| Date: | Fri, 09 Mar 2012 18:53:24 +0100 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:10.0.1) Gecko/20120216 Thunderbird/10.0.1 |
Il 09/03/2012 17:31, Kevin Wolf ha scritto: >> > Move the bdrv_co_write_zeroes operation to bdrv_aio_discard, so that >> > the ugly coroutine loop can be eliminated. >> > >> > Signed-off-by: Paolo Bonzini <address@hidden> > But the logically correct (and therefore easier to understand) way would > be to let bdrv_aio_discard call bdrv_co_write_zeroes instead of the > other way round. Mapping write_zeroes to discard is only correct as long > as QED implements discard as zero writes instead of really discarding data. Well, bdrv_co_write_zeroes will disappear soon. Paolo
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