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Re: [Qemu-devel] [PATCH v2 0/3] coroutinization of flush and discard (sp
From: |
Kevin Wolf |
Subject: |
Re: [Qemu-devel] [PATCH v2 0/3] coroutinization of flush and discard (split out of NBD series) |
Date: |
Mon, 17 Oct 2011 12:57:57 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:7.0) Gecko/20110927 Thunderbird/7.0 |
Am 17.10.2011 12:32, schrieb Paolo Bonzini:
> This series, applying on top of block branch, enables drivers to use
> coroutines for flush and discard. I kept aio_discard after discussing
> with Kevin since it should be useful not only for raw-posix-aio, but also
> for the userspace iSCSI backend (and in general for backends relying on
> an external library that is designed around aio).
>
> BTW, with this patch we get "for free" the invariant that bdrv_aio_*
> never returns a NULL acb (Stefan's patches already got to that point
> for read/write, of course).
>
> v1->v2:
> add bdrv_co_flush and bdrv_co_discard entry points
>
> Paolo Bonzini (2):
> block: unify flush implementations
> block: add bdrv_co_discard and bdrv_aio_discard support
>
> Stefan Hajnoczi (1):
> block: drop redundant bdrv_flush implementation
>
> block.c | 258
> +++++++++++++++++++++++++++++++++--------------------
> block.h | 5 +
> block/blkdebug.c | 6 --
> block/blkverify.c | 9 --
> block/qcow.c | 6 --
> block/qcow2.c | 19 ----
> block/qed.c | 6 --
> block/raw-posix.c | 18 ----
> block/raw.c | 23 ++---
> block_int.h | 10 ++-
> trace-events | 1 +
> 11 files changed, 184 insertions(+), 177 deletions(-)
>
Thanks, applied all to the block branch.
Kevin