From: Paolo Bonzini <pbonzini@redhat.com>
To: Michael Tokarev <mjt@tls.msk.ru>
Cc: kwolf@redhat.com, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 1/3] Combine bdrv_read and bdrv_write to bdrv_rw
Date: Wed, 29 Feb 2012 16:53:35 +0100 [thread overview]
Message-ID: <4F4E49FF.3080602@redhat.com> (raw)
In-Reply-To: <1330473276-8975-2-git-send-email-mjt@msgid.tls.msk.ru>
Il 29/02/2012 00:54, Michael Tokarev ha scritto:
> -static coroutine_fn int cow_co_write(BlockDriverState *bs, int64_t sector_num,
> - const uint8_t *buf, int nb_sectors)
> +static coroutine_fn int cow_co_rw(BlockDriverState *bs, int64_t sector_num,
> + uint8_t *buf, int nb_sectors, bool is_write)
> {
> int ret;
> BDRVCowState *s = bs->opaque;
> qemu_co_mutex_lock(&s->lock);
> - ret = cow_write(bs, sector_num, buf, nb_sectors);
> + ret = is_write ? cow_write(bs, sector_num, buf, nb_sectors) :
> + cow_read(bs, sector_num, buf, nb_sectors);
> qemu_co_mutex_unlock(&s->lock);
> return ret;
NACK,
the real cleanup here would be to move the lock/unlock inside cow_read
and cow_write.
Paolo
next prev parent reply other threads:[~2012-02-29 15:54 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1330473276-8975-1-git-send-email-mjt@tls.msk.ru>
2012-02-28 23:54 ` [Qemu-devel] [PATCH 1/3] Combine bdrv_read and bdrv_write to bdrv_rw Michael Tokarev
2012-02-29 15:53 ` Paolo Bonzini [this message]
2012-02-29 16:00 ` Michael Tokarev
2012-02-29 16:07 ` Paolo Bonzini
2012-02-29 16:36 ` Michael Tokarev
2012-02-28 23:54 ` [Qemu-devel] [PATCH 2/3] Combine bdrv_aio_readv and bdrv_aio_writev into bdrv_aio_rw_vector Michael Tokarev
2012-02-29 15:54 ` Paolo Bonzini
2012-02-29 16:16 ` Michael Tokarev
2012-02-28 23:54 ` [Qemu-devel] [PATCH 3/3] Combine bdrv_co_readv and bdrv_co_writev into bdrv_co_rw_vector Michael Tokarev
2012-02-29 16:01 ` Paolo Bonzini
2012-02-29 16:12 ` Michael Tokarev
2012-02-29 16:24 ` Paolo Bonzini
2012-02-29 16:45 ` Michael Tokarev
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