From: Paolo Bonzini <pbonzini@redhat.com>
To: jcody@redhat.com
Cc: kwolf@redhat.com, supriyak@linux.vnet.ibm.com, eblake@redhat.com,
qemu-devel@nongnu.org, stefanha@gmail.com
Subject: Re: [Qemu-devel] [PATCH v2 06/16] block: do not parse BDRV_O_CACHE_WB in raw block drivers
Date: Fri, 14 Sep 2012 08:51:25 +0200 [thread overview]
Message-ID: <5052D3ED.3000706@redhat.com> (raw)
In-Reply-To: <5052540F.5050501@redhat.com>
Il 13/09/2012 23:45, Jeff Cody ha scritto:
> While there are more changes this way, I think it cleans up the code a
> bit. The advantage is that bs->open_flags actually reflects the open
> flags that are currently in use. One disadvantage I see is that it
> seems a bit odd to have BDRV_O_CACHE_WCE cleared and BDRV_O_CACHE_WB
> set, until you think about them being intended for different layers.
It's more weird to see BDRV_O_CACHE_WCE set and BDRV_O_CACHE_WB cleared. :)
> Maybe that is part of the underlying problem - there is one open_flags
> variable in the BDS, that has some flags intended for all layers in the
> block stack, and some flags specific to a layer.
Yes, that's true.
Paolo
next prev parent reply other threads:[~2012-09-14 6:51 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-13 15:49 [Qemu-devel] [PATCH v2 00/16] block: bdrv_reopen() patches Jeff Cody
2012-09-13 15:49 ` [Qemu-devel] [PATCH v2 01/16] block: correctly set the keep_read_only flag Jeff Cody
2012-09-13 15:49 ` [Qemu-devel] [PATCH v2 02/16] block: make bdrv_set_enable_write_cache() modify open_flags Jeff Cody
2012-09-13 15:49 ` [Qemu-devel] [PATCH v2 03/16] block: Framework for reopening files safely Jeff Cody
2012-09-13 16:20 ` Paolo Bonzini
2012-09-13 20:35 ` Paolo Bonzini
2012-09-13 20:51 ` Jeff Cody
2012-09-13 15:49 ` [Qemu-devel] [PATCH v2 04/16] block: move aio initialization into a helper function Jeff Cody
2012-09-13 15:49 ` [Qemu-devel] [PATCH v2 05/16] block: move open flag parsing in raw block drivers to helper functions Jeff Cody
2012-09-13 15:49 ` [Qemu-devel] [PATCH v2 06/16] block: do not parse BDRV_O_CACHE_WB in raw block drivers Jeff Cody
2012-09-13 16:12 ` Paolo Bonzini
2012-09-13 17:17 ` Jeff Cody
2012-09-13 18:56 ` Paolo Bonzini
2012-09-13 19:04 ` Jeff Cody
2012-09-13 19:44 ` Paolo Bonzini
2012-09-13 20:29 ` Paolo Bonzini
2012-09-13 21:45 ` Jeff Cody
2012-09-14 6:51 ` Paolo Bonzini [this message]
2012-09-14 7:54 ` Kevin Wolf
2012-09-14 7:27 ` Kevin Wolf
2012-09-14 7:50 ` Paolo Bonzini
2012-09-14 7:55 ` Kevin Wolf
2012-09-14 7:55 ` Paolo Bonzini
2012-09-13 15:49 ` [Qemu-devel] [PATCH v2 07/16] block: move allocating aligned_buf into a helper function in raw_posix.c Jeff Cody
2012-09-13 17:29 ` Eric Blake
2012-09-13 15:49 ` [Qemu-devel] [PATCH v2 08/16] block: raw-posix image file reopen Jeff Cody
2012-09-13 16:02 ` Paolo Bonzini
2012-09-13 16:57 ` Jeff Cody
2012-09-14 7:32 ` Kevin Wolf
2012-09-13 15:49 ` [Qemu-devel] [PATCH v2 09/16] block: raw " Jeff Cody
2012-09-13 16:05 ` Paolo Bonzini
2012-09-13 17:02 ` Jeff Cody
2012-09-13 18:53 ` Paolo Bonzini
2012-09-13 19:17 ` Jeff Cody
2012-09-13 15:49 ` [Qemu-devel] [PATCH v2 10/16] block: qed " Jeff Cody
2012-09-13 15:49 ` [Qemu-devel] [PATCH v2 11/16] block: qcow2 " Jeff Cody
2012-09-13 15:49 ` [Qemu-devel] [PATCH v2 12/16] block: qcow " Jeff Cody
2012-09-13 15:49 ` [Qemu-devel] [PATCH v2 13/16] block: vmdk " Jeff Cody
2012-09-13 15:49 ` [Qemu-devel] [PATCH v2 14/16] block: raw-win32 driver reopen support Jeff Cody
2012-09-13 15:49 ` [Qemu-devel] [PATCH v2 15/16] block: convert bdrv_commit() to use bdrv_reopen() Jeff Cody
2012-09-13 15:49 ` [Qemu-devel] [PATCH v2 16/16] block: remove keep_read_only flag from BlockDriverState struct Jeff Cody
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