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Re: [Qemu-devel] [PATCH v2 21/21] qcow2: Gather clusters in a looping lo
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH v2 21/21] qcow2: Gather clusters in a looping loop |
Date: |
Wed, 27 Mar 2013 11:27:53 +0100 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Tue, Mar 26, 2013 at 05:50:13PM +0100, Kevin Wolf wrote:
> @@ -793,6 +793,13 @@ static int handle_dependencies(BlockDriverState *bs,
> uint64_t guest_offset,
> bytes = 0;
> }
>
> + /* Stop if already an l2meta exists. We would have to consider
> + * locks held by it (l2_writeback_lock) and set m->next etc. */
l2_writeback_lock does not exist (yet).
> + if (bytes == 0 && *m) {
> + *cur_bytes = 0;
> + return 0;
> + }
- [Qemu-devel] [PATCH v2 12/21] qcow2: Clean up handle_alloc(), (continued)
- [Qemu-devel] [PATCH v2 12/21] qcow2: Clean up handle_alloc(), Kevin Wolf, 2013/03/26
- [Qemu-devel] [PATCH v2 15/21] qcow2: handle_copied(): Get rid of keep_clusters parameter, Kevin Wolf, 2013/03/26
- [Qemu-devel] [PATCH v2 13/21] qcow2: Factor out handle_copied(), Kevin Wolf, 2013/03/26
- [Qemu-devel] [PATCH v2 14/21] qcow2: handle_copied(): Get rid of nb_clusters parameter, Kevin Wolf, 2013/03/26
- [Qemu-devel] [PATCH v2 16/21] qcow2: handle_copied(): Implement non-zero host_offset, Kevin Wolf, 2013/03/26
- [Qemu-devel] [PATCH v2 17/21] qcow2: Prepare handle_alloc/copied() for byte granularity, Kevin Wolf, 2013/03/26
- [Qemu-devel] [PATCH v2 11/21] qcow2: Finalise interface of handle_alloc(), Kevin Wolf, 2013/03/26
- [Qemu-devel] [PATCH v2 18/21] qcow2: Use byte granularity in qcow2_alloc_cluster_offset(), Kevin Wolf, 2013/03/26
- [Qemu-devel] [PATCH v2 19/21] qcow2: Allow requests with multiple l2metas, Kevin Wolf, 2013/03/26
- [Qemu-devel] [PATCH v2 21/21] qcow2: Gather clusters in a looping loop, Kevin Wolf, 2013/03/26
- Re: [Qemu-devel] [PATCH v2 21/21] qcow2: Gather clusters in a looping loop,
Stefan Hajnoczi <=
- [Qemu-devel] [PATCH v2 20/21] qcow2: Move cluster gathering to a non-looping loop, Kevin Wolf, 2013/03/26
- Re: [Qemu-devel] [PATCH v2 00/21] qcow2: Rework cluster allocation even more, Stefan Hajnoczi, 2013/03/27
- Re: [Qemu-devel] [PATCH v2 00/21] qcow2: Rework cluster allocation even more, Stefan Hajnoczi, 2013/03/27