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Re: [Qemu-block] [PATCH 0/6] block: Fix permissions after ro/rw reopen
From: |
Kevin Wolf |
Subject: |
Re: [Qemu-block] [PATCH 0/6] block: Fix permissions after ro/rw reopen |
Date: |
Wed, 20 Sep 2017 12:33:41 +0200 |
User-agent: |
Mutt/1.8.3 (2017-05-23) |
Am 15.09.2017 um 12:10 hat Kevin Wolf geschrieben:
> bdrv_reopen() can switch nodes between read-only and read-write modes.
> This has implications for the required permissions on their child nodes.
> For example, a qcow2 node requests write permissions on bs->file only if
> it is writable itself.
>
> This means that during bdrv_reopen(), the permissions need to be
> recalculated in order to prevent failures where the bs->file
> permissions don't match its actual read-only state (e.g. bs->file is a
> read-write node, but the permission still enforces read-only access).
Applied to the block branch.
Kevin
- Re: [Qemu-block] [Qemu-devel] [PATCH 6/6] block: Fix permissions after bdrv_reopen(), (continued)
Re: [Qemu-block] [PATCH 0/6] block: Fix permissions after ro/rw reopen,
Kevin Wolf <=