[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH v4 6/6] qemu-io: Add 'write -z -u' to test MAY_U
From: |
Max Reitz |
Subject: |
Re: [Qemu-devel] [PATCH v4 6/6] qemu-io: Add 'write -z -u' to test MAY_UNMAP flag |
Date: |
Fri, 6 May 2016 18:11:03 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.0 |
On 05.05.2016 05:42, Eric Blake wrote:
> Make it easier to control whether the BDRV_REQ_MAY_UNMAP flag
> can be passed through a write_zeroes command, by adding the '-u'
> flag to qemu-io 'write -z' and 'aio_write -z'. To be useful,
> the device has to be opened with 'qemu-io -d unmap' (or the
> just-added 'open -u' subcommand).
>
> Signed-off-by: Eric Blake <address@hidden>
> ---
> qemu-io-cmds.c | 24 +++++++++++++++++++++---
> 1 file changed, 21 insertions(+), 3 deletions(-)
Reviewed-by: Max Reitz <address@hidden>
signature.asc
Description: OpenPGP digital signature
- [Qemu-devel] [PATCH v4 0/6] qemu-io: UI enhancements, Eric Blake, 2016/05/04
- [Qemu-devel] [PATCH v4 4/6] qemu-io: Add 'write -f' to test FUA flag, Eric Blake, 2016/05/04
- [Qemu-devel] [PATCH v4 2/6] qemu-io: Use bool for command line flags, Eric Blake, 2016/05/04
- [Qemu-devel] [PATCH v4 6/6] qemu-io: Add 'write -z -u' to test MAY_UNMAP flag, Eric Blake, 2016/05/04
- Re: [Qemu-devel] [PATCH v4 6/6] qemu-io: Add 'write -z -u' to test MAY_UNMAP flag,
Max Reitz <=
- [Qemu-devel] [PATCH v4 3/6] qemu-io: Allow unaligned access by default, Eric Blake, 2016/05/04
- [Qemu-devel] [PATCH v4 5/6] qemu-io: Add 'open -u' to set BDRV_O_UNMAP after the fact, Eric Blake, 2016/05/04
- [Qemu-devel] [PATCH v4 1/6] qemu-io: Add missing option documentation, Eric Blake, 2016/05/04