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Re: [Qemu-devel] [PATCH] hostmem-file: add a property 'notrunc' to avoid
From: |
Eduardo Habkost |
Subject: |
Re: [Qemu-devel] [PATCH] hostmem-file: add a property 'notrunc' to avoid data corruption |
Date: |
Mon, 24 Oct 2016 11:10:47 -0200 |
User-agent: |
Mutt/1.7.0 (2016-08-17) |
On Thu, Oct 20, 2016 at 03:55:22PM +0200, Kevin Wolf wrote:
> Am 20.10.2016 um 14:34 hat Igor Mammedov geschrieben:
> > > #ifdef __linux__
> > > +static uint64_t get_file_size(const char *path, Error **errp)
> > Maybe QEMU laredy has an utility to do it that could be shared,
> > CCing block maintainers.
>
> We have quite a bit of code for determining the right size of a file
> (including block devices) on different platforms and devices. See the
> .bdrv_getlength implementations in raw-posix.c and raw-win32.c.
>
> However, none of them are made for consumption outside the block layer.
There's a patch on qemu-devel archives from 2015:
Subject [PATCH v7 11/35] util: introduce qemu_file_getlength()
it could be reused here.
--
Eduardo
- Re: [Qemu-devel] [PATCH] hostmem-file: add a property 'notrunc' to avoid data corruption, (continued)
- Re: [Qemu-devel] [PATCH] hostmem-file: add a property 'notrunc' to avoid data corruption, Eduardo Habkost, 2016/10/21
- Re: [Qemu-devel] [PATCH] hostmem-file: add a property 'notrunc' to avoid data corruption, Igor Mammedov, 2016/10/20
- Re: [Qemu-devel] [PATCH] hostmem-file: add a property 'notrunc' to avoid data corruption, Eduardo Habkost, 2016/10/20
- Re: [Qemu-devel] [PATCH] hostmem-file: add a property 'notrunc' to avoid data corruption, Igor Mammedov, 2016/10/20
- Re: [Qemu-devel] [PATCH] hostmem-file: add a property 'notrunc' to avoid data corruption, Eduardo Habkost, 2016/10/20
- Re: [Qemu-devel] [PATCH] hostmem-file: add a property 'notrunc' to avoid data corruption, Igor Mammedov, 2016/10/20
Re: [Qemu-devel] [PATCH] hostmem-file: add a property 'notrunc' to avoid data corruption, Daniel P. Berrange, 2016/10/20
Re: [Qemu-devel] [PATCH] hostmem-file: add a property 'notrunc' to avoid data corruption, Kevin Wolf, 2016/10/20