Re: ext4 testing in the F10 release cycle

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Eric Sandeen wrote:
> Richard W.M. Jones wrote:
>> On Wed, Sep 03, 2008 at 11:19:04AM -0500, Eric Sandeen wrote:
>>> I'd appreciate any and all testing, benchmarking & feedback that people
>>> would be willing to do.  Just getting more exposure in real-life
>>> scenarios would be great.
>>>
>>> As with any filesystem, I wouldn't put your only copy of your most
>>> precious data on it - use good sense about backups etc - but ext4 has
>>> made good progress since F9 on both stability and performance, so have
>>> at it!
>> Persistent pre-allocation[1] is something that virt-manager could
>> really use when it has to allocate multi-gigabyte images.  A few
>> questions about this feature though:
>>
>> (a) Is it exposed as a syscall anywhere?  I don't see it in the header
>> files of my Rawhide system (2.6.27).
> 
> Hm, I probably need to get the fallocate.h header file included if it's
> not so that sys_fallocate can be used directly,

Ah, it should be there:

[root@inode ~]# rpm -ql kernel-headers | grep falloc
/usr/include/linux/falloc.h

-Eric

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