[Gluster-devel] FALLOC_FL_COLLAPSE_RANGE?

[Ravishankar N]

On 08/22/2014 06:27 AM, Justin Clift wrote:
> Just noticed this:
>
>    http://article.gmane.org/gmane.comp.file-systems.xfs.general/60475
>
> Is it something of interest to us?

I have been meaning to explore adding both FALLOC_FL_COLLAPSE_RANGE and 
FALLOC_FL_ZERO_RANGE flags to fallocate() in glusterfs but never got 
around to it. Don't know if the feature is beneficial per se (see 
comments in http://lwn.net/Articles/589260/ ), but since it has been 
merged in the 3.15 kernel, I guess it's going to be around forever. Let 
me take this up. Apparently more flags (FALLOC_FL_INSERT_RANGE and 
IOC_MOV_DATA) are in the works for fallocate().

Ravi


> + Justin
>
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