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Re: [Cluster-devel] fallocate vs O_(D)SYNC



On Wed, Nov 16, 2011 at 04:57:55PM +0100, Jan Kara wrote:
>   I agree with you that userspace shouldn't have to call fsync. What I
> meant is that sys_fallocate() or do_fallocate() can call
> generic_write_sync(file, pos, len), and that would be completely
> transparent to userspace.

That's different from how everything else in the I/O path works.
If filessystem want to use it, that's fine, but I suspect most could
do it more efficiently.


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