Messages in this thread | | | Date | Thu, 5 Aug 2010 16:39:28 -0400 | From | Ted Ts'o <> | Subject | Re: [RFC] ext4: Don't send extra barrier during fsync if there are no dirty pages. |
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On Thu, Aug 05, 2010 at 03:13:44PM -0400, Jeff Moyer wrote: > > IO_CMD_FSYNC doesn't exist right now, but sure, it means we don't have > > Well, there's IOCB_CMD_FSYNC. But still, this isn't the same thing as > what's requested. If I understand correctly, what is requested is a > mechanism to flush out all data for multiple file descriptors and follow > that with a single barrier/flush (and yes, Ted did give a summary of the > commands that would be required to accomplish that). > > There still remains the question of why this should be tied to the AIO > submission interface.
I don't think it should, personally. The only excuse might be if someone wanted to do an asynchronous fsync(), but I don't think that makes sense in most cases.
- Ted
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