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Re: [dm-devel] Is there a way to see updated contents of a DM target's underlying device while the DM target is in use?



Neil Brown [neilb suse de] wrote:
> try blockdev --flushbufs
> on the device before reading it.
> Or issue the ioctl yourself.

This should help.

> Or use O_DIRECT to read.

Can this help? He is reading from logical volume lv1 but the page cache
exists for linear device fred01.

Thanks, Malahal.


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