[PATCH v2 2/3] Generic handling of multi-page exclusions

HATAYAMA Daisuke d.hatayama at jp.fujitsu.com
Wed Apr 9 00:27:08 PDT 2014

From: Atsushi Kumagai <kumagai-atsushi at mxc.nes.nec.co.jp>
Subject: RE: [PATCH v2 2/3] Generic handling of multi-page exclusions
Date: Tue, 8 Apr 2014 09:00:19 +0000

> At that time, I chose the current code since it was simpler and safer.
> http://www.mail-archive.com/kexec%40lists.infradead.org/msg10207.html
> Don't you like this ?

Sorry. I had forgotten this. We should keep the sanity check
there. But in our policy, we should not pass to set_bitmap_cyclic(),
pfn and cycle where pfn is not in the cycle. We should chceck that in
the caller side and pass pfn in the cycle only.

Also, on the current implementation, even if pfn outside a current
cycle is passed to set_bitmap_cyclic(), we don't have any means to
know that.

So, how about warning that only once at runtime?


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