Re: [PATCH 05/16] page-flags: define behavior of FS/IO-related flags on compound pages

From: Dave Hansen
Date: Thu Mar 19 2015 - 14:29:59 EST

On 03/19/2015 10:08 AM, Kirill A. Shutemov wrote:
> The odd expection is PG_dirty: sound uses compound pages and maps them
> with PTEs. NO_COMPOUND triggers VM_BUG_ON() in set_page_dirty() on
> handling shared fault. Let's use HEAD for PG_dirty.

Can we get the sound guys to look at this, btw? It seems like an odd
thing that we probably don't want to keep around, right?
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