Re: [PATCH v2 1/4] mm: Introduce and use mapping_empty

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On Thu, Jan 21, 2021 at 03:42:31PM -0500, Johannes Weiner wrote:
> On Mon, Oct 26, 2020 at 03:18:46PM +0000, Matthew Wilcox (Oracle) wrote:
> > Instead of checking the two counters (nrpages and nrexceptional), we
> > can just check whether i_pages is empty.
> > 
> > Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
> > Tested-by: Vishal Verma <vishal.l.verma@xxxxxxxxx>
> 
> Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
> 
> Heh, I was looking for the fs/inode.c hunk here, because I remember
> those BUG_ONs in the inode free path. Found it in the last patch - I
> guess they escaped grep but the compiler let you know? :-)

Heh, I forget now!  I think I did it that way on purpose, but now I
forget what that purpose was!



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