Re: [PATCH v2 1/4] mm: Introduce and use mapping_empty
From: Matthew Wilcox <willy@infradead.org>
Date: 2021-01-21 21:30:10
Also in:
linux-fsdevel, nvdimm
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:quoted
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@infradead.org> Tested-by: Vishal Verma <vishal.l.verma@intel.com>Acked-by: Johannes Weiner <hannes@cmpxchg.org> 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!