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Date: Wed, 27 Apr 2016 14:27:49 -0700 From: Andrew Morton <akpm@...ux-foundation.org> To: Kent Overstreet <kent.overstreet@...il.com> Cc: Al Viro <viro@...iv.linux.org.uk>, linux-kernel@...r.kernel.org, linux-mm@...ck.org Subject: Re: [PATCH 2/2] mm: Real pagecache iterators On Thu, 31 Mar 2016 18:38:11 -0800 Kent Overstreet <kent.overstreet@...il.com> wrote: > Introduce for_each_pagecache_page() and related macros, with the goal of > replacing most/all uses of pagevec_lookup(). > > For the most part this shouldn't be a functional change. The one functional > difference with the new macros is that they now take an @end parameter, so we're > able to avoid grabbing pages in __find_get_pages() that we'll never use. > > This patch only does some of the conversions, the ones I was able to easily test > myself - the conversions are mechanical but tricky enough they generally warrent > testing. > > Signed-off-by: Kent Overstreet <kent.overstreet@...il.com> > Cc: Andrew Morton <akpm@...ux-foundation.org> > Cc: Al Viro <viro@...iv.linux.org.uk> > --- > fs/ext4/inode.c | 261 ++++++++++++++++++++---------------------------- > include/linux/pagevec.h | 67 ++++++++++++- > mm/filemap.c | 76 +++++++++----- > mm/page-writeback.c | 148 +++++++++++---------------- > mm/swap.c | 33 +----- > mm/truncate.c | 259 +++++++++++++++++------------------------------ > 6 files changed, 380 insertions(+), 464 deletions(-) hm, it's a lot of churn in sensitive areas for an 80 line saving. What do others think?
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