From: Peter Zijlstra <peterz@infradead.org>
Date: Sun, 8 Jul 2007 08:13:06 +0000 (-0700)
Subject: mm: double mark_page_accessed() in read_cache_page_async()
X-Git-Tag: firefly_0821_release~28476
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4e99325b462ba18075768582621af74a6b79d2a5;p=firefly-linux-kernel-4.4.55.git

mm: double mark_page_accessed() in read_cache_page_async()

Fix a post-2.6.21 regression.

read_cache_page_async() has two invocations of mark_page_accessed() which will
launch pages right onto the active list.

Remove the first one, keeping the latter one.  This avoids marking unwanted
pages active (in the retry loop).

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/mm/filemap.c b/mm/filemap.c
index edb1b0b5cc8d..d1d9814f99dd 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1786,7 +1786,6 @@ retry:
 	page = __read_cache_page(mapping, index, filler, data);
 	if (IS_ERR(page))
 		return page;
-	mark_page_accessed(page);
 	if (PageUptodate(page))
 		goto out;