tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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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>

authored by

Peter Zijlstra and committed by
Linus Torvalds 4e99325b 95511ad4

-1
-1
mm/filemap.c
··· 1786 1786 page = __read_cache_page(mapping, index, filler, data); 1787 1787 if (IS_ERR(page)) 1788 1788 return page; 1789 - mark_page_accessed(page); 1790 1789 if (PageUptodate(page)) 1791 1790 goto out; 1792 1791