Commit c5fdae46 authored Oct 18, 2008 by Rik van Riel Committed by Linus Torvalds Oct 20, 2008

vmscan: add newly swapped in pages to the inactive list



Swapin_readahead can read in a lot of data that the processes in memory
never need.  Adding swap cache pages to the inactive list prevents them
from putting too much pressure on the working set.

This has the potential to help the programs that are already in memory,
but it could also be a disadvantage to processes that are trying to get
swapped in.

Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 7e9cd484

mm/swap_state.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -310,7 +310,7 @@ struct page *read_swap_cache_async(swp_entry_t entry, gfp_t gfp_mask,
		/*
		* Initiate read into locked page and return.
		*/
		lru_cache_add_active_anon(new_page);
		lru_cache_add_anon(new_page);
		swap_readpage(NULL, new_page);
		return new_page;
		}

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