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Date: Sat, 16 May 2009 17:26:45 +0800 From: Wu Fengguang <fengguang.wu@...el.com> To: Rik van Riel <riel@...hat.com> Cc: Andrew Morton <akpm@...ux-foundation.org>, "hannes@...xchg.org" <hannes@...xchg.org>, "peterz@...radead.org" <peterz@...radead.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "tytso@....edu" <tytso@....edu>, "linux-mm@...ck.org" <linux-mm@...ck.org>, "elladan@...imo.com" <elladan@...imo.com>, "npiggin@...e.de" <npiggin@...e.de>, "cl@...ux-foundation.org" <cl@...ux-foundation.org>, "kosaki.motohiro@...fujitsu.com" <kosaki.motohiro@...fujitsu.com>, "minchan.kim@...il.com" <minchan.kim@...il.com> Subject: Re: [PATCH -mm] vmscan: make mapped executable pages the first class citizen On Tue, May 12, 2009 at 09:20:11PM +0800, Rik van Riel wrote: > Wu Fengguang wrote: > > >> Also, the change makes this comment: > >> > >> spin_lock_irq(&zone->lru_lock); > >> /* > >> * Count referenced pages from currently used mappings as > >> * rotated, even though they are moved to the inactive list. > >> * This helps balance scan pressure between file and anonymous > >> * pages in get_scan_ratio. > >> */ > >> reclaim_stat->recent_rotated[!!file] += pgmoved; > >> > >> inaccurate. > > > > Good catch, I'll just remove the stale "even though they are moved to > > the inactive list". > > Well, it is still true for !VM_EXEC pages. This comment? Count referenced pages from currently used mappings as rotated, even though only some of them are actually re-activated. This helps... Thanks, Fengguang -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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