From 1dc1263413262d13f45f42d89c554d0ddc167ca2 Mon Sep 17 00:00:00 2001 From: kmacy Date: Fri, 30 Apr 2010 00:46:43 +0000 Subject: On Alan's advice, rather than do a wholesale conversion on a single architecture from page queue lock to a hashed array of page locks (based on a patch by Jeff Roberson), I've implemented page lock support in the MI code and have only moved vm_page's hold_count out from under page queue mutex to page lock. This changes pmap_extract_and_hold on all pmaps. Supported by: Bitgravity Inc. Discussed with: alc, jeffr, and kib --- sys/ia64/include/pmap.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'sys/ia64/include') diff --git a/sys/ia64/include/pmap.h b/sys/ia64/include/pmap.h index 44079c8..ff059fd 100644 --- a/sys/ia64/include/pmap.h +++ b/sys/ia64/include/pmap.h @@ -77,6 +77,8 @@ struct pmap { TAILQ_HEAD(,pv_entry) pm_pvlist; /* list of mappings in pmap */ u_int32_t pm_rid[5]; /* base RID for pmap */ struct pmap_statistics pm_stats; /* pmap statistics */ + uint32_t pm_gen_count; /* generation count (pmap lock dropped) */ + u_int pm_retries; }; typedef struct pmap *pmap_t; -- cgit v1.1