Date: Sat, 29 Sep 2012 08:11:12 +0000 (UTC) From: Alan Cox <alc@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r241044 - head/sys/arm/arm Message-ID: <201209290811.q8T8BCdo090182@svn.freebsd.org>
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Author: alc Date: Sat Sep 29 08:11:12 2012 New Revision: 241044 URL: http://svn.freebsd.org/changeset/base/241044 Log: Update a comment to reflect recent locking changes. Modified: head/sys/arm/arm/pmap.c Modified: head/sys/arm/arm/pmap.c ============================================================================== --- head/sys/arm/arm/pmap.c Sat Sep 29 05:52:19 2012 (r241043) +++ head/sys/arm/arm/pmap.c Sat Sep 29 08:11:12 2012 (r241044) @@ -4562,13 +4562,13 @@ retry: managed = true; if (managed) { /* - * the ARM pmap tries to maintain a per-mapping + * The ARM pmap tries to maintain a per-mapping * reference bit. The trouble is that it's kept in * the PV entry, not the PTE, so it's costly to access - * here. You would need to acquire the page queues + * here. You would need to acquire the pvh global * lock, call pmap_find_pv(), and introduce a custom * version of vm_page_pa_tryrelock() that releases and - * reacquires the page queues lock. In the end, I + * reacquires the pvh global lock. In the end, I * doubt it's worthwhile. This may falsely report * the given address as referenced. */
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