Author: skra Date: Sat Nov 12 17:03:21 2016 New Revision: 308569 URL: https://svnweb.freebsd.org/changeset/base/308569
Log: Always call PHYS_TO_VM_PAGE() in is_managed(). Fast road for addresses under first_page cannot be taken as this variable is connected only to vm_page_array segment. There could be more segments in system like the ones for various fictitious page ranges. These can be situated under vm_page_array segment and so, they could be skipped before this fix. However, as far as I know, there is no report associated with it. While here, the return type of this function is changed from boolean_t to bool type. Reviewed by: kib MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D8502 Modified: head/sys/arm/arm/pmap-v6.c Modified: head/sys/arm/arm/pmap-v6.c ============================================================================== --- head/sys/arm/arm/pmap-v6.c Sat Nov 12 05:09:39 2016 (r308568) +++ head/sys/arm/arm/pmap-v6.c Sat Nov 12 17:03:21 2016 (r308569) @@ -2739,21 +2739,15 @@ SYSCTL_INT(_vm_pmap, OID_AUTO, pv_entry_ /* * Is given page managed? */ -static __inline boolean_t +static __inline bool is_managed(vm_paddr_t pa) { - vm_offset_t pgnum; vm_page_t m; - pgnum = atop(pa); - if (pgnum >= first_page) { - m = PHYS_TO_VM_PAGE(pa); - if (m == NULL) - return (FALSE); - if ((m->oflags & VPO_UNMANAGED) == 0) - return (TRUE); - } - return (FALSE); + m = PHYS_TO_VM_PAGE(pa); + if (m == NULL) + return (false); + return ((m->oflags & VPO_UNMANAGED) == 0); } static __inline boolean_t _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
