Date: Sun, 13 Oct 2019 15:54:22 +0000 (UTC) From: Mark Johnston <markj@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r353475 - stable/12/sys/riscv/riscv Message-ID: <201910131554.x9DFsMWY064648@repo.freebsd.org>
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Author: markj Date: Sun Oct 13 15:54:22 2019 New Revision: 353475 URL: https://svnweb.freebsd.org/changeset/base/353475 Log: MFC r353308: Avoid erroneously clearing PGA_WRITEABLE in riscv's pmap_enter(). Modified: stable/12/sys/riscv/riscv/pmap.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/riscv/riscv/pmap.c ============================================================================== --- stable/12/sys/riscv/riscv/pmap.c Sun Oct 13 15:42:41 2019 (r353474) +++ stable/12/sys/riscv/riscv/pmap.c Sun Oct 13 15:54:22 2019 (r353475) @@ -2830,7 +2830,9 @@ pmap_enter(pmap_t pmap, vm_offset_t va, vm_page_t m, v if ((new_l3 & PTE_SW_MANAGED) == 0) free_pv_entry(pmap, pv); if ((om->aflags & PGA_WRITEABLE) != 0 && - TAILQ_EMPTY(&om->md.pv_list)) + TAILQ_EMPTY(&om->md.pv_list) && + ((om->flags & PG_FICTITIOUS) != 0 || + TAILQ_EMPTY(&pa_to_pvh(opa)->pv_list))) vm_page_aflag_clear(om, PGA_WRITEABLE); } pmap_invalidate_page(pmap, va);
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