Author: alc Date: Sat Sep 28 17:16:03 2019 New Revision: 352847 URL: https://svnweb.freebsd.org/changeset/base/352847
Log: Eliminate redundant calls to critical_enter() and critical_exit() from pmap_update_entry(). It suffices that interrupts are blocked. Reviewed by: andrew, markj MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D21753 Modified: head/sys/arm64/arm64/pmap.c Modified: head/sys/arm64/arm64/pmap.c ============================================================================== --- head/sys/arm64/arm64/pmap.c Sat Sep 28 17:15:48 2019 (r352846) +++ head/sys/arm64/arm64/pmap.c Sat Sep 28 17:16:03 2019 (r352847) @@ -3007,7 +3007,6 @@ pmap_update_entry(pmap_t pmap, pd_entry_t *pte, pd_ent * as they may make use of an address we are about to invalidate. */ intr = intr_disable(); - critical_enter(); /* * Clear the old mapping's valid bit, but leave the rest of the entry @@ -3021,7 +3020,6 @@ pmap_update_entry(pmap_t pmap, pd_entry_t *pte, pd_ent pmap_store(pte, newpte); dsb(ishst); - critical_exit(); intr_restore(intr); } _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
