Date: Sun, 11 May 2014 18:07:08 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r265887 - head/sys/vm Message-ID: <201405111807.s4BI78n3006929@svn.freebsd.org>
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Author: kib Date: Sun May 11 18:07:07 2014 New Revision: 265887 URL: http://svnweb.freebsd.org/changeset/base/265887 Log: Fix locking. The dst_object must remain locked on the retry of the loop iteration. Reported and tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 6 days Modified: head/sys/vm/vm_fault.c Modified: head/sys/vm/vm_fault.c ============================================================================== --- head/sys/vm/vm_fault.c Sun May 11 17:41:29 2014 (r265886) +++ head/sys/vm/vm_fault.c Sun May 11 18:07:07 2014 (r265887) @@ -1359,6 +1359,7 @@ again: VM_OBJECT_WUNLOCK(dst_object); VM_OBJECT_RUNLOCK(object); VM_WAIT; + VM_OBJECT_WLOCK(dst_object); goto again; } } while (dst_m == NULL);
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