svn commit: r364285 - head/sys/vm
Konstantin Belousov
kib at FreeBSD.org
Sun Aug 16 20:52:25 UTC 2020
Author: kib
Date: Sun Aug 16 20:52:24 2020
New Revision: 364285
URL: https://svnweb.freebsd.org/changeset/base/364285
Log:
Atomically update vm_object vnp_size, where atomic is available.
This will be used later, where it matters on 32bit arches.
Reviewed by: markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D25968
Modified:
head/sys/vm/vnode_pager.c
Modified: head/sys/vm/vnode_pager.c
==============================================================================
--- head/sys/vm/vnode_pager.c Sun Aug 16 19:14:04 2020 (r364284)
+++ head/sys/vm/vnode_pager.c Sun Aug 16 20:52:24 2020 (r364285)
@@ -520,7 +520,11 @@ vnode_pager_setsize(struct vnode *vp, vm_ooffset_t nsi
vm_page_xunbusy(m);
}
out:
+#if defined(__powerpc__) && !defined(__powerpc64__)
object->un_pager.vnp.vnp_size = nsize;
+#else
+ atomic_store_64(&object->un_pager.vnp.vnp_size, nsize);
+#endif
object->size = nobjsize;
VM_OBJECT_WUNLOCK(object);
}
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