diff options
Diffstat (limited to 'usr/src/uts/common/vm/seg_dev.c')
| -rw-r--r-- | usr/src/uts/common/vm/seg_dev.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/usr/src/uts/common/vm/seg_dev.c b/usr/src/uts/common/vm/seg_dev.c index e3ea694c05..9d214024a5 100644 --- a/usr/src/uts/common/vm/seg_dev.c +++ b/usr/src/uts/common/vm/seg_dev.c @@ -20,7 +20,7 @@ */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -37,8 +37,6 @@ * contributors. */ -#pragma ident "%Z%%M% %I% %E% SMI" - /* * VM - segment of a mapped device. * @@ -428,6 +426,15 @@ segdev_create(struct seg *seg, void *argsp) sdp->devmap_data = NULL; hat_unload(seg->s_as->a_hat, seg->s_base, seg->s_size, HAT_UNLOAD_UNMAP); + } else { + /* + * Mappings of /dev/null don't count towards the VSZ of a + * process. Mappings of /dev/null have no mapping type. + */ + if ((SEGOP_GETTYPE(seg, (seg)->s_base) & (MAP_SHARED | + MAP_PRIVATE)) == 0) { + seg->s_as->a_resvsize -= seg->s_size; + } } return (error); |