Date: Wed, 7 Mar 2012 08:10:56 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r232648 - stable/9/sys/fs/nullfs Message-ID: <201203070810.q278AuI4082454@svn.freebsd.org>
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Author: kib Date: Wed Mar 7 08:10:55 2012 New Revision: 232648 URL: http://svn.freebsd.org/changeset/base/232648 Log: MFC r232305: Allow shared locks for reads when lower filesystem accept shared locking. Modified: stable/9/sys/fs/nullfs/null_vfsops.c Directory Properties: stable/9/sys/ (props changed) Modified: stable/9/sys/fs/nullfs/null_vfsops.c ============================================================================== --- stable/9/sys/fs/nullfs/null_vfsops.c Wed Mar 7 08:08:36 2012 (r232647) +++ stable/9/sys/fs/nullfs/null_vfsops.c Wed Mar 7 08:10:55 2012 (r232648) @@ -180,7 +180,8 @@ nullfs_mount(struct mount *mp) MNT_IUNLOCK(mp); } MNT_ILOCK(mp); - mp->mnt_kern_flag |= lowerrootvp->v_mount->mnt_kern_flag & MNTK_MPSAFE; + mp->mnt_kern_flag |= lowerrootvp->v_mount->mnt_kern_flag & + (MNTK_MPSAFE | MNTK_SHARED_WRITES); MNT_IUNLOCK(mp); mp->mnt_data = xmp; vfs_getnewfsid(mp);
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