Date: Mon, 20 Oct 2014 17:53:49 +0000 (UTC) From: Mateusz Guzik <mjg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r273335 - head/sys/fs/unionfs Message-ID: <201410201753.s9KHrnaG009500@svn.freebsd.org>
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Author: mjg Date: Mon Oct 20 17:53:49 2014 New Revision: 273335 URL: https://svnweb.freebsd.org/changeset/base/273335 Log: unionfs: hold mount interlock while manipulating mnt_flag This is for consistency with other filesystems. Modified: head/sys/fs/unionfs/union_vfsops.c Modified: head/sys/fs/unionfs/union_vfsops.c ============================================================================== --- head/sys/fs/unionfs/union_vfsops.c Mon Oct 20 17:04:03 2014 (r273334) +++ head/sys/fs/unionfs/union_vfsops.c Mon Oct 20 17:53:49 2014 (r273335) @@ -290,12 +290,14 @@ unionfs_domount(struct mount *mp) return (error); } + MNT_ILOCK(mp); /* * Check mnt_flag */ if ((ump->um_lowervp->v_mount->mnt_flag & MNT_LOCAL) && (ump->um_uppervp->v_mount->mnt_flag & MNT_LOCAL)) mp->mnt_flag |= MNT_LOCAL; + MNT_IUNLOCK(mp); /* * Get new fsid
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