Date: Sat, 24 Nov 2012 12:42:29 +0000 (UTC) From: Andriy Gapon <avg@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: r243484 - stable/9/sys/cddl/compat/opensolaris/kern Message-ID: <201211241242.qAOCgTps052324@svn.freebsd.org>
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Author: avg Date: Sat Nov 24 12:42:29 2012 New Revision: 243484 URL: http://svnweb.freebsd.org/changeset/base/243484 Log: MFC r242569: opensolaris_lookup: use vfs_busy in traverse before calling VFS_ROOT Modified: stable/9/sys/cddl/compat/opensolaris/kern/opensolaris_lookup.c Directory Properties: stable/9/sys/ (props changed) Modified: stable/9/sys/cddl/compat/opensolaris/kern/opensolaris_lookup.c ============================================================================== --- stable/9/sys/cddl/compat/opensolaris/kern/opensolaris_lookup.c Sat Nov 24 12:40:43 2012 (r243483) +++ stable/9/sys/cddl/compat/opensolaris/kern/opensolaris_lookup.c Sat Nov 24 12:42:29 2012 (r243484) @@ -88,6 +88,7 @@ traverse(vnode_t **cvpp, int lktype) vfsp = vn_mountedvfs(cvp); if (vfsp == NULL) break; + error = vfs_busy(vfsp, 0); /* * tvp is NULL for *cvpp vnode, which we can't unlock. */ @@ -95,12 +96,15 @@ traverse(vnode_t **cvpp, int lktype) vput(cvp); else vrele(cvp); + if (error) + return (error); /* * The read lock must be held across the call to VFS_ROOT() to * prevent a concurrent unmount from destroying the vfs. */ error = VFS_ROOT(vfsp, lktype, &tvp); + vfs_unbusy(vfsp); if (error != 0) return (error); cvp = tvp;
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