Date: Fri, 23 Jan 2009 22:13:30 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r187655 - head/sys/kern Message-ID: <200901232213.n0NMDUID055672@svn.freebsd.org>
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Author: jhb Date: Fri Jan 23 22:13:30 2009 New Revision: 187655 URL: http://svn.freebsd.org/changeset/base/187655 Log: Use shared vnode locks for fchdir(). Submitted by: ups Modified: head/sys/kern/vfs_syscalls.c Modified: head/sys/kern/vfs_syscalls.c ============================================================================== --- head/sys/kern/vfs_syscalls.c Fri Jan 23 22:13:00 2009 (r187654) +++ head/sys/kern/vfs_syscalls.c Fri Jan 23 22:13:30 2009 (r187655) @@ -758,7 +758,7 @@ fchdir(td, uap) VREF(vp); fdrop(fp, td); vfslocked = VFS_LOCK_GIANT(vp->v_mount); - vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); + vn_lock(vp, LK_SHARED | LK_RETRY); AUDIT_ARG(vnode, vp, ARG_VNODE1); error = change_dir(vp, td); while (!error && (mp = vp->v_mountedhere) != NULL) { @@ -766,7 +766,7 @@ fchdir(td, uap) if (vfs_busy(mp, 0)) continue; tvfslocked = VFS_LOCK_GIANT(mp); - error = VFS_ROOT(mp, LK_EXCLUSIVE, &tdp, td); + error = VFS_ROOT(mp, LK_SHARED, &tdp, td); vfs_unbusy(mp); if (error) { VFS_UNLOCK_GIANT(tvfslocked);
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