Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933058AbbEKSgD (ORCPT ); Mon, 11 May 2015 14:36:03 -0400 Received: from zeniv.linux.org.uk ([195.92.253.2]:47067 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754950AbbEKSIS (ORCPT ); Mon, 11 May 2015 14:08:18 -0400 From: Al Viro To: Linus Torvalds Cc: Neil Brown , Christoph Hellwig , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [PATCH v3 036/110] namei: move the calls of may_follow_link() into follow_link() Date: Mon, 11 May 2015 19:06:56 +0100 Message-Id: <1431367690-5223-36-git-send-email-viro@ZenIV.linux.org.uk> X-Mailer: git-send-email 1.7.7.6 In-Reply-To: <20150511180650.GA4147@ZenIV.linux.org.uk> References: <20150511180650.GA4147@ZenIV.linux.org.uk> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2078 Lines: 70 From: Al Viro All remaining callers of the former are preceded by the latter Signed-off-by: Al Viro --- fs/namei.c | 21 ++++++--------------- 1 file changed, 6 insertions(+), 15 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 2354d4f..f7659ee 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -882,9 +882,12 @@ out: static int follow_link(struct path *link, struct nameidata *nd, void **p) { - const char *s = get_link(link, nd, p); - int error; - + const char *s; + int error = may_follow_link(link, nd); + if (unlikely(error)) + return error; + nd->flags |= LOOKUP_PARENT; + s = get_link(link, nd, p); if (unlikely(IS_ERR(s))) return PTR_ERR(s); if (unlikely(!s)) @@ -2002,10 +2005,6 @@ static int path_lookupat(int dfd, const struct filename *name, while (err > 0) { void *cookie; struct path link = nd->link; - err = may_follow_link(&link, nd); - if (unlikely(err)) - break; - nd->flags |= LOOKUP_PARENT; err = follow_link(&link, nd, &cookie); if (err) break; @@ -2352,10 +2351,6 @@ path_mountpoint(int dfd, const struct filename *name, struct path *path, while (err > 0) { void *cookie; struct path link = *path; - err = may_follow_link(&link, nd); - if (unlikely(err)) - break; - nd->flags |= LOOKUP_PARENT; err = follow_link(&link, nd, &cookie); if (err) break; @@ -3239,10 +3234,6 @@ static struct file *path_openat(int dfd, struct filename *pathname, while (unlikely(error > 0)) { /* trailing symlink */ struct path link = nd->link; void *cookie; - error = may_follow_link(&link, nd); - if (unlikely(error)) - break; - nd->flags |= LOOKUP_PARENT; nd->flags &= ~(LOOKUP_OPEN|LOOKUP_CREATE|LOOKUP_EXCL); error = follow_link(&link, nd, &cookie); if (unlikely(error)) -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/