linux-kernel - [PATCH v9 31/34] vfs: convert filename_lookup to use retry

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Date:	Mon,  5 Nov 2012 10:22:10 -0500
From:	Jeff Layton <jlayton@...hat.com>
To:	viro@...iv.linux.org.uk
Cc:	linux-fsdevel@...r.kernel.org, linux-nfs@...r.kernel.org,
	linux-kernel@...r.kernel.org, michael.brantley@...haw.com,
	hch@...radead.org, miklos@...redi.hu, pstaubach@...grid.com
Subject: [PATCH v9 31/34] vfs: convert filename_lookup to use retry_estale helper

Signed-off-by: Jeff Layton <jlayton@...hat.com>
---
 fs/namei.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/namei.c b/fs/namei.c
index fbfeb88..c3582d4 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2020,10 +2020,11 @@ static int path_lookupat(int dfd, const char *name,
 static int filename_lookup(int dfd, struct filename *name,
 				unsigned int flags, struct nameidata *nd)
 {
+	unsigned int try = 0;
 	int retval = path_lookupat(dfd, name->name, flags | LOOKUP_RCU, nd);
 	if (unlikely(retval == -ECHILD))
 		retval = path_lookupat(dfd, name->name, flags, nd);
-	if (unlikely(retval == -ESTALE))
+	while (retry_estale(retval, try++))
 		retval = path_lookupat(dfd, name->name,
 						flags | LOOKUP_REVAL, nd);
 
-- 
1.7.11.7

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