linux-kernel - [PATCH v9 29/34] vfs: convert do_filp_open to use retry

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Date:	Mon,  5 Nov 2012 10:22:08 -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 29/34] vfs: convert do_filp_open 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 39adf1b..45a45d7 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3012,11 +3012,12 @@ struct file *do_filp_open(int dfd, struct filename *pathname,
 {
 	struct nameidata nd;
 	struct file *filp;
+	unsigned int try = 0;
 
 	filp = path_openat(dfd, pathname, &nd, op, flags | LOOKUP_RCU);
 	if (unlikely(filp == ERR_PTR(-ECHILD)))
 		filp = path_openat(dfd, pathname, &nd, op, flags);
-	if (unlikely(filp == ERR_PTR(-ESTALE)))
+	while (retry_estale(PTR_ERR(filp), try++))
 		filp = path_openat(dfd, pathname, &nd, op, flags | LOOKUP_REVAL);
 	return filp;
 }
-- 
1.7.11.7

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