linux-kernel - [PATCH] NFS: return -EAGAIN when skipped commit in nfs_commit_unstable

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Message-ID: <20110610140459.GA8021@localhost>
Date:	Fri, 10 Jun 2011 22:04:59 +0800
From:	Wu Fengguang <fengguang.wu@...el.com>
To:	Trond Myklebust <Trond.Myklebust@...app.com>
Cc:	Christoph Hellwig <hch@...radead.org>, linux-nfs@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] NFS: return -EAGAIN when skipped commit in
 nfs_commit_unstable_pages()

It's confusing to return success while redirtying the inode at the
same time in ->write_inode(). Return -EAGAIN to indicate that we've
not finished with this inode.

Impact: it's a cleanup, not bug fix.

CC: Christoph Hellwig <hch@...radead.org>
Signed-off-by: Wu Fengguang <fengguang.wu@...el.com>
---
 fs/nfs/write.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-next.orig/fs/nfs/write.c	2011-06-10 21:52:34.000000000 +0800
+++ linux-next/fs/nfs/write.c	2011-06-10 21:52:37.000000000 +0800
@@ -1521,7 +1521,7 @@ static int nfs_commit_unstable_pages(str
 {
 	struct nfs_inode *nfsi = NFS_I(inode);
 	int flags = FLUSH_SYNC;
-	int ret = 0;
+	int ret = -EAGAIN;
 
 	if (wbc->sync_mode == WB_SYNC_NONE) {
 		/* Don't commit yet if this is a non-blocking flush and there
--
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