[PATCH 1/4] nfsd4: fix spurious 4.1 post-reboot failures

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From: "J. Bruce Fields" <bfields@xxxxxxxxxx>

In the NFSv4.1 case, this could cause a spurious "NFSD: failed to write
recovery record (err -17); please check that /var/lib/nfs/v4recovery
exists and is writable.

Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxx>
Reported-by: Steve Dickson <SteveD@xxxxxxxxxx>
---
 fs/nfsd/nfs4recover.c |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index ed083b9..28712e2 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -144,8 +144,15 @@ nfsd4_create_clid_dir(struct nfs4_client *clp)
 		status = PTR_ERR(dentry);
 		goto out_unlock;
 	}
-	status = -EEXIST;
 	if (dentry->d_inode)
+		/*
+		 * In the 4.1 case, where we're called from
+		 * reclaim_complete(), records from the previous reboot
+		 * may still be left, so this is OK.
+		 *
+		 * In the 4.0 case, we should never get here; but we may
+		 * as well be forgiving and just succeed silently.
+		 */
 		goto out_put;
 	status = mnt_want_write(rec_file->f_path.mnt);
 	if (status)
-- 
1.7.5.4

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