From 79f77bf9a4e3dd5ead006b8f17e7c4ff07d8374e Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Mon, 10 Dec 2012 18:04:53 -0500
Subject: [PATCH] nfsd: warn on odd reply state in nfsd_vfs_read
As far as I can tell this shouldn't currently happen--or if it does,
something is wrong and data is going to be corrupted.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
fs/nfsd/vfs.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 0ef9b6b410a2b..b31e46eeb0267 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -936,6 +936,7 @@ nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
.u.data = rqstp,
};
+ WARN_ON_ONCE(rqstp->rq_resused != 1);
rqstp->rq_resused = 1;
host_err = splice_direct_to_actor(file, &sd, nfsd_direct_splice_actor);
} else {
--
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