commit 14b7f4a1edf15808cf52dc38277ffe1d84854839
author Jeff Layton <jlayton@poochiereds.net> Thu May 05 06:53:47 2016 -0400
committer J. Bruce Fields <bfields@redhat.com> Fri May 13 15:34:47 2016 -0400
tree b4fcfa64ff59ee0ed5f6ef01d7b828de534e3af9
parent 64c59a3726f2dfa71680f9f3c34359e10e3ed7ab

nfsd: handle seqid wraparound in nfsd4_preprocess_layout_stateid

Move the existing static function to an inline helper, and call it.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

fs/nfsd/nfs4layouts.c

diff --git a/fs/nfsd/nfs4layouts.c b/fs/nfsd/nfs4layouts.c
index 825c7bc..953c075 100644
--- a/fs/nfsd/nfs4layouts.c
+++ b/fs/nfsd/nfs4layouts.c
@@ -289,7 +289,7 @@
 
 		status = nfserr_bad_stateid;
 		mutex_lock(&ls->ls_mutex);
-		if (stateid->si_generation > stid->sc_stateid.si_generation)
+		if (nfsd4_stateid_generation_after(stateid, &stid->sc_stateid))
 			goto out_unlock_stid;
 		if (layout_type != ls->ls_layout_type)
 			goto out_unlock_stid;