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authorFred Isaman <iisaman@netapp.com>2011-01-06 06:36:32 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2011-01-06 14:46:32 -0500
commitf7e8917a67980924651a9e244510e63ef05c7755 (patch)
treefb00db5ef8b3b26793fae7a1186f1cd16205ab9d /include/linux/nfs_fs_sb.h
parent36840370845629e6cb4324d1dd4aff6778670503 (diff)
pnfs: layout roc code
A layout can request return-on-close. How this interacts with the forgetful model of never sending LAYOUTRETURNS is a bit ambiguous. We forget any layouts marked roc, and wait for them to be completely forgotten before continuing with the close. In addition, to compensate for races with any inflight LAYOUTGETs, and the fact that we do not get any layout stateid back from the server, we set the barrier to the worst case scenario of current_seqid + number of outstanding LAYOUTGETS. Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux/nfs_fs_sb.h')
-rw-r--r--include/linux/nfs_fs_sb.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index e93ada0565fc..7f20c0b47a91 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -149,6 +149,7 @@ struct nfs_server {
149 that are supported on this 149 that are supported on this
150 filesystem */ 150 filesystem */
151 struct pnfs_layoutdriver_type *pnfs_curr_ld; /* Active layout driver */ 151 struct pnfs_layoutdriver_type *pnfs_curr_ld; /* Active layout driver */
152 struct rpc_wait_queue roc_rpcwaitq;
152#endif 153#endif
153 void (*destroy)(struct nfs_server *); 154 void (*destroy)(struct nfs_server *);
154 155