pnfs: cleanup_layoutcommit

This gives layout driver a chance to cleanup structures they put in at
encode_layoutcommit.

Signed-off-by: Andy Adamson <andros@netapp.com>
[fixup layout header pointer for layoutcommit]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
[rm inode and pnfs_layout_hdr args from cleanup_layoutcommit()]
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

4 files changed, 13 insertions, 0 deletions

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index e86de799dd12..8c77039e7a81 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -5963,6 +5963,7 @@ static void nfs4_layoutcommit_release(void *calldata)
         struct nfs4_layoutcommit_data *data = calldata;
         struct pnfs_layout_segment *lseg, *tmp;
 
+        pnfs_cleanup_layoutcommit(data);
         /* Matched by references in pnfs_set_layoutcommit */
         list_for_each_entry_safe(lseg, tmp, &data->lseg_list, pls_lc_list) {
                 list_del_init(&lseg->pls_lc_list);
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 026166993d11..1dce12f41a4f 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -5599,6 +5599,7 @@ static int decode_layoutcommit(struct xdr_stream *xdr,
         int status;
 
         status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT);
+        res->status = status;
         if (status)
                 return status;
 
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 3a47f7ce1e90..e550e8836c37 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1411,6 +1411,14 @@ pnfs_set_layoutcommit(struct nfs_write_data *wdata)
 }
 EXPORT_SYMBOL_GPL(pnfs_set_layoutcommit);
 
+void pnfs_cleanup_layoutcommit(struct nfs4_layoutcommit_data *data)
+{
+        struct nfs_server *nfss = NFS_SERVER(data->args.inode);
+
+        if (nfss->pnfs_curr_ld->cleanup_layoutcommit)
+                nfss->pnfs_curr_ld->cleanup_layoutcommit(data);
+}
+
 /*
  * For the LAYOUT4_NFSV4_1_FILES layout type, NFS_DATA_SYNC WRITEs and
  * NFS_UNSTABLE WRITEs with a COMMIT to data servers must store enough
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index bddd8b997e18..606fbde2e757 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -113,6 +113,8 @@ struct pnfs_layoutdriver_type {
                                      struct xdr_stream *xdr,
                                      const struct nfs4_layoutreturn_args *args);
 
+        void (*cleanup_layoutcommit) (struct nfs4_layoutcommit_data *data);
+
         void (*encode_layoutcommit) (struct pnfs_layout_hdr *layoutid,
                                      struct xdr_stream *xdr,
                                      const struct nfs4_layoutcommit_args *args);
@@ -196,6 +198,7 @@ void pnfs_roc_release(struct inode *ino);
 void pnfs_roc_set_barrier(struct inode *ino, u32 barrier);
 bool pnfs_roc_drain(struct inode *ino, u32 *barrier);
 void pnfs_set_layoutcommit(struct nfs_write_data *wdata);
+void pnfs_cleanup_layoutcommit(struct nfs4_layoutcommit_data *data);
 int pnfs_layoutcommit_inode(struct inode *inode, bool sync);
 int _pnfs_return_layout(struct inode *);
 int pnfs_ld_write_done(struct nfs_write_data *);