pnfs: let layoutcommit handle a list of lseg

There can be multiple lseg per file, so layoutcommit should be
able to handle it.

[Needed in v3.0]
CC: Stable Tree <stable@kernel.org>
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 079614deca3f..efa6ae822ca8 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -5912,9 +5912,15 @@ nfs4_layoutcommit_done(struct rpc_task *task, void *calldata)
 static void nfs4_layoutcommit_release(void *calldata)
 {
         struct nfs4_layoutcommit_data *data = calldata;
+        struct pnfs_layout_segment *lseg, *tmp;
 
         /* Matched by references in pnfs_set_layoutcommit */
-        put_lseg(data->lseg);
+        list_for_each_entry_safe(lseg, tmp, &data->lseg_list, pls_lc_list) {
+                list_del_init(&lseg->pls_lc_list);
+                if (test_and_clear_bit(NFS_LSEG_LAYOUTCOMMIT,
+                                       &lseg->pls_flags))
+                        put_lseg(lseg);
+        }
         put_rpccred(data->cred);
         kfree(data);
 }