NFS: Create a common multiple_pgios() function

Once again, these two functions look identical in the read and write
case.  Time to combine them together!

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

4 files changed, 25 insertions, 60 deletions

diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index be4f2a7e9178..886273a8916b 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -243,6 +243,7 @@ void nfs_pgio_data_release(struct nfs_pgio_data *);
 int nfs_generic_pgio(struct nfs_pageio_descriptor *, struct nfs_pgio_header *);
 int nfs_initiate_pgio(struct rpc_clnt *, struct nfs_pgio_data *,
                       const struct rpc_call_ops *, int, int);
+int nfs_do_multiple_pgios(struct list_head *, const struct rpc_call_ops *, int);
 
 static inline void nfs_iocounter_init(struct nfs_io_counter *c)
 {
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index ab5b1850ca4f..2471e0278811 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -493,6 +493,27 @@ out:
 }
 EXPORT_SYMBOL_GPL(nfs_initiate_pgio);
 
+int nfs_do_multiple_pgios(struct list_head *head,
+                                 const struct rpc_call_ops *call_ops,
+                                 int how)
+{
+        struct nfs_pgio_data *data;
+        int ret = 0;
+
+        while (!list_empty(head)) {
+                int ret2;
+
+                data = list_first_entry(head, struct nfs_pgio_data, list);
+                list_del_init(&data->list);
+
+                ret2 = nfs_initiate_pgio(NFS_CLIENT(data->header->inode),
+                                         data, call_ops, how, 0);
+                if (ret == 0)
+                         ret = ret2;
+        }
+        return ret;
+}
+
 /**
  * nfs_pgio_error - Clean up from a pageio error
  * @desc: IO descriptor
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 0359b0d76ef6..b834d458a2b6 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -161,34 +161,6 @@ static void nfs_initiate_read(struct nfs_pgio_data *data, struct rpc_message *ms
         NFS_PROTO(inode)->read_setup(data, msg);
 }
 
-static int nfs_do_read(struct nfs_pgio_data *data,
-                const struct rpc_call_ops *call_ops)
-{
-        struct inode *inode = data->header->inode;
-
-        return nfs_initiate_pgio(NFS_CLIENT(inode), data, call_ops, 0, 0);
-}
-
-static int
-nfs_do_multiple_reads(struct list_head *head,
-                const struct rpc_call_ops *call_ops)
-{
-        struct nfs_pgio_data *data;
-        int ret = 0;
-
-        while (!list_empty(head)) {
-                int ret2;
-
-                data = list_first_entry(head, struct nfs_pgio_data, list);
-                list_del_init(&data->list);
-
-                ret2 = nfs_do_read(data, call_ops);
-                if (ret == 0)
-                        ret = ret2;
-        }
-        return ret;
-}
-
 static void
 nfs_async_read_error(struct list_head *head)
 {
@@ -222,8 +194,8 @@ static int nfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc)
         atomic_inc(&hdr->refcnt);
         ret = nfs_generic_pgio(desc, hdr);
         if (ret == 0)
-                ret = nfs_do_multiple_reads(&hdr->rpc_list,
-                                            desc->pg_rpc_callops);
+                ret = nfs_do_multiple_pgios(&hdr->rpc_list,
+                                            desc->pg_rpc_callops, 0);
         if (atomic_dec_and_test(&hdr->refcnt))
                 hdr->completion_ops->completion(hdr);
         return ret;
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index e46a1fc6c1fe..d3fa181053ad 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -945,35 +945,6 @@ static void nfs_initiate_write(struct nfs_pgio_data *data, struct rpc_message *m
                                  &task_setup_data->rpc_client, msg, data);
 }
 
-static int nfs_do_write(struct nfs_pgio_data *data,
-                const struct rpc_call_ops *call_ops,
-                int how)
-{
-        struct inode *inode = data->header->inode;
-
-        return nfs_initiate_pgio(NFS_CLIENT(inode), data, call_ops, how, 0);
-}
-
-static int nfs_do_multiple_writes(struct list_head *head,
-                const struct rpc_call_ops *call_ops,
-                int how)
-{
-        struct nfs_pgio_data *data;
-        int ret = 0;
-
-        while (!list_empty(head)) {
-                int ret2;
-
-                data = list_first_entry(head, struct nfs_pgio_data, list);
-                list_del_init(&data->list);
-                
-                ret2 = nfs_do_write(data, call_ops, how);
-                 if (ret == 0)
-                         ret = ret2;
-        }
-        return ret;
-}
-
 /* If a nfs_flush_* function fails, it should remove reqs from @head and
  * call this on each, which will prepare them to be retried on next
  * writeback using standard nfs.
@@ -1018,7 +989,7 @@ static int nfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc)
         atomic_inc(&hdr->refcnt);
         ret = nfs_generic_pgio(desc, hdr);
         if (ret == 0)
-                ret = nfs_do_multiple_writes(&hdr->rpc_list,
+                ret = nfs_do_multiple_pgios(&hdr->rpc_list,
                                              desc->pg_rpc_callops,
                                              desc->pg_ioflags);
         if (atomic_dec_and_test(&hdr->refcnt))