NFS: Cleanup of NFS read code
Same callback hierarchy inversion as for the NFS write calls. This patch is
not strictly speaking needed by the O_DIRECT code, but avoids confusing
differences between the asynchronous read and write code.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index c4f7de8..cf186f0 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -811,29 +811,18 @@
extern u32 *nfs3_decode_dirent(u32 *, struct nfs_entry *, int);
-static void nfs3_read_done(struct rpc_task *task, void *calldata)
+static int nfs3_read_done(struct rpc_task *task, struct nfs_read_data *data)
{
- struct nfs_read_data *data = calldata;
-
if (nfs3_async_handle_jukebox(task, data->inode))
- return;
+ return -EAGAIN;
/* Call back common NFS readpage processing */
if (task->tk_status >= 0)
nfs_refresh_inode(data->inode, &data->fattr);
- nfs_readpage_result(task, calldata);
+ return 0;
}
-static const struct rpc_call_ops nfs3_read_ops = {
- .rpc_call_done = nfs3_read_done,
- .rpc_release = nfs_readdata_release,
-};
-
-static void
-nfs3_proc_read_setup(struct nfs_read_data *data)
+static void nfs3_proc_read_setup(struct nfs_read_data *data)
{
- struct rpc_task *task = &data->task;
- struct inode *inode = data->inode;
- int flags;
struct rpc_message msg = {
.rpc_proc = &nfs3_procedures[NFS3PROC_READ],
.rpc_argp = &data->args,
@@ -841,12 +830,7 @@
.rpc_cred = data->cred,
};
- /* N.B. Do we need to test? Never called for swapfile inode */
- flags = RPC_TASK_ASYNC | (IS_SWAPFILE(inode)? NFS_RPC_SWAPFLAGS : 0);
-
- /* Finalize the task. */
- rpc_init_task(task, NFS_CLIENT(inode), flags, &nfs3_read_ops, data);
- rpc_call_setup(task, &msg, 0);
+ rpc_call_setup(&data->task, &msg, 0);
}
static int nfs3_write_done(struct rpc_task *task, struct nfs_write_data *data)
@@ -935,6 +919,7 @@
.pathconf = nfs3_proc_pathconf,
.decode_dirent = nfs3_decode_dirent,
.read_setup = nfs3_proc_read_setup,
+ .read_done = nfs3_read_done,
.write_setup = nfs3_proc_write_setup,
.write_done = nfs3_write_done,
.commit_setup = nfs3_proc_commit_setup,