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NFS: Cleanup of NFS read code

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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>
This commit is contained in:
Trond Myklebust
2006-03-20 13:44:27 -05:00
parent 788e7a89a0
commit ec06c096ed
7 changed files with 77 additions and 89 deletions
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25
fs/nfs/proc.c
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@@ -613,10 +613,8 @@ nfs_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
extern u32 * nfs_decode_dirent(u32 *, struct nfs_entry *, int);
static void nfs_read_done(struct rpc_task *task, void *calldata)
static int nfs_read_done(struct rpc_task *task, struct nfs_read_data *data)
{
struct nfs_read_data *data = calldata;
if (task->tk_status >= 0) {
nfs_refresh_inode(data->inode, data->res.fattr);
/* Emulate the eof flag, which isn't normally needed in NFSv2
@@ -625,20 +623,11 @@ static void nfs_read_done(struct rpc_task *task, void *calldata)
if (data->args.offset + data->args.count >= data->res.fattr->size)
data->res.eof = 1;
}
nfs_readpage_result(task, calldata);
return 0;
}
static const struct rpc_call_ops nfs_read_ops = {
.rpc_call_done = nfs_read_done,
.rpc_release = nfs_readdata_release,
};
static void
nfs_proc_read_setup(struct nfs_read_data *data)
static void nfs_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 = &nfs_procedures[NFSPROC_READ],
.rpc_argp = &data->args,
@@ -646,12 +635,7 @@ nfs_proc_read_setup(struct nfs_read_data *data)
.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, &nfs_read_ops, data);
rpc_call_setup(task, &msg, 0);
rpc_call_setup(&data->task, &msg, 0);
}
static int nfs_write_done(struct rpc_task *task, struct nfs_write_data *data)
@@ -720,6 +704,7 @@ struct nfs_rpc_ops nfs_v2_clientops = {
.pathconf = nfs_proc_pathconf,
.decode_dirent = nfs_decode_dirent,
.read_setup = nfs_proc_read_setup,
.read_done = nfs_read_done,
.write_setup = nfs_proc_write_setup,
.write_done = nfs_write_done,
.commit_setup = nfs_proc_commit_setup,