[PATCH 2/6] nfs: remove user_addr and user_count from nfs_direct_req

Chuck Lever
2006-05-19T18:02:07Z

These fields won't fit the iovec API, and are no longer used for anything
but passing a parameter to nfs_direct_read/write_schedule. Make the
parameters explicit, and remove the fields from nfs_direct_req.

Signed-off-by: Chuck Lever <cel@netapp.com>
---

fs/nfs/direct.c | 29 ++++++++---------------------
1 files changed, 8 insertions(+), 21 deletions(-)

diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 0fde4bf..aef0b98 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -73,9 +73,6 @@ struct nfs_direct_req {
struct nfs_open_context *ctx; /* file open context info */
struct kiocb * iocb; /* controlling i/o request */
struct inode * inode; /* target file of i/o */
- unsigned long user_addr; /* location of user's buffer */
- size_t user_count; /* total bytes to move */
- loff_t pos; /* starting offset in file */
struct page ** pages; /* pages in our buffer */
unsigned int npages; /* count of pages */

@@ -331,19 +328,17 @@ static const struct rpc_call_ops nfs_rea
* For each nfs_read_data struct that was allocated on the list, dispatch
* an NFS READ operation
*/
-static void nfs_direct_read_schedule(struct nfs_direct_req *dreq)
+static void nfs_direct_read_schedule(struct nfs_direct_req *dreq, unsigned long user_addr, size_t count, loff_t pos)
{
struct nfs_open_context *ctx = dreq->ctx;
struct inode *inode = ctx->dentry->d_inode;
struct list_head *list = &dreq->list;
struct page **pages = dreq->pages;
- size_t count = dreq->user_count;
- loff_t pos = dreq->pos;
size_t rsize = NFS_SERVER(inode)->rsize;
unsigned int curpage, pgbase;

curpage = 0;
- pgbase = dreq->user_addr & ~PAGE_MASK;
+ pgbase = user_addr & ~PAGE_MASK;
do {
struct nfs_read_data *data;
size_t bytes;
@@ -407,9 +402,6 @@ static ssize_t nfs_direct_read(struct ki
if (!dreq)
return -ENOMEM;

- dreq->user_addr = user_addr;
- dreq->user_count = count;
- dreq->pos = pos;
dreq->pages = pages;
dreq->npages = nr_pages;
dreq->inode = inode;
@@ -419,7 +411,7 @@ static ssize_t nfs_direct_read(struct ki

nfs_add_stats(inode, NFSIOS_DIRECTREADBYTES, count);
rpc_clnt_sigmask(clnt, &oldset);
- nfs_direct_read_schedule(dreq);
+ nfs_direct_read_schedule(dreq, user_addr, count, pos);
result = nfs_direct_wait(dreq);
rpc_clnt_sigunmask(clnt, &oldset);

@@ -521,8 +513,8 @@ static void nfs_direct_commit_schedule(s
data->cred = dreq->ctx->cred;

data->args.fh = NFS_FH(data->inode);
- data->args.offset = dreq->pos;
- data->args.count = dreq->user_count;
+ data->args.offset = 0;
+ data->args.count = 0;
data->res.count = 0;
data->res.fattr = &data->fattr;
data->res.verf = &data->verf;
@@ -680,19 +672,17 @@ static const struct rpc_call_ops nfs_wri
* For each nfs_write_data struct that was allocated on the list, dispatch
* an NFS WRITE operation
*/
-static void nfs_direct_write_schedule(struct nfs_direct_req *dreq, int sync)
+static void nfs_direct_write_schedule(struct nfs_direct_req *dreq, unsigned long user_addr, size_t count, loff_t pos, int sync)
{
struct nfs_open_context *ctx = dreq->ctx;
struct inode *inode = ctx->dentry->d_inode;
struct list_head *list = &dreq->list;
struct page **pages = dreq->pages;
- size_t count = dreq->user_count;
- loff_t pos = dreq->pos;
size_t wsize = NFS_SERVER(inode)->wsize;
unsigned int curpage, pgbase;

curpage = 0;
- pgbase = dreq->user_addr & ~PAGE_MASK;
+ pgbase = user_addr & ~PAGE_MASK;
do {
struct nfs_write_data *data;
size_t bytes;
@@ -761,9 +751,6 @@ static ssize_t nfs_direct_write(struct k
if (dreq->commit_data == NULL || count < wsize)
sync = FLUSH_STABLE;

- dreq->user_addr = user_addr;
- dreq->user_count = count;
- dreq->pos = pos;
dreq->pages = pages;
dreq->npages = nr_pages;
dreq->inode = inode;
@@ -776,7 +763,7 @@ static ssize_t nfs_direct_write(struct k
nfs_begin_data_update(inode);

rpc_clnt_sigmask(clnt, &oldset);
- nfs_direct_write_schedule(dreq, sync);
+ nfs_direct_write_schedule(dreq, user_addr, count, pos, sync);
result = nfs_direct_wait(dreq);
rpc_clnt_sigunmask(clnt, &oldset);