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NFS: Clean up new multi-segment direct I/O changes 

Simplify calling sequence of nfs_direct_{read,write}_schedule(), and
rename them to reflect their new role.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever 2007-11-12 12:17:03 -05:00 committed by Trond Myklebust
parent b9148c6b80
commit 02fe494619
1 changed files with 13 additions and 9 deletions
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22
fs/nfs/direct.c
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@ -263,10 +263,14 @@ static const struct rpc_call_ops nfs_read_direct_ops = {
* handled automatically by nfs_direct_read_result(). Otherwise, if
* no requests have been sent, just return an error.
*/
static ssize_t nfs_direct_read_schedule(struct nfs_direct_req *dreq, unsigned long user_addr, size_t count, loff_t pos)
static ssize_t nfs_direct_read_schedule_segment(struct nfs_direct_req *dreq,
const struct iovec *iov,
loff_t pos)
{
struct nfs_open_context *ctx = dreq->ctx;
struct inode *inode = ctx->path.dentry->d_inode;
unsigned long user_addr = (unsigned long)iov->iov_base;
size_t count = iov->iov_len;
size_t rsize = NFS_SERVER(inode)->rsize;
unsigned int pgbase;
int result;
@ -363,9 +367,7 @@ static ssize_t nfs_direct_read_schedule_iovec(struct nfs_direct_req *dreq,
for (seg = 0; seg < nr_segs; seg++) {
const struct iovec *vec = &iov[seg];
result = nfs_direct_read_schedule(dreq,
(unsigned long)vec->iov_base,
vec->iov_len, pos);
result = nfs_direct_read_schedule_segment(dreq, vec, pos);
if (result < 0)
break;
requested_bytes += result;
@ -631,10 +633,14 @@ static const struct rpc_call_ops nfs_write_direct_ops = {
* handled automatically by nfs_direct_write_result(). Otherwise, if
* no requests have been sent, just return an error.
*/
static ssize_t nfs_direct_write_schedule(struct nfs_direct_req *dreq, unsigned long user_addr, size_t count, loff_t pos, int sync)
static ssize_t nfs_direct_write_schedule_segment(struct nfs_direct_req *dreq,
const struct iovec *iov,
loff_t pos, int sync)
{
struct nfs_open_context *ctx = dreq->ctx;
struct inode *inode = ctx->path.dentry->d_inode;
unsigned long user_addr = (unsigned long)iov->iov_base;
size_t count = iov->iov_len;
size_t wsize = NFS_SERVER(inode)->wsize;
unsigned int pgbase;
int result;
@ -735,10 +741,8 @@ static ssize_t nfs_direct_write_schedule_iovec(struct nfs_direct_req *dreq,
for (seg = 0; seg < nr_segs; seg++) {
const struct iovec *vec = &iov[seg];
result = nfs_direct_write_schedule(dreq,
(unsigned long)vec->iov_base,
vec->iov_len,
pos, sync);
result = nfs_direct_write_schedule_segment(dreq, vec,
pos, sync);
if (result < 0)
break;
requested_bytes += result;