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NFS: Create a common read and write data struct

Browse source 
At this point, the only difference between nfs_read_data and
nfs_write_data is the write verifier.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Anna Schumaker 2014-05-06 09:12:26 -04:00 • committed by Trond Myklebust
parent 9137bdf3d2
commit 9c7e1b3d50
17 changed files with 150 additions and 164 deletions
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36
fs/nfs/write.c
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@ -88,10 +88,10 @@ struct nfs_write_header *nfs_writehdr_alloc(void)
}
EXPORT_SYMBOL_GPL(nfs_writehdr_alloc);
static struct nfs_write_data *nfs_writedata_alloc(struct nfs_pgio_header *hdr,
static struct nfs_pgio_data *nfs_writedata_alloc(struct nfs_pgio_header *hdr,
unsigned int pagecount)
{
struct nfs_write_data *data, *prealloc;
struct nfs_pgio_data *data, *prealloc;
prealloc = &container_of(hdr, struct nfs_write_header, header)->rpc_data;
if (prealloc->header == NULL)
@ -120,7 +120,7 @@ void nfs_writehdr_free(struct nfs_pgio_header *hdr)
}
EXPORT_SYMBOL_GPL(nfs_writehdr_free);
void nfs_writedata_release(struct nfs_write_data *wdata)
void nfs_writedata_release(struct nfs_pgio_data *wdata)
{
struct nfs_pgio_header *hdr = wdata->header;
struct nfs_write_header *write_header = container_of(hdr, struct nfs_write_header, header);
@ -582,7 +582,7 @@ nfs_clear_request_commit(struct nfs_page *req)
}
static inline
int nfs_write_need_commit(struct nfs_write_data *data)
int nfs_write_need_commit(struct nfs_pgio_data *data)
{
if (data->verf.committed == NFS_DATA_SYNC)
return data->header->lseg == NULL;
@ -613,7 +613,7 @@ nfs_clear_request_commit(struct nfs_page *req)
}
static inline
int nfs_write_need_commit(struct nfs_write_data *data)
int nfs_write_need_commit(struct nfs_pgio_data *data)
{
return 0;
}
@ -990,7 +990,7 @@ static int flush_task_priority(int how)
}
int nfs_initiate_write(struct rpc_clnt *clnt,
struct nfs_write_data *data,
struct nfs_pgio_data *data,
const struct rpc_call_ops *call_ops,
int how, int flags)
{
@ -1047,7 +1047,7 @@ EXPORT_SYMBOL_GPL(nfs_initiate_write);
/*
* Set up the argument/result storage required for the RPC call.
*/
static void nfs_write_rpcsetup(struct nfs_write_data *data,
static void nfs_write_rpcsetup(struct nfs_pgio_data *data,
unsigned int count, unsigned int offset,
int how, struct nfs_commit_info *cinfo)
{
@ -1082,7 +1082,7 @@ static void nfs_write_rpcsetup(struct nfs_write_data *data,
nfs_fattr_init(&data->fattr);
}
static int nfs_do_write(struct nfs_write_data *data,
static int nfs_do_write(struct nfs_pgio_data *data,
const struct rpc_call_ops *call_ops,
int how)
{
@ -1095,13 +1095,13 @@ static int nfs_do_multiple_writes(struct list_head *head,
const struct rpc_call_ops *call_ops,
int how)
{
struct nfs_write_data *data;
struct nfs_pgio_data *data;
int ret = 0;
while (!list_empty(head)) {
int ret2;
data = list_first_entry(head, struct nfs_write_data, list);
data = list_first_entry(head, struct nfs_pgio_data, list);
list_del_init(&data->list);
ret2 = nfs_do_write(data, call_ops, how);
@ -1144,8 +1144,8 @@ static void nfs_flush_error(struct nfs_pageio_descriptor *desc,
{
set_bit(NFS_IOHDR_REDO, &hdr->flags);
while (!list_empty(&hdr->rpc_list)) {
struct nfs_write_data *data = list_first_entry(&hdr->rpc_list,
struct nfs_write_data, list);
struct nfs_pgio_data *data = list_first_entry(&hdr->rpc_list,
struct nfs_pgio_data, list);
list_del(&data->list);
nfs_writedata_release(data);
}
@ -1161,7 +1161,7 @@ static int nfs_flush_multi(struct nfs_pageio_descriptor *desc,
{
struct nfs_page *req = hdr->req;
struct page *page = req->wb_page;
struct nfs_write_data *data;
struct nfs_pgio_data *data;
size_t wsize = desc->pg_bsize, nbytes;
unsigned int offset;
int requests = 0;
@ -1211,7 +1211,7 @@ static int nfs_flush_one(struct nfs_pageio_descriptor *desc,
{
struct nfs_page *req;
struct page **pages;
struct nfs_write_data *data;
struct nfs_pgio_data *data;
struct list_head *head = &desc->pg_list;
struct nfs_commit_info cinfo;
@ -1305,7 +1305,7 @@ EXPORT_SYMBOL_GPL(nfs_pageio_reset_write_mds);
void nfs_write_prepare(struct rpc_task *task, void *calldata)
{
struct nfs_write_data *data = calldata;
struct nfs_pgio_data *data = calldata;
int err;
err = NFS_PROTO(data->header->inode)->write_rpc_prepare(task, data);
if (err)
@ -1328,14 +1328,14 @@ void nfs_commit_prepare(struct rpc_task *task, void *calldata)
*/
static void nfs_writeback_done_common(struct rpc_task *task, void *calldata)
{
struct nfs_write_data *data = calldata;
struct nfs_pgio_data *data = calldata;
nfs_writeback_done(task, data);
}
static void nfs_writeback_release_common(void *calldata)
{
struct nfs_write_data *data = calldata;
struct nfs_pgio_data *data = calldata;
struct nfs_pgio_header *hdr = data->header;
int status = data->task.tk_status;
@ -1386,7 +1386,7 @@ static int nfs_should_remove_suid(const struct inode *inode)
/*
* This function is called when the WRITE call is complete.
*/
void nfs_writeback_done(struct rpc_task *task, struct nfs_write_data *data)
void nfs_writeback_done(struct rpc_task *task, struct nfs_pgio_data *data)
{
struct nfs_pgio_args *argp = &data->args;
struct nfs_pgio_res *resp = &data->res;