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NFS: create nfs_commit_completion_ops

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Factors out the code that needs to change when directio
starts using these code paths.

Signed-off-by: Fred Isaman <iisaman@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Fred Isaman
2012-04-20 14:47:54 -04:00
committed by Trond Myklebust
parent ea2cf2282b
commit f453a54a01
4 changed files with 36 additions and 21 deletions
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31
fs/nfs/write.c
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@@ -46,6 +46,7 @@ static void nfs_redirty_request(struct nfs_page *req);
static const struct rpc_call_ops nfs_write_common_ops;
static const struct rpc_call_ops nfs_commit_ops;
static const struct nfs_pgio_completion_ops nfs_async_write_completion_ops;
static const struct nfs_commit_completion_ops nfs_commit_completion_ops;
static struct kmem_cache *nfs_wdata_cachep;
static mempool_t *nfs_wdata_mempool;
@@ -505,6 +506,7 @@ static void nfs_init_cinfo_from_inode(struct nfs_commit_info *cinfo,
cinfo->lock = &inode->i_lock;
cinfo->mds = &NFS_I(inode)->commit_info;
cinfo->ds = pnfs_get_ds_info(inode);
cinfo->completion_ops = &nfs_commit_completion_ops;
}
void nfs_init_cinfo(struct nfs_commit_info *cinfo,
@@ -1358,13 +1360,12 @@ static int nfs_commit_set_lock(struct nfs_inode *nfsi, int may_wait)
return (ret < 0) ? ret : 1;
}
void nfs_commit_clear_lock(struct nfs_inode *nfsi)
static void nfs_commit_clear_lock(struct nfs_inode *nfsi)
{
clear_bit(NFS_INO_COMMIT, &nfsi->flags);
smp_mb__after_clear_bit();
wake_up_bit(&nfsi->flags, NFS_INO_COMMIT);
}
EXPORT_SYMBOL_GPL(nfs_commit_clear_lock);
void nfs_commitdata_release(struct nfs_commit_data *data)
{
@@ -1413,8 +1414,9 @@ EXPORT_SYMBOL_GPL(nfs_initiate_commit);
* Set up the argument/result storage required for the RPC call.
*/
void nfs_init_commit(struct nfs_commit_data *data,
struct list_head *head,
struct pnfs_layout_segment *lseg)
struct list_head *head,
struct pnfs_layout_segment *lseg,
struct nfs_commit_info *cinfo)
{
struct nfs_page *first = nfs_list_entry(head->next);
struct inode *inode = first->wb_context->dentry->d_inode;
@@ -1428,6 +1430,7 @@ void nfs_init_commit(struct nfs_commit_data *data,
data->cred = first->wb_context->cred;
data->lseg = lseg; /* reference transferred */
data->mds_ops = &nfs_commit_ops;
data->completion_ops = cinfo->completion_ops;
data->args.fh = NFS_FH(data->inode);
/* Note: we always request a commit of the entire inode */
@@ -1473,11 +1476,12 @@ nfs_commit_list(struct inode *inode, struct list_head *head, int how,
goto out_bad;
/* Set up the argument struct */
nfs_init_commit(data, head, NULL);
nfs_init_commit(data, head, NULL, cinfo);
atomic_inc(&cinfo->mds->rpcs_out);
return nfs_initiate_commit(NFS_CLIENT(inode), data, data->mds_ops, how);
out_bad:
nfs_retry_commit(head, NULL, cinfo);
nfs_commit_clear_lock(NFS_I(inode));
cinfo->completion_ops->error_cleanup(NFS_I(inode));
return -ENOMEM;
}
@@ -1495,10 +1499,11 @@ static void nfs_commit_done(struct rpc_task *task, void *calldata)
NFS_PROTO(data->inode)->commit_done(task, data);
}
void nfs_commit_release_pages(struct nfs_commit_data *data)
static void nfs_commit_release_pages(struct nfs_commit_data *data)
{
struct nfs_page *req;
int status = data->task.tk_status;
struct nfs_commit_info cinfo;
while (!list_empty(&data->pages)) {
req = nfs_list_entry(data->pages.next);
@@ -1531,15 +1536,16 @@ void nfs_commit_release_pages(struct nfs_commit_data *data)
next:
nfs_unlock_request(req);
}
nfs_init_cinfo(&cinfo, data->inode, data->dreq);
if (atomic_dec_and_test(&cinfo.mds->rpcs_out))
nfs_commit_clear_lock(NFS_I(data->inode));
}
EXPORT_SYMBOL_GPL(nfs_commit_release_pages);
static void nfs_commit_release(void *calldata)
{
struct nfs_commit_data *data = calldata;
nfs_commit_release_pages(data);
nfs_commit_clear_lock(NFS_I(data->inode));
data->completion_ops->completion(data);
nfs_commitdata_release(calldata);
}
@@ -1549,6 +1555,11 @@ static const struct rpc_call_ops nfs_commit_ops = {
.rpc_release = nfs_commit_release,
};
static const struct nfs_commit_completion_ops nfs_commit_completion_ops = {
.completion = nfs_commit_release_pages,
.error_cleanup = nfs_commit_clear_lock,
};
static int nfs_generic_commit_list(struct inode *inode, struct list_head *head,
int how, struct nfs_commit_info *cinfo)
{