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authorFred Isaman <iisaman@netapp.com>2012-04-20 14:47:54 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-04-27 14:10:38 -0400
commitf453a54a01c7c0453ad9550906e3d2663dd486ac (patch)
tree1eac38e7e186ea0339066e7da417a20e0274b2c0 /fs
parentea2cf2282b4278461266013e9c002ee1c66700ff (diff)
NFS: create nfs_commit_completion_ops
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>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfs/internal.h5
-rw-r--r--fs/nfs/nfs4filelayout.c12
-rw-r--r--fs/nfs/write.c31
3 files changed, 27 insertions, 21 deletions
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 145e9e7dc8c..137f5cd7143 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -344,13 +344,12 @@ extern int nfs_initiate_commit(struct rpc_clnt *clnt,
int how);
extern void nfs_init_commit(struct nfs_commit_data *data,
struct list_head *head,
- struct pnfs_layout_segment *lseg);
+ struct pnfs_layout_segment *lseg,
+ struct nfs_commit_info *cinfo);
void nfs_retry_commit(struct list_head *page_list,
struct pnfs_layout_segment *lseg,
struct nfs_commit_info *cinfo);
-void nfs_commit_clear_lock(struct nfs_inode *nfsi);
void nfs_commitdata_release(struct nfs_commit_data *data);
-void nfs_commit_release_pages(struct nfs_commit_data *data);
void nfs_request_add_commit_list(struct nfs_page *req, struct list_head *dst,
struct nfs_commit_info *cinfo);
void nfs_request_remove_commit_list(struct nfs_page *req,
diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c
index fe2cb55ca6b..26d1da48676 100644
--- a/fs/nfs/nfs4filelayout.c
+++ b/fs/nfs/nfs4filelayout.c
@@ -347,12 +347,8 @@ static void filelayout_commit_count_stats(struct rpc_task *task, void *data)
static void filelayout_commit_release(void *calldata)
{
struct nfs_commit_data *data = calldata;
- struct nfs_commit_info cinfo;
- nfs_commit_release_pages(data);
- 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));
+ data->completion_ops->completion(data);
put_lseg(data->lseg);
nfs_commitdata_release(data);
}
@@ -1108,7 +1104,7 @@ filelayout_commit_pagelist(struct inode *inode, struct list_head *mds_pages,
nreq += alloc_ds_commits(cinfo, &list);
if (nreq == 0) {
- nfs_commit_clear_lock(NFS_I(inode));
+ cinfo->completion_ops->error_cleanup(NFS_I(inode));
goto out;
}
@@ -1117,14 +1113,14 @@ filelayout_commit_pagelist(struct inode *inode, struct list_head *mds_pages,
list_for_each_entry_safe(data, tmp, &list, pages) {
list_del_init(&data->pages);
if (!data->lseg) {
- nfs_init_commit(data, mds_pages, NULL);
+ nfs_init_commit(data, mds_pages, NULL, cinfo);
nfs_initiate_commit(NFS_CLIENT(inode), data,
data->mds_ops, how);
} else {
struct pnfs_commit_bucket *buckets;
buckets = cinfo->ds->buckets;
- nfs_init_commit(data, &buckets[data->ds_commit_index].committing, data->lseg);
+ nfs_init_commit(data, &buckets[data->ds_commit_index].committing, data->lseg, cinfo);
filelayout_initiate_commit(data, how);
}
}
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 18bf7005527..333d01d2629 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -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)
{