From: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx>
The read and write paths do exactly the same thing for the rpc_prepare
rpc_op. This patch combines them together into a single function.
Signed-off-by: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx>
---
fs/nfs/internal.h | 2 ++
fs/nfs/nfs3proc.c | 11 ++---------
fs/nfs/nfs4proc.c | 22 +++-------------------
fs/nfs/pageio.c | 17 +++++++++++++++++
fs/nfs/proc.c | 11 ++---------
fs/nfs/read.c | 19 +++----------------
fs/nfs/write.c | 19 +++++--------------
include/linux/nfs_page.h | 2 ++
include/linux/nfs_xdr.h | 3 +--
9 files changed, 37 insertions(+), 69 deletions(-)
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 7e8d311..105e2b5 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -400,6 +400,8 @@ extern struct nfs_rw_header *nfs_rw_header_alloc(const struct nfs_rw_ops *);
extern void nfs_rw_header_free(struct nfs_pgio_header *);
extern struct nfs_pgio_data *nfs_pgio_data_alloc(struct nfs_pgio_header *, unsigned int);
extern void nfs_pgio_data_release(struct nfs_pgio_data *);
+extern void nfs_pgio_prepare(struct rpc_task *, void *);
+extern void nfs_pgio_release_common(void *);
/* read.c */
extern void nfs_pageio_init_read(struct nfs_pageio_descriptor *pgio,
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index d235369..e7daa42 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -812,7 +812,7 @@ static void nfs3_proc_read_setup(struct nfs_pgio_data *data, struct rpc_message
msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ];
}
-static int nfs3_proc_read_rpc_prepare(struct rpc_task *task, struct nfs_pgio_data *data)
+static int nfs3_proc_pgio_rpc_prepare(struct rpc_task *task, struct nfs_pgio_data *data)
{
rpc_call_start(task);
return 0;
@@ -834,12 +834,6 @@ static void nfs3_proc_write_setup(struct nfs_pgio_data *data, struct rpc_message
msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE];
}
-static int nfs3_proc_write_rpc_prepare(struct rpc_task *task, struct nfs_pgio_data *data)
-{
- rpc_call_start(task);
- return 0;
-}
-
static void nfs3_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data)
{
rpc_call_start(task);
@@ -946,11 +940,10 @@ const struct nfs_rpc_ops nfs_v3_clientops = {
.fsinfo = nfs3_proc_fsinfo,
.pathconf = nfs3_proc_pathconf,
.decode_dirent = nfs3_decode_dirent,
+ .pgio_rpc_prepare = nfs3_proc_pgio_rpc_prepare,
.read_setup = nfs3_proc_read_setup,
- .read_rpc_prepare = nfs3_proc_read_rpc_prepare,
.read_done = nfs3_read_done,
.write_setup = nfs3_proc_write_setup,
- .write_rpc_prepare = nfs3_proc_write_rpc_prepare,
.write_done = nfs3_write_done,
.commit_setup = nfs3_proc_commit_setup,
.commit_rpc_prepare = nfs3_proc_commit_rpc_prepare,
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index e793aa9..44fb93a 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4089,7 +4089,7 @@ static void nfs4_proc_read_setup(struct nfs_pgio_data *data, struct rpc_message
nfs4_init_sequence(&data->args.seq_args, &data->res.seq_res, 0);
}
-static int nfs4_proc_read_rpc_prepare(struct rpc_task *task, struct nfs_pgio_data *data)
+static int nfs4_proc_pgio_rpc_prepare(struct rpc_task *task, struct nfs_pgio_data *data)
{
if (nfs4_setup_sequence(NFS_SERVER(data->header->inode),
&data->args.seq_args,
@@ -4097,7 +4097,7 @@ static int nfs4_proc_read_rpc_prepare(struct rpc_task *task, struct nfs_pgio_dat
task))
return 0;
if (nfs4_set_rw_stateid(&data->args.stateid, data->args.context,
- data->args.lock_context, FMODE_READ) == -EIO)
+ data->args.lock_context, data->header->rw_ops->rw_mode) == -EIO)
return -EIO;
if (unlikely(test_bit(NFS_CONTEXT_BAD, &data->args.context->flags)))
return -EIO;
@@ -4177,21 +4177,6 @@ static void nfs4_proc_write_setup(struct nfs_pgio_data *data, struct rpc_message
nfs4_init_sequence(&data->args.seq_args, &data->res.seq_res, 1);
}
-static int nfs4_proc_write_rpc_prepare(struct rpc_task *task, struct nfs_pgio_data *data)
-{
- if (nfs4_setup_sequence(NFS_SERVER(data->header->inode),
- &data->args.seq_args,
- &data->res.seq_res,
- task))
- return 0;
- if (nfs4_set_rw_stateid(&data->args.stateid, data->args.context,
- data->args.lock_context, FMODE_WRITE) == -EIO)
- return -EIO;
- if (unlikely(test_bit(NFS_CONTEXT_BAD, &data->args.context->flags)))
- return -EIO;
- return 0;
-}
-
static void nfs4_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data)
{
nfs4_setup_sequence(NFS_SERVER(data->inode),
@@ -8432,11 +8417,10 @@ const struct nfs_rpc_ops nfs_v4_clientops = {
.pathconf = nfs4_proc_pathconf,
.set_capabilities = nfs4_server_capabilities,
.decode_dirent = nfs4_decode_dirent,
+ .pgio_rpc_prepare = nfs4_proc_pgio_rpc_prepare,
.read_setup = nfs4_proc_read_setup,
- .read_rpc_prepare = nfs4_proc_read_rpc_prepare,
.read_done = nfs4_read_done,
.write_setup = nfs4_proc_write_setup,
- .write_rpc_prepare = nfs4_proc_write_rpc_prepare,
.write_done = nfs4_write_done,
.commit_setup = nfs4_proc_commit_setup,
.commit_rpc_prepare = nfs4_proc_commit_rpc_prepare,
diff --git a/fs/nfs/pageio.c b/fs/nfs/pageio.c
index b4d6fe4..97a483e 100644
--- a/fs/nfs/pageio.c
+++ b/fs/nfs/pageio.c
@@ -85,3 +85,20 @@ void nfs_pgio_data_release(struct nfs_pgio_data *data)
kfree(data);
}
EXPORT_SYMBOL_GPL(nfs_pgio_data_release);
+
+void nfs_pgio_prepare(struct rpc_task *task, void *calldata)
+{
+ struct nfs_pgio_data *data = calldata;
+ int err;
+ err = NFS_PROTO(data->header->inode)->pgio_rpc_prepare(task, data);
+ if (err)
+ rpc_exit(task, err);
+}
+
+void nfs_pgio_release_common(void *calldata)
+{
+ struct nfs_pgio_data *data = calldata;
+ if (data->header->rw_ops->rw_release)
+ data->header->rw_ops->rw_release(data);
+ nfs_pgio_data_release(data);
+}
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index c54829e..c171ce1 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -599,7 +599,7 @@ static void nfs_proc_read_setup(struct nfs_pgio_data *data, struct rpc_message *
msg->rpc_proc = &nfs_procedures[NFSPROC_READ];
}
-static int nfs_proc_read_rpc_prepare(struct rpc_task *task, struct nfs_pgio_data *data)
+static int nfs_proc_pgio_rpc_prepare(struct rpc_task *task, struct nfs_pgio_data *data)
{
rpc_call_start(task);
return 0;
@@ -621,12 +621,6 @@ static void nfs_proc_write_setup(struct nfs_pgio_data *data, struct rpc_message
msg->rpc_proc = &nfs_procedures[NFSPROC_WRITE];
}
-static int nfs_proc_write_rpc_prepare(struct rpc_task *task, struct nfs_pgio_data *data)
-{
- rpc_call_start(task);
- return 0;
-}
-
static void nfs_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data)
{
BUG();
@@ -734,11 +728,10 @@ const struct nfs_rpc_ops nfs_v2_clientops = {
.fsinfo = nfs_proc_fsinfo,
.pathconf = nfs_proc_pathconf,
.decode_dirent = nfs2_decode_dirent,
+ .pgio_rpc_prepare = nfs_proc_pgio_rpc_prepare,
.read_setup = nfs_proc_read_setup,
- .read_rpc_prepare = nfs_proc_read_rpc_prepare,
.read_done = nfs_read_done,
.write_setup = nfs_proc_write_setup,
- .write_rpc_prepare = nfs_proc_write_rpc_prepare,
.write_done = nfs_write_done,
.commit_setup = nfs_proc_commit_setup,
.commit_rpc_prepare = nfs_proc_commit_rpc_prepare,
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 4cf3577..313835b 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -454,24 +454,10 @@ static void nfs_readpage_result_common(struct rpc_task *task, void *calldata)
nfs_readpage_retry(task, data);
}
-static void nfs_readpage_release_common(void *calldata)
-{
- nfs_pgio_data_release(calldata);
-}
-
-void nfs_read_prepare(struct rpc_task *task, void *calldata)
-{
- struct nfs_pgio_data *data = calldata;
- int err;
- err = NFS_PROTO(data->header->inode)->read_rpc_prepare(task, data);
- if (err)
- rpc_exit(task, err);
-}
-
static const struct rpc_call_ops nfs_read_common_ops = {
- .rpc_call_prepare = nfs_read_prepare,
+ .rpc_call_prepare = nfs_pgio_prepare,
.rpc_call_done = nfs_readpage_result_common,
- .rpc_release = nfs_readpage_release_common,
+ .rpc_release = nfs_pgio_release_common,
};
/*
@@ -636,6 +622,7 @@ void nfs_destroy_readpagecache(void)
}
static const struct nfs_rw_ops nfs_rw_read_ops = {
+ .rw_mode = FMODE_READ,
.rw_alloc_header = nfs_readhdr_alloc,
.rw_free_header = nfs_readhdr_free,
};
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 9c5cde3..b08fb7d 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1248,15 +1248,6 @@ void nfs_pageio_reset_write_mds(struct nfs_pageio_descriptor *pgio)
EXPORT_SYMBOL_GPL(nfs_pageio_reset_write_mds);
-void nfs_write_prepare(struct rpc_task *task, void *calldata)
-{
- struct nfs_pgio_data *data = calldata;
- int err;
- err = NFS_PROTO(data->header->inode)->write_rpc_prepare(task, data);
- if (err)
- rpc_exit(task, err);
-}
-
void nfs_commit_prepare(struct rpc_task *task, void *calldata)
{
struct nfs_commit_data *data = calldata;
@@ -1278,9 +1269,8 @@ static void nfs_writeback_done_common(struct rpc_task *task, void *calldata)
nfs_writeback_done(task, data);
}
-static void nfs_writeback_release_common(void *calldata)
+static void nfs_writeback_release_common(struct nfs_pgio_data *data)
{
- struct nfs_pgio_data *data = calldata;
struct nfs_pgio_header *hdr = data->header;
int status = data->task.tk_status;
@@ -1294,13 +1284,12 @@ static void nfs_writeback_release_common(void *calldata)
set_bit(NFS_IOHDR_NEED_RESCHED, &hdr->flags);
spin_unlock(&hdr->lock);
}
- nfs_pgio_data_release(data);
}
static const struct rpc_call_ops nfs_write_common_ops = {
- .rpc_call_prepare = nfs_write_prepare,
+ .rpc_call_prepare = nfs_pgio_prepare,
.rpc_call_done = nfs_writeback_done_common,
- .rpc_release = nfs_writeback_release_common,
+ .rpc_release = nfs_pgio_release_common,
};
/*
@@ -1918,6 +1907,8 @@ void nfs_destroy_writepagecache(void)
}
static const struct nfs_rw_ops nfs_rw_write_ops = {
+ .rw_mode = FMODE_WRITE,
.rw_alloc_header = nfs_writehdr_alloc,
.rw_free_header = nfs_writehdr_free,
+ .rw_release = nfs_writeback_release_common,
};
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index 5948125..da00a4d 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -53,8 +53,10 @@ struct nfs_pageio_ops {
};
struct nfs_rw_ops {
+ const fmode_t rw_mode;
struct nfs_rw_header *(*rw_alloc_header)(void);
void (*rw_free_header)(struct nfs_rw_header *);
+ void (*rw_release)(struct nfs_pgio_data *);
};
struct nfs_pageio_descriptor {
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index a1b91b6..adef7bd 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1429,11 +1429,10 @@ struct nfs_rpc_ops {
struct nfs_pathconf *);
int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
+ int (*pgio_rpc_prepare)(struct rpc_task *, struct nfs_pgio_data *);
void (*read_setup) (struct nfs_pgio_data *, struct rpc_message *);
- int (*read_rpc_prepare)(struct rpc_task *, struct nfs_pgio_data *);
int (*read_done) (struct rpc_task *, struct nfs_pgio_data *);
void (*write_setup) (struct nfs_pgio_data *, struct rpc_message *);
- int (*write_rpc_prepare)(struct rpc_task *, struct nfs_pgio_data *);
int (*write_done) (struct rpc_task *, struct nfs_pgio_data *);
void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
--
1.9.2
--
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