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-rw-r--r--fs/nfs/nfs3proc.c246
1 files changed, 133 insertions, 113 deletions
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index ed67567f0556..cf186f0d2b3b 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -19,6 +19,8 @@
#include <linux/smp_lock.h>
#include <linux/nfs_mount.h>
+#include "iostat.h"
+
#define NFSDBG_FACILITY NFSDBG_PROC
extern struct rpc_procinfo nfs3_procedures[];
@@ -41,27 +43,14 @@ nfs3_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags)
return res;
}
-static inline int
-nfs3_rpc_call_wrapper(struct rpc_clnt *clnt, u32 proc, void *argp, void *resp, int flags)
-{
- struct rpc_message msg = {
- .rpc_proc = &clnt->cl_procinfo[proc],
- .rpc_argp = argp,
- .rpc_resp = resp,
- };
- return nfs3_rpc_wrapper(clnt, &msg, flags);
-}
-
-#define rpc_call(clnt, proc, argp, resp, flags) \
- nfs3_rpc_call_wrapper(clnt, proc, argp, resp, flags)
-#define rpc_call_sync(clnt, msg, flags) \
- nfs3_rpc_wrapper(clnt, msg, flags)
+#define rpc_call_sync(clnt, msg, flags) nfs3_rpc_wrapper(clnt, msg, flags)
static int
-nfs3_async_handle_jukebox(struct rpc_task *task)
+nfs3_async_handle_jukebox(struct rpc_task *task, struct inode *inode)
{
if (task->tk_status != -EJUKEBOX)
return 0;
+ nfs_inc_stats(inode, NFSIOS_DELAY);
task->tk_status = 0;
rpc_restart_call(task);
rpc_delay(task, NFS_JUKEBOX_RETRY_TIME);
@@ -72,14 +61,21 @@ static int
do_proc_get_root(struct rpc_clnt *client, struct nfs_fh *fhandle,
struct nfs_fsinfo *info)
{
+ struct rpc_message msg = {
+ .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO],
+ .rpc_argp = fhandle,
+ .rpc_resp = info,
+ };
int status;
dprintk("%s: call fsinfo\n", __FUNCTION__);
nfs_fattr_init(info->fattr);
- status = rpc_call(client, NFS3PROC_FSINFO, fhandle, info, 0);
+ status = rpc_call_sync(client, &msg, 0);
dprintk("%s: reply fsinfo: %d\n", __FUNCTION__, status);
if (!(info->fattr->valid & NFS_ATTR_FATTR)) {
- status = rpc_call(client, NFS3PROC_GETATTR, fhandle, info->fattr, 0);
+ msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR];
+ msg.rpc_resp = info->fattr;
+ status = rpc_call_sync(client, &msg, 0);
dprintk("%s: reply getattr: %d\n", __FUNCTION__, status);
}
return status;
@@ -107,12 +103,16 @@ static int
nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
struct nfs_fattr *fattr)
{
+ struct rpc_message msg = {
+ .rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR],
+ .rpc_argp = fhandle,
+ .rpc_resp = fattr,
+ };
int status;
dprintk("NFS call getattr\n");
nfs_fattr_init(fattr);
- status = rpc_call(server->client, NFS3PROC_GETATTR,
- fhandle, fattr, 0);
+ status = rpc_call_sync(server->client, &msg, 0);
dprintk("NFS reply getattr: %d\n", status);
return status;
}
@@ -126,11 +126,16 @@ nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
.fh = NFS_FH(inode),
.sattr = sattr,
};
+ struct rpc_message msg = {
+ .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR],
+ .rpc_argp = &arg,
+ .rpc_resp = fattr,
+ };
int status;
dprintk("NFS call setattr\n");
nfs_fattr_init(fattr);
- status = rpc_call(NFS_CLIENT(inode), NFS3PROC_SETATTR, &arg, fattr, 0);
+ status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
if (status == 0)
nfs_setattr_update_inode(inode, sattr);
dprintk("NFS reply setattr: %d\n", status);
@@ -152,15 +157,23 @@ nfs3_proc_lookup(struct inode *dir, struct qstr *name,
.fh = fhandle,
.fattr = fattr
};
+ struct rpc_message msg = {
+ .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP],
+ .rpc_argp = &arg,
+ .rpc_resp = &res,
+ };
int status;
dprintk("NFS call lookup %s\n", name->name);
nfs_fattr_init(&dir_attr);
nfs_fattr_init(fattr);
- status = rpc_call(NFS_CLIENT(dir), NFS3PROC_LOOKUP, &arg, &res, 0);
- if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR))
- status = rpc_call(NFS_CLIENT(dir), NFS3PROC_GETATTR,
- fhandle, fattr, 0);
+ status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
+ if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) {
+ msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR];
+ msg.rpc_argp = fhandle;
+ msg.rpc_resp = fattr;
+ status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
+ }
dprintk("NFS reply lookup: %d\n", status);
if (status >= 0)
status = nfs_refresh_inode(dir, &dir_attr);
@@ -180,7 +193,7 @@ static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry)
.rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS],
.rpc_argp = &arg,
.rpc_resp = &res,
- .rpc_cred = entry->cred
+ .rpc_cred = entry->cred,
};
int mode = entry->mask;
int status;
@@ -226,12 +239,16 @@ static int nfs3_proc_readlink(struct inode *inode, struct page *page,
.pglen = pglen,
.pages = &page
};
+ struct rpc_message msg = {
+ .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK],
+ .rpc_argp = &args,
+ .rpc_resp = &fattr,
+ };
int status;
dprintk("NFS call readlink\n");
nfs_fattr_init(&fattr);
- status = rpc_call(NFS_CLIENT(inode), NFS3PROC_READLINK,
- &args, &fattr, 0);
+ status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
nfs_refresh_inode(inode, &fattr);
dprintk("NFS reply readlink: %d\n", status);
return status;
@@ -327,6 +344,11 @@ nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
.fh = &fhandle,
.fattr = &fattr
};
+ struct rpc_message msg = {
+ .rpc_proc = &nfs3_procedures[NFS3PROC_CREATE],
+ .rpc_argp = &arg,
+ .rpc_resp = &res,
+ };
mode_t mode = sattr->ia_mode;
int status;
@@ -343,8 +365,8 @@ nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
again:
nfs_fattr_init(&dir_attr);
nfs_fattr_init(&fattr);
- status = rpc_call(NFS_CLIENT(dir), NFS3PROC_CREATE, &arg, &res, 0);
- nfs_post_op_update_inode(dir, &dir_attr);
+ status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
+ nfs_refresh_inode(dir, &dir_attr);
/* If the server doesn't support the exclusive creation semantics,
* try again with simple 'guarded' mode. */
@@ -447,7 +469,7 @@ nfs3_proc_unlink_done(struct dentry *dir, struct rpc_task *task)
struct rpc_message *msg = &task->tk_msg;
struct nfs_fattr *dir_attr;
- if (nfs3_async_handle_jukebox(task))
+ if (nfs3_async_handle_jukebox(task, dir->d_inode))
return 1;
if (msg->rpc_argp) {
dir_attr = (struct nfs_fattr*)msg->rpc_resp;
@@ -474,12 +496,17 @@ nfs3_proc_rename(struct inode *old_dir, struct qstr *old_name,
.fromattr = &old_dir_attr,
.toattr = &new_dir_attr
};
+ struct rpc_message msg = {
+ .rpc_proc = &nfs3_procedures[NFS3PROC_RENAME],
+ .rpc_argp = &arg,
+ .rpc_resp = &res,
+ };
int status;
dprintk("NFS call rename %s -> %s\n", old_name->name, new_name->name);
nfs_fattr_init(&old_dir_attr);
nfs_fattr_init(&new_dir_attr);
- status = rpc_call(NFS_CLIENT(old_dir), NFS3PROC_RENAME, &arg, &res, 0);
+ status = rpc_call_sync(NFS_CLIENT(old_dir), &msg, 0);
nfs_post_op_update_inode(old_dir, &old_dir_attr);
nfs_post_op_update_inode(new_dir, &new_dir_attr);
dprintk("NFS reply rename: %d\n", status);
@@ -500,12 +527,17 @@ nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
.dir_attr = &dir_attr,
.fattr = &fattr
};
+ struct rpc_message msg = {
+ .rpc_proc = &nfs3_procedures[NFS3PROC_LINK],
+ .rpc_argp = &arg,
+ .rpc_resp = &res,
+ };
int status;
dprintk("NFS call link %s\n", name->name);
nfs_fattr_init(&dir_attr);
nfs_fattr_init(&fattr);
- status = rpc_call(NFS_CLIENT(inode), NFS3PROC_LINK, &arg, &res, 0);
+ status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
nfs_post_op_update_inode(dir, &dir_attr);
nfs_post_op_update_inode(inode, &fattr);
dprintk("NFS reply link: %d\n", status);
@@ -531,6 +563,11 @@ nfs3_proc_symlink(struct inode *dir, struct qstr *name, struct qstr *path,
.fh = fhandle,
.fattr = fattr
};
+ struct rpc_message msg = {
+ .rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK],
+ .rpc_argp = &arg,
+ .rpc_resp = &res,
+ };
int status;
if (path->len > NFS3_MAXPATHLEN)
@@ -538,7 +575,7 @@ nfs3_proc_symlink(struct inode *dir, struct qstr *name, struct qstr *path,
dprintk("NFS call symlink %s -> %s\n", name->name, path->name);
nfs_fattr_init(&dir_attr);
nfs_fattr_init(fattr);
- status = rpc_call(NFS_CLIENT(dir), NFS3PROC_SYMLINK, &arg, &res, 0);
+ status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
nfs_post_op_update_inode(dir, &dir_attr);
dprintk("NFS reply symlink: %d\n", status);
return status;
@@ -560,6 +597,11 @@ nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
.fh = &fhandle,
.fattr = &fattr
};
+ struct rpc_message msg = {
+ .rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR],
+ .rpc_argp = &arg,
+ .rpc_resp = &res,
+ };
int mode = sattr->ia_mode;
int status;
@@ -569,7 +611,7 @@ nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
nfs_fattr_init(&dir_attr);
nfs_fattr_init(&fattr);
- status = rpc_call(NFS_CLIENT(dir), NFS3PROC_MKDIR, &arg, &res, 0);
+ status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
nfs_post_op_update_inode(dir, &dir_attr);
if (status != 0)
goto out;
@@ -591,11 +633,16 @@ nfs3_proc_rmdir(struct inode *dir, struct qstr *name)
.name = name->name,
.len = name->len
};
+ struct rpc_message msg = {
+ .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR],
+ .rpc_argp = &arg,
+ .rpc_resp = &dir_attr,
+ };
int status;
dprintk("NFS call rmdir %s\n", name->name);
nfs_fattr_init(&dir_attr);
- status = rpc_call(NFS_CLIENT(dir), NFS3PROC_RMDIR, &arg, &dir_attr, 0);
+ status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
nfs_post_op_update_inode(dir, &dir_attr);
dprintk("NFS reply rmdir: %d\n", status);
return status;
@@ -672,6 +719,11 @@ nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
.fh = &fh,
.fattr = &fattr
};
+ struct rpc_message msg = {
+ .rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD],
+ .rpc_argp = &arg,
+ .rpc_resp = &res,
+ };
mode_t mode = sattr->ia_mode;
int status;
@@ -690,7 +742,7 @@ nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
nfs_fattr_init(&dir_attr);
nfs_fattr_init(&fattr);
- status = rpc_call(NFS_CLIENT(dir), NFS3PROC_MKNOD, &arg, &res, 0);
+ status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
nfs_post_op_update_inode(dir, &dir_attr);
if (status != 0)
goto out;
@@ -707,11 +759,16 @@ static int
nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
struct nfs_fsstat *stat)
{
+ struct rpc_message msg = {
+ .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT],
+ .rpc_argp = fhandle,
+ .rpc_resp = stat,
+ };
int status;
dprintk("NFS call fsstat\n");
nfs_fattr_init(stat->fattr);
- status = rpc_call(server->client, NFS3PROC_FSSTAT, fhandle, stat, 0);
+ status = rpc_call_sync(server->client, &msg, 0);
dprintk("NFS reply statfs: %d\n", status);
return status;
}
@@ -720,11 +777,16 @@ static int
nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
struct nfs_fsinfo *info)
{
+ struct rpc_message msg = {
+ .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO],
+ .rpc_argp = fhandle,
+ .rpc_resp = info,
+ };
int status;
dprintk("NFS call fsinfo\n");
nfs_fattr_init(info->fattr);
- status = rpc_call(server->client_sys, NFS3PROC_FSINFO, fhandle, info, 0);
+ status = rpc_call_sync(server->client_sys, &msg, 0);
dprintk("NFS reply fsinfo: %d\n", status);
return status;
}
@@ -733,40 +795,34 @@ static int
nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
struct nfs_pathconf *info)
{
+ struct rpc_message msg = {
+ .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF],
+ .rpc_argp = fhandle,
+ .rpc_resp = info,
+ };
int status;
dprintk("NFS call pathconf\n");
nfs_fattr_init(info->fattr);
- status = rpc_call(server->client, NFS3PROC_PATHCONF, fhandle, info, 0);
+ status = rpc_call_sync(server->client, &msg, 0);
dprintk("NFS reply pathconf: %d\n", status);
return status;
}
extern u32 *nfs3_decode_dirent(u32 *, struct nfs_entry *, int);
-static void nfs3_read_done(struct rpc_task *task, void *calldata)
+static int nfs3_read_done(struct rpc_task *task, struct nfs_read_data *data)
{
- struct nfs_read_data *data = calldata;
-
- if (nfs3_async_handle_jukebox(task))
- return;
+ if (nfs3_async_handle_jukebox(task, data->inode))
+ return -EAGAIN;
/* Call back common NFS readpage processing */
if (task->tk_status >= 0)
nfs_refresh_inode(data->inode, &data->fattr);
- nfs_readpage_result(task, calldata);
+ return 0;
}
-static const struct rpc_call_ops nfs3_read_ops = {
- .rpc_call_done = nfs3_read_done,
- .rpc_release = nfs_readdata_release,
-};
-
-static void
-nfs3_proc_read_setup(struct nfs_read_data *data)
+static void nfs3_proc_read_setup(struct nfs_read_data *data)
{
- struct rpc_task *task = &data->task;
- struct inode *inode = data->inode;
- int flags;
struct rpc_message msg = {
.rpc_proc = &nfs3_procedures[NFS3PROC_READ],
.rpc_argp = &data->args,
@@ -774,37 +830,20 @@ nfs3_proc_read_setup(struct nfs_read_data *data)
.rpc_cred = data->cred,
};
- /* N.B. Do we need to test? Never called for swapfile inode */
- flags = RPC_TASK_ASYNC | (IS_SWAPFILE(inode)? NFS_RPC_SWAPFLAGS : 0);
-
- /* Finalize the task. */
- rpc_init_task(task, NFS_CLIENT(inode), flags, &nfs3_read_ops, data);
- rpc_call_setup(task, &msg, 0);
+ rpc_call_setup(&data->task, &msg, 0);
}
-static void nfs3_write_done(struct rpc_task *task, void *calldata)
+static int nfs3_write_done(struct rpc_task *task, struct nfs_write_data *data)
{
- struct nfs_write_data *data = calldata;
-
- if (nfs3_async_handle_jukebox(task))
- return;
+ if (nfs3_async_handle_jukebox(task, data->inode))
+ return -EAGAIN;
if (task->tk_status >= 0)
nfs_post_op_update_inode(data->inode, data->res.fattr);
- nfs_writeback_done(task, calldata);
+ return 0;
}
-static const struct rpc_call_ops nfs3_write_ops = {
- .rpc_call_done = nfs3_write_done,
- .rpc_release = nfs_writedata_release,
-};
-
-static void
-nfs3_proc_write_setup(struct nfs_write_data *data, int how)
+static void nfs3_proc_write_setup(struct nfs_write_data *data, int how)
{
- struct rpc_task *task = &data->task;
- struct inode *inode = data->inode;
- int stable;
- int flags;
struct rpc_message msg = {
.rpc_proc = &nfs3_procedures[NFS3PROC_WRITE],
.rpc_argp = &data->args,
@@ -812,45 +851,28 @@ nfs3_proc_write_setup(struct nfs_write_data *data, int how)
.rpc_cred = data->cred,
};
+ data->args.stable = NFS_UNSTABLE;
if (how & FLUSH_STABLE) {
- if (!NFS_I(inode)->ncommit)
- stable = NFS_FILE_SYNC;
- else
- stable = NFS_DATA_SYNC;
- } else
- stable = NFS_UNSTABLE;
- data->args.stable = stable;
-
- /* Set the initial flags for the task. */
- flags = (how & FLUSH_SYNC) ? 0 : RPC_TASK_ASYNC;
+ data->args.stable = NFS_FILE_SYNC;
+ if (NFS_I(data->inode)->ncommit)
+ data->args.stable = NFS_DATA_SYNC;
+ }
/* Finalize the task. */
- rpc_init_task(task, NFS_CLIENT(inode), flags, &nfs3_write_ops, data);
- rpc_call_setup(task, &msg, 0);
+ rpc_call_setup(&data->task, &msg, 0);
}
-static void nfs3_commit_done(struct rpc_task *task, void *calldata)
+static int nfs3_commit_done(struct rpc_task *task, struct nfs_write_data *data)
{
- struct nfs_write_data *data = calldata;
-
- if (nfs3_async_handle_jukebox(task))
- return;
+ if (nfs3_async_handle_jukebox(task, data->inode))
+ return -EAGAIN;
if (task->tk_status >= 0)
nfs_post_op_update_inode(data->inode, data->res.fattr);
- nfs_commit_done(task, calldata);
+ return 0;
}
-static const struct rpc_call_ops nfs3_commit_ops = {
- .rpc_call_done = nfs3_commit_done,
- .rpc_release = nfs_commit_release,
-};
-
-static void
-nfs3_proc_commit_setup(struct nfs_write_data *data, int how)
+static void nfs3_proc_commit_setup(struct nfs_write_data *data, int how)
{
- struct rpc_task *task = &data->task;
- struct inode *inode = data->inode;
- int flags;
struct rpc_message msg = {
.rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT],
.rpc_argp = &data->args,
@@ -858,12 +880,7 @@ nfs3_proc_commit_setup(struct nfs_write_data *data, int how)
.rpc_cred = data->cred,
};
- /* Set the initial flags for the task. */
- flags = (how & FLUSH_SYNC) ? 0 : RPC_TASK_ASYNC;
-
- /* Finalize the task. */
- rpc_init_task(task, NFS_CLIENT(inode), flags, &nfs3_commit_ops, data);
- rpc_call_setup(task, &msg, 0);
+ rpc_call_setup(&data->task, &msg, 0);
}
static int
@@ -902,8 +919,11 @@ struct nfs_rpc_ops nfs_v3_clientops = {
.pathconf = nfs3_proc_pathconf,
.decode_dirent = nfs3_decode_dirent,
.read_setup = nfs3_proc_read_setup,
+ .read_done = nfs3_read_done,
.write_setup = nfs3_proc_write_setup,
+ .write_done = nfs3_write_done,
.commit_setup = nfs3_proc_commit_setup,
+ .commit_done = nfs3_commit_done,
.file_open = nfs_open,
.file_release = nfs_release,
.lock = nfs3_proc_lock,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-12 22:22:24 +0000