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Diffstat (limited to 'fs/nfs/proc.c')
-rw-r--r--fs/nfs/proc.c294
1 files changed, 188 insertions, 106 deletions
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index ef583854d8d..c171ce1a8a3 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -29,7 +29,6 @@
#include <linux/types.h>
#include <linux/param.h>
-#include <linux/slab.h>
#include <linux/time.h>
#include <linux/mm.h>
#include <linux/errno.h>
@@ -42,6 +41,7 @@
#include <linux/nfs_fs.h>
#include <linux/nfs_page.h>
#include <linux/lockd/bind.h>
+#include <linux/freezer.h>
#include "internal.h"
#define NFSDBG_FACILITY NFSDBG_PROC
@@ -98,7 +98,7 @@ nfs_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
*/
static int
nfs_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
- struct nfs_fattr *fattr)
+ struct nfs_fattr *fattr, struct nfs4_label *label)
{
struct rpc_message msg = {
.rpc_proc = &nfs_procedures[NFSPROC_GETATTR],
@@ -146,7 +146,8 @@ nfs_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
static int
nfs_proc_lookup(struct inode *dir, struct qstr *name,
- struct nfs_fh *fhandle, struct nfs_fattr *fattr)
+ struct nfs_fh *fhandle, struct nfs_fattr *fattr,
+ struct nfs4_label *label)
{
struct nfs_diropargs arg = {
.fh = NFS_FH(dir),
@@ -192,35 +193,60 @@ static int nfs_proc_readlink(struct inode *inode, struct page *page,
return status;
}
+struct nfs_createdata {
+ struct nfs_createargs arg;
+ struct nfs_diropok res;
+ struct nfs_fh fhandle;
+ struct nfs_fattr fattr;
+};
+
+static struct nfs_createdata *nfs_alloc_createdata(struct inode *dir,
+ struct dentry *dentry, struct iattr *sattr)
+{
+ struct nfs_createdata *data;
+
+ data = kmalloc(sizeof(*data), GFP_KERNEL);
+
+ if (data != NULL) {
+ data->arg.fh = NFS_FH(dir);
+ data->arg.name = dentry->d_name.name;
+ data->arg.len = dentry->d_name.len;
+ data->arg.sattr = sattr;
+ nfs_fattr_init(&data->fattr);
+ data->fhandle.size = 0;
+ data->res.fh = &data->fhandle;
+ data->res.fattr = &data->fattr;
+ }
+ return data;
+};
+
+static void nfs_free_createdata(const struct nfs_createdata *data)
+{
+ kfree(data);
+}
+
static int
nfs_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
- int flags, struct nameidata *nd)
+ int flags)
{
- struct nfs_fh fhandle;
- struct nfs_fattr fattr;
- struct nfs_createargs arg = {
- .fh = NFS_FH(dir),
- .name = dentry->d_name.name,
- .len = dentry->d_name.len,
- .sattr = sattr
- };
- struct nfs_diropok res = {
- .fh = &fhandle,
- .fattr = &fattr
- };
+ struct nfs_createdata *data;
struct rpc_message msg = {
.rpc_proc = &nfs_procedures[NFSPROC_CREATE],
- .rpc_argp = &arg,
- .rpc_resp = &res,
};
- int status;
+ int status = -ENOMEM;
- nfs_fattr_init(&fattr);
- dprintk("NFS call create %s\n", dentry->d_name.name);
+ dprintk("NFS call create %pd\n", dentry);
+ data = nfs_alloc_createdata(dir, dentry, sattr);
+ if (data == NULL)
+ goto out;
+ msg.rpc_argp = &data->arg;
+ msg.rpc_resp = &data->res;
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
nfs_mark_for_revalidate(dir);
if (status == 0)
- status = nfs_instantiate(dentry, &fhandle, &fattr);
+ status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL);
+ nfs_free_createdata(data);
+out:
dprintk("NFS reply create: %d\n", status);
return status;
}
@@ -232,26 +258,14 @@ static int
nfs_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
dev_t rdev)
{
- struct nfs_fh fhandle;
- struct nfs_fattr fattr;
- struct nfs_createargs arg = {
- .fh = NFS_FH(dir),
- .name = dentry->d_name.name,
- .len = dentry->d_name.len,
- .sattr = sattr
- };
- struct nfs_diropok res = {
- .fh = &fhandle,
- .fattr = &fattr
- };
+ struct nfs_createdata *data;
struct rpc_message msg = {
.rpc_proc = &nfs_procedures[NFSPROC_CREATE],
- .rpc_argp = &arg,
- .rpc_resp = &res,
};
- int status, mode;
+ umode_t mode;
+ int status = -ENOMEM;
- dprintk("NFS call mknod %s\n", dentry->d_name.name);
+ dprintk("NFS call mknod %pd\n", dentry);
mode = sattr->ia_mode;
if (S_ISFIFO(mode)) {
@@ -262,17 +276,24 @@ nfs_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
sattr->ia_size = new_encode_dev(rdev);/* get out your barf bag */
}
- nfs_fattr_init(&fattr);
+ data = nfs_alloc_createdata(dir, dentry, sattr);
+ if (data == NULL)
+ goto out;
+ msg.rpc_argp = &data->arg;
+ msg.rpc_resp = &data->res;
+
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
nfs_mark_for_revalidate(dir);
if (status == -EINVAL && S_ISFIFO(mode)) {
sattr->ia_mode = mode;
- nfs_fattr_init(&fattr);
+ nfs_fattr_init(data->res.fattr);
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
}
if (status == 0)
- status = nfs_instantiate(dentry, &fhandle, &fattr);
+ status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL);
+ nfs_free_createdata(data);
+out:
dprintk("NFS reply mknod: %d\n", status);
return status;
}
@@ -282,8 +303,7 @@ nfs_proc_remove(struct inode *dir, struct qstr *name)
{
struct nfs_removeargs arg = {
.fh = NFS_FH(dir),
- .name.len = name->len,
- .name.name = name->name,
+ .name = *name,
};
struct rpc_message msg = {
.rpc_proc = &nfs_procedures[NFSPROC_REMOVE],
@@ -305,36 +325,35 @@ nfs_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
msg->rpc_proc = &nfs_procedures[NFSPROC_REMOVE];
}
+static void nfs_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data)
+{
+ rpc_call_start(task);
+}
+
static int nfs_proc_unlink_done(struct rpc_task *task, struct inode *dir)
{
nfs_mark_for_revalidate(dir);
return 1;
}
-static int
-nfs_proc_rename(struct inode *old_dir, struct qstr *old_name,
- struct inode *new_dir, struct qstr *new_name)
-{
- struct nfs_renameargs arg = {
- .fromfh = NFS_FH(old_dir),
- .fromname = old_name->name,
- .fromlen = old_name->len,
- .tofh = NFS_FH(new_dir),
- .toname = new_name->name,
- .tolen = new_name->len
- };
- struct rpc_message msg = {
- .rpc_proc = &nfs_procedures[NFSPROC_RENAME],
- .rpc_argp = &arg,
- };
- int status;
+static void
+nfs_proc_rename_setup(struct rpc_message *msg, struct inode *dir)
+{
+ msg->rpc_proc = &nfs_procedures[NFSPROC_RENAME];
+}
+
+static void nfs_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data)
+{
+ rpc_call_start(task);
+}
- dprintk("NFS call rename %s -> %s\n", old_name->name, new_name->name);
- status = rpc_call_sync(NFS_CLIENT(old_dir), &msg, 0);
+static int
+nfs_proc_rename_done(struct rpc_task *task, struct inode *old_dir,
+ struct inode *new_dir)
+{
nfs_mark_for_revalidate(old_dir);
nfs_mark_for_revalidate(new_dir);
- dprintk("NFS reply rename: %d\n", status);
- return status;
+ return 1;
}
static int
@@ -364,8 +383,8 @@ static int
nfs_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
unsigned int len, struct iattr *sattr)
{
- struct nfs_fh fhandle;
- struct nfs_fattr fattr;
+ struct nfs_fh *fh;
+ struct nfs_fattr *fattr;
struct nfs_symlinkargs arg = {
.fromfh = NFS_FH(dir),
.fromname = dentry->d_name.name,
@@ -378,12 +397,18 @@ nfs_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
.rpc_proc = &nfs_procedures[NFSPROC_SYMLINK],
.rpc_argp = &arg,
};
- int status;
+ int status = -ENAMETOOLONG;
+
+ dprintk("NFS call symlink %pd\n", dentry);
if (len > NFS2_MAXPATHLEN)
- return -ENAMETOOLONG;
+ goto out;
- dprintk("NFS call symlink %s\n", dentry->d_name.name);
+ fh = nfs_alloc_fhandle();
+ fattr = nfs_alloc_fattr();
+ status = -ENOMEM;
+ if (fh == NULL || fattr == NULL)
+ goto out_free;
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
nfs_mark_for_revalidate(dir);
@@ -393,12 +418,13 @@ nfs_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
* filehandle size to zero indicates to nfs_instantiate that it
* should fill in the data with a LOOKUP call on the wire.
*/
- if (status == 0) {
- nfs_fattr_init(&fattr);
- fhandle.size = 0;
- status = nfs_instantiate(dentry, &fhandle, &fattr);
- }
+ if (status == 0)
+ status = nfs_instantiate(dentry, fh, fattr, NULL);
+out_free:
+ nfs_free_fattr(fattr);
+ nfs_free_fhandle(fh);
+out:
dprintk("NFS reply symlink: %d\n", status);
return status;
}
@@ -406,31 +432,25 @@ nfs_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
static int
nfs_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
{
- struct nfs_fh fhandle;
- struct nfs_fattr fattr;
- struct nfs_createargs arg = {
- .fh = NFS_FH(dir),
- .name = dentry->d_name.name,
- .len = dentry->d_name.len,
- .sattr = sattr
- };
- struct nfs_diropok res = {
- .fh = &fhandle,
- .fattr = &fattr
- };
+ struct nfs_createdata *data;
struct rpc_message msg = {
.rpc_proc = &nfs_procedures[NFSPROC_MKDIR],
- .rpc_argp = &arg,
- .rpc_resp = &res,
};
- int status;
+ int status = -ENOMEM;
+
+ dprintk("NFS call mkdir %pd\n", dentry);
+ data = nfs_alloc_createdata(dir, dentry, sattr);
+ if (data == NULL)
+ goto out;
+ msg.rpc_argp = &data->arg;
+ msg.rpc_resp = &data->res;
- dprintk("NFS call mkdir %s\n", dentry->d_name.name);
- nfs_fattr_init(&fattr);
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
nfs_mark_for_revalidate(dir);
if (status == 0)
- status = nfs_instantiate(dentry, &fhandle, &fattr);
+ status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL);
+ nfs_free_createdata(data);
+out:
dprintk("NFS reply mkdir: %d\n", status);
return status;
}
@@ -465,14 +485,14 @@ nfs_proc_rmdir(struct inode *dir, struct qstr *name)
*/
static int
nfs_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
- u64 cookie, struct page *page, unsigned int count, int plus)
+ u64 cookie, struct page **pages, unsigned int count, int plus)
{
struct inode *dir = dentry->d_inode;
struct nfs_readdirargs arg = {
.fh = NFS_FH(dir),
.cookie = cookie,
.count = count,
- .pages = &page,
+ .pages = pages,
};
struct rpc_message msg = {
.rpc_proc = &nfs_procedures[NFSPROC_READDIR],
@@ -558,41 +578,56 @@ nfs_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
return 0;
}
-static int nfs_read_done(struct rpc_task *task, struct nfs_read_data *data)
+static int nfs_read_done(struct rpc_task *task, struct nfs_pgio_data *data)
{
- nfs_invalidate_atime(data->inode);
+ struct inode *inode = data->header->inode;
+
+ nfs_invalidate_atime(inode);
if (task->tk_status >= 0) {
- nfs_refresh_inode(data->inode, data->res.fattr);
+ nfs_refresh_inode(inode, data->res.fattr);
/* Emulate the eof flag, which isn't normally needed in NFSv2
* as it is guaranteed to always return the file attributes
*/
- if (data->args.offset + data->args.count >= data->res.fattr->size)
+ if (data->args.offset + data->res.count >= data->res.fattr->size)
data->res.eof = 1;
}
return 0;
}
-static void nfs_proc_read_setup(struct nfs_read_data *data, struct rpc_message *msg)
+static void nfs_proc_read_setup(struct nfs_pgio_data *data, struct rpc_message *msg)
{
msg->rpc_proc = &nfs_procedures[NFSPROC_READ];
}
-static int nfs_write_done(struct rpc_task *task, struct nfs_write_data *data)
+static int nfs_proc_pgio_rpc_prepare(struct rpc_task *task, struct nfs_pgio_data *data)
+{
+ rpc_call_start(task);
+ return 0;
+}
+
+static int nfs_write_done(struct rpc_task *task, struct nfs_pgio_data *data)
{
+ struct inode *inode = data->header->inode;
+
if (task->tk_status >= 0)
- nfs_post_op_update_inode_force_wcc(data->inode, data->res.fattr);
+ nfs_post_op_update_inode_force_wcc(inode, data->res.fattr);
return 0;
}
-static void nfs_proc_write_setup(struct nfs_write_data *data, struct rpc_message *msg)
+static void nfs_proc_write_setup(struct nfs_pgio_data *data, struct rpc_message *msg)
{
/* Note: NFSv2 ignores @stable and always uses NFS_FILE_SYNC */
data->args.stable = NFS_FILE_SYNC;
msg->rpc_proc = &nfs_procedures[NFSPROC_WRITE];
}
+static void nfs_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data)
+{
+ BUG();
+}
+
static void
-nfs_proc_commit_setup(struct nfs_write_data *data, struct rpc_message *msg)
+nfs_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg)
{
BUG();
}
@@ -600,7 +635,7 @@ nfs_proc_commit_setup(struct nfs_write_data *data, struct rpc_message *msg)
static int
nfs_proc_lock(struct file *filp, int cmd, struct file_lock *fl)
{
- struct inode *inode = filp->f_path.dentry->d_inode;
+ struct inode *inode = file_inode(filp);
return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl);
}
@@ -629,12 +664,47 @@ out_einval:
return -EINVAL;
}
+static int nfs_have_delegation(struct inode *inode, fmode_t flags)
+{
+ return 0;
+}
+
+static int nfs_return_delegation(struct inode *inode)
+{
+ nfs_wb_all(inode);
+ return 0;
+}
+
+static const struct inode_operations nfs_dir_inode_operations = {
+ .create = nfs_create,
+ .lookup = nfs_lookup,
+ .link = nfs_link,
+ .unlink = nfs_unlink,
+ .symlink = nfs_symlink,
+ .mkdir = nfs_mkdir,
+ .rmdir = nfs_rmdir,
+ .mknod = nfs_mknod,
+ .rename = nfs_rename,
+ .permission = nfs_permission,
+ .getattr = nfs_getattr,
+ .setattr = nfs_setattr,
+};
+
+static const struct inode_operations nfs_file_inode_operations = {
+ .permission = nfs_permission,
+ .getattr = nfs_getattr,
+ .setattr = nfs_setattr,
+};
+
const struct nfs_rpc_ops nfs_v2_clientops = {
.version = 2, /* protocol version */
.dentry_ops = &nfs_dentry_operations,
.dir_inode_ops = &nfs_dir_inode_operations,
.file_inode_ops = &nfs_file_inode_operations,
+ .file_ops = &nfs_file_operations,
.getroot = nfs_proc_get_root,
+ .submount = nfs_submount,
+ .try_mount = nfs_try_mount,
.getattr = nfs_proc_getattr,
.setattr = nfs_proc_setattr,
.lookup = nfs_proc_lookup,
@@ -643,8 +713,11 @@ const struct nfs_rpc_ops nfs_v2_clientops = {
.create = nfs_proc_create,
.remove = nfs_proc_remove,
.unlink_setup = nfs_proc_unlink_setup,
+ .unlink_rpc_prepare = nfs_proc_unlink_rpc_prepare,
.unlink_done = nfs_proc_unlink_done,
- .rename = nfs_proc_rename,
+ .rename_setup = nfs_proc_rename_setup,
+ .rename_rpc_prepare = nfs_proc_rename_rpc_prepare,
+ .rename_done = nfs_proc_rename_done,
.link = nfs_proc_link,
.symlink = nfs_proc_symlink,
.mkdir = nfs_proc_mkdir,
@@ -654,13 +727,22 @@ const struct nfs_rpc_ops nfs_v2_clientops = {
.statfs = nfs_proc_statfs,
.fsinfo = nfs_proc_fsinfo,
.pathconf = nfs_proc_pathconf,
- .decode_dirent = nfs_decode_dirent,
+ .decode_dirent = nfs2_decode_dirent,
+ .pgio_rpc_prepare = nfs_proc_pgio_rpc_prepare,
.read_setup = nfs_proc_read_setup,
.read_done = nfs_read_done,
.write_setup = nfs_proc_write_setup,
.write_done = nfs_write_done,
.commit_setup = nfs_proc_commit_setup,
+ .commit_rpc_prepare = nfs_proc_commit_rpc_prepare,
.lock = nfs_proc_lock,
.lock_check_bounds = nfs_lock_check_bounds,
.close_context = nfs_close_context,
+ .have_delegation = nfs_have_delegation,
+ .return_delegation = nfs_return_delegation,
+ .alloc_client = nfs_alloc_client,
+ .init_client = nfs_init_client,
+ .free_client = nfs_free_client,
+ .create_server = nfs_create_server,
+ .clone_server = nfs_clone_server,
};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 06:47:17 +0000