#include <linux/nfs_fs.h>
#include <linux/nfs_page.h>
#include <linux/lockd/bind.h>
-#include <linux/smp_lock.h>
#include "internal.h"
#define NFSDBG_FACILITY NFSDBG_PROC
};
int status;
- dprintk("%s: call getattr\n", __FUNCTION__);
+ dprintk("%s: call getattr\n", __func__);
nfs_fattr_init(fattr);
- status = rpc_call_sync(server->client_sys, &msg, 0);
- dprintk("%s: reply getattr: %d\n", __FUNCTION__, status);
+ status = rpc_call_sync(server->client, &msg, 0);
+ /* Retry with default authentication if different */
+ if (status && server->nfs_client->cl_rpcclient != server->client)
+ status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0);
+ dprintk("%s: reply getattr: %d\n", __func__, status);
if (status)
return status;
- dprintk("%s: call statfs\n", __FUNCTION__);
+ dprintk("%s: call statfs\n", __func__);
msg.rpc_proc = &nfs_procedures[NFSPROC_STATFS];
msg.rpc_resp = &fsinfo;
- status = rpc_call_sync(server->client_sys, &msg, 0);
- dprintk("%s: reply statfs: %d\n", __FUNCTION__, status);
+ status = rpc_call_sync(server->client, &msg, 0);
+ /* Retry with default authentication if different */
+ if (status && server->nfs_client->cl_rpcclient != server->client)
+ status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0);
+ dprintk("%s: reply statfs: %d\n", __func__, status);
if (status)
return status;
info->rtmax = NFS_MAXDATA;
sattr->ia_mode &= S_IALLUGO;
dprintk("NFS call setattr\n");
+ if (sattr->ia_valid & ATTR_FILE)
+ msg.rpc_cred = nfs_file_cred(sattr->ia_file);
nfs_fattr_init(fattr);
status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
if (status == 0)
return status;
}
-static int nfs_proc_read(struct nfs_read_data *rdata)
-{
- int flags = rdata->flags;
- struct inode * inode = rdata->inode;
- struct nfs_fattr * fattr = rdata->res.fattr;
- struct rpc_message msg = {
- .rpc_proc = &nfs_procedures[NFSPROC_READ],
- .rpc_argp = &rdata->args,
- .rpc_resp = &rdata->res,
- .rpc_cred = rdata->cred,
- };
- int status;
-
- dprintk("NFS call read %d @ %Ld\n", rdata->args.count,
- (long long) rdata->args.offset);
- nfs_fattr_init(fattr);
- status = rpc_call_sync(NFS_CLIENT(inode), &msg, flags);
- if (status >= 0) {
- nfs_refresh_inode(inode, fattr);
- /* Emulate the eof flag, which isn't normally needed in NFSv2
- * as it is guaranteed to always return the file attributes
- */
- if (rdata->args.offset + rdata->args.count >= fattr->size)
- rdata->res.eof = 1;
- }
- dprintk("NFS reply read: %d\n", status);
- return status;
-}
-
-static int nfs_proc_write(struct nfs_write_data *wdata)
-{
- int flags = wdata->flags;
- struct inode * inode = wdata->inode;
- struct nfs_fattr * fattr = wdata->res.fattr;
- struct rpc_message msg = {
- .rpc_proc = &nfs_procedures[NFSPROC_WRITE],
- .rpc_argp = &wdata->args,
- .rpc_resp = &wdata->res,
- .rpc_cred = wdata->cred,
- };
- int status;
-
- dprintk("NFS call write %d @ %Ld\n", wdata->args.count,
- (long long) wdata->args.offset);
- nfs_fattr_init(fattr);
- status = rpc_call_sync(NFS_CLIENT(inode), &msg, flags);
- if (status >= 0) {
- nfs_post_op_update_inode(inode, fattr);
- wdata->res.count = wdata->args.count;
- wdata->verf.committed = NFS_FILE_SYNC;
- }
- dprintk("NFS reply write: %d\n", status);
- return status < 0? status : wdata->res.count;
-}
-
static int
nfs_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
int flags, struct nameidata *nd)
nfs_fattr_init(&fattr);
dprintk("NFS call create %s\n", dentry->d_name.name);
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
+ nfs_mark_for_revalidate(dir);
if (status == 0)
status = nfs_instantiate(dentry, &fhandle, &fattr);
dprintk("NFS reply create: %d\n", status);
static int
nfs_proc_remove(struct inode *dir, struct qstr *name)
{
- struct nfs_diropargs arg = {
- .fh = NFS_FH(dir),
- .name = name->name,
- .len = name->len
+ struct nfs_removeargs arg = {
+ .fh = NFS_FH(dir),
+ .name.len = name->len,
+ .name.name = name->name,
};
- struct rpc_message msg = {
- .rpc_proc = &nfs_procedures[NFSPROC_REMOVE],
- .rpc_argp = &arg,
+ struct rpc_message msg = {
+ .rpc_proc = &nfs_procedures[NFSPROC_REMOVE],
+ .rpc_argp = &arg,
};
int status;
return status;
}
-static int
-nfs_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir, struct qstr *name)
+static void
+nfs_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
{
- struct nfs_diropargs *arg;
-
- arg = (struct nfs_diropargs *)kmalloc(sizeof(*arg), GFP_KERNEL);
- if (!arg)
- return -ENOMEM;
- arg->fh = NFS_FH(dir->d_inode);
- arg->name = name->name;
- arg->len = name->len;
msg->rpc_proc = &nfs_procedures[NFSPROC_REMOVE];
- msg->rpc_argp = arg;
- return 0;
}
-static int
-nfs_proc_unlink_done(struct dentry *dir, struct rpc_task *task)
+static int nfs_proc_unlink_done(struct rpc_task *task, struct inode *dir)
{
- struct rpc_message *msg = &task->tk_msg;
-
- if (msg->rpc_argp) {
- nfs_mark_for_revalidate(dir->d_inode);
- kfree(msg->rpc_argp);
- }
- return 0;
+ nfs_mark_for_revalidate(dir);
+ return 1;
}
static int
}
static int
-nfs_proc_symlink(struct inode *dir, struct qstr *name, struct qstr *path,
- struct iattr *sattr, struct nfs_fh *fhandle,
- struct nfs_fattr *fattr)
+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_symlinkargs arg = {
.fromfh = NFS_FH(dir),
- .fromname = name->name,
- .fromlen = name->len,
- .topath = path->name,
- .tolen = path->len,
+ .fromname = dentry->d_name.name,
+ .fromlen = dentry->d_name.len,
+ .pages = &page,
+ .pathlen = len,
.sattr = sattr
};
struct rpc_message msg = {
};
int status;
- if (path->len > NFS2_MAXPATHLEN)
+ if (len > NFS2_MAXPATHLEN)
return -ENAMETOOLONG;
- dprintk("NFS call symlink %s -> %s\n", name->name, path->name);
- nfs_fattr_init(fattr);
- fhandle->size = 0;
+
+ dprintk("NFS call symlink %s\n", dentry->d_name.name);
+
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
nfs_mark_for_revalidate(dir);
+
+ /*
+ * V2 SYMLINK requests don't return any attributes. Setting the
+ * 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);
+ }
+
dprintk("NFS reply symlink: %d\n", status);
return status;
}
};
int status;
- lock_kernel();
-
dprintk("NFS call readdir %d\n", (unsigned int)cookie);
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
+ nfs_invalidate_atime(dir);
+
dprintk("NFS reply readdir: %d\n", status);
- unlock_kernel();
return status;
}
static int nfs_read_done(struct rpc_task *task, struct nfs_read_data *data)
{
+ nfs_invalidate_atime(data->inode);
if (task->tk_status >= 0) {
nfs_refresh_inode(data->inode, data->res.fattr);
/* Emulate the eof flag, which isn't normally needed in NFSv2
return 0;
}
-static void nfs_proc_read_setup(struct nfs_read_data *data)
+static void nfs_proc_read_setup(struct nfs_read_data *data, struct rpc_message *msg)
{
- struct rpc_message msg = {
- .rpc_proc = &nfs_procedures[NFSPROC_READ],
- .rpc_argp = &data->args,
- .rpc_resp = &data->res,
- .rpc_cred = data->cred,
- };
-
- rpc_call_setup(&data->task, &msg, 0);
+ msg->rpc_proc = &nfs_procedures[NFSPROC_READ];
}
static int nfs_write_done(struct rpc_task *task, struct nfs_write_data *data)
{
if (task->tk_status >= 0)
- nfs_post_op_update_inode(data->inode, data->res.fattr);
+ nfs_post_op_update_inode_force_wcc(data->inode, data->res.fattr);
return 0;
}
-static void nfs_proc_write_setup(struct nfs_write_data *data, int how)
+static void nfs_proc_write_setup(struct nfs_write_data *data, struct rpc_message *msg)
{
- struct rpc_message msg = {
- .rpc_proc = &nfs_procedures[NFSPROC_WRITE],
- .rpc_argp = &data->args,
- .rpc_resp = &data->res,
- .rpc_cred = data->cred,
- };
-
/* Note: NFSv2 ignores @stable and always uses NFS_FILE_SYNC */
data->args.stable = NFS_FILE_SYNC;
-
- /* Finalize the task. */
- rpc_call_setup(&data->task, &msg, 0);
+ msg->rpc_proc = &nfs_procedures[NFSPROC_WRITE];
}
static void
-nfs_proc_commit_setup(struct nfs_write_data *data, int how)
+nfs_proc_commit_setup(struct nfs_write_data *data, struct rpc_message *msg)
{
BUG();
}
static int
nfs_proc_lock(struct file *filp, int cmd, struct file_lock *fl)
{
- return nlmclnt_proc(filp->f_dentry->d_inode, cmd, fl);
+ struct inode *inode = filp->f_path.dentry->d_inode;
+
+ return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl);
}
+/* Helper functions for NFS lock bounds checking */
+#define NFS_LOCK32_OFFSET_MAX ((__s32)0x7fffffffUL)
+static int nfs_lock_check_bounds(const struct file_lock *fl)
+{
+ __s32 start, end;
+
+ start = (__s32)fl->fl_start;
+ if ((loff_t)start != fl->fl_start)
+ goto out_einval;
+
+ if (fl->fl_end != OFFSET_MAX) {
+ end = (__s32)fl->fl_end;
+ if ((loff_t)end != fl->fl_end)
+ goto out_einval;
+ } else
+ end = NFS_LOCK32_OFFSET_MAX;
+
+ if (start < 0 || start > end)
+ goto out_einval;
+ return 0;
+out_einval:
+ return -EINVAL;
+}
const struct nfs_rpc_ops nfs_v2_clientops = {
.version = 2, /* protocol version */
.lookup = nfs_proc_lookup,
.access = NULL, /* access */
.readlink = nfs_proc_readlink,
- .read = nfs_proc_read,
- .write = nfs_proc_write,
- .commit = NULL, /* commit */
.create = nfs_proc_create,
.remove = nfs_proc_remove,
.unlink_setup = nfs_proc_unlink_setup,
.write_setup = nfs_proc_write_setup,
.write_done = nfs_write_done,
.commit_setup = nfs_proc_commit_setup,
- .file_open = nfs_open,
- .file_release = nfs_release,
.lock = nfs_proc_lock,
+ .lock_check_bounds = nfs_lock_check_bounds,
+ .close_context = nfs_close_context,
};
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff