diff options
Diffstat (limited to 'ANDROID_3.4.5/fs/nfs/nfs3proc.c')
| -rw-r--r-- | ANDROID_3.4.5/fs/nfs/nfs3proc.c | 915 |
1 files changed, 0 insertions, 915 deletions
diff --git a/ANDROID_3.4.5/fs/nfs/nfs3proc.c b/ANDROID_3.4.5/fs/nfs/nfs3proc.c deleted file mode 100644 index 5242eae6..00000000 --- a/ANDROID_3.4.5/fs/nfs/nfs3proc.c +++ /dev/null @@ -1,915 +0,0 @@ -/* - * linux/fs/nfs/nfs3proc.c - * - * Client-side NFSv3 procedures stubs. - * - * Copyright (C) 1997, Olaf Kirch - */ - -#include <linux/mm.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/sunrpc/clnt.h> -#include <linux/slab.h> -#include <linux/nfs.h> -#include <linux/nfs3.h> -#include <linux/nfs_fs.h> -#include <linux/nfs_page.h> -#include <linux/lockd/bind.h> -#include <linux/nfs_mount.h> -#include <linux/freezer.h> - -#include "iostat.h" -#include "internal.h" - -#define NFSDBG_FACILITY NFSDBG_PROC - -/* A wrapper to handle the EJUKEBOX and EKEYEXPIRED error messages */ -static int -nfs3_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags) -{ - int res; - do { - res = rpc_call_sync(clnt, msg, flags); - if (res != -EJUKEBOX && res != -EKEYEXPIRED) - break; - freezable_schedule_timeout_killable(NFS_JUKEBOX_RETRY_TIME); - res = -ERESTARTSYS; - } while (!fatal_signal_pending(current)); - return res; -} - -#define rpc_call_sync(clnt, msg, flags) nfs3_rpc_wrapper(clnt, msg, flags) - -static int -nfs3_async_handle_jukebox(struct rpc_task *task, struct inode *inode) -{ - if (task->tk_status != -EJUKEBOX && task->tk_status != -EKEYEXPIRED) - return 0; - if (task->tk_status == -EJUKEBOX) - nfs_inc_stats(inode, NFSIOS_DELAY); - task->tk_status = 0; - rpc_restart_call(task); - rpc_delay(task, NFS_JUKEBOX_RETRY_TIME); - return 1; -} - -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", __func__); - nfs_fattr_init(info->fattr); - status = rpc_call_sync(client, &msg, 0); - dprintk("%s: reply fsinfo: %d\n", __func__, status); - if (!(info->fattr->valid & NFS_ATTR_FATTR)) { - 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", __func__, status); - } - return status; -} - -/* - * Bare-bones access to getattr: this is for nfs_get_root/nfs_get_sb - */ -static int -nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle, - struct nfs_fsinfo *info) -{ - int status; - - status = do_proc_get_root(server->client, fhandle, info); - if (status && server->nfs_client->cl_rpcclient != server->client) - status = do_proc_get_root(server->nfs_client->cl_rpcclient, fhandle, info); - return status; -} - -/* - * One function for each procedure in the NFS protocol. - */ -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_sync(server->client, &msg, 0); - dprintk("NFS reply getattr: %d\n", status); - return status; -} - -static int -nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, - struct iattr *sattr) -{ - struct inode *inode = dentry->d_inode; - struct nfs3_sattrargs arg = { - .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"); - 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) - nfs_setattr_update_inode(inode, sattr); - dprintk("NFS reply setattr: %d\n", status); - return status; -} - -static int -nfs3_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, struct qstr *name, - struct nfs_fh *fhandle, struct nfs_fattr *fattr) -{ - struct nfs3_diropargs arg = { - .fh = NFS_FH(dir), - .name = name->name, - .len = name->len - }; - struct nfs3_diropres res = { - .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); - res.dir_attr = nfs_alloc_fattr(); - if (res.dir_attr == NULL) - return -ENOMEM; - - nfs_fattr_init(fattr); - status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); - nfs_refresh_inode(dir, res.dir_attr); - 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); - } - nfs_free_fattr(res.dir_attr); - dprintk("NFS reply lookup: %d\n", status); - return status; -} - -static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry) -{ - struct nfs3_accessargs arg = { - .fh = NFS_FH(inode), - }; - struct nfs3_accessres res; - struct rpc_message msg = { - .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS], - .rpc_argp = &arg, - .rpc_resp = &res, - .rpc_cred = entry->cred, - }; - int mode = entry->mask; - int status = -ENOMEM; - - dprintk("NFS call access\n"); - - if (mode & MAY_READ) - arg.access |= NFS3_ACCESS_READ; - if (S_ISDIR(inode->i_mode)) { - if (mode & MAY_WRITE) - arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE; - if (mode & MAY_EXEC) - arg.access |= NFS3_ACCESS_LOOKUP; - } else { - if (mode & MAY_WRITE) - arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND; - if (mode & MAY_EXEC) - arg.access |= NFS3_ACCESS_EXECUTE; - } - - res.fattr = nfs_alloc_fattr(); - if (res.fattr == NULL) - goto out; - - status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); - nfs_refresh_inode(inode, res.fattr); - if (status == 0) { - entry->mask = 0; - if (res.access & NFS3_ACCESS_READ) - entry->mask |= MAY_READ; - if (res.access & (NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE)) - entry->mask |= MAY_WRITE; - if (res.access & (NFS3_ACCESS_LOOKUP|NFS3_ACCESS_EXECUTE)) - entry->mask |= MAY_EXEC; - } - nfs_free_fattr(res.fattr); -out: - dprintk("NFS reply access: %d\n", status); - return status; -} - -static int nfs3_proc_readlink(struct inode *inode, struct page *page, - unsigned int pgbase, unsigned int pglen) -{ - struct nfs_fattr *fattr; - struct nfs3_readlinkargs args = { - .fh = NFS_FH(inode), - .pgbase = pgbase, - .pglen = pglen, - .pages = &page - }; - struct rpc_message msg = { - .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK], - .rpc_argp = &args, - }; - int status = -ENOMEM; - - dprintk("NFS call readlink\n"); - fattr = nfs_alloc_fattr(); - if (fattr == NULL) - goto out; - msg.rpc_resp = fattr; - - status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); - nfs_refresh_inode(inode, fattr); - nfs_free_fattr(fattr); -out: - dprintk("NFS reply readlink: %d\n", status); - return status; -} - -struct nfs3_createdata { - struct rpc_message msg; - union { - struct nfs3_createargs create; - struct nfs3_mkdirargs mkdir; - struct nfs3_symlinkargs symlink; - struct nfs3_mknodargs mknod; - } arg; - struct nfs3_diropres res; - struct nfs_fh fh; - struct nfs_fattr fattr; - struct nfs_fattr dir_attr; -}; - -static struct nfs3_createdata *nfs3_alloc_createdata(void) -{ - struct nfs3_createdata *data; - - data = kzalloc(sizeof(*data), GFP_KERNEL); - if (data != NULL) { - data->msg.rpc_argp = &data->arg; - data->msg.rpc_resp = &data->res; - data->res.fh = &data->fh; - data->res.fattr = &data->fattr; - data->res.dir_attr = &data->dir_attr; - nfs_fattr_init(data->res.fattr); - nfs_fattr_init(data->res.dir_attr); - } - return data; -} - -static int nfs3_do_create(struct inode *dir, struct dentry *dentry, struct nfs3_createdata *data) -{ - int status; - - status = rpc_call_sync(NFS_CLIENT(dir), &data->msg, 0); - nfs_post_op_update_inode(dir, data->res.dir_attr); - if (status == 0) - status = nfs_instantiate(dentry, data->res.fh, data->res.fattr); - return status; -} - -static void nfs3_free_createdata(struct nfs3_createdata *data) -{ - kfree(data); -} - -/* - * Create a regular file. - */ -static int -nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, - int flags, struct nfs_open_context *ctx) -{ - struct nfs3_createdata *data; - umode_t mode = sattr->ia_mode; - int status = -ENOMEM; - - dprintk("NFS call create %s\n", dentry->d_name.name); - - data = nfs3_alloc_createdata(); - if (data == NULL) - goto out; - - data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_CREATE]; - data->arg.create.fh = NFS_FH(dir); - data->arg.create.name = dentry->d_name.name; - data->arg.create.len = dentry->d_name.len; - data->arg.create.sattr = sattr; - - data->arg.create.createmode = NFS3_CREATE_UNCHECKED; - if (flags & O_EXCL) { - data->arg.create.createmode = NFS3_CREATE_EXCLUSIVE; - data->arg.create.verifier[0] = jiffies; - data->arg.create.verifier[1] = current->pid; - } - - sattr->ia_mode &= ~current_umask(); - - for (;;) { - status = nfs3_do_create(dir, dentry, data); - - if (status != -ENOTSUPP) - break; - /* If the server doesn't support the exclusive creation - * semantics, try again with simple 'guarded' mode. */ - switch (data->arg.create.createmode) { - case NFS3_CREATE_EXCLUSIVE: - data->arg.create.createmode = NFS3_CREATE_GUARDED; - break; - - case NFS3_CREATE_GUARDED: - data->arg.create.createmode = NFS3_CREATE_UNCHECKED; - break; - - case NFS3_CREATE_UNCHECKED: - goto out; - } - nfs_fattr_init(data->res.dir_attr); - nfs_fattr_init(data->res.fattr); - } - - if (status != 0) - goto out; - - /* When we created the file with exclusive semantics, make - * sure we set the attributes afterwards. */ - if (data->arg.create.createmode == NFS3_CREATE_EXCLUSIVE) { - dprintk("NFS call setattr (post-create)\n"); - - if (!(sattr->ia_valid & ATTR_ATIME_SET)) - sattr->ia_valid |= ATTR_ATIME; - if (!(sattr->ia_valid & ATTR_MTIME_SET)) - sattr->ia_valid |= ATTR_MTIME; - - /* Note: we could use a guarded setattr here, but I'm - * not sure this buys us anything (and I'd have - * to revamp the NFSv3 XDR code) */ - status = nfs3_proc_setattr(dentry, data->res.fattr, sattr); - nfs_post_op_update_inode(dentry->d_inode, data->res.fattr); - dprintk("NFS reply setattr (post-create): %d\n", status); - if (status != 0) - goto out; - } - status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); -out: - nfs3_free_createdata(data); - dprintk("NFS reply create: %d\n", status); - return status; -} - -static int -nfs3_proc_remove(struct inode *dir, struct qstr *name) -{ - struct nfs_removeargs arg = { - .fh = NFS_FH(dir), - .name.len = name->len, - .name.name = name->name, - }; - struct nfs_removeres res; - struct rpc_message msg = { - .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE], - .rpc_argp = &arg, - .rpc_resp = &res, - }; - int status = -ENOMEM; - - dprintk("NFS call remove %s\n", name->name); - res.dir_attr = nfs_alloc_fattr(); - if (res.dir_attr == NULL) - goto out; - - status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); - nfs_post_op_update_inode(dir, res.dir_attr); - nfs_free_fattr(res.dir_attr); -out: - dprintk("NFS reply remove: %d\n", status); - return status; -} - -static void -nfs3_proc_unlink_setup(struct rpc_message *msg, struct inode *dir) -{ - msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE]; -} - -static void nfs3_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data) -{ - rpc_call_start(task); -} - -static int -nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir) -{ - struct nfs_removeres *res; - if (nfs3_async_handle_jukebox(task, dir)) - return 0; - res = task->tk_msg.rpc_resp; - nfs_post_op_update_inode(dir, res->dir_attr); - return 1; -} - -static void -nfs3_proc_rename_setup(struct rpc_message *msg, struct inode *dir) -{ - msg->rpc_proc = &nfs3_procedures[NFS3PROC_RENAME]; -} - -static void nfs3_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data) -{ - rpc_call_start(task); -} - -static int -nfs3_proc_rename_done(struct rpc_task *task, struct inode *old_dir, - struct inode *new_dir) -{ - struct nfs_renameres *res; - - if (nfs3_async_handle_jukebox(task, old_dir)) - return 0; - res = task->tk_msg.rpc_resp; - - nfs_post_op_update_inode(old_dir, res->old_fattr); - nfs_post_op_update_inode(new_dir, res->new_fattr); - return 1; -} - -static int -nfs3_proc_rename(struct inode *old_dir, struct qstr *old_name, - struct inode *new_dir, struct qstr *new_name) -{ - struct nfs_renameargs arg = { - .old_dir = NFS_FH(old_dir), - .old_name = old_name, - .new_dir = NFS_FH(new_dir), - .new_name = new_name, - }; - struct nfs_renameres res; - struct rpc_message msg = { - .rpc_proc = &nfs3_procedures[NFS3PROC_RENAME], - .rpc_argp = &arg, - .rpc_resp = &res, - }; - int status = -ENOMEM; - - dprintk("NFS call rename %s -> %s\n", old_name->name, new_name->name); - - res.old_fattr = nfs_alloc_fattr(); - res.new_fattr = nfs_alloc_fattr(); - if (res.old_fattr == NULL || res.new_fattr == NULL) - goto out; - - status = rpc_call_sync(NFS_CLIENT(old_dir), &msg, 0); - nfs_post_op_update_inode(old_dir, res.old_fattr); - nfs_post_op_update_inode(new_dir, res.new_fattr); -out: - nfs_free_fattr(res.old_fattr); - nfs_free_fattr(res.new_fattr); - dprintk("NFS reply rename: %d\n", status); - return status; -} - -static int -nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name) -{ - struct nfs3_linkargs arg = { - .fromfh = NFS_FH(inode), - .tofh = NFS_FH(dir), - .toname = name->name, - .tolen = name->len - }; - struct nfs3_linkres res; - struct rpc_message msg = { - .rpc_proc = &nfs3_procedures[NFS3PROC_LINK], - .rpc_argp = &arg, - .rpc_resp = &res, - }; - int status = -ENOMEM; - - dprintk("NFS call link %s\n", name->name); - res.fattr = nfs_alloc_fattr(); - res.dir_attr = nfs_alloc_fattr(); - if (res.fattr == NULL || res.dir_attr == NULL) - goto out; - - status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); - nfs_post_op_update_inode(dir, res.dir_attr); - nfs_post_op_update_inode(inode, res.fattr); -out: - nfs_free_fattr(res.dir_attr); - nfs_free_fattr(res.fattr); - dprintk("NFS reply link: %d\n", status); - return status; -} - -static int -nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page, - unsigned int len, struct iattr *sattr) -{ - struct nfs3_createdata *data; - int status = -ENOMEM; - - if (len > NFS3_MAXPATHLEN) - return -ENAMETOOLONG; - - dprintk("NFS call symlink %s\n", dentry->d_name.name); - - data = nfs3_alloc_createdata(); - if (data == NULL) - goto out; - data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK]; - data->arg.symlink.fromfh = NFS_FH(dir); - data->arg.symlink.fromname = dentry->d_name.name; - data->arg.symlink.fromlen = dentry->d_name.len; - data->arg.symlink.pages = &page; - data->arg.symlink.pathlen = len; - data->arg.symlink.sattr = sattr; - - status = nfs3_do_create(dir, dentry, data); - - nfs3_free_createdata(data); -out: - dprintk("NFS reply symlink: %d\n", status); - return status; -} - -static int -nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr) -{ - struct nfs3_createdata *data; - umode_t mode = sattr->ia_mode; - int status = -ENOMEM; - - dprintk("NFS call mkdir %s\n", dentry->d_name.name); - - sattr->ia_mode &= ~current_umask(); - - data = nfs3_alloc_createdata(); - if (data == NULL) - goto out; - - data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR]; - data->arg.mkdir.fh = NFS_FH(dir); - data->arg.mkdir.name = dentry->d_name.name; - data->arg.mkdir.len = dentry->d_name.len; - data->arg.mkdir.sattr = sattr; - - status = nfs3_do_create(dir, dentry, data); - if (status != 0) - goto out; - - status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); -out: - nfs3_free_createdata(data); - dprintk("NFS reply mkdir: %d\n", status); - return status; -} - -static int -nfs3_proc_rmdir(struct inode *dir, struct qstr *name) -{ - struct nfs_fattr *dir_attr; - struct nfs3_diropargs arg = { - .fh = NFS_FH(dir), - .name = name->name, - .len = name->len - }; - struct rpc_message msg = { - .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR], - .rpc_argp = &arg, - }; - int status = -ENOMEM; - - dprintk("NFS call rmdir %s\n", name->name); - dir_attr = nfs_alloc_fattr(); - if (dir_attr == NULL) - goto out; - - msg.rpc_resp = dir_attr; - status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); - nfs_post_op_update_inode(dir, dir_attr); - nfs_free_fattr(dir_attr); -out: - dprintk("NFS reply rmdir: %d\n", status); - return status; -} - -/* - * The READDIR implementation is somewhat hackish - we pass the user buffer - * to the encode function, which installs it in the receive iovec. - * The decode function itself doesn't perform any decoding, it just makes - * sure the reply is syntactically correct. - * - * Also note that this implementation handles both plain readdir and - * readdirplus. - */ -static int -nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred, - u64 cookie, struct page **pages, unsigned int count, int plus) -{ - struct inode *dir = dentry->d_inode; - __be32 *verf = NFS_COOKIEVERF(dir); - struct nfs3_readdirargs arg = { - .fh = NFS_FH(dir), - .cookie = cookie, - .verf = {verf[0], verf[1]}, - .plus = plus, - .count = count, - .pages = pages - }; - struct nfs3_readdirres res = { - .verf = verf, - .plus = plus - }; - struct rpc_message msg = { - .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR], - .rpc_argp = &arg, - .rpc_resp = &res, - .rpc_cred = cred - }; - int status = -ENOMEM; - - if (plus) - msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS]; - - dprintk("NFS call readdir%s %d\n", - plus? "plus" : "", (unsigned int) cookie); - - res.dir_attr = nfs_alloc_fattr(); - if (res.dir_attr == NULL) - goto out; - - status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); - - nfs_invalidate_atime(dir); - nfs_refresh_inode(dir, res.dir_attr); - - nfs_free_fattr(res.dir_attr); -out: - dprintk("NFS reply readdir%s: %d\n", - plus? "plus" : "", status); - return status; -} - -static int -nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr, - dev_t rdev) -{ - struct nfs3_createdata *data; - umode_t mode = sattr->ia_mode; - int status = -ENOMEM; - - dprintk("NFS call mknod %s %u:%u\n", dentry->d_name.name, - MAJOR(rdev), MINOR(rdev)); - - sattr->ia_mode &= ~current_umask(); - - data = nfs3_alloc_createdata(); - if (data == NULL) - goto out; - - data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD]; - data->arg.mknod.fh = NFS_FH(dir); - data->arg.mknod.name = dentry->d_name.name; - data->arg.mknod.len = dentry->d_name.len; - data->arg.mknod.sattr = sattr; - data->arg.mknod.rdev = rdev; - - switch (sattr->ia_mode & S_IFMT) { - case S_IFBLK: - data->arg.mknod.type = NF3BLK; - break; - case S_IFCHR: - data->arg.mknod.type = NF3CHR; - break; - case S_IFIFO: - data->arg.mknod.type = NF3FIFO; - break; - case S_IFSOCK: - data->arg.mknod.type = NF3SOCK; - break; - default: - status = -EINVAL; - goto out; - } - - status = nfs3_do_create(dir, dentry, data); - if (status != 0) - goto out; - status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); -out: - nfs3_free_createdata(data); - dprintk("NFS reply mknod: %d\n", status); - return status; -} - -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_sync(server->client, &msg, 0); - dprintk("NFS reply fsstat: %d\n", status); - return status; -} - -static int -do_proc_fsinfo(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("NFS call fsinfo\n"); - nfs_fattr_init(info->fattr); - status = rpc_call_sync(client, &msg, 0); - dprintk("NFS reply fsinfo: %d\n", status); - return status; -} - -/* - * Bare-bones access to fsinfo: this is for nfs_get_root/nfs_get_sb via - * nfs_create_server - */ -static int -nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, - struct nfs_fsinfo *info) -{ - int status; - - status = do_proc_fsinfo(server->client, fhandle, info); - if (status && server->nfs_client->cl_rpcclient != server->client) - status = do_proc_fsinfo(server->nfs_client->cl_rpcclient, fhandle, info); - return status; -} - -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_sync(server->client, &msg, 0); - dprintk("NFS reply pathconf: %d\n", status); - return status; -} - -static int nfs3_read_done(struct rpc_task *task, struct nfs_read_data *data) -{ - if (nfs3_async_handle_jukebox(task, data->inode)) - return -EAGAIN; - - nfs_invalidate_atime(data->inode); - nfs_refresh_inode(data->inode, &data->fattr); - return 0; -} - -static void nfs3_proc_read_setup(struct nfs_read_data *data, struct rpc_message *msg) -{ - msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ]; -} - -static void nfs3_proc_read_rpc_prepare(struct rpc_task *task, struct nfs_read_data *data) -{ - rpc_call_start(task); -} - -static int nfs3_write_done(struct rpc_task *task, struct nfs_write_data *data) -{ - if (nfs3_async_handle_jukebox(task, data->inode)) - return -EAGAIN; - if (task->tk_status >= 0) - nfs_post_op_update_inode_force_wcc(data->inode, data->res.fattr); - return 0; -} - -static void nfs3_proc_write_setup(struct nfs_write_data *data, struct rpc_message *msg) -{ - msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE]; -} - -static void nfs3_proc_write_rpc_prepare(struct rpc_task *task, struct nfs_write_data *data) -{ - rpc_call_start(task); -} - -static int nfs3_commit_done(struct rpc_task *task, struct nfs_write_data *data) -{ - if (nfs3_async_handle_jukebox(task, data->inode)) - return -EAGAIN; - nfs_refresh_inode(data->inode, data->res.fattr); - return 0; -} - -static void nfs3_proc_commit_setup(struct nfs_write_data *data, struct rpc_message *msg) -{ - msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT]; -} - -static int -nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl) -{ - struct inode *inode = filp->f_path.dentry->d_inode; - - return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl); -} - -const struct nfs_rpc_ops nfs_v3_clientops = { - .version = 3, /* protocol version */ - .dentry_ops = &nfs_dentry_operations, - .dir_inode_ops = &nfs3_dir_inode_operations, - .file_inode_ops = &nfs3_file_inode_operations, - .file_ops = &nfs_file_operations, - .getroot = nfs3_proc_get_root, - .getattr = nfs3_proc_getattr, - .setattr = nfs3_proc_setattr, - .lookup = nfs3_proc_lookup, - .access = nfs3_proc_access, - .readlink = nfs3_proc_readlink, - .create = nfs3_proc_create, - .remove = nfs3_proc_remove, - .unlink_setup = nfs3_proc_unlink_setup, - .unlink_rpc_prepare = nfs3_proc_unlink_rpc_prepare, - .unlink_done = nfs3_proc_unlink_done, - .rename = nfs3_proc_rename, - .rename_setup = nfs3_proc_rename_setup, - .rename_rpc_prepare = nfs3_proc_rename_rpc_prepare, - .rename_done = nfs3_proc_rename_done, - .link = nfs3_proc_link, - .symlink = nfs3_proc_symlink, - .mkdir = nfs3_proc_mkdir, - .rmdir = nfs3_proc_rmdir, - .readdir = nfs3_proc_readdir, - .mknod = nfs3_proc_mknod, - .statfs = nfs3_proc_statfs, - .fsinfo = nfs3_proc_fsinfo, - .pathconf = nfs3_proc_pathconf, - .decode_dirent = nfs3_decode_dirent, - .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_done = nfs3_commit_done, - .lock = nfs3_proc_lock, - .clear_acl_cache = nfs3_forget_cached_acls, - .close_context = nfs_close_context, - .init_client = nfs_init_client, -}; 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