| |
| /* |
| * SPU file system |
| * |
| * (C) Copyright IBM Deutschland Entwicklung GmbH 2005 |
| * |
| * Author: Arnd Bergmann <arndb@de.ibm.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2, or (at your option) |
| * any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| #include <linux/file.h> |
| #include <linux/fs.h> |
| #include <linux/fsnotify.h> |
| #include <linux/backing-dev.h> |
| #include <linux/init.h> |
| #include <linux/ioctl.h> |
| #include <linux/module.h> |
| #include <linux/mount.h> |
| #include <linux/namei.h> |
| #include <linux/pagemap.h> |
| #include <linux/poll.h> |
| #include <linux/slab.h> |
| #include <linux/parser.h> |
| |
| #include <asm/prom.h> |
| #include <asm/spu.h> |
| #include <asm/spu_priv1.h> |
| #include <asm/uaccess.h> |
| |
| #include "spufs.h" |
| |
| struct spufs_sb_info { |
| int debug; |
| }; |
| |
| static struct kmem_cache *spufs_inode_cache; |
| char *isolated_loader; |
| static int isolated_loader_size; |
| |
| static struct spufs_sb_info *spufs_get_sb_info(struct super_block *sb) |
| { |
| return sb->s_fs_info; |
| } |
| |
| static struct inode * |
| spufs_alloc_inode(struct super_block *sb) |
| { |
| struct spufs_inode_info *ei; |
| |
| ei = kmem_cache_alloc(spufs_inode_cache, GFP_KERNEL); |
| if (!ei) |
| return NULL; |
| |
| ei->i_gang = NULL; |
| ei->i_ctx = NULL; |
| ei->i_openers = 0; |
| |
| return &ei->vfs_inode; |
| } |
| |
| static void spufs_i_callback(struct rcu_head *head) |
| { |
| struct inode *inode = container_of(head, struct inode, i_rcu); |
| kmem_cache_free(spufs_inode_cache, SPUFS_I(inode)); |
| } |
| |
| static void spufs_destroy_inode(struct inode *inode) |
| { |
| call_rcu(&inode->i_rcu, spufs_i_callback); |
| } |
| |
| static void |
| spufs_init_once(void *p) |
| { |
| struct spufs_inode_info *ei = p; |
| |
| inode_init_once(&ei->vfs_inode); |
| } |
| |
| static struct inode * |
| spufs_new_inode(struct super_block *sb, umode_t mode) |
| { |
| struct inode *inode; |
| |
| inode = new_inode(sb); |
| if (!inode) |
| goto out; |
| |
| inode->i_ino = get_next_ino(); |
| inode->i_mode = mode; |
| inode->i_uid = current_fsuid(); |
| inode->i_gid = current_fsgid(); |
| inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; |
| out: |
| return inode; |
| } |
| |
| static int |
| spufs_setattr(struct dentry *dentry, struct iattr *attr) |
| { |
| struct inode *inode = d_inode(dentry); |
| |
| if ((attr->ia_valid & ATTR_SIZE) && |
| (attr->ia_size != inode->i_size)) |
| return -EINVAL; |
| setattr_copy(inode, attr); |
| mark_inode_dirty(inode); |
| return 0; |
| } |
| |
| |
| static int |
| spufs_new_file(struct super_block *sb, struct dentry *dentry, |
| const struct file_operations *fops, umode_t mode, |
| size_t size, struct spu_context *ctx) |
| { |
| static const struct inode_operations spufs_file_iops = { |
| .setattr = spufs_setattr, |
| }; |
| struct inode *inode; |
| int ret; |
| |
| ret = -ENOSPC; |
| inode = spufs_new_inode(sb, S_IFREG | mode); |
| if (!inode) |
| goto out; |
| |
| ret = 0; |
| inode->i_op = &spufs_file_iops; |
| inode->i_fop = fops; |
| inode->i_size = size; |
| inode->i_private = SPUFS_I(inode)->i_ctx = get_spu_context(ctx); |
| d_add(dentry, inode); |
| out: |
| return ret; |
| } |
| |
| static void |
| spufs_evict_inode(struct inode *inode) |
| { |
| struct spufs_inode_info *ei = SPUFS_I(inode); |
| clear_inode(inode); |
| if (ei->i_ctx) |
| put_spu_context(ei->i_ctx); |
| if (ei->i_gang) |
| put_spu_gang(ei->i_gang); |
| } |
| |
| static void spufs_prune_dir(struct dentry *dir) |
| { |
| struct dentry *dentry, *tmp; |
| |
| inode_lock(d_inode(dir)); |
| list_for_each_entry_safe(dentry, tmp, &dir->d_subdirs, d_child) { |
| spin_lock(&dentry->d_lock); |
| if (simple_positive(dentry)) { |
| dget_dlock(dentry); |
| __d_drop(dentry); |
| spin_unlock(&dentry->d_lock); |
| simple_unlink(d_inode(dir), dentry); |
| /* XXX: what was dcache_lock protecting here? Other |
| * filesystems (IB, configfs) release dcache_lock |
| * before unlink */ |
| dput(dentry); |
| } else { |
| spin_unlock(&dentry->d_lock); |
| } |
| } |
| shrink_dcache_parent(dir); |
| inode_unlock(d_inode(dir)); |
| } |
| |
| /* Caller must hold parent->i_mutex */ |
| static int spufs_rmdir(struct inode *parent, struct dentry *dir) |
| { |
| /* remove all entries */ |
| int res; |
| spufs_prune_dir(dir); |
| d_drop(dir); |
| res = simple_rmdir(parent, dir); |
| /* We have to give up the mm_struct */ |
| spu_forget(SPUFS_I(d_inode(dir))->i_ctx); |
| return res; |
| } |
| |
| static int spufs_fill_dir(struct dentry *dir, |
| const struct spufs_tree_descr *files, umode_t mode, |
| struct spu_context *ctx) |
| { |
| while (files->name && files->name[0]) { |
| int ret; |
| struct dentry *dentry = d_alloc_name(dir, files->name); |
| if (!dentry) |
| return -ENOMEM; |
| ret = spufs_new_file(dir->d_sb, dentry, files->ops, |
| files->mode & mode, files->size, ctx); |
| if (ret) |
| return ret; |
| files++; |
| } |
| return 0; |
| } |
| |
| static int spufs_dir_close(struct inode *inode, struct file *file) |
| { |
| struct spu_context *ctx; |
| struct inode *parent; |
| struct dentry *dir; |
| int ret; |
| |
| dir = file->f_path.dentry; |
| parent = d_inode(dir->d_parent); |
| ctx = SPUFS_I(d_inode(dir))->i_ctx; |
| |
| inode_lock_nested(parent, I_MUTEX_PARENT); |
| ret = spufs_rmdir(parent, dir); |
| inode_unlock(parent); |
| WARN_ON(ret); |
| |
| return dcache_dir_close(inode, file); |
| } |
| |
| const struct file_operations spufs_context_fops = { |
| .open = dcache_dir_open, |
| .release = spufs_dir_close, |
| .llseek = dcache_dir_lseek, |
| .read = generic_read_dir, |
| .iterate = dcache_readdir, |
| .fsync = noop_fsync, |
| }; |
| EXPORT_SYMBOL_GPL(spufs_context_fops); |
| |
| static int |
| spufs_mkdir(struct inode *dir, struct dentry *dentry, unsigned int flags, |
| umode_t mode) |
| { |
| int ret; |
| struct inode *inode; |
| struct spu_context *ctx; |
| |
| inode = spufs_new_inode(dir->i_sb, mode | S_IFDIR); |
| if (!inode) |
| return -ENOSPC; |
| |
| if (dir->i_mode & S_ISGID) { |
| inode->i_gid = dir->i_gid; |
| inode->i_mode &= S_ISGID; |
| } |
| ctx = alloc_spu_context(SPUFS_I(dir)->i_gang); /* XXX gang */ |
| SPUFS_I(inode)->i_ctx = ctx; |
| if (!ctx) { |
| iput(inode); |
| return -ENOSPC; |
| } |
| |
| ctx->flags = flags; |
| inode->i_op = &simple_dir_inode_operations; |
| inode->i_fop = &simple_dir_operations; |
| |
| inode_lock(inode); |
| |
| dget(dentry); |
| inc_nlink(dir); |
| inc_nlink(inode); |
| |
| d_instantiate(dentry, inode); |
| |
| if (flags & SPU_CREATE_NOSCHED) |
| ret = spufs_fill_dir(dentry, spufs_dir_nosched_contents, |
| mode, ctx); |
| else |
| ret = spufs_fill_dir(dentry, spufs_dir_contents, mode, ctx); |
| |
| if (!ret && spufs_get_sb_info(dir->i_sb)->debug) |
| ret = spufs_fill_dir(dentry, spufs_dir_debug_contents, |
| mode, ctx); |
| |
| if (ret) |
| spufs_rmdir(dir, dentry); |
| |
| inode_unlock(inode); |
| |
| return ret; |
| } |
| |
| static int spufs_context_open(struct path *path) |
| { |
| int ret; |
| struct file *filp; |
| |
| ret = get_unused_fd_flags(0); |
| if (ret < 0) |
| return ret; |
| |
| filp = dentry_open(path, O_RDONLY, current_cred()); |
| if (IS_ERR(filp)) { |
| put_unused_fd(ret); |
| return PTR_ERR(filp); |
| } |
| |
| filp->f_op = &spufs_context_fops; |
| fd_install(ret, filp); |
| return ret; |
| } |
| |
| static struct spu_context * |
| spufs_assert_affinity(unsigned int flags, struct spu_gang *gang, |
| struct file *filp) |
| { |
| struct spu_context *tmp, *neighbor, *err; |
| int count, node; |
| int aff_supp; |
| |
| aff_supp = !list_empty(&(list_entry(cbe_spu_info[0].spus.next, |
| struct spu, cbe_list))->aff_list); |
| |
| if (!aff_supp) |
| return ERR_PTR(-EINVAL); |
| |
| if (flags & SPU_CREATE_GANG) |
| return ERR_PTR(-EINVAL); |
| |
| if (flags & SPU_CREATE_AFFINITY_MEM && |
| gang->aff_ref_ctx && |
| gang->aff_ref_ctx->flags & SPU_CREATE_AFFINITY_MEM) |
| return ERR_PTR(-EEXIST); |
| |
| if (gang->aff_flags & AFF_MERGED) |
| return ERR_PTR(-EBUSY); |
| |
| neighbor = NULL; |
| if (flags & SPU_CREATE_AFFINITY_SPU) { |
| if (!filp || filp->f_op != &spufs_context_fops) |
| return ERR_PTR(-EINVAL); |
| |
| neighbor = get_spu_context( |
| SPUFS_I(file_inode(filp))->i_ctx); |
| |
| if (!list_empty(&neighbor->aff_list) && !(neighbor->aff_head) && |
| !list_is_last(&neighbor->aff_list, &gang->aff_list_head) && |
| !list_entry(neighbor->aff_list.next, struct spu_context, |
| aff_list)->aff_head) { |
| err = ERR_PTR(-EEXIST); |
| goto out_put_neighbor; |
| } |
| |
| if (gang != neighbor->gang) { |
| err = ERR_PTR(-EINVAL); |
| goto out_put_neighbor; |
| } |
| |
| count = 1; |
| list_for_each_entry(tmp, &gang->aff_list_head, aff_list) |
| count++; |
| if (list_empty(&neighbor->aff_list)) |
| count++; |
| |
| for (node = 0; node < MAX_NUMNODES; node++) { |
| if ((cbe_spu_info[node].n_spus - atomic_read( |
| &cbe_spu_info[node].reserved_spus)) >= count) |
| break; |
| } |
| |
| if (node == MAX_NUMNODES) { |
| err = ERR_PTR(-EEXIST); |
| goto out_put_neighbor; |
| } |
| } |
| |
| return neighbor; |
| |
| out_put_neighbor: |
| put_spu_context(neighbor); |
| return err; |
| } |
| |
| static void |
| spufs_set_affinity(unsigned int flags, struct spu_context *ctx, |
| struct spu_context *neighbor) |
| { |
| if (flags & SPU_CREATE_AFFINITY_MEM) |
| ctx->gang->aff_ref_ctx = ctx; |
| |
| if (flags & SPU_CREATE_AFFINITY_SPU) { |
| if (list_empty(&neighbor->aff_list)) { |
| list_add_tail(&neighbor->aff_list, |
| &ctx->gang->aff_list_head); |
| neighbor->aff_head = 1; |
| } |
| |
| if (list_is_last(&neighbor->aff_list, &ctx->gang->aff_list_head) |
| || list_entry(neighbor->aff_list.next, struct spu_context, |
| aff_list)->aff_head) { |
| list_add(&ctx->aff_list, &neighbor->aff_list); |
| } else { |
| list_add_tail(&ctx->aff_list, &neighbor->aff_list); |
| if (neighbor->aff_head) { |
| neighbor->aff_head = 0; |
| ctx->aff_head = 1; |
| } |
| } |
| |
| if (!ctx->gang->aff_ref_ctx) |
| ctx->gang->aff_ref_ctx = ctx; |
| } |
| } |
| |
| static int |
| spufs_create_context(struct inode *inode, struct dentry *dentry, |
| struct vfsmount *mnt, int flags, umode_t mode, |
| struct file *aff_filp) |
| { |
| int ret; |
| int affinity; |
| struct spu_gang *gang; |
| struct spu_context *neighbor; |
| struct path path = {.mnt = mnt, .dentry = dentry}; |
| |
| if ((flags & SPU_CREATE_NOSCHED) && |
| !capable(CAP_SYS_NICE)) |
| return -EPERM; |
| |
| if ((flags & (SPU_CREATE_NOSCHED | SPU_CREATE_ISOLATE)) |
| == SPU_CREATE_ISOLATE) |
| return -EINVAL; |
| |
| if ((flags & SPU_CREATE_ISOLATE) && !isolated_loader) |
| return -ENODEV; |
| |
| gang = NULL; |
| neighbor = NULL; |
| affinity = flags & (SPU_CREATE_AFFINITY_MEM | SPU_CREATE_AFFINITY_SPU); |
| if (affinity) { |
| gang = SPUFS_I(inode)->i_gang; |
| if (!gang) |
| return -EINVAL; |
| mutex_lock(&gang->aff_mutex); |
| neighbor = spufs_assert_affinity(flags, gang, aff_filp); |
| if (IS_ERR(neighbor)) { |
| ret = PTR_ERR(neighbor); |
| goto out_aff_unlock; |
| } |
| } |
| |
| ret = spufs_mkdir(inode, dentry, flags, mode & S_IRWXUGO); |
| if (ret) |
| goto out_aff_unlock; |
| |
| if (affinity) { |
| spufs_set_affinity(flags, SPUFS_I(d_inode(dentry))->i_ctx, |
| neighbor); |
| if (neighbor) |
| put_spu_context(neighbor); |
| } |
| |
| ret = spufs_context_open(&path); |
| if (ret < 0) |
| WARN_ON(spufs_rmdir(inode, dentry)); |
| |
| out_aff_unlock: |
| if (affinity) |
| mutex_unlock(&gang->aff_mutex); |
| return ret; |
| } |
| |
| static int |
| spufs_mkgang(struct inode *dir, struct dentry *dentry, umode_t mode) |
| { |
| int ret; |
| struct inode *inode; |
| struct spu_gang *gang; |
| |
| ret = -ENOSPC; |
| inode = spufs_new_inode(dir->i_sb, mode | S_IFDIR); |
| if (!inode) |
| goto out; |
| |
| ret = 0; |
| if (dir->i_mode & S_ISGID) { |
| inode->i_gid = dir->i_gid; |
| inode->i_mode &= S_ISGID; |
| } |
| gang = alloc_spu_gang(); |
| SPUFS_I(inode)->i_ctx = NULL; |
| SPUFS_I(inode)->i_gang = gang; |
| if (!gang) |
| goto out_iput; |
| |
| inode->i_op = &simple_dir_inode_operations; |
| inode->i_fop = &simple_dir_operations; |
| |
| d_instantiate(dentry, inode); |
| inc_nlink(dir); |
| inc_nlink(d_inode(dentry)); |
| return ret; |
| |
| out_iput: |
| iput(inode); |
| out: |
| return ret; |
| } |
| |
| static int spufs_gang_open(struct path *path) |
| { |
| int ret; |
| struct file *filp; |
| |
| ret = get_unused_fd_flags(0); |
| if (ret < 0) |
| return ret; |
| |
| /* |
| * get references for dget and mntget, will be released |
| * in error path of *_open(). |
| */ |
| filp = dentry_open(path, O_RDONLY, current_cred()); |
| if (IS_ERR(filp)) { |
| put_unused_fd(ret); |
| return PTR_ERR(filp); |
| } |
| |
| filp->f_op = &simple_dir_operations; |
| fd_install(ret, filp); |
| return ret; |
| } |
| |
| static int spufs_create_gang(struct inode *inode, |
| struct dentry *dentry, |
| struct vfsmount *mnt, umode_t mode) |
| { |
| struct path path = {.mnt = mnt, .dentry = dentry}; |
| int ret; |
| |
| ret = spufs_mkgang(inode, dentry, mode & S_IRWXUGO); |
| if (!ret) { |
| ret = spufs_gang_open(&path); |
| if (ret < 0) { |
| int err = simple_rmdir(inode, dentry); |
| WARN_ON(err); |
| } |
| } |
| return ret; |
| } |
| |
| |
| static struct file_system_type spufs_type; |
| |
| long spufs_create(struct path *path, struct dentry *dentry, |
| unsigned int flags, umode_t mode, struct file *filp) |
| { |
| struct inode *dir = d_inode(path->dentry); |
| int ret; |
| |
| /* check if we are on spufs */ |
| if (path->dentry->d_sb->s_type != &spufs_type) |
| return -EINVAL; |
| |
| /* don't accept undefined flags */ |
| if (flags & (~SPU_CREATE_FLAG_ALL)) |
| return -EINVAL; |
| |
| /* only threads can be underneath a gang */ |
| if (path->dentry != path->dentry->d_sb->s_root) |
| if ((flags & SPU_CREATE_GANG) || !SPUFS_I(dir)->i_gang) |
| return -EINVAL; |
| |
| mode &= ~current_umask(); |
| |
| if (flags & SPU_CREATE_GANG) |
| ret = spufs_create_gang(dir, dentry, path->mnt, mode); |
| else |
| ret = spufs_create_context(dir, dentry, path->mnt, flags, mode, |
| filp); |
| if (ret >= 0) |
| fsnotify_mkdir(dir, dentry); |
| |
| return ret; |
| } |
| |
| /* File system initialization */ |
| enum { |
| Opt_uid, Opt_gid, Opt_mode, Opt_debug, Opt_err, |
| }; |
| |
| static const match_table_t spufs_tokens = { |
| { Opt_uid, "uid=%d" }, |
| { Opt_gid, "gid=%d" }, |
| { Opt_mode, "mode=%o" }, |
| { Opt_debug, "debug" }, |
| { Opt_err, NULL }, |
| }; |
| |
| static int |
| spufs_parse_options(struct super_block *sb, char *options, struct inode *root) |
| { |
| char *p; |
| substring_t args[MAX_OPT_ARGS]; |
| |
| while ((p = strsep(&options, ",")) != NULL) { |
| int token, option; |
| |
| if (!*p) |
| continue; |
| |
| token = match_token(p, spufs_tokens, args); |
| switch (token) { |
| case Opt_uid: |
| if (match_int(&args[0], &option)) |
| return 0; |
| root->i_uid = make_kuid(current_user_ns(), option); |
| if (!uid_valid(root->i_uid)) |
| return 0; |
| break; |
| case Opt_gid: |
| if (match_int(&args[0], &option)) |
| return 0; |
| root->i_gid = make_kgid(current_user_ns(), option); |
| if (!gid_valid(root->i_gid)) |
| return 0; |
| break; |
| case Opt_mode: |
| if (match_octal(&args[0], &option)) |
| return 0; |
| root->i_mode = option | S_IFDIR; |
| break; |
| case Opt_debug: |
| spufs_get_sb_info(sb)->debug = 1; |
| break; |
| default: |
| return 0; |
| } |
| } |
| return 1; |
| } |
| |
| static void spufs_exit_isolated_loader(void) |
| { |
| free_pages((unsigned long) isolated_loader, |
| get_order(isolated_loader_size)); |
| } |
| |
| static void |
| spufs_init_isolated_loader(void) |
| { |
| struct device_node *dn; |
| const char *loader; |
| int size; |
| |
| dn = of_find_node_by_path("/spu-isolation"); |
| if (!dn) |
| return; |
| |
| loader = of_get_property(dn, "loader", &size); |
| if (!loader) |
| return; |
| |
| /* the loader must be align on a 16 byte boundary */ |
| isolated_loader = (char *)__get_free_pages(GFP_KERNEL, get_order(size)); |
| if (!isolated_loader) |
| return; |
| |
| isolated_loader_size = size; |
| memcpy(isolated_loader, loader, size); |
| printk(KERN_INFO "spufs: SPU isolation mode enabled\n"); |
| } |
| |
| static int |
| spufs_create_root(struct super_block *sb, void *data) |
| { |
| struct inode *inode; |
| int ret; |
| |
| ret = -ENODEV; |
| if (!spu_management_ops) |
| goto out; |
| |
| ret = -ENOMEM; |
| inode = spufs_new_inode(sb, S_IFDIR | 0775); |
| if (!inode) |
| goto out; |
| |
| inode->i_op = &simple_dir_inode_operations; |
| inode->i_fop = &simple_dir_operations; |
| SPUFS_I(inode)->i_ctx = NULL; |
| inc_nlink(inode); |
| |
| ret = -EINVAL; |
| if (!spufs_parse_options(sb, data, inode)) |
| goto out_iput; |
| |
| ret = -ENOMEM; |
| sb->s_root = d_make_root(inode); |
| if (!sb->s_root) |
| goto out; |
| |
| return 0; |
| out_iput: |
| iput(inode); |
| out: |
| return ret; |
| } |
| |
| static int |
| spufs_fill_super(struct super_block *sb, void *data, int silent) |
| { |
| struct spufs_sb_info *info; |
| static const struct super_operations s_ops = { |
| .alloc_inode = spufs_alloc_inode, |
| .destroy_inode = spufs_destroy_inode, |
| .statfs = simple_statfs, |
| .evict_inode = spufs_evict_inode, |
| .show_options = generic_show_options, |
| }; |
| |
| save_mount_options(sb, data); |
| |
| info = kzalloc(sizeof(*info), GFP_KERNEL); |
| if (!info) |
| return -ENOMEM; |
| |
| sb->s_maxbytes = MAX_LFS_FILESIZE; |
| sb->s_blocksize = PAGE_SIZE; |
| sb->s_blocksize_bits = PAGE_SHIFT; |
| sb->s_magic = SPUFS_MAGIC; |
| sb->s_op = &s_ops; |
| sb->s_fs_info = info; |
| |
| return spufs_create_root(sb, data); |
| } |
| |
| static struct dentry * |
| spufs_mount(struct file_system_type *fstype, int flags, |
| const char *name, void *data) |
| { |
| return mount_single(fstype, flags, data, spufs_fill_super); |
| } |
| |
| static struct file_system_type spufs_type = { |
| .owner = THIS_MODULE, |
| .name = "spufs", |
| .mount = spufs_mount, |
| .kill_sb = kill_litter_super, |
| }; |
| MODULE_ALIAS_FS("spufs"); |
| |
| static int __init spufs_init(void) |
| { |
| int ret; |
| |
| ret = -ENODEV; |
| if (!spu_management_ops) |
| goto out; |
| |
| ret = -ENOMEM; |
| spufs_inode_cache = kmem_cache_create("spufs_inode_cache", |
| sizeof(struct spufs_inode_info), 0, |
| SLAB_HWCACHE_ALIGN|SLAB_ACCOUNT, spufs_init_once); |
| |
| if (!spufs_inode_cache) |
| goto out; |
| ret = spu_sched_init(); |
| if (ret) |
| goto out_cache; |
| ret = register_spu_syscalls(&spufs_calls); |
| if (ret) |
| goto out_sched; |
| ret = register_filesystem(&spufs_type); |
| if (ret) |
| goto out_syscalls; |
| |
| spufs_init_isolated_loader(); |
| |
| return 0; |
| |
| out_syscalls: |
| unregister_spu_syscalls(&spufs_calls); |
| out_sched: |
| spu_sched_exit(); |
| out_cache: |
| kmem_cache_destroy(spufs_inode_cache); |
| out: |
| return ret; |
| } |
| module_init(spufs_init); |
| |
| static void __exit spufs_exit(void) |
| { |
| spu_sched_exit(); |
| spufs_exit_isolated_loader(); |
| unregister_spu_syscalls(&spufs_calls); |
| unregister_filesystem(&spufs_type); |
| kmem_cache_destroy(spufs_inode_cache); |
| } |
| module_exit(spufs_exit); |
| |
| MODULE_LICENSE("GPL"); |
| MODULE_AUTHOR("Arnd Bergmann <arndb@de.ibm.com>"); |
| |