#define FILE_HOSTFS_I(file) HOSTFS_I(file_inode(file))
+static struct kmem_cache *hostfs_inode_cache;
+
/* Changed in hostfs_args before the kernel starts running */
static char *root_ino = "";
static int append = 0;
{
struct hostfs_inode_info *hi;
- hi = kmalloc(sizeof(*hi), GFP_KERNEL_ACCOUNT);
+ hi = kmem_cache_alloc(hostfs_inode_cache, GFP_KERNEL_ACCOUNT);
if (hi == NULL)
return NULL;
hi->fd = -1;
static void hostfs_free_inode(struct inode *inode)
{
- kfree(HOSTFS_I(inode));
+ kmem_cache_free(hostfs_inode_cache, HOSTFS_I(inode));
}
static int hostfs_show_options(struct seq_file *seq, struct dentry *root)
return 0;
}
-static int hostfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
- bool excl)
+static int hostfs_create(struct user_namespace *mnt_userns, struct inode *dir,
+ struct dentry *dentry, umode_t mode, bool excl)
{
struct inode *inode;
char *name;
return err;
}
-static int hostfs_symlink(struct inode *ino, struct dentry *dentry,
- const char *to)
+static int hostfs_symlink(struct user_namespace *mnt_userns, struct inode *ino,
+ struct dentry *dentry, const char *to)
{
char *file;
int err;
return err;
}
-static int hostfs_mkdir(struct inode *ino, struct dentry *dentry, umode_t mode)
+static int hostfs_mkdir(struct user_namespace *mnt_userns, struct inode *ino,
+ struct dentry *dentry, umode_t mode)
{
char *file;
int err;
return err;
}
-static int hostfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
+static int hostfs_mknod(struct user_namespace *mnt_userns, struct inode *dir,
+ struct dentry *dentry, umode_t mode, dev_t dev)
{
struct inode *inode;
char *name;
return err;
}
-static int hostfs_rename2(struct inode *old_dir, struct dentry *old_dentry,
+static int hostfs_rename2(struct user_namespace *mnt_userns,
+ struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry,
unsigned int flags)
{
return err;
}
-static int hostfs_permission(struct inode *ino, int desired)
+static int hostfs_permission(struct user_namespace *mnt_userns,
+ struct inode *ino, int desired)
{
char *name;
int r = 0, w = 0, x = 0, err;
err = access_file(name, r, w, x);
__putname(name);
if (!err)
- err = generic_permission(ino, desired);
+ err = generic_permission(&init_user_ns, ino, desired);
return err;
}
-static int hostfs_setattr(struct dentry *dentry, struct iattr *attr)
+static int hostfs_setattr(struct user_namespace *mnt_userns,
+ struct dentry *dentry, struct iattr *attr)
{
struct inode *inode = d_inode(dentry);
struct hostfs_iattr attrs;
int fd = HOSTFS_I(inode)->fd;
- err = setattr_prepare(dentry, attr);
+ err = setattr_prepare(&init_user_ns, dentry, attr);
if (err)
return err;
attr->ia_size != i_size_read(inode))
truncate_setsize(inode, attr->ia_size);
- setattr_copy(inode, attr);
+ setattr_copy(&init_user_ns, inode, attr);
mark_inode_dirty(inode);
return 0;
}
static int __init init_hostfs(void)
{
+ hostfs_inode_cache = KMEM_CACHE(hostfs_inode_info, 0);
+ if (!hostfs_inode_cache)
+ return -ENOMEM;
return register_filesystem(&hostfs_type);
}
static void __exit exit_hostfs(void)
{
unregister_filesystem(&hostfs_type);
+ kmem_cache_destroy(hostfs_inode_cache);
}
module_init(init_hostfs)