static int fuse_fill_super(struct super_block *sb, void *data, int silent)
{
struct fuse_conn *fc;
struct inode *root;
struct fuse_mount_data d;
struct file *file;
int err;
if (!parse_fuse_opt((char *) data, &d))
return -EINVAL;
sb->s_blocksize = PAGE_CACHE_SIZE;
sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
sb->s_magic = FUSE_SUPER_MAGIC;
sb->s_op = &fuse_super_operations;
sb->s_maxbytes = MAX_LFS_FILESIZE;
#ifndef FUSE_MAINLINE
#ifdef KERNEL_2_6
sb->s_export_op = &fuse_export_operations;
#endif
#endif
file = fget(d.fd);
if (!file)
return -EINVAL;
fc = get_conn(file, sb);
fput(file);
if (IS_ERR(fc))
return PTR_ERR(fc);
fc->flags = d.flags;
fc->user_id = d.user_id;
fc->group_id = d.group_id;
fc->max_read = d.max_read;
#ifdef KERNEL_2_6
if (fc->max_read / PAGE_CACHE_SIZE < fc->bdi.ra_pages)
fc->bdi.ra_pages = fc->max_read / PAGE_CACHE_SIZE;
#endif
err = -ENOMEM;
root = get_root_inode(sb, d.rootmode);
if (root == NULL)
goto err;
sb->s_root = d_alloc_root(root);
if (!sb->s_root) {
iput(root);
goto err;
}
fuse_send_init(fc);
return 0;
err:
spin_lock(&fuse_lock);
fuse_release_conn(fc);
spin_unlock(&fuse_lock);
return err;
}
static void fuse_put_super(struct super_block *sb)
{
struct fuse_conn *fc = sb->u.generic_sbp;
spin_lock(&fuse_lock);
fc->sb = NULL;
fc->uid = 0;
fc->flags = 0;
/* Flush all readers on this fs */
wake_up_all(&fc->waitq);
fuse_release_conn(fc);
sb->u.generic_sbp = NULL;
spin_unlock(&fuse_lock);
}
static void fuse_put_super(struct super_block *sb)
{
struct fuse_conn *fc = get_fuse_conn_super(sb);
down_write(&fc->sbput_sem);
while (!list_empty(&fc->background))
fuse_release_background(list_entry(fc->background.next,
struct fuse_req, bg_entry));
spin_lock(&fuse_lock);
fc->mounted = 0;
fc->user_id = 0;
fc->group_id = 0;
fc->flags = 0;
/* Flush all readers on this fs */
wake_up_all(&fc->waitq);
up_write(&fc->sbput_sem);
fuse_release_conn(fc);
spin_unlock(&fuse_lock);
}
