SOCKFS_MAGIC
struct pseudo_fs_context *ctx = init_pseudo(fc, SOCKFS_MAGIC);
inode->i_sb->s_magic != SOCKFS_MAGIC)
inode->i_sb->s_magic != SOCKFS_MAGIC &&
if (sbp->s_magic != SOCKFS_MAGIC)
if (inode->i_sb->s_magic == SOCKFS_MAGIC) {
if (inode->i_sb->s_magic != SOCKFS_MAGIC)
case SOCKFS_MAGIC: