PIPEFS_MAGIC      901 fs/pipe.c      	bool is_pipe = inode->i_sb->s_magic == PIPEFS_MAGIC;
PIPEFS_MAGIC     1189 fs/pipe.c      	struct pseudo_fs_context *ctx = init_pseudo(fc, PIPEFS_MAGIC);
PIPEFS_MAGIC     3315 security/smack/smack_lsm.c 		case PIPEFS_MAGIC: