TIF_IRET          115 include/asm-frv/thread_info.h #define TIF_IRET		4	/* return with iret */
TIF_IRET          153 include/asm-m32r/thread_info.h #define TIF_IRET		4	/* return with iret */
TIF_IRET           78 include/asm-x86/thread_info.h #define TIF_IRET		5	/* force IRET */
TIF_IRET          133 include/asm-xtensa/thread_info.h #define TIF_IRET		4	/* return with iret */