cg <chengang31@xxxxxxxxx> writes: > I saw some code like: > attr.c(365): if (ce_stage(istate->cache[i]) == 2) > ... > rerere.c(352): if (ce_stage(e2) == 2 > ... > > but there is no 0x200 in cache.h(158): > #define CE_NAMEMASK (0x0fff) > #define CE_STAGEMASK (0x3000) > #define CE_EXTENDED (0x4000) > #define CE_VALID (0x8000) > #define CE_STAGESHIFT 12 > > so what does "2" mean? #define ce_stage(ce) ((CE_STAGEMASK & (ce)->ce_flags) >> CE_STAGESHIFT) 0x3000 shifted 12 places is a mask for two bits, as you can have cache entries at stage 0 (normal), or stage 1/2/3. -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html