Hi..
As given in include/linux/page-flags.h currently only flag bits 0-19
are used and bits 32-63 are used as field for node information.
so will it be feasible to use any of the unused flagbits from bit 20
to bit 32 for our purpose?
IMHO, if you're sure those bits are really unused, then go ahead and use
them. Checking related page status macros could help you to determine it.
regards,
Mulyadi
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