x86/mm: Untangle __change_page_attr_set_clr(.checkalias)

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The .checkalias argument to __change_page_attr_set_clr() is overloaded
and serves two different purposes:

 - it inhibits the call to cpa_process_alias() -- as suggested by the
   name; however,

 - it also serves as 'primary' indicator for __change_page_attr()
   ( which in turn also serves as a recursion terminator for
     cpa_process_alias() ).

Untangle these by extending the use of CPA_NO_CHECK_ALIAS to all
callsites that currently use .checkalias=0 for this purpose.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20221110125544.527267183%40infradead.org

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Peter Zijlstra 2022-11-10 13:33:54 +01:00 • committed by Dave Hansen

parent 5ceeee7571

commit ef9ab81af6

1 changed files with 11 additions and 19 deletions

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arch/x86/mm/pat/set_memory.c

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