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Commit 515bae9c authored by Anton Blanchard's avatar Anton Blanchard Committed by Linus Torvalds
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[PATCH] ppc64: Mark kernel hptes dirty 



We dont use the hardware referenced and changed bits and setting them early
avoids a store to memory.  We already do this for userspace hptes but not
kernel ones.  Do it.

Signed-off-by: default avatarAnton Blanchard <anton@samba.org>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent ac5b33c9

arch/ppc64/mm/hash_utils.c

+1 −1
Original line number Diff line number Diff line
@@ -195,7 +195,7 @@ void __init htab_initialize(void) 
		memset((void *)table, 0, htab_size_bytes);

	}



	mode_rw = _PAGE_ACCESSED | _PAGE_COHERENT | PP_RWXX;

	mode_rw = _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_COHERENT | PP_RWXX;



	/* On U3 based machines, we need to reserve the DART area and

	 * _NOT_ map it to avoid cache paradoxes as it's remapped non