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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: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Anton Blanchard 2005-06-21 17:15:55 -07:00 committed by Linus Torvalds
parent ac5b33c9bc
commit 515bae9cdc
1 changed files with 1 additions and 1 deletions
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arch/ppc64/mm/hash_utils.c
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@ -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