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powerpc/thp: Don't recompute vsid and ssize in loop on invalidate

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The segment identifier and segment size will remain the same in
the loop, So we can compute it outside. We also change the
hugepage_invalidate interface so that we can use it the later patch

CC: <stable@vger.kernel.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Aneesh Kumar K.V 2014-08-13 12:31:58 +05:30 • committed by Benjamin Herrenschmidt
parent b0aa44a3df
commit fa1f8ae80f
4 changed files with 26 additions and 43 deletions
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6
arch/powerpc/include/asm/machdep.h
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@ -57,10 +57,10 @@ struct machdep_calls {
void (*hpte_removebolted)(unsigned long ea,
int psize, int ssize);
void (*flush_hash_range)(unsigned long number, int local);
void (*hugepage_invalidate)(struct mm_struct *mm,
void (*hugepage_invalidate)(unsigned long vsid,
unsigned long addr,
unsigned char *hpte_slot_array,
unsigned long addr, int psize);
int psize, int ssize);
/* special for kexec, to be called in real mode, linear mapping is
* destroyed as well */
void (*hpte_clear_all)(void);