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powerpc/mm: don't use _PAGE_EXEC for calling hash_preload()

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The 'access' parameter of hash_preload() is either 0 or _PAGE_EXEC.
Among the two versions of hash_preload(), only the PPC64 one is
doing something with this 'access' parameter.

In order to remove the use of _PAGE_EXEC outside platform code,
'access' parameter is replaced by 'is_exec' which will be either
true of false, and the PPC64 version of hash_preload() creates
the access flag based on 'is_exec'.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christophe Leroy
2018-10-09 13:51:54 +00:00
committed by Michael Ellerman
parent daba790242
commit 34eb138ed7
5 changed files with 10 additions and 8 deletions
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3
arch/powerpc/mm/hash_utils_64.c
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@@ -1482,7 +1482,7 @@ static bool should_hash_preload(struct mm_struct *mm, unsigned long ea)
#endif
void hash_preload(struct mm_struct *mm, unsigned long ea,
unsigned long access, unsigned long trap)
bool is_exec, unsigned long trap)
{
int hugepage_shift;
unsigned long vsid;
@@ -1490,6 +1490,7 @@ void hash_preload(struct mm_struct *mm, unsigned long ea,
pte_t *ptep;
unsigned long flags;
int rc, ssize, update_flags = 0;
unsigned long access = _PAGE_PRESENT | _PAGE_READ | (is_exec ? _PAGE_EXEC : 0);
BUG_ON(REGION_ID(ea) != USER_REGION_ID);