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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-10-09 13:51:54 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-10-14 18:04:09 +1100 |
| commit | 34eb138ed74dc95285478903148a53bd034829be (patch) | |
| tree | fe172f00080ffb2e4e9c4da8f9c9ec4c5dbaad9b /arch/powerpc/mm/mem.c | |
| parent | daba790242dfbdf6ef1bcabf3d6ed4c88cccf59a (diff) | |
| download | linux-34eb138ed74dc95285478903148a53bd034829be.tar.gz | |
powerpc/mm: don't use _PAGE_EXEC for calling hash_preload()
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>
Diffstat (limited to 'arch/powerpc/mm/mem.c')
| -rw-r--r-- | arch/powerpc/mm/mem.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index cb421aeb7674f..dd949d6649a26 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -509,7 +509,8 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, * We don't need to worry about _PAGE_PRESENT here because we are * called with either mm->page_table_lock held or ptl lock held */ - unsigned long access, trap; + unsigned long trap; + bool is_exec; if (radix_enabled()) { prefetch((void *)address); @@ -531,16 +532,16 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, trap = current->thread.regs ? TRAP(current->thread.regs) : 0UL; switch (trap) { case 0x300: - access = 0UL; + is_exec = false; break; case 0x400: - access = _PAGE_EXEC; + is_exec = true; break; default: return; } - hash_preload(vma->vm_mm, address, access, trap); + hash_preload(vma->vm_mm, address, is_exec, trap); #endif /* CONFIG_PPC_STD_MMU */ #if (defined(CONFIG_PPC_BOOK3E_64) || defined(CONFIG_PPC_FSL_BOOK3E)) \ && defined(CONFIG_HUGETLB_PAGE) |