diff options
| author | Ira Weiny <ira.weiny@intel.com> | 2020-06-04 16:47:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-04 19:06:22 -0700 |
| commit | d8c25836fa16496392bfa6a43908d231dd41bfc6 (patch) | |
| tree | bfd94f7719fa1371f8d0e5196ac3014f6332a327 /arch | |
| parent | db458d73fa35e256bba90b59a6776810800c8bb6 (diff) | |
arch/kmap: don't hard code kmap_prot values
To support kmap_atomic_prot() on all architectures each arch must support
protections passed in to them.
Change csky, mips, nds32 and xtensa to use their global constant kmap_prot
rather than a hard coded value which was equal.
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Christian König <christian.koenig@amd.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Helge Deller <deller@gmx.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20200507150004.1423069-10-ira.weiny@intel.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/csky/mm/highmem.c | 2 | ||||
| -rw-r--r-- | arch/mips/mm/highmem.c | 2 | ||||
| -rw-r--r-- | arch/nds32/mm/highmem.c | 2 | ||||
| -rw-r--r-- | arch/xtensa/mm/highmem.c | 2 |
4 files changed, 4 insertions, 4 deletions
diff --git a/arch/csky/mm/highmem.c b/arch/csky/mm/highmem.c index 0aafbbbe651c..f4311669b5bb 100644 --- a/arch/csky/mm/highmem.c +++ b/arch/csky/mm/highmem.c @@ -32,7 +32,7 @@ void *kmap_atomic_high(struct page *page) #ifdef CONFIG_DEBUG_HIGHMEM BUG_ON(!pte_none(*(kmap_pte - idx))); #endif - set_pte(kmap_pte-idx, mk_pte(page, PAGE_KERNEL)); + set_pte(kmap_pte-idx, mk_pte(page, kmap_prot)); flush_tlb_one((unsigned long)vaddr); return (void *)vaddr; diff --git a/arch/mips/mm/highmem.c b/arch/mips/mm/highmem.c index 73ef4004fe5f..96a486777a18 100644 --- a/arch/mips/mm/highmem.c +++ b/arch/mips/mm/highmem.c @@ -29,7 +29,7 @@ void *kmap_atomic_high(struct page *page) #ifdef CONFIG_DEBUG_HIGHMEM BUG_ON(!pte_none(*(kmap_pte - idx))); #endif - set_pte(kmap_pte-idx, mk_pte(page, PAGE_KERNEL)); + set_pte(kmap_pte-idx, mk_pte(page, kmap_prot)); local_flush_tlb_one((unsigned long)vaddr); return (void*) vaddr; diff --git a/arch/nds32/mm/highmem.c b/arch/nds32/mm/highmem.c index d25c815fda21..b11b88956353 100644 --- a/arch/nds32/mm/highmem.c +++ b/arch/nds32/mm/highmem.c @@ -21,7 +21,7 @@ void *kmap_atomic_high(struct page *page) idx = type + KM_TYPE_NR * smp_processor_id(); vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); - pte = (page_to_pfn(page) << PAGE_SHIFT) | (PAGE_KERNEL); + pte = (page_to_pfn(page) << PAGE_SHIFT) | (kmap_prot); ptep = pte_offset_kernel(pmd_off_k(vaddr), vaddr); set_pte(ptep, pte); diff --git a/arch/xtensa/mm/highmem.c b/arch/xtensa/mm/highmem.c index 4de323e43682..50168b09510a 100644 --- a/arch/xtensa/mm/highmem.c +++ b/arch/xtensa/mm/highmem.c @@ -48,7 +48,7 @@ void *kmap_atomic_high(struct page *page) #ifdef CONFIG_DEBUG_HIGHMEM BUG_ON(!pte_none(*(kmap_pte + idx))); #endif - set_pte(kmap_pte + idx, mk_pte(page, PAGE_KERNEL_EXEC)); + set_pte(kmap_pte + idx, mk_pte(page, kmap_prot)); return (void *)vaddr; } |