5e5419734c
(with Martin Schwidefsky <schwidefsky@de.ibm.com>) The pgd/pud/pmd/pte page table allocation functions get a mm_struct pointer as first argument. The free functions do not get the mm_struct argument. This is 1) asymmetrical and 2) to do mm related page table allocations the mm argument is needed on the free function as well. [kamalesh@linux.vnet.ibm.com: i386 fix] [akpm@linux-foundation.org: coding-syle fixes] Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
37 lines
1 KiB
C
37 lines
1 KiB
C
#ifndef _4LEVEL_FIXUP_H
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#define _4LEVEL_FIXUP_H
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#define __ARCH_HAS_4LEVEL_HACK
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#define __PAGETABLE_PUD_FOLDED
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#define PUD_SIZE PGDIR_SIZE
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#define PUD_MASK PGDIR_MASK
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#define PTRS_PER_PUD 1
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#define pud_t pgd_t
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#define pmd_alloc(mm, pud, address) \
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((unlikely(pgd_none(*(pud))) && __pmd_alloc(mm, pud, address))? \
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NULL: pmd_offset(pud, address))
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#define pud_alloc(mm, pgd, address) (pgd)
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#define pud_offset(pgd, start) (pgd)
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#define pud_none(pud) 0
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#define pud_bad(pud) 0
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#define pud_present(pud) 1
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#define pud_ERROR(pud) do { } while (0)
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#define pud_clear(pud) pgd_clear(pud)
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#define pud_val(pud) pgd_val(pud)
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#define pud_populate(mm, pud, pmd) pgd_populate(mm, pud, pmd)
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#define pud_page(pud) pgd_page(pud)
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#define pud_page_vaddr(pud) pgd_page_vaddr(pud)
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#undef pud_free_tlb
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#define pud_free_tlb(tlb, x) do { } while (0)
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#define pud_free(mm, x) do { } while (0)
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#define __pud_free_tlb(tlb, x) do { } while (0)
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#undef pud_addr_end
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#define pud_addr_end(addr, end) (end)
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#endif
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