[PATCH] uml: Whitespace fixes
arch/um/kernel/tlb.c had some pretty serious whitespace problems. I also fixed some returns. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jeff Dike
Linus Torvalds
parent
8f80e9466e
commit
5e1f65a67d
@ -1,4 +1,4 @@
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/*
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/*
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* Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
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* Licensed under the GPL
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*/
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@ -16,12 +16,12 @@
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#include "os.h"
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static int add_mmap(unsigned long virt, unsigned long phys, unsigned long len,
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int r, int w, int x, struct host_vm_op *ops, int *index,
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int r, int w, int x, struct host_vm_op *ops, int *index,
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int last_filled, union mm_context *mmu, void **flush,
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int (*do_ops)(union mm_context *, struct host_vm_op *,
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int, int, void **))
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{
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__u64 offset;
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__u64 offset;
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struct host_vm_op *last;
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int fd, ret = 0;
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@ -89,7 +89,7 @@ static int add_munmap(unsigned long addr, unsigned long len,
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static int add_mprotect(unsigned long addr, unsigned long len, int r, int w,
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int x, struct host_vm_op *ops, int *index,
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int last_filled, union mm_context *mmu, void **flush,
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int (*do_ops)(union mm_context *, struct host_vm_op *,
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int (*do_ops)(union mm_context *, struct host_vm_op *,
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int, int, void **))
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{
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struct host_vm_op *last;
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@ -124,106 +124,105 @@ static int add_mprotect(unsigned long addr, unsigned long len, int r, int w,
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#define ADD_ROUND(n, inc) (((n) + (inc)) & ~((inc) - 1))
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void fix_range_common(struct mm_struct *mm, unsigned long start_addr,
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unsigned long end_addr, int force,
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unsigned long end_addr, int force,
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int (*do_ops)(union mm_context *, struct host_vm_op *,
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int, int, void **))
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{
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pgd_t *npgd;
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pud_t *npud;
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pmd_t *npmd;
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pte_t *npte;
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union mm_context *mmu = &mm->context;
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unsigned long addr, end;
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int r, w, x;
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struct host_vm_op ops[1];
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void *flush = NULL;
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int op_index = -1, last_op = ARRAY_SIZE(ops) - 1;
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int ret = 0;
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pgd_t *npgd;
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pud_t *npud;
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pmd_t *npmd;
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pte_t *npte;
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union mm_context *mmu = &mm->context;
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unsigned long addr, end;
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int r, w, x;
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struct host_vm_op ops[1];
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void *flush = NULL;
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int op_index = -1, last_op = ARRAY_SIZE(ops) - 1;
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int ret = 0;
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if(mm == NULL)
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if(mm == NULL)
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return;
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ops[0].type = NONE;
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for(addr = start_addr; addr < end_addr && !ret;){
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npgd = pgd_offset(mm, addr);
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if(!pgd_present(*npgd)){
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end = ADD_ROUND(addr, PGDIR_SIZE);
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if(end > end_addr)
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end = end_addr;
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if(force || pgd_newpage(*npgd)){
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ret = add_munmap(addr, end - addr, ops,
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&op_index, last_op, mmu,
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&flush, do_ops);
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pgd_mkuptodate(*npgd);
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}
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addr = end;
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continue;
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}
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ops[0].type = NONE;
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for(addr = start_addr; addr < end_addr && !ret;){
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npgd = pgd_offset(mm, addr);
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if(!pgd_present(*npgd)){
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end = ADD_ROUND(addr, PGDIR_SIZE);
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if(end > end_addr)
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end = end_addr;
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if(force || pgd_newpage(*npgd)){
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ret = add_munmap(addr, end - addr, ops,
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&op_index, last_op, mmu,
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&flush, do_ops);
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pgd_mkuptodate(*npgd);
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}
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addr = end;
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continue;
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}
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npud = pud_offset(npgd, addr);
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if(!pud_present(*npud)){
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end = ADD_ROUND(addr, PUD_SIZE);
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if(end > end_addr)
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end = end_addr;
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if(force || pud_newpage(*npud)){
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ret = add_munmap(addr, end - addr, ops,
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&op_index, last_op, mmu,
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&flush, do_ops);
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pud_mkuptodate(*npud);
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}
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addr = end;
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continue;
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}
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npud = pud_offset(npgd, addr);
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if(!pud_present(*npud)){
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end = ADD_ROUND(addr, PUD_SIZE);
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if(end > end_addr)
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end = end_addr;
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if(force || pud_newpage(*npud)){
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ret = add_munmap(addr, end - addr, ops,
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&op_index, last_op, mmu,
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&flush, do_ops);
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pud_mkuptodate(*npud);
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}
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addr = end;
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continue;
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}
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npmd = pmd_offset(npud, addr);
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if(!pmd_present(*npmd)){
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end = ADD_ROUND(addr, PMD_SIZE);
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if(end > end_addr)
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end = end_addr;
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if(force || pmd_newpage(*npmd)){
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ret = add_munmap(addr, end - addr, ops,
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&op_index, last_op, mmu,
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&flush, do_ops);
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pmd_mkuptodate(*npmd);
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}
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addr = end;
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continue;
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}
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npmd = pmd_offset(npud, addr);
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if(!pmd_present(*npmd)){
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end = ADD_ROUND(addr, PMD_SIZE);
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if(end > end_addr)
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end = end_addr;
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if(force || pmd_newpage(*npmd)){
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ret = add_munmap(addr, end - addr, ops,
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&op_index, last_op, mmu,
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&flush, do_ops);
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pmd_mkuptodate(*npmd);
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}
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addr = end;
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continue;
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}
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npte = pte_offset_kernel(npmd, addr);
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r = pte_read(*npte);
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w = pte_write(*npte);
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x = pte_exec(*npte);
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npte = pte_offset_kernel(npmd, addr);
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r = pte_read(*npte);
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w = pte_write(*npte);
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x = pte_exec(*npte);
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if (!pte_young(*npte)) {
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r = 0;
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w = 0;
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} else if (!pte_dirty(*npte)) {
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w = 0;
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}
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if(force || pte_newpage(*npte)){
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if(pte_present(*npte))
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ret = add_mmap(addr,
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pte_val(*npte) & PAGE_MASK,
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PAGE_SIZE, r, w, x, ops,
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&op_index, last_op, mmu,
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&flush, do_ops);
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if(force || pte_newpage(*npte)){
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if(pte_present(*npte))
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ret = add_mmap(addr,
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pte_val(*npte) & PAGE_MASK,
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PAGE_SIZE, r, w, x, ops,
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&op_index, last_op, mmu,
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&flush, do_ops);
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else ret = add_munmap(addr, PAGE_SIZE, ops,
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&op_index, last_op, mmu,
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&flush, do_ops);
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}
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else if(pte_newprot(*npte))
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}
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else if(pte_newprot(*npte))
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ret = add_mprotect(addr, PAGE_SIZE, r, w, x, ops,
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&op_index, last_op, mmu,
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&flush, do_ops);
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*npte = pte_mkuptodate(*npte);
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addr += PAGE_SIZE;
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}
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*npte = pte_mkuptodate(*npte);
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addr += PAGE_SIZE;
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}
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if(!ret)
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ret = (*do_ops)(mmu, ops, op_index, 1, &flush);
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/* This is not an else because ret is modified above */
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/* This is not an else because ret is modified above */
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if(ret) {
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printk("fix_range_common: failed, killing current process\n");
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force_sig(SIGKILL, current);
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@ -232,160 +231,160 @@ void fix_range_common(struct mm_struct *mm, unsigned long start_addr,
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int flush_tlb_kernel_range_common(unsigned long start, unsigned long end)
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{
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struct mm_struct *mm;
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pgd_t *pgd;
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pud_t *pud;
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pmd_t *pmd;
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pte_t *pte;
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unsigned long addr, last;
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int updated = 0, err;
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struct mm_struct *mm;
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pgd_t *pgd;
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pud_t *pud;
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pmd_t *pmd;
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pte_t *pte;
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unsigned long addr, last;
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int updated = 0, err;
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mm = &init_mm;
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for(addr = start; addr < end;){
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pgd = pgd_offset(mm, addr);
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if(!pgd_present(*pgd)){
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last = ADD_ROUND(addr, PGDIR_SIZE);
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if(last > end)
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last = end;
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if(pgd_newpage(*pgd)){
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updated = 1;
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err = os_unmap_memory((void *) addr,
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last - addr);
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if(err < 0)
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panic("munmap failed, errno = %d\n",
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-err);
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}
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addr = last;
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continue;
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}
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mm = &init_mm;
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for(addr = start; addr < end;){
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pgd = pgd_offset(mm, addr);
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if(!pgd_present(*pgd)){
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last = ADD_ROUND(addr, PGDIR_SIZE);
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if(last > end)
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last = end;
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if(pgd_newpage(*pgd)){
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updated = 1;
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err = os_unmap_memory((void *) addr,
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last - addr);
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if(err < 0)
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panic("munmap failed, errno = %d\n",
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-err);
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}
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addr = last;
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continue;
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}
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pud = pud_offset(pgd, addr);
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if(!pud_present(*pud)){
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last = ADD_ROUND(addr, PUD_SIZE);
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if(last > end)
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last = end;
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if(pud_newpage(*pud)){
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updated = 1;
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err = os_unmap_memory((void *) addr,
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last - addr);
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if(err < 0)
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panic("munmap failed, errno = %d\n",
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-err);
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}
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addr = last;
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continue;
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}
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pud = pud_offset(pgd, addr);
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if(!pud_present(*pud)){
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last = ADD_ROUND(addr, PUD_SIZE);
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if(last > end)
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last = end;
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if(pud_newpage(*pud)){
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updated = 1;
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err = os_unmap_memory((void *) addr,
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last - addr);
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if(err < 0)
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panic("munmap failed, errno = %d\n",
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-err);
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}
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addr = last;
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continue;
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}
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pmd = pmd_offset(pud, addr);
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if(!pmd_present(*pmd)){
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last = ADD_ROUND(addr, PMD_SIZE);
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if(last > end)
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last = end;
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if(pmd_newpage(*pmd)){
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updated = 1;
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err = os_unmap_memory((void *) addr,
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last - addr);
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if(err < 0)
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panic("munmap failed, errno = %d\n",
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-err);
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}
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addr = last;
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continue;
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}
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pmd = pmd_offset(pud, addr);
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if(!pmd_present(*pmd)){
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last = ADD_ROUND(addr, PMD_SIZE);
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if(last > end)
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last = end;
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if(pmd_newpage(*pmd)){
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updated = 1;
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err = os_unmap_memory((void *) addr,
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last - addr);
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if(err < 0)
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panic("munmap failed, errno = %d\n",
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-err);
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}
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addr = last;
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continue;
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}
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pte = pte_offset_kernel(pmd, addr);
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if(!pte_present(*pte) || pte_newpage(*pte)){
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updated = 1;
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err = os_unmap_memory((void *) addr,
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PAGE_SIZE);
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if(err < 0)
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panic("munmap failed, errno = %d\n",
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-err);
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if(pte_present(*pte))
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map_memory(addr,
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pte_val(*pte) & PAGE_MASK,
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PAGE_SIZE, 1, 1, 1);
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}
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else if(pte_newprot(*pte)){
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updated = 1;
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os_protect_memory((void *) addr, PAGE_SIZE, 1, 1, 1);
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}
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addr += PAGE_SIZE;
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}
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return(updated);
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pte = pte_offset_kernel(pmd, addr);
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if(!pte_present(*pte) || pte_newpage(*pte)){
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updated = 1;
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err = os_unmap_memory((void *) addr,
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PAGE_SIZE);
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if(err < 0)
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panic("munmap failed, errno = %d\n",
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-err);
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if(pte_present(*pte))
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map_memory(addr,
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pte_val(*pte) & PAGE_MASK,
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PAGE_SIZE, 1, 1, 1);
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}
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else if(pte_newprot(*pte)){
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updated = 1;
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os_protect_memory((void *) addr, PAGE_SIZE, 1, 1, 1);
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}
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addr += PAGE_SIZE;
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}
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return(updated);
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}
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pgd_t *pgd_offset_proc(struct mm_struct *mm, unsigned long address)
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{
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return(pgd_offset(mm, address));
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return(pgd_offset(mm, address));
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}
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pud_t *pud_offset_proc(pgd_t *pgd, unsigned long address)
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{
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return(pud_offset(pgd, address));
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return(pud_offset(pgd, address));
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}
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pmd_t *pmd_offset_proc(pud_t *pud, unsigned long address)
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{
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return(pmd_offset(pud, address));
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return(pmd_offset(pud, address));
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}
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pte_t *pte_offset_proc(pmd_t *pmd, unsigned long address)
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{
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return(pte_offset_kernel(pmd, address));
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return(pte_offset_kernel(pmd, address));
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}
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pte_t *addr_pte(struct task_struct *task, unsigned long addr)
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{
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pgd_t *pgd = pgd_offset(task->mm, addr);
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pud_t *pud = pud_offset(pgd, addr);
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pmd_t *pmd = pmd_offset(pud, addr);
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pgd_t *pgd = pgd_offset(task->mm, addr);
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pud_t *pud = pud_offset(pgd, addr);
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pmd_t *pmd = pmd_offset(pud, addr);
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return(pte_offset_map(pmd, addr));
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return(pte_offset_map(pmd, addr));
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}
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void flush_tlb_page(struct vm_area_struct *vma, unsigned long address)
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{
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address &= PAGE_MASK;
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flush_tlb_range(vma, address, address + PAGE_SIZE);
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address &= PAGE_MASK;
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flush_tlb_range(vma, address, address + PAGE_SIZE);
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}
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void flush_tlb_all(void)
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{
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flush_tlb_mm(current->mm);
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flush_tlb_mm(current->mm);
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}
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void flush_tlb_kernel_range(unsigned long start, unsigned long end)
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{
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CHOOSE_MODE_PROC(flush_tlb_kernel_range_tt,
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flush_tlb_kernel_range_common, start, end);
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CHOOSE_MODE_PROC(flush_tlb_kernel_range_tt,
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flush_tlb_kernel_range_common, start, end);
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}
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void flush_tlb_kernel_vm(void)
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{
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CHOOSE_MODE(flush_tlb_kernel_vm_tt(),
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flush_tlb_kernel_range_common(start_vm, end_vm));
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CHOOSE_MODE(flush_tlb_kernel_vm_tt(),
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flush_tlb_kernel_range_common(start_vm, end_vm));
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}
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void __flush_tlb_one(unsigned long addr)
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{
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CHOOSE_MODE_PROC(__flush_tlb_one_tt, __flush_tlb_one_skas, addr);
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CHOOSE_MODE_PROC(__flush_tlb_one_tt, __flush_tlb_one_skas, addr);
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}
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void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
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unsigned long end)
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{
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CHOOSE_MODE_PROC(flush_tlb_range_tt, flush_tlb_range_skas, vma, start,
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end);
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CHOOSE_MODE_PROC(flush_tlb_range_tt, flush_tlb_range_skas, vma, start,
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end);
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}
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void flush_tlb_mm(struct mm_struct *mm)
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{
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CHOOSE_MODE_PROC(flush_tlb_mm_tt, flush_tlb_mm_skas, mm);
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CHOOSE_MODE_PROC(flush_tlb_mm_tt, flush_tlb_mm_skas, mm);
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}
|
||||
|
||||
void force_flush_all(void)
|
||||
{
|
||||
CHOOSE_MODE(force_flush_all_tt(), force_flush_all_skas());
|
||||
CHOOSE_MODE(force_flush_all_tt(), force_flush_all_skas());
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user