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| author | Hugh Dickins <hugh@veritas.com> | 2005-10-29 18:16:39 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-10-29 21:40:42 -0700 |
| commit | b38c6845b695141259019e2b7c0fe6c32a6e720d (patch) | |
| tree | e950aa393f0514e976fe9b46b3462607b016b1db /arch/um | |
| parent | 8f5cd76c185a4c8aeb5fe1e560e3612bfc050c35 (diff) | |
| download | kernel_samsung_crespo-b38c6845b695141259019e2b7c0fe6c32a6e720d.zip kernel_samsung_crespo-b38c6845b695141259019e2b7c0fe6c32a6e720d.tar.gz kernel_samsung_crespo-b38c6845b695141259019e2b7c0fe6c32a6e720d.tar.bz2 | |
[PATCH] mm: uml kill unused
In worrying over the various pte operations in different architectures, I came
across some unused functions in UML: remove mprotect_kernel_vm,
protect_vm_page and addr_pte.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/um')
| -rw-r--r-- | arch/um/include/tlb.h | 1 | ||||
| -rw-r--r-- | arch/um/kernel/tt/tlb.c | 36 |
2 files changed, 0 insertions, 37 deletions
diff --git a/arch/um/include/tlb.h b/arch/um/include/tlb.h index 45d7da6..8efc1e0 100644 --- a/arch/um/include/tlb.h +++ b/arch/um/include/tlb.h @@ -34,7 +34,6 @@ struct host_vm_op { } u; }; -extern void mprotect_kernel_vm(int w); extern void force_flush_all(void); extern void fix_range_common(struct mm_struct *mm, unsigned long start_addr, unsigned long end_addr, int force, diff --git a/arch/um/kernel/tt/tlb.c b/arch/um/kernel/tt/tlb.c index f1d85db..ae6217c 100644 --- a/arch/um/kernel/tt/tlb.c +++ b/arch/um/kernel/tt/tlb.c @@ -74,42 +74,6 @@ void flush_tlb_kernel_range_tt(unsigned long start, unsigned long end) atomic_inc(&vmchange_seq); } -static void protect_vm_page(unsigned long addr, int w, int must_succeed) -{ - int err; - - err = protect_memory(addr, PAGE_SIZE, 1, w, 1, must_succeed); - if(err == 0) return; - else if((err == -EFAULT) || (err == -ENOMEM)){ - flush_tlb_kernel_range(addr, addr + PAGE_SIZE); - protect_vm_page(addr, w, 1); - } - else panic("protect_vm_page : protect failed, errno = %d\n", err); -} - -void mprotect_kernel_vm(int w) -{ - struct mm_struct *mm; - pgd_t *pgd; - pud_t *pud; - pmd_t *pmd; - pte_t *pte; - unsigned long addr; - - mm = &init_mm; - for(addr = start_vm; addr < end_vm;){ - pgd = pgd_offset(mm, addr); - pud = pud_offset(pgd, addr); - pmd = pmd_offset(pud, addr); - if(pmd_present(*pmd)){ - pte = pte_offset_kernel(pmd, addr); - if(pte_present(*pte)) protect_vm_page(addr, w, 0); - addr += PAGE_SIZE; - } - else addr += PMD_SIZE; - } -} - void flush_tlb_kernel_vm_tt(void) { flush_tlb_kernel_range(start_vm, end_vm); |