__S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111
};
+#ifndef CONFIG_ARCH_HAS_FILTER_PGPROT
+static inline pgprot_t arch_filter_pgprot(pgprot_t prot)
+{
+ return prot;
+}
+#endif
+
pgprot_t vm_get_page_prot(unsigned long vm_flags)
{
- return __pgprot(pgprot_val(protection_map[vm_flags &
+ pgprot_t ret = __pgprot(pgprot_val(protection_map[vm_flags &
(VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]) |
pgprot_val(arch_vm_get_page_prot(vm_flags)));
+
+ return arch_filter_pgprot(ret);
}
EXPORT_SYMBOL(vm_get_page_prot);
if (!(file && path_noexec(&file->f_path)))
prot |= PROT_EXEC;
+ /* force arch specific MAP_FIXED handling in get_unmapped_area */
+ if (flags & MAP_FIXED_NOREPLACE)
+ flags |= MAP_FIXED;
+
if (!(flags & MAP_FIXED))
addr = round_hint_to_min(addr);
if (offset_in_page(addr))
return addr;
+ if (flags & MAP_FIXED_NOREPLACE) {
+ struct vm_area_struct *vma = find_vma(mm, addr);
+
+ if (vma && vma->vm_start <= addr)
+ return -EEXIST;
+ }
+
if (prot == PROT_EXEC) {
pkey = execute_only_pkey(mm);
if (pkey < 0)
if (rlimit(RLIMIT_DATA) == 0 &&
mm->data_vm + npages <= rlimit_max(RLIMIT_DATA) >> PAGE_SHIFT)
return true;
- if (!ignore_rlimit_data) {
- pr_warn_once("%s (%d): VmData %lu exceed data ulimit %lu. Update limits or use boot option ignore_rlimit_data.\n",
- current->comm, current->pid,
- (mm->data_vm + npages) << PAGE_SHIFT,
- rlimit(RLIMIT_DATA));
+
+ pr_warn_once("%s (%d): VmData %lu exceed data ulimit %lu. Update limits%s.\n",
+ current->comm, current->pid,
+ (mm->data_vm + npages) << PAGE_SHIFT,
+ rlimit(RLIMIT_DATA),
+ ignore_rlimit_data ? "" : " or use boot option ignore_rlimit_data");
+
+ if (!ignore_rlimit_data)
return false;
- }
}
return true;