client->segments = seg;
}
+/* Originally taken from linux/mm/mmap.c from the array
+ * protection_map.
+ * The original really should be exported to modules, or
+ * some routine which does the conversion for you
+ */
+
+static const pgprot_t my_protect_map[16] =
+{
+ __P000, __P001, __P010, __P011, __P100, __P101, __P110, __P111,
+ __S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111
+};
+
static pgprot_t agp_convert_mmap_flags(int prot)
{
+#define _trans(x,bit1,bit2) \
+((bit1==bit2)?(x&bit1):(x&bit1)?bit2:0)
+
unsigned long prot_bits;
+ pgprot_t temp;
+
+ prot_bits = _trans(prot, PROT_READ, VM_READ) |
+ _trans(prot, PROT_WRITE, VM_WRITE) |
+ _trans(prot, PROT_EXEC, VM_EXEC);
+
+ prot_bits |= VM_SHARED;
- prot_bits = calc_vm_prot_bits(prot) | VM_SHARED;
- return vm_get_page_prot(prot_bits);
+ temp = my_protect_map[prot_bits & 0x0000000f];
+
+ return temp;
}
static int agp_create_segment(struct agp_client *client, struct agp_region *region)
return ret_val;
}
-static const struct file_operations agp_fops =
+static struct file_operations agp_fops =
{
.owner = THIS_MODULE,
.llseek = no_llseek,