| 458,10 → 458,11 |
|---|
| * in its pagemap B+tree. The new address space are simply gets the |
| * sh_info of the source area. |
| * |
| * @param src_as Pointer to source address space |
| * @param src_as Pointer to source address space. |
| * @param src_base Base address of the source address space area. |
| * @param acc_size Expected size of the source area |
| * @param dst_base Target base address |
| * @param acc_size Expected size of the source area. |
| * @param dst_base Target base address. |
| * @param dst_flags_mask Destination address space area flags mask. |
| * |
| * @return Zero on success or ENOENT if there is no such task or |
| * if there is no such address space area, |
| 471,7 → 472,7 |
|---|
| * to share non-anonymous address space area is detected. |
| */ |
| int as_area_share(as_t *src_as, __address src_base, size_t acc_size, |
| __address dst_base) |
| __address dst_base, int dst_flags_mask) |
| { |
| ipl_t ipl; |
| int src_flags; |
| 567,8 → 568,11 |
|---|
| * The destination area is created with AS_AREA_ATTR_PARTIAL |
| * attribute set which prevents race condition with |
| * preliminary as_page_fault() calls. |
| * The flags of the source area are masked against dst_flags_mask |
| * to support sharing in less privileged mode. |
| */ |
| dst_area = as_area_create(AS, src_flags, src_size, dst_base, AS_AREA_ATTR_PARTIAL, &anon_backend, NULL); |
| dst_area = as_area_create(AS, src_flags & dst_flags_mask, src_size, dst_base, |
| AS_AREA_ATTR_PARTIAL, &anon_backend, NULL); |
| if (!dst_area) { |
| /* |
| * Destination address space area could not be created. |