| commit | 7d97277b754d3ee098a5ec69b6aaafb00c94e2f2 | |
| author | Yinghai Lu <yhlu.kernel@gmail.com> | |
| Sat, 7 Feb 2009 23:39:41 +0000 (7 15:39 -0800) | ||
| committer | Ingo Molnar <mingo@elte.hu> | |
| Mon, 9 Feb 2009 12:35:07 +0000 (9 13:35 +0100) | ||
| tree | 457ff6256a2da2f39f93500453a6a643ab29ef2b | treesnapshot (tar.gz zip) |
| parent | 05876f88ed9a66b26af613e222795ae790616252 | commitdiff |
acpi/x86: introduce __apci_map_table, v4
to prevent wrongly overwriting fixmap that still want to use.
ACPI used to rely on low mappings being all linearly mapped and
grew a habit: it never really unmapped certain kinds of tables
after use.
This can cause problems - for example the hypothetical case
when some spurious access still references it.
v2: remove prev_map and prev_size in __apci_map_table
v3: let acpi_os_unmap_memory() call early_iounmap too, so remove extral calling to
early_acpi_os_unmap_memory
v4: fix typo in one acpi_get_table_with_size calling
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Acked-by: Len Brown <len.brown@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
to prevent wrongly overwriting fixmap that still want to use.
ACPI used to rely on low mappings being all linearly mapped and
grew a habit: it never really unmapped certain kinds of tables
after use.
This can cause problems - for example the hypothetical case
when some spurious access still references it.
v2: remove prev_map and prev_size in __apci_map_table
v3: let acpi_os_unmap_memory() call early_iounmap too, so remove extral calling to
early_acpi_os_unmap_memory
v4: fix typo in one acpi_get_table_with_size calling
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Acked-by: Len Brown <len.brown@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>