diff options
| author | Khalid Aziz <[email protected]> | 2018-02-21 10:15:51 -0700 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2018-03-18 07:38:48 -0700 |
| commit | a4602b62d9fdea41412ba765bbf32ecfc2b6a94c (patch) | |
| tree | 252aef98382894012c18032ca17c92a4c1951195 /arch/sparc/kernel/process_64.c | |
| parent | 2c2d57b5e769956fb36581e0d3cccdb5ea68038f (diff) | |
mm: Allow arch code to override copy_highpage()
Some architectures can support metadata for memory pages and when a
page is copied, its metadata must also be copied. Sparc processors
from M7 onwards support metadata for memory pages. This metadata
provides tag based protection for access to memory pages. To maintain
this protection, the tag data must be copied to the new page when a
page is migrated across NUMA nodes. This patch allows arch specific
code to override default copy_highpage() and copy metadata along
with page data upon migration.
Signed-off-by: Khalid Aziz <[email protected]>
Cc: Khalid Aziz <[email protected]>
Reviewed-by: Anthony Yznaga <[email protected]>
Acked-by: Andrew Morton <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'arch/sparc/kernel/process_64.c')
0 files changed, 0 insertions, 0 deletions