diff options
| author | Kefeng Wang <wangkefeng.wang@huawei.com> | 2021-06-30 18:49:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-06-30 20:47:28 -0700 |
| commit | 781eb2cdd26f3748be57da9bed98bbe5b0dd99fb (patch) | |
| tree | c5bdc5356a91110333fed7339a3d477d583bb0da /mm | |
| parent | 3ebc57f40316049139ab9ca3d19e52449106ee9f (diff) | |
mm/kconfig: move HOLES_IN_ZONE into mm
commit a55749639dc1 ("ia64: drop marked broken DISCONTIGMEM and
VIRTUAL_MEM_MAP") drop VIRTUAL_MEM_MAP, so there is no need HOLES_IN_ZONE
on ia64.
Also move HOLES_IN_ZONE into mm/Kconfig, select it if architecture needs
this feature.
Link: https://lkml.kernel.org/r/20210417075946.181402-1-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com> [arm64]
Cc: Will Deacon <will@kernel.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/Kconfig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/Kconfig b/mm/Kconfig index ded98fb859ab..055639e52459 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -96,6 +96,9 @@ config HAVE_FAST_GUP depends on MMU bool +config HOLES_IN_ZONE + bool + # Don't discard allocated memory used to track "memory" and "reserved" memblocks # after early boot, so it can still be used to test for validity of memory. # Also, memblocks are updated with memory hot(un)plug. |