diff options
Diffstat (limited to 'include/linux/pageblock-flags.h')
| -rw-r--r-- | include/linux/pageblock-flags.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/pageblock-flags.h b/include/linux/pageblock-flags.h index c240c7a1fb03..6a44be0f39f4 100644 --- a/include/linux/pageblock-flags.h +++ b/include/linux/pageblock-flags.h @@ -21,6 +21,13 @@ enum pageblock_bits { /* 3 bits required for migrate types */ PB_compact_skip,/* If set the block is skipped by compaction */ +#ifdef CONFIG_MEMORY_ISOLATION + /* + * Pageblock isolation is represented with a separate bit, so that + * the migratetype of a block is not overwritten by isolation. + */ + PB_migrate_isolate, /* If set the block is isolated */ +#endif /* * Assume the bits will always align on a word. If this assumption * changes then get/set pageblock needs updating. @@ -32,6 +39,13 @@ enum pageblock_bits { #define MIGRATETYPE_MASK ((1UL << (PB_migrate_end + 1)) - 1) +#ifdef CONFIG_MEMORY_ISOLATION +#define MIGRATETYPE_AND_ISO_MASK \ + (((1UL << (PB_migrate_end + 1)) - 1) | BIT(PB_migrate_isolate)) +#else +#define MIGRATETYPE_AND_ISO_MASK MIGRATETYPE_MASK +#endif + #if defined(CONFIG_HUGETLB_PAGE) #ifdef CONFIG_HUGETLB_PAGE_SIZE_VARIABLE |