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authorRalph Campbell <[email protected]>2020-08-06 23:17:09 -0700
committerLinus Torvalds <[email protected]>2020-08-07 11:33:21 -0700
commitc1a06df6ebf6ca98fb7a672fe447c7469d6c1968 (patch)
tree9e3dcff386e50a9d85b4b3ad783bd0599b56730f /include/linux
parentd6efb3ac3e6c19ab722b28bdb9252bae0b9676b6 (diff)
mm/migrate: fix migrate_pgmap_owner w/o CONFIG_MMU_NOTIFIER
On x86_64, when CONFIG_MMU_NOTIFIER is not set/enabled, there is a compiler error: mm/migrate.c: In function 'migrate_vma_collect': mm/migrate.c:2481:7: error: 'struct mmu_notifier_range' has no member named 'migrate_pgmap_owner' range.migrate_pgmap_owner = migrate->pgmap_owner; ^ Fixes: 998427b3ad2c ("mm/notifier: add migration invalidation type") Reported-by: Randy Dunlap <[email protected]> Signed-off-by: Ralph Campbell <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Tested-by: Randy Dunlap <[email protected]> Acked-by: Randy Dunlap <[email protected]> Cc: Jerome Glisse <[email protected]> Cc: John Hubbard <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: "Jason Gunthorpe" <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/mmu_notifier.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h
index c6f0708195cd..b8200782dede 100644
--- a/include/linux/mmu_notifier.h
+++ b/include/linux/mmu_notifier.h
@@ -521,6 +521,16 @@ static inline void mmu_notifier_range_init(struct mmu_notifier_range *range,
range->flags = flags;
}
+static inline void mmu_notifier_range_init_migrate(
+ struct mmu_notifier_range *range, unsigned int flags,
+ struct vm_area_struct *vma, struct mm_struct *mm,
+ unsigned long start, unsigned long end, void *pgmap)
+{
+ mmu_notifier_range_init(range, MMU_NOTIFY_MIGRATE, flags, vma, mm,
+ start, end);
+ range->migrate_pgmap_owner = pgmap;
+}
+
#define ptep_clear_flush_young_notify(__vma, __address, __ptep) \
({ \
int __young; \
@@ -645,6 +655,9 @@ static inline void _mmu_notifier_range_init(struct mmu_notifier_range *range,
#define mmu_notifier_range_init(range,event,flags,vma,mm,start,end) \
_mmu_notifier_range_init(range, start, end)
+#define mmu_notifier_range_init_migrate(range, flags, vma, mm, start, end, \
+ pgmap) \
+ _mmu_notifier_range_init(range, start, end)
static inline bool
mmu_notifier_range_blockable(const struct mmu_notifier_range *range)