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| author | Alistair Popple <apopple@nvidia.com> | 2023-01-10 13:57:22 +1100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-02-02 22:32:54 -0800 |
| commit | 7d4a8be0c4b2b7ffb367929d2b352651f083806b (patch) | |
| tree | 5212561efdf216643df182e27610050c678b515f /include | |
| parent | 9e5522715e6941bcfdc08d066a79d6da0f8cec8e (diff) | |
| download | lwn-7d4a8be0c4b2b7ffb367929d2b352651f083806b.tar.gz lwn-7d4a8be0c4b2b7ffb367929d2b352651f083806b.zip | |
mm/mmu_notifier: remove unused mmu_notifier_range_update_to_read_only export
mmu_notifier_range_update_to_read_only() was originally introduced in
commit c6d23413f81b ("mm/mmu_notifier:
mmu_notifier_range_update_to_read_only() helper") as an optimisation for
device drivers that know a range has only been mapped read-only. However
there are no users of this feature so remove it. As it is the only user
of the struct mmu_notifier_range.vma field remove that also.
Link: https://lkml.kernel.org/r/20230110025722.600912-1-apopple@nvidia.com
Signed-off-by: Alistair Popple <apopple@nvidia.com>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mmu_notifier.h | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h index d6c06e140277..64a3e051c3c4 100644 --- a/include/linux/mmu_notifier.h +++ b/include/linux/mmu_notifier.h @@ -269,7 +269,6 @@ extern struct lockdep_map __mmu_notifier_invalidate_range_start_map; #endif struct mmu_notifier_range { - struct vm_area_struct *vma; struct mm_struct *mm; unsigned long start; unsigned long end; @@ -514,12 +513,10 @@ static inline void mmu_notifier_subscriptions_destroy(struct mm_struct *mm) static inline void mmu_notifier_range_init(struct mmu_notifier_range *range, enum mmu_notifier_event event, unsigned flags, - struct vm_area_struct *vma, struct mm_struct *mm, unsigned long start, unsigned long end) { - range->vma = vma; range->event = event; range->mm = mm; range->start = start; @@ -530,10 +527,10 @@ static inline void mmu_notifier_range_init(struct mmu_notifier_range *range, static inline void mmu_notifier_range_init_owner( struct mmu_notifier_range *range, enum mmu_notifier_event event, unsigned int flags, - struct vm_area_struct *vma, struct mm_struct *mm, - unsigned long start, unsigned long end, void *owner) + struct mm_struct *mm, unsigned long start, + unsigned long end, void *owner) { - mmu_notifier_range_init(range, event, flags, vma, mm, start, end); + mmu_notifier_range_init(range, event, flags, mm, start, end); range->owner = owner; } @@ -659,9 +656,9 @@ static inline void _mmu_notifier_range_init(struct mmu_notifier_range *range, range->end = end; } -#define mmu_notifier_range_init(range,event,flags,vma,mm,start,end) \ +#define mmu_notifier_range_init(range,event,flags,mm,start,end) \ _mmu_notifier_range_init(range, start, end) -#define mmu_notifier_range_init_owner(range, event, flags, vma, mm, start, \ +#define mmu_notifier_range_init_owner(range, event, flags, mm, start, \ end, owner) \ _mmu_notifier_range_init(range, start, end) |