diff options
| author | Jérôme Glisse <jglisse@redhat.com> | 2019-05-13 17:20:42 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-14 09:47:49 -0700 |
| commit | 27560ee96f40017075bcb975b85f85dae3622f01 (patch) | |
| tree | 955af572e6345d49899988b18c82808791a34f25 | |
| parent | dfcd66604c1c116ffc7a94375becbed1d7ecbef1 (diff) | |
mm/mmu_notifier: convert mmu_notifier_range->blockable to a flags
Use an unsigned field for flags other than blockable and convert the
blockable field to be one of those flags.
Link: http://lkml.kernel.org/r/20190326164747.24405-4-jglisse@redhat.com
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: Ralph Campbell <rcampbell@nvidia.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: Ross Zwisler <zwisler@kernel.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krcmar <rkrcmar@redhat.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Christian Koenig <christian.koenig@amd.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | include/linux/mmu_notifier.h | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h index e630def131ce..c8672c366f67 100644 --- a/include/linux/mmu_notifier.h +++ b/include/linux/mmu_notifier.h @@ -25,11 +25,13 @@ struct mmu_notifier_mm { spinlock_t lock; }; +#define MMU_NOTIFIER_RANGE_BLOCKABLE (1 << 0) + struct mmu_notifier_range { struct mm_struct *mm; unsigned long start; unsigned long end; - bool blockable; + unsigned flags; }; struct mmu_notifier_ops { @@ -229,7 +231,7 @@ extern void __mmu_notifier_invalidate_range(struct mm_struct *mm, static inline bool mmu_notifier_range_blockable(const struct mmu_notifier_range *range) { - return range->blockable; + return (range->flags & MMU_NOTIFIER_RANGE_BLOCKABLE); } static inline void mmu_notifier_release(struct mm_struct *mm) @@ -275,7 +277,7 @@ static inline void mmu_notifier_invalidate_range_start(struct mmu_notifier_range *range) { if (mm_has_notifiers(range->mm)) { - range->blockable = true; + range->flags |= MMU_NOTIFIER_RANGE_BLOCKABLE; __mmu_notifier_invalidate_range_start(range); } } @@ -284,7 +286,7 @@ static inline int mmu_notifier_invalidate_range_start_nonblock(struct mmu_notifier_range *range) { if (mm_has_notifiers(range->mm)) { - range->blockable = false; + range->flags &= ~MMU_NOTIFIER_RANGE_BLOCKABLE; return __mmu_notifier_invalidate_range_start(range); } return 0; @@ -331,6 +333,7 @@ static inline void mmu_notifier_range_init(struct mmu_notifier_range *range, range->mm = mm; range->start = start; range->end = end; + range->flags = 0; } #define ptep_clear_flush_young_notify(__vma, __address, __ptep) \ |