diff options
| author | Jérôme Glisse <jglisse@redhat.com> | 2018-12-28 00:38:09 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-12-28 12:11:50 -0800 |
| commit | ac46d4f3c43241ffa23d5bf36153a0830c0e02cc (patch) | |
| tree | 8fb9505fd38170afe5c9ba8ff0ed54bbe6caaf4d /mm/mprotect.c | |
| parent | 5d6527a784f7a6d247961e046e830de8d71b47d1 (diff) | |
mm/mmu_notifier: use structure for invalidate_range_start/end calls v2
To avoid having to change many call sites everytime we want to add a
parameter use a structure to group all parameters for the mmu_notifier
invalidate_range_start/end cakks. No functional changes with this patch.
[akpm@linux-foundation.org: coding style fixes]
Link: http://lkml.kernel.org/r/20181205053628.3210-3-jglisse@redhat.com
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Jan Kara <jack@suse.cz>
Cc: Matthew Wilcox <mawilcox@microsoft.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: Felix Kuehling <felix.kuehling@amd.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
From: Jérôme Glisse <jglisse@redhat.com>
Subject: mm/mmu_notifier: use structure for invalidate_range_start/end calls v3
fix build warning in migrate.c when CONFIG_MMU_NOTIFIER=n
Link: http://lkml.kernel.org/r/20181213171330.8489-3-jglisse@redhat.com
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mprotect.c')
| -rw-r--r-- | mm/mprotect.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/mm/mprotect.c b/mm/mprotect.c index 6d331620b9e5..36cb358db170 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -167,11 +167,12 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma, pgprot_t newprot, int dirty_accountable, int prot_numa) { pmd_t *pmd; - struct mm_struct *mm = vma->vm_mm; unsigned long next; unsigned long pages = 0; unsigned long nr_huge_updates = 0; - unsigned long mni_start = 0; + struct mmu_notifier_range range; + + range.start = 0; pmd = pmd_offset(pud, addr); do { @@ -183,9 +184,9 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma, goto next; /* invoke the mmu notifier if the pmd is populated */ - if (!mni_start) { - mni_start = addr; - mmu_notifier_invalidate_range_start(mm, mni_start, end); + if (!range.start) { + mmu_notifier_range_init(&range, vma->vm_mm, addr, end); + mmu_notifier_invalidate_range_start(&range); } if (is_swap_pmd(*pmd) || pmd_trans_huge(*pmd) || pmd_devmap(*pmd)) { @@ -214,8 +215,8 @@ next: cond_resched(); } while (pmd++, addr = next, addr != end); - if (mni_start) - mmu_notifier_invalidate_range_end(mm, mni_start, end); + if (range.start) + mmu_notifier_invalidate_range_end(&range); if (nr_huge_updates) count_vm_numa_events(NUMA_HUGE_PTE_UPDATES, nr_huge_updates); |