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Subject[PATCH 05/13] IB/umem: update to new mmu_notifier semantic
Date
From: Jérôme Glisse <jglisse@redhat.com>

Call to mmu_notifier_invalidate_page() are replaced by call to
mmu_notifier_invalidate_range() and thus call are bracketed by
call to mmu_notifier_invalidate_range_start()/end()

Remove now useless invalidate_page callback.

Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Tested-by: Leon Romanovsky <leonro@mellanox.com>
Cc: linux-rdma@vger.kernel.org
Cc: Artemy Kovalyov <artemyko@mellanox.com>
Cc: Doug Ledford <dledford@redhat.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
---
drivers/infiniband/core/umem_odp.c | 19 -------------------
1 file changed, 19 deletions(-)

diff --git a/drivers/infiniband/core/umem_odp.c b/drivers/infiniband/core/umem_odp.c
index 8c4ec564e495..55e8f5ed8b3c 100644
--- a/drivers/infiniband/core/umem_odp.c
+++ b/drivers/infiniband/core/umem_odp.c
@@ -166,24 +166,6 @@ static int invalidate_page_trampoline(struct ib_umem *item, u64 start,
return 0;
}

-static void ib_umem_notifier_invalidate_page(struct mmu_notifier *mn,
- struct mm_struct *mm,
- unsigned long address)
-{
- struct ib_ucontext *context = container_of(mn, struct ib_ucontext, mn);
-
- if (!context->invalidate_range)
- return;
-
- ib_ucontext_notifier_start_account(context);
- down_read(&context->umem_rwsem);
- rbt_ib_umem_for_each_in_range(&context->umem_tree, address,
- address + PAGE_SIZE,
- invalidate_page_trampoline, NULL);
- up_read(&context->umem_rwsem);
- ib_ucontext_notifier_end_account(context);
-}
-
static int invalidate_range_start_trampoline(struct ib_umem *item, u64 start,
u64 end, void *cookie)
{
@@ -237,7 +219,6 @@ static void ib_umem_notifier_invalidate_range_end(struct mmu_notifier *mn,

static const struct mmu_notifier_ops ib_umem_notifiers = {
.release = ib_umem_notifier_release,
- .invalidate_page = ib_umem_notifier_invalidate_page,
.invalidate_range_start = ib_umem_notifier_invalidate_range_start,
.invalidate_range_end = ib_umem_notifier_invalidate_range_end,
};
--
2.13.5
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