lkml.org 
[lkml]   [2018]   [Dec]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/3] mm/mmu_notifier: use structure for invalidate_range_start/end callback
Date
From: Jérôme Glisse <jglisse@redhat.com>

To avoid having to change many callback definition everytime we want
to add a parameter use a structure to group all parameters for the
mmu_notifier invalidate_range_start/end callback. No functional changes
with this patch.

Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Ross Zwisler <zwisler@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Christian Koenig <christian.koenig@amd.com>
Cc: Felix Kuehling <felix.kuehling@amd.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: kvm@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-rdma@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
---
drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c | 43 +++++++++++--------------
drivers/gpu/drm/i915/i915_gem_userptr.c | 14 ++++----
drivers/gpu/drm/radeon/radeon_mn.c | 16 ++++-----
drivers/infiniband/core/umem_odp.c | 20 +++++-------
drivers/infiniband/hw/hfi1/mmu_rb.c | 13 +++-----
drivers/misc/mic/scif/scif_dma.c | 11 ++-----
drivers/misc/sgi-gru/grutlbpurge.c | 14 ++++----
drivers/xen/gntdev.c | 12 +++----
include/linux/mmu_notifier.h | 14 +++++---
mm/hmm.c | 23 ++++++-------
mm/mmu_notifier.c | 21 ++++++++++--
virt/kvm/kvm_main.c | 14 +++-----
12 files changed, 102 insertions(+), 113 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
index e55508b39496..5bc7e59a05a1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
@@ -246,36 +246,34 @@ static void amdgpu_mn_invalidate_node(struct amdgpu_mn_node *node,
* potentially dirty.
*/
static int amdgpu_mn_invalidate_range_start_gfx(struct mmu_notifier *mn,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end,
- bool blockable)
+ const struct mmu_notifier_range *range)
{
struct amdgpu_mn *amn = container_of(mn, struct amdgpu_mn, mn);
struct interval_tree_node *it;
+ unsigned long end;

/* notification is exclusive, but interval is inclusive */
- end -= 1;
+ end = range->end - 1;

/* TODO we should be able to split locking for interval tree and
* amdgpu_mn_invalidate_node
*/
- if (amdgpu_mn_read_lock(amn, blockable))
+ if (amdgpu_mn_read_lock(amn, range->blockable))
return -EAGAIN;

- it = interval_tree_iter_first(&amn->objects, start, end);
+ it = interval_tree_iter_first(&amn->objects, range->start, end);
while (it) {
struct amdgpu_mn_node *node;

- if (!blockable) {
+ if (!range->blockable) {
amdgpu_mn_read_unlock(amn);
return -EAGAIN;
}

node = container_of(it, struct amdgpu_mn_node, it);
- it = interval_tree_iter_next(it, start, end);
+ it = interval_tree_iter_next(it, range->start, end);

- amdgpu_mn_invalidate_node(node, start, end);
+ amdgpu_mn_invalidate_node(node, range->start, end);
}

return 0;
@@ -294,39 +292,38 @@ static int amdgpu_mn_invalidate_range_start_gfx(struct mmu_notifier *mn,
* are restorted in amdgpu_mn_invalidate_range_end_hsa.
*/
static int amdgpu_mn_invalidate_range_start_hsa(struct mmu_notifier *mn,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end,
- bool blockable)
+ const struct mmu_notifier_range *range)
{
struct amdgpu_mn *amn = container_of(mn, struct amdgpu_mn, mn);
struct interval_tree_node *it;
+ unsigned long end;

/* notification is exclusive, but interval is inclusive */
- end -= 1;
+ end = range->end - 1;

- if (amdgpu_mn_read_lock(amn, blockable))
+ if (amdgpu_mn_read_lock(amn, range->blockable))
return -EAGAIN;

- it = interval_tree_iter_first(&amn->objects, start, end);
+ it = interval_tree_iter_first(&amn->objects, range->start, end);
while (it) {
struct amdgpu_mn_node *node;
struct amdgpu_bo *bo;

- if (!blockable) {
+ if (!range->blockable) {
amdgpu_mn_read_unlock(amn);
return -EAGAIN;
}

node = container_of(it, struct amdgpu_mn_node, it);
- it = interval_tree_iter_next(it, start, end);
+ it = interval_tree_iter_next(it, range->start, end);

list_for_each_entry(bo, &node->bos, mn_list) {
struct kgd_mem *mem = bo->kfd_bo;

if (amdgpu_ttm_tt_affect_userptr(bo->tbo.ttm,
- start, end))
- amdgpu_amdkfd_evict_userptr(mem, mm);
+ range->start,
+ end))
+ amdgpu_amdkfd_evict_userptr(mem, range->mm);
}
}

@@ -344,9 +341,7 @@ static int amdgpu_mn_invalidate_range_start_hsa(struct mmu_notifier *mn,
* Release the lock again to allow new command submissions.
*/
static void amdgpu_mn_invalidate_range_end(struct mmu_notifier *mn,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end)
+ const struct mmu_notifier_range *range)
{
struct amdgpu_mn *amn = container_of(mn, struct amdgpu_mn, mn);

diff --git a/drivers/gpu/drm/i915/i915_gem_userptr.c b/drivers/gpu/drm/i915/i915_gem_userptr.c
index 2c9b284036d1..3df77020aada 100644
--- a/drivers/gpu/drm/i915/i915_gem_userptr.c
+++ b/drivers/gpu/drm/i915/i915_gem_userptr.c
@@ -113,27 +113,25 @@ static void del_object(struct i915_mmu_object *mo)
}

static int i915_gem_userptr_mn_invalidate_range_start(struct mmu_notifier *_mn,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end,
- bool blockable)
+ const struct mmu_notifier_range *range)
{
struct i915_mmu_notifier *mn =
container_of(_mn, struct i915_mmu_notifier, mn);
struct i915_mmu_object *mo;
struct interval_tree_node *it;
LIST_HEAD(cancelled);
+ unsigned long end;

if (RB_EMPTY_ROOT(&mn->objects.rb_root))
return 0;

/* interval ranges are inclusive, but invalidate range is exclusive */
- end--;
+ end = range->end - 1;

spin_lock(&mn->lock);
- it = interval_tree_iter_first(&mn->objects, start, end);
+ it = interval_tree_iter_first(&mn->objects, range->start, end);
while (it) {
- if (!blockable) {
+ if (!range->blockable) {
spin_unlock(&mn->lock);
return -EAGAIN;
}
@@ -151,7 +149,7 @@ static int i915_gem_userptr_mn_invalidate_range_start(struct mmu_notifier *_mn,
queue_work(mn->wq, &mo->work);

list_add(&mo->link, &cancelled);
- it = interval_tree_iter_next(it, start, end);
+ it = interval_tree_iter_next(it, range->start, end);
}
list_for_each_entry(mo, &cancelled, link)
del_object(mo);
diff --git a/drivers/gpu/drm/radeon/radeon_mn.c b/drivers/gpu/drm/radeon/radeon_mn.c
index f8b35df44c60..b3019505065a 100644
--- a/drivers/gpu/drm/radeon/radeon_mn.c
+++ b/drivers/gpu/drm/radeon/radeon_mn.c
@@ -119,40 +119,38 @@ static void radeon_mn_release(struct mmu_notifier *mn,
* unmap them by move them into system domain again.
*/
static int radeon_mn_invalidate_range_start(struct mmu_notifier *mn,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end,
- bool blockable)
+ const struct mmu_notifier_range *range)
{
struct radeon_mn *rmn = container_of(mn, struct radeon_mn, mn);
struct ttm_operation_ctx ctx = { false, false };
struct interval_tree_node *it;
+ unsigned long end;
int ret = 0;

/* notification is exclusive, but interval is inclusive */
- end -= 1;
+ end = range->end - 1;

/* TODO we should be able to split locking for interval tree and
* the tear down.
*/
- if (blockable)
+ if (range->blockable)
mutex_lock(&rmn->lock);
else if (!mutex_trylock(&rmn->lock))
return -EAGAIN;

- it = interval_tree_iter_first(&rmn->objects, start, end);
+ it = interval_tree_iter_first(&rmn->objects, range->start, end);
while (it) {
struct radeon_mn_node *node;
struct radeon_bo *bo;
long r;

- if (!blockable) {
+ if (!range->blockable) {
ret = -EAGAIN;
goto out_unlock;
}

node = container_of(it, struct radeon_mn_node, it);
- it = interval_tree_iter_next(it, start, end);
+ it = interval_tree_iter_next(it, range->start, end);

list_for_each_entry(bo, &node->bos, mn_list) {

diff --git a/drivers/infiniband/core/umem_odp.c b/drivers/infiniband/core/umem_odp.c
index 676c1fd1119d..25db6ff68c70 100644
--- a/drivers/infiniband/core/umem_odp.c
+++ b/drivers/infiniband/core/umem_odp.c
@@ -146,15 +146,12 @@ static int invalidate_range_start_trampoline(struct ib_umem_odp *item,
}

static int ib_umem_notifier_invalidate_range_start(struct mmu_notifier *mn,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end,
- bool blockable)
+ const struct mmu_notifier_range *range)
{
struct ib_ucontext_per_mm *per_mm =
container_of(mn, struct ib_ucontext_per_mm, mn);

- if (blockable)
+ if (range->blockable)
down_read(&per_mm->umem_rwsem);
else if (!down_read_trylock(&per_mm->umem_rwsem))
return -EAGAIN;
@@ -169,9 +166,10 @@ static int ib_umem_notifier_invalidate_range_start(struct mmu_notifier *mn,
return 0;
}

- return rbt_ib_umem_for_each_in_range(&per_mm->umem_tree, start, end,
+ return rbt_ib_umem_for_each_in_range(&per_mm->umem_tree, range->start,
+ range->end,
invalidate_range_start_trampoline,
- blockable, NULL);
+ range->blockable, NULL);
}

static int invalidate_range_end_trampoline(struct ib_umem_odp *item, u64 start,
@@ -182,9 +180,7 @@ static int invalidate_range_end_trampoline(struct ib_umem_odp *item, u64 start,
}

static void ib_umem_notifier_invalidate_range_end(struct mmu_notifier *mn,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end)
+ const struct mmu_notifier_range *range)
{
struct ib_ucontext_per_mm *per_mm =
container_of(mn, struct ib_ucontext_per_mm, mn);
@@ -192,8 +188,8 @@ static void ib_umem_notifier_invalidate_range_end(struct mmu_notifier *mn,
if (unlikely(!per_mm->active))
return;

- rbt_ib_umem_for_each_in_range(&per_mm->umem_tree, start,
- end,
+ rbt_ib_umem_for_each_in_range(&per_mm->umem_tree, range->start,
+ range->end,
invalidate_range_end_trampoline, true, NULL);
up_read(&per_mm->umem_rwsem);
}
diff --git a/drivers/infiniband/hw/hfi1/mmu_rb.c b/drivers/infiniband/hw/hfi1/mmu_rb.c
index 475b769e120c..14d2a90964c3 100644
--- a/drivers/infiniband/hw/hfi1/mmu_rb.c
+++ b/drivers/infiniband/hw/hfi1/mmu_rb.c
@@ -68,8 +68,7 @@ struct mmu_rb_handler {
static unsigned long mmu_node_start(struct mmu_rb_node *);
static unsigned long mmu_node_last(struct mmu_rb_node *);
static int mmu_notifier_range_start(struct mmu_notifier *,
- struct mm_struct *,
- unsigned long, unsigned long, bool);
+ const struct mmu_notifier_range *);
static struct mmu_rb_node *__mmu_rb_search(struct mmu_rb_handler *,
unsigned long, unsigned long);
static void do_remove(struct mmu_rb_handler *handler,
@@ -284,10 +283,7 @@ void hfi1_mmu_rb_remove(struct mmu_rb_handler *handler,
}

static int mmu_notifier_range_start(struct mmu_notifier *mn,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end,
- bool blockable)
+ const struct mmu_notifier_range *range)
{
struct mmu_rb_handler *handler =
container_of(mn, struct mmu_rb_handler, mn);
@@ -297,10 +293,11 @@ static int mmu_notifier_range_start(struct mmu_notifier *mn,
bool added = false;

spin_lock_irqsave(&handler->lock, flags);
- for (node = __mmu_int_rb_iter_first(root, start, end - 1);
+ for (node = __mmu_int_rb_iter_first(root, range->start, range->end-1);
node; node = ptr) {
/* Guard against node removal. */
- ptr = __mmu_int_rb_iter_next(node, start, end - 1);
+ ptr = __mmu_int_rb_iter_next(node, range->start,
+ range->end - 1);
trace_hfi1_mmu_mem_invalidate(node->addr, node->len);
if (handler->ops->invalidate(handler->ops_arg, node)) {
__mmu_int_rb_remove(node, root);
diff --git a/drivers/misc/mic/scif/scif_dma.c b/drivers/misc/mic/scif/scif_dma.c
index 18b8ed57c4ac..e0d97044d0e9 100644
--- a/drivers/misc/mic/scif/scif_dma.c
+++ b/drivers/misc/mic/scif/scif_dma.c
@@ -201,23 +201,18 @@ static void scif_mmu_notifier_release(struct mmu_notifier *mn,
}

static int scif_mmu_notifier_invalidate_range_start(struct mmu_notifier *mn,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end,
- bool blockable)
+ const struct mmu_notifier_range *range)
{
struct scif_mmu_notif *mmn;

mmn = container_of(mn, struct scif_mmu_notif, ep_mmu_notifier);
- scif_rma_destroy_tcw(mmn, start, end - start);
+ scif_rma_destroy_tcw(mmn, range->start, range->end - range->start);

return 0;
}

static void scif_mmu_notifier_invalidate_range_end(struct mmu_notifier *mn,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end)
+ const struct mmu_notifier_range *range)
{
/*
* Nothing to do here, everything needed was done in
diff --git a/drivers/misc/sgi-gru/grutlbpurge.c b/drivers/misc/sgi-gru/grutlbpurge.c
index 03b49d52092e..ca2032afe035 100644
--- a/drivers/misc/sgi-gru/grutlbpurge.c
+++ b/drivers/misc/sgi-gru/grutlbpurge.c
@@ -220,9 +220,7 @@ void gru_flush_all_tlb(struct gru_state *gru)
* MMUOPS notifier callout functions
*/
static int gru_invalidate_range_start(struct mmu_notifier *mn,
- struct mm_struct *mm,
- unsigned long start, unsigned long end,
- bool blockable)
+ const struct mmu_notifier_range *range)
{
struct gru_mm_struct *gms = container_of(mn, struct gru_mm_struct,
ms_notifier);
@@ -230,15 +228,14 @@ static int gru_invalidate_range_start(struct mmu_notifier *mn,
STAT(mmu_invalidate_range);
atomic_inc(&gms->ms_range_active);
gru_dbg(grudev, "gms %p, start 0x%lx, end 0x%lx, act %d\n", gms,
- start, end, atomic_read(&gms->ms_range_active));
- gru_flush_tlb_range(gms, start, end - start);
+ range->start, range->end, atomic_read(&gms->ms_range_active));
+ gru_flush_tlb_range(gms, range->start, range->end - range->start);

return 0;
}

static void gru_invalidate_range_end(struct mmu_notifier *mn,
- struct mm_struct *mm, unsigned long start,
- unsigned long end)
+ const struct mmu_notifier_range *range)
{
struct gru_mm_struct *gms = container_of(mn, struct gru_mm_struct,
ms_notifier);
@@ -247,7 +244,8 @@ static void gru_invalidate_range_end(struct mmu_notifier *mn,
(void)atomic_dec_and_test(&gms->ms_range_active);

wake_up_all(&gms->ms_wait_queue);
- gru_dbg(grudev, "gms %p, start 0x%lx, end 0x%lx\n", gms, start, end);
+ gru_dbg(grudev, "gms %p, start 0x%lx, end 0x%lx\n",
+ gms, range->start, range->end);
}

static void gru_release(struct mmu_notifier *mn, struct mm_struct *mm)
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index b0b02a501167..5efc5eee9544 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -520,26 +520,26 @@ static int unmap_if_in_range(struct gntdev_grant_map *map,
}

static int mn_invl_range_start(struct mmu_notifier *mn,
- struct mm_struct *mm,
- unsigned long start, unsigned long end,
- bool blockable)
+ const struct mmu_notifier_range *range)
{
struct gntdev_priv *priv = container_of(mn, struct gntdev_priv, mn);
struct gntdev_grant_map *map;
int ret = 0;

- if (blockable)
+ if (range->blockable)
mutex_lock(&priv->lock);
else if (!mutex_trylock(&priv->lock))
return -EAGAIN;

list_for_each_entry(map, &priv->maps, next) {
- ret = unmap_if_in_range(map, start, end, blockable);
+ ret = unmap_if_in_range(map, range->start, range->end,
+ range->blockable);
if (ret)
goto out_unlock;
}
list_for_each_entry(map, &priv->freeable_maps, next) {
- ret = unmap_if_in_range(map, start, end, blockable);
+ ret = unmap_if_in_range(map, range->start, range->end,
+ range->blockable);
if (ret)
goto out_unlock;
}
diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h
index 9893a6432adf..368f0c1a049d 100644
--- a/include/linux/mmu_notifier.h
+++ b/include/linux/mmu_notifier.h
@@ -25,6 +25,13 @@ struct mmu_notifier_mm {
spinlock_t lock;
};

+struct mmu_notifier_range {
+ struct mm_struct *mm;
+ unsigned long start;
+ unsigned long end;
+ bool blockable;
+};
+
struct mmu_notifier_ops {
/*
* Called either by mmu_notifier_unregister or when the mm is
@@ -146,12 +153,9 @@ struct mmu_notifier_ops {
*
*/
int (*invalidate_range_start)(struct mmu_notifier *mn,
- struct mm_struct *mm,
- unsigned long start, unsigned long end,
- bool blockable);
+ const struct mmu_notifier_range *range);
void (*invalidate_range_end)(struct mmu_notifier *mn,
- struct mm_struct *mm,
- unsigned long start, unsigned long end);
+ const struct mmu_notifier_range *range);

/*
* invalidate_range() is either called between
diff --git a/mm/hmm.c b/mm/hmm.c
index 90c34f3d1243..1965f2caf5eb 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -189,35 +189,30 @@ static void hmm_release(struct mmu_notifier *mn, struct mm_struct *mm)
}

static int hmm_invalidate_range_start(struct mmu_notifier *mn,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end,
- bool blockable)
+ const struct mmu_notifier_range *range)
{
struct hmm_update update;
- struct hmm *hmm = mm->hmm;
+ struct hmm *hmm = range->mm->hmm;

VM_BUG_ON(!hmm);

- update.start = start;
- update.end = end;
+ update.start = range->start;
+ update.end = range->end;
update.event = HMM_UPDATE_INVALIDATE;
- update.blockable = blockable;
+ update.blockable = range->blockable;
return hmm_invalidate_range(hmm, true, &update);
}

static void hmm_invalidate_range_end(struct mmu_notifier *mn,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end)
+ const struct mmu_notifier_range *range)
{
struct hmm_update update;
- struct hmm *hmm = mm->hmm;
+ struct hmm *hmm = range->mm->hmm;

VM_BUG_ON(!hmm);

- update.start = start;
- update.end = end;
+ update.start = range->start;
+ update.end = range->end;
update.event = HMM_UPDATE_INVALIDATE;
update.blockable = true;
hmm_invalidate_range(hmm, false, &update);
diff --git a/mm/mmu_notifier.c b/mm/mmu_notifier.c
index 5119ff846769..5f6665ae3ee2 100644
--- a/mm/mmu_notifier.c
+++ b/mm/mmu_notifier.c
@@ -178,14 +178,20 @@ int __mmu_notifier_invalidate_range_start(struct mm_struct *mm,
unsigned long start, unsigned long end,
bool blockable)
{
+ struct mmu_notifier_range _range, *range = &_range;
struct mmu_notifier *mn;
int ret = 0;
int id;

+ range->blockable = blockable;
+ range->start = start;
+ range->end = end;
+ range->mm = mm;
+
id = srcu_read_lock(&srcu);
hlist_for_each_entry_rcu(mn, &mm->mmu_notifier_mm->list, hlist) {
if (mn->ops->invalidate_range_start) {
- int _ret = mn->ops->invalidate_range_start(mn, mm, start, end, blockable);
+ int _ret = mn->ops->invalidate_range_start(mn, range);
if (_ret) {
pr_info("%pS callback failed with %d in %sblockable context.\n",
mn->ops->invalidate_range_start, _ret,
@@ -205,9 +211,20 @@ void __mmu_notifier_invalidate_range_end(struct mm_struct *mm,
unsigned long end,
bool only_end)
{
+ struct mmu_notifier_range _range, *range = &_range;
struct mmu_notifier *mn;
int id;

+ /*
+ * The end call back will never be call if the start refused to go
+ * through because of blockable was false so here assume that we
+ * can block.
+ */
+ range->blockable = true;
+ range->start = start;
+ range->end = end;
+ range->mm = mm;
+
id = srcu_read_lock(&srcu);
hlist_for_each_entry_rcu(mn, &mm->mmu_notifier_mm->list, hlist) {
/*
@@ -226,7 +243,7 @@ void __mmu_notifier_invalidate_range_end(struct mm_struct *mm,
if (!only_end && mn->ops->invalidate_range)
mn->ops->invalidate_range(mn, mm, start, end);
if (mn->ops->invalidate_range_end)
- mn->ops->invalidate_range_end(mn, mm, start, end);
+ mn->ops->invalidate_range_end(mn, range);
}
srcu_read_unlock(&srcu, id);
}
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 2679e476b6c3..f829f63f2b16 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -360,10 +360,7 @@ static void kvm_mmu_notifier_change_pte(struct mmu_notifier *mn,
}

static int kvm_mmu_notifier_invalidate_range_start(struct mmu_notifier *mn,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end,
- bool blockable)
+ const struct mmu_notifier_range *range)
{
struct kvm *kvm = mmu_notifier_to_kvm(mn);
int need_tlb_flush = 0, idx;
@@ -377,7 +374,7 @@ static int kvm_mmu_notifier_invalidate_range_start(struct mmu_notifier *mn,
* count is also read inside the mmu_lock critical section.
*/
kvm->mmu_notifier_count++;
- need_tlb_flush = kvm_unmap_hva_range(kvm, start, end);
+ need_tlb_flush = kvm_unmap_hva_range(kvm, range->start, range->end);
need_tlb_flush |= kvm->tlbs_dirty;
/* we've to flush the tlb before the pages can be freed */
if (need_tlb_flush)
@@ -385,7 +382,8 @@ static int kvm_mmu_notifier_invalidate_range_start(struct mmu_notifier *mn,

spin_unlock(&kvm->mmu_lock);

- ret = kvm_arch_mmu_notifier_invalidate_range(kvm, start, end, blockable);
+ ret = kvm_arch_mmu_notifier_invalidate_range(kvm, range->start,
+ range->end, range->blockable);

srcu_read_unlock(&kvm->srcu, idx);

@@ -393,9 +391,7 @@ static int kvm_mmu_notifier_invalidate_range_start(struct mmu_notifier *mn,
}

static void kvm_mmu_notifier_invalidate_range_end(struct mmu_notifier *mn,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end)
+ const struct mmu_notifier_range *range)
{
struct kvm *kvm = mmu_notifier_to_kvm(mn);

--
2.17.2
\
 
 \ /
  Last update: 2018-12-03 21:19    [W:0.095 / U:4.256 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site