Displaying 7 results from an estimated 7 matches for "mmu_interval_notifier_find".
2020 Jan 13
0
[PATCH v6 4/6] mm/mmu_notifier: add mmu_interval_notifier_find()
...+314,21 @@ void mmu_interval_notifier_remove(struct mmu_interval_notifier *mni);
void mmu_interval_notifier_put(struct mmu_interval_notifier *mni);
void mmu_interval_notifier_update(struct mmu_interval_notifier *mni,
unsigned long start, unsigned long last);
+struct mmu_interval_notifier *mmu_interval_notifier_find(struct mm_struct *mm,
+ const struct mmu_interval_notifier_ops *ops,
+ unsigned long start, unsigned long last);
+
+static inline unsigned long mmu_interval_notifier_start(
+ struct mmu_interval_notifier *mni)
+{
+ return mni->interval_tree.start;
+}
+
+static inline unsigned long mmu_i...
2020 Jan 15
0
[PATCH v6 4/6] mm/mmu_notifier: add mmu_interval_notifier_find()
...index 47ad9cc89aab..4efecc0f13cb 100644
>> +++ b/mm/mmu_notifier.c
>> @@ -1171,6 +1171,39 @@ void mmu_interval_notifier_update(struct mmu_interval_notifier *mni,
>> }
>> EXPORT_SYMBOL_GPL(mmu_interval_notifier_update);
>>
>> +struct mmu_interval_notifier *mmu_interval_notifier_find(struct mm_struct *mm,
>> + const struct mmu_interval_notifier_ops *ops,
>> + unsigned long start, unsigned long last)
>> +{
>> + struct mmu_notifier_mm *mmn_mm = mm->mmu_notifier_mm;
>> + struct interval_tree_node *node;
>> + struct mmu_interval_notifier...
2020 Jan 14
2
[PATCH v6 4/6] mm/mmu_notifier: add mmu_interval_notifier_find()
....c b/mm/mmu_notifier.c
> index 47ad9cc89aab..4efecc0f13cb 100644
> +++ b/mm/mmu_notifier.c
> @@ -1171,6 +1171,39 @@ void mmu_interval_notifier_update(struct mmu_interval_notifier *mni,
> }
> EXPORT_SYMBOL_GPL(mmu_interval_notifier_update);
>
> +struct mmu_interval_notifier *mmu_interval_notifier_find(struct mm_struct *mm,
> + const struct mmu_interval_notifier_ops *ops,
> + unsigned long start, unsigned long last)
> +{
> + struct mmu_notifier_mm *mmn_mm = mm->mmu_notifier_mm;
> + struct interval_tree_node *node;
> + struct mmu_interval_notifier *mni;
> + struct mmu...
2020 Jan 13
0
[PATCH v6 5/6] nouveau: use new mmu interval notifiers
...uveau_svmm_invalidate_range_start,
- .free_notifier = nouveau_svmm_free_notifier,
-};
-
void
nouveau_svmm_fini(struct nouveau_svmm **psvmm)
{
struct nouveau_svmm *svmm = *psvmm;
+ struct mmu_interval_notifier *mni;
+
if (svmm) {
mutex_lock(&svmm->mutex);
+ while (true) {
+ mni = mmu_interval_notifier_find(svmm->mm,
+ &nouveau_svm_mni_ops, 0UL, ~0UL);
+ if (!mni)
+ break;
+ mmu_interval_notifier_put(mni);
+ }
svmm->vmm = NULL;
mutex_unlock(&svmm->mutex);
- mmu_notifier_put(&svmm->notifier);
+ mmdrop(svmm->mm);
+ kfree(svmm);
*psvmm = NULL;
}
}
@@...
2020 Jan 13
9
[PATCH v6 0/6] mm/hmm/test: add self tests for HMM
...ges v1 -> v4:
https://lore.kernel.org/linux-mm/20191104222141.5173-1-rcampbell at nvidia.com
Ralph Campbell (6):
mm/mmu_notifier: add mmu_interval_notifier_insert_safe()
mm/mmu_notifier: add mmu_interval_notifier_put()
mm/notifier: add mmu_interval_notifier_update()
mm/mmu_notifier: add mmu_interval_notifier_find()
nouveau: use new mmu interval notifiers
mm/hmm/test: add self tests for HMM
MAINTAINERS | 3 +
drivers/gpu/drm/nouveau/nouveau_svm.c | 313 ++++--
include/linux/mmu_notifier.h | 29 +
lib/Kconfig.debug | 11 +
lib/Makefile...
2020 Jan 14
2
[PATCH v6 5/6] nouveau: use new mmu interval notifiers
...:47:02PM -0800, Ralph Campbell wrote:
> void
> nouveau_svmm_fini(struct nouveau_svmm **psvmm)
> {
> struct nouveau_svmm *svmm = *psvmm;
> + struct mmu_interval_notifier *mni;
> +
> if (svmm) {
> mutex_lock(&svmm->mutex);
> + while (true) {
> + mni = mmu_interval_notifier_find(svmm->mm,
> + &nouveau_svm_mni_ops, 0UL, ~0UL);
> + if (!mni)
> + break;
> + mmu_interval_notifier_put(mni);
Oh, now I really don't like the name 'put'. It looks like mni is
refcounted here, and it isn't. put should be called 'remove_deferred'...
2020 Jan 15
0
[PATCH v6 5/6] nouveau: use new mmu interval notifiers
...void
>> nouveau_svmm_fini(struct nouveau_svmm **psvmm)
>> {
>> struct nouveau_svmm *svmm = *psvmm;
>> + struct mmu_interval_notifier *mni;
>> +
>> if (svmm) {
>> mutex_lock(&svmm->mutex);
>> + while (true) {
>> + mni = mmu_interval_notifier_find(svmm->mm,
>> + &nouveau_svm_mni_ops, 0UL, ~0UL);
>> + if (!mni)
>> + break;
>> + mmu_interval_notifier_put(mni);
>
> Oh, now I really don't like the name 'put'. It looks like mni is
> refcounted here, and it isn't. put should be ca...