Displaying 6 results from an estimated 6 matches for "xa_store".
2020 Jun 19
0
[PATCH 15/16] mm/hmm/test: add self tests for THP migration
...&& is_zone_device_page(spage)) {
- unsigned long pfn = addr >> PAGE_SHIFT;
void *entry;
mutex_lock(&dmirror->mutex);
@@ -604,18 +653,14 @@ static void dmirror_migrate_alloc_and_copy(struct migrate_vma *args,
entry = xa_tag_pointer(entry, DPT_XA_TAG_WRITE);
xa_store(&dmirror->pt, pfn, entry, GFP_ATOMIC);
mutex_unlock(&dmirror->mutex);
- continue;
+ goto next;
}
- dpage = dmirror_devmem_alloc_page(mdevice);
+ /* This flag is only set if a whole huge page is migrated. */
+ is_huge = *src & MIGRATE_PFN_COMPOUND;
+ dpage = dmirro...
2020 Jun 19
22
[PATCH 00/16] mm/hmm/nouveau: THP mapping and migration
These patches apply to linux-5.8.0-rc1. Patches 1-3 should probably go
into 5.8, the others can be queued for 5.9. Patches 4-6 improve the HMM
self tests. Patch 7-8 prepare nouveau for the meat of this series which
adds support and testing for compound page mapping of system memory
(patches 9-11) and compound page migration to device private memory
(patches 12-16). Since these changes are split
2020 Nov 06
12
[PATCH v3 0/6] mm/hmm/nouveau: add THP migration to migrate_vma_*
This series adds support for transparent huge page migration to
migrate_vma_*() and adds nouveau SVM and HMM selftests as consumers.
Earlier versions were posted previously [1] and [2].
The patches apply cleanly to the linux-mm 5.10.0-rc2 tree. There are a
lot of other THP patches being posted. I don't think there are any
semantic conflicts but there may be some merge conflicts depending on
2020 Sep 02
10
[PATCH v2 0/7] mm/hmm/nouveau: add THP migration to migrate_vma_*
This series adds support for transparent huge page migration to
migrate_vma_*() and adds nouveau SVM and HMM selftests as consumers.
An earlier version was posted previously [1]. This version now
supports splitting a THP midway in the migration process which
led to a number of changes.
The patches apply cleanly to the current linux-mm tree. Since there
are a couple of patches in linux-mm from Dan
2020 Jan 13
9
[PATCH v6 0/6] mm/hmm/test: add self tests for HMM
This series adds new functions to the mmu interval notifier API to
allow device drivers with MMUs to dynamically mirror a process' page
tables based on device faults and invalidation callbacks. The Nouveau
driver is updated to use the extended API and a set of stand alone self
tests is added to help validate and maintain correctness.
The patches are based on linux-5.5.0-rc6 and are for
2020 Apr 22
11
[PATCH hmm 0/5] Adjust hmm_range_fault() API
...fns & range->flags[HMM_PFN_WRITE])
+ if (*pfns & HMM_PFN_WRITE)
entry = xa_tag_pointer(entry, DPT_XA_TAG_WRITE);
- else if (range->default_flags & range->flags[HMM_PFN_WRITE])
+ else if (WARN_ON(range->default_flags & HMM_PFN_WRITE))
return -EFAULT;
entry = xa_store(&dmirror->pt, pfn, entry, GFP_ATOMIC);
if (xa_is_err(entry))
@@ -260,8 +246,6 @@ static int dmirror_range_fault(struct dmirror *dmirror,
int ret;
while (true) {
- long count;
-
if (time_after(jiffies, timeout)) {
ret = -EBUSY;
goto out;
@@ -269,12 +253,11 @@ static int d...