Merge tag 'v6.6-rc4' into perf/core, to pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>

3 files changed, 12 insertions, 51 deletions

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 93015cb64d4e..4c72a41f11af 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -8631,7 +8631,7 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event)
 	unsigned int size;
 	char tmp[16];
 	char *buf = NULL;
-	char *name;
+	char *name = NULL;
 
 	if (vma->vm_flags & VM_READ)
 		prot |= PROT_READ;
@@ -8678,29 +8678,18 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event)
 
 		goto got_name;
 	} else {
-		if (vma->vm_ops && vma->vm_ops->name) {
+		if (vma->vm_ops && vma->vm_ops->name)
 			name = (char *) vma->vm_ops->name(vma);
-			if (name)
-				goto cpy_name;
+		if (!name)
+			name = (char *)arch_vma_name(vma);
+		if (!name) {
+			if (vma_is_initial_heap(vma))
+				name = "[heap]";
+			else if (vma_is_initial_stack(vma))
+				name = "[stack]";
+			else
+				name = "//anon";
 		}
-
-		name = (char *)arch_vma_name(vma);
-		if (name)
-			goto cpy_name;
-
-		if (vma->vm_start <= vma->vm_mm->start_brk &&
-				vma->vm_end >= vma->vm_mm->brk) {
-			name = "[heap]";
-			goto cpy_name;
-		}
-		if (vma->vm_start <= vma->vm_mm->start_stack &&
-				vma->vm_end >= vma->vm_mm->start_stack) {
-			name = "[stack]";
-			goto cpy_name;
-		}
-
-		name = "//anon";
-		goto cpy_name;
 	}
 
 cpy_name:
diff --git a/kernel/events/hw_breakpoint.c b/kernel/events/hw_breakpoint.c
index c3797701339c..6c2cb4e4f48d 100644
--- a/kernel/events/hw_breakpoint.c
+++ b/kernel/events/hw_breakpoint.c
@@ -523,26 +523,6 @@ toggle_bp_slot(struct perf_event *bp, bool enable, enum bp_type_idx type, int we
 	return 0;
 }
 
-__weak int arch_reserve_bp_slot(struct perf_event *bp)
-{
-	return 0;
-}
-
-__weak void arch_release_bp_slot(struct perf_event *bp)
-{
-}
-
-/*
- * Function to perform processor-specific cleanup during unregistration
- */
-__weak void arch_unregister_hw_breakpoint(struct perf_event *bp)
-{
-	/*
-	 * A weak stub function here for those archs that don't define
-	 * it inside arch/.../kernel/hw_breakpoint.c
-	 */
-}
-
 /*
  * Constraints to check before allowing this new breakpoint counter.
  *
@@ -594,7 +574,6 @@ static int __reserve_bp_slot(struct perf_event *bp, u64 bp_type)
 	enum bp_type_idx type;
 	int max_pinned_slots;
 	int weight;
-	int ret;
 
 	/* We couldn't initialize breakpoint constraints on boot */
 	if (!constraints_initialized)
@@ -613,10 +592,6 @@ static int __reserve_bp_slot(struct perf_event *bp, u64 bp_type)
 	if (max_pinned_slots > hw_breakpoint_slots_cached(type))
 		return -ENOSPC;
 
-	ret = arch_reserve_bp_slot(bp);
-	if (ret)
-		return ret;
-
 	return toggle_bp_slot(bp, true, type, weight);
 }
 
@@ -634,8 +609,6 @@ static void __release_bp_slot(struct perf_event *bp, u64 bp_type)
 	enum bp_type_idx type;
 	int weight;
 
-	arch_release_bp_slot(bp);
-
 	type = find_slot_idx(bp_type);
 	weight = hw_breakpoint_weight(bp);
 	WARN_ON(toggle_bp_slot(bp, false, type, weight));
@@ -645,7 +618,6 @@ void release_bp_slot(struct perf_event *bp)
 {
 	struct mutex *mtx = bp_constraints_lock(bp);
 
-	arch_unregister_hw_breakpoint(bp);
 	__release_bp_slot(bp, bp->attr.bp_type);
 	bp_constraints_unlock(mtx);
 }
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index f0ac5b874919..3048589e2e85 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -193,7 +193,7 @@ static int __replace_page(struct vm_area_struct *vma, unsigned long addr,
 	}
 
 	flush_cache_page(vma, addr, pte_pfn(ptep_get(pvmw.pte)));
-	ptep_clear_flush_notify(vma, addr, pvmw.pte);
+	ptep_clear_flush(vma, addr, pvmw.pte);
 	if (new_page)
 		set_pte_at_notify(mm, addr, pvmw.pte,
 				  mk_pte(new_page, vma->vm_page_prot));