Update Linux to v5.4.148
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.4.148.tar.gz
Change-Id: Ib3d26c5ba9b022e2e03533005c4fed4d7c30b61b
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/kernel/power/energy_model.c b/kernel/power/energy_model.c
index 0a9326f..7ef35eb 100644
--- a/kernel/power/energy_model.c
+++ b/kernel/power/energy_model.c
@@ -74,7 +74,7 @@
return 0;
}
-core_initcall(em_debug_init);
+fs_initcall(em_debug_init);
#else /* CONFIG_DEBUG_FS */
static void em_debug_create_pd(struct em_perf_domain *pd, int cpu) {}
#endif
@@ -149,7 +149,9 @@
/* Compute the cost of each capacity_state. */
fmax = (u64) table[nr_states - 1].frequency;
for (i = 0; i < nr_states; i++) {
- table[i].cost = div64_u64(fmax * table[i].power,
+ unsigned long power_res = em_scale_power(table[i].power);
+
+ table[i].cost = div64_u64(fmax * power_res,
table[i].frequency);
}
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index 3c0a5a8..69c4cd4 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -839,17 +839,6 @@
/* Check if the device is there */
swsusp_resume_device = name_to_dev_t(resume_file);
-
- /*
- * name_to_dev_t is ineffective to verify parition if resume_file is in
- * integer format. (e.g. major:minor)
- */
- if (isdigit(resume_file[0]) && resume_wait) {
- int partno;
- while (!get_gendisk(swsusp_resume_device, &partno))
- msleep(10);
- }
-
if (!swsusp_resume_device) {
/*
* Some device discovery might still be in progress; we need
@@ -898,6 +887,13 @@
error = freeze_processes();
if (error)
goto Close_Finish;
+
+ error = freeze_kernel_threads();
+ if (error) {
+ thaw_processes();
+ goto Close_Finish;
+ }
+
error = load_image_and_restore();
thaw_processes();
Finish:
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 8310587..d65f2d5 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -734,8 +734,15 @@
* We have found the zone. Now walk the radix tree to find the leaf node
* for our PFN.
*/
+
+ /*
+ * If the zone we wish to scan is the the current zone and the
+ * pfn falls into the current node then we do not need to walk
+ * the tree.
+ */
node = bm->cur.node;
- if (((pfn - zone->start_pfn) & ~BM_BLOCK_MASK) == bm->cur.node_pfn)
+ if (zone == bm->cur.zone &&
+ ((pfn - zone->start_pfn) & ~BM_BLOCK_MASK) == bm->cur.node_pfn)
goto node_found;
node = zone->rtree;
@@ -1140,24 +1147,24 @@
void clear_free_pages(void)
{
-#ifdef CONFIG_PAGE_POISONING_ZERO
struct memory_bitmap *bm = free_pages_map;
unsigned long pfn;
if (WARN_ON(!(free_pages_map)))
return;
- memory_bm_position_reset(bm);
- pfn = memory_bm_next_pfn(bm);
- while (pfn != BM_END_OF_MAP) {
- if (pfn_valid(pfn))
- clear_highpage(pfn_to_page(pfn));
-
+ if (IS_ENABLED(CONFIG_PAGE_POISONING_ZERO) || want_init_on_free()) {
+ memory_bm_position_reset(bm);
pfn = memory_bm_next_pfn(bm);
+ while (pfn != BM_END_OF_MAP) {
+ if (pfn_valid(pfn))
+ clear_highpage(pfn_to_page(pfn));
+
+ pfn = memory_bm_next_pfn(bm);
+ }
+ memory_bm_position_reset(bm);
+ pr_info("free pages cleared after restore\n");
}
- memory_bm_position_reset(bm);
- pr_info("free pages cleared after restore\n");
-#endif /* PAGE_POISONING_ZERO */
}
/**
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index f3b7239..27f149f 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -131,11 +131,12 @@
* to avoid them upfront.
*/
for (;;) {
- if (s2idle_ops && s2idle_ops->wake)
- s2idle_ops->wake();
-
- if (pm_wakeup_pending())
+ if (s2idle_ops && s2idle_ops->wake) {
+ if (s2idle_ops->wake())
+ break;
+ } else if (pm_wakeup_pending()) {
break;
+ }
pm_wakeup_clear(false);
diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index ca0fcb5..0516c42 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -489,10 +489,10 @@
unsigned int flags, int error)
{
if (!error) {
- flush_swap_writer(handle);
pr_info("S");
error = mark_swapfiles(handle, flags);
pr_cont("|\n");
+ flush_swap_writer(handle);
}
if (error)