summaryrefslogtreecommitdiff
path: root/mm/percpu.c
diff options
context:
space:
mode:
authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-26 05:33:09 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-26 05:33:09 -0300
commit4a327fcef90ba27150a3e8741441b68c605ae248 (patch)
treededef84cccbd02054df4cfb844dd3c9d588edf83 /mm/percpu.c
parenta156245300d5362a3b4c4afdace9e2b90169fe43 (diff)
Add TuxOnIce support adapted for the 4.5-gnu kernel versionpck-4.5-gnu
Diffstat (limited to 'mm/percpu.c')
-rw-r--r--mm/percpu.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/mm/percpu.c b/mm/percpu.c
index 998607adf..2f040d0b8 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -125,6 +125,7 @@ static int pcpu_nr_units __read_mostly;
static int pcpu_atom_size __read_mostly;
static int pcpu_nr_slots __read_mostly;
static size_t pcpu_chunk_struct_size __read_mostly;
+static int pcpu_pfns;
/* cpus with the lowest and highest unit addresses */
static unsigned int pcpu_low_unit_cpu __read_mostly;
@@ -1790,6 +1791,7 @@ static struct pcpu_alloc_info * __init pcpu_build_alloc_info(
/* calculate size_sum and ensure dyn_size is enough for early alloc */
size_sum = PFN_ALIGN(static_size + reserved_size +
max_t(size_t, dyn_size, PERCPU_DYNAMIC_EARLY_SIZE));
+ pcpu_pfns = PFN_DOWN(size_sum);
dyn_size = size_sum - static_size - reserved_size;
/*
@@ -2277,6 +2279,22 @@ void __init percpu_init_late(void)
}
}
+#ifdef CONFIG_TOI_INCREMENTAL
+/*
+ * It doesn't matter if we mark an extra page as untracked (and therefore
+ * always save it in incremental images).
+ */
+void toi_mark_per_cpus_pages_untracked(void)
+{
+ int i;
+
+ struct page *page = virt_to_page(pcpu_base_addr);
+
+ for (i = 0; i < pcpu_pfns; i++)
+ SetPageTOI_Untracked(page + i);
+}
+#endif
+
/*
* Percpu allocator is initialized early during boot when neither slab or
* workqueue is available. Plug async management until everything is up