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| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-09-08 11:24:16 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-09-08 11:24:16 -0300 |
| commit | 376027f2a3888ef3dec73ee41f85d90e51162d78 (patch) | |
| tree | ac9a9030d31cadc92fdc4145a3d9bf379064721f /mm/percpu.c | |
| parent | e5fd91f1ef340da553f7a79da9540c3db711c937 (diff) | |
Add TuxOnIce support
Diffstat (limited to 'mm/percpu.c')
| -rw-r--r-- | mm/percpu.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/mm/percpu.c b/mm/percpu.c index 2dd74487a..b4fe24569 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; @@ -1795,6 +1796,7 @@ 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; /* @@ -2282,6 +2284,22 @@ 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 |