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Diffstat (limited to 'mm/percpu.c')
-rw-r--r--mm/percpu.c36
1 files changed, 7 insertions, 29 deletions
diff --git a/mm/percpu.c b/mm/percpu.c
index b193f2f55..998607adf 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -125,7 +125,6 @@ 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;
@@ -306,16 +305,12 @@ static void *pcpu_mem_zalloc(size_t size)
/**
* pcpu_mem_free - free memory
* @ptr: memory to free
- * @size: size of the area
*
* Free @ptr. @ptr should have been allocated using pcpu_mem_zalloc().
*/
-static void pcpu_mem_free(void *ptr, size_t size)
+static void pcpu_mem_free(void *ptr)
{
- if (size <= PAGE_SIZE)
- kfree(ptr);
- else
- vfree(ptr);
+ kvfree(ptr);
}
/**
@@ -464,8 +459,8 @@ out_unlock:
* pcpu_mem_free() might end up calling vfree() which uses
* IRQ-unsafe lock and thus can't be called under pcpu_lock.
*/
- pcpu_mem_free(old, old_size);
- pcpu_mem_free(new, new_size);
+ pcpu_mem_free(old);
+ pcpu_mem_free(new);
return 0;
}
@@ -733,7 +728,7 @@ static struct pcpu_chunk *pcpu_alloc_chunk(void)
chunk->map = pcpu_mem_zalloc(PCPU_DFL_MAP_ALLOC *
sizeof(chunk->map[0]));
if (!chunk->map) {
- pcpu_mem_free(chunk, pcpu_chunk_struct_size);
+ pcpu_mem_free(chunk);
return NULL;
}
@@ -754,8 +749,8 @@ static void pcpu_free_chunk(struct pcpu_chunk *chunk)
{
if (!chunk)
return;
- pcpu_mem_free(chunk->map, chunk->map_alloc * sizeof(chunk->map[0]));
- pcpu_mem_free(chunk, pcpu_chunk_struct_size);
+ pcpu_mem_free(chunk->map);
+ pcpu_mem_free(chunk);
}
/**
@@ -1795,7 +1790,6 @@ 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;
/*
@@ -2283,22 +2277,6 @@ 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