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Subject[PATCH v6 3/5] mm: remove __paginginit
Date
From: Pavel Tatashin <pasha.tatashin@oracle.com>

__paginginit is the same thing as __meminit except for platforms without
sparsemem, there it is defined as __init.

Remove __paginginit and use __meminit. Use __ref in one single function
that merges __meminit and __init sections: setup_usemap().

Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
---
mm/internal.h | 12 ------------
mm/page_alloc.c | 19 ++++++++++---------
2 files changed, 10 insertions(+), 21 deletions(-)

diff --git a/mm/internal.h b/mm/internal.h
index 33c22754d282..87256ae1bef8 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -389,18 +389,6 @@ static inline struct page *mem_map_next(struct page *iter,
return iter + 1;
}

-/*
- * FLATMEM and DISCONTIGMEM configurations use alloc_bootmem_node,
- * so all functions starting at paging_init should be marked __init
- * in those cases. SPARSEMEM, however, allows for memory hotplug,
- * and alloc_bootmem_node is not used.
- */
-#ifdef CONFIG_SPARSEMEM
-#define __paginginit __meminit
-#else
-#define __paginginit __init
-#endif
-
/* Memory initialisation debug and verification */
enum mminit_level {
MMINIT_WARNING,
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 295977c6acae..607f98f8816d 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6122,7 +6122,7 @@ static unsigned long __init usemap_size(unsigned long zone_start_pfn, unsigned l
return usemapsize / 8;
}

-static void __init setup_usemap(struct pglist_data *pgdat,
+static void __ref setup_usemap(struct pglist_data *pgdat,
struct zone *zone,
unsigned long zone_start_pfn,
unsigned long zonesize)
@@ -6142,7 +6142,7 @@ static inline void setup_usemap(struct pglist_data *pgdat, struct zone *zone,
#ifdef CONFIG_HUGETLB_PAGE_SIZE_VARIABLE

/* Initialise the number of pages represented by NR_PAGEBLOCK_BITS */
-void __paginginit set_pageblock_order(void)
+void __meminit set_pageblock_order(void)
{
unsigned int order;

@@ -6170,14 +6170,14 @@ void __paginginit set_pageblock_order(void)
* include/linux/pageblock-flags.h for the values of pageblock_order based on
* the kernel config
*/
-void __paginginit set_pageblock_order(void)
+void __meminit set_pageblock_order(void)
{
}

#endif /* CONFIG_HUGETLB_PAGE_SIZE_VARIABLE */

-static unsigned long __paginginit calc_memmap_size(unsigned long spanned_pages,
- unsigned long present_pages)
+static unsigned long __meminit calc_memmap_size(unsigned long spanned_pages,
+ unsigned long present_pages)
{
unsigned long pages = spanned_pages;

@@ -6235,7 +6235,7 @@ static void pgdat_init_kcompactd(struct pglist_data *pgdat) {}
*
* NOTE: pgdat should get zeroed by caller.
*/
-static void __paginginit free_area_init_core(struct pglist_data *pgdat)
+static void __meminit free_area_init_core(struct pglist_data *pgdat)
{
enum zone_type j;
int nid = pgdat->node_id;
@@ -6366,8 +6366,9 @@ static void __ref alloc_node_mem_map(struct pglist_data *pgdat)
static void __ref alloc_node_mem_map(struct pglist_data *pgdat) { }
#endif /* CONFIG_FLAT_NODE_MEM_MAP */

-void __paginginit free_area_init_node(int nid, unsigned long *zones_size,
- unsigned long node_start_pfn, unsigned long *zholes_size)
+void __meminit free_area_init_node(int nid, unsigned long *zones_size,
+ unsigned long node_start_pfn,
+ unsigned long *zholes_size)
{
pg_data_t *pgdat = NODE_DATA(nid);
unsigned long start_pfn = 0;
@@ -6412,7 +6413,7 @@ void __paginginit free_area_init_node(int nid, unsigned long *zones_size,
* may be accessed (for example page_to_pfn() on some configuration accesses
* flags). We must explicitly zero those struct pages.
*/
-void __paginginit zero_resv_unavail(void)
+void __meminit zero_resv_unavail(void)
{
phys_addr_t start, end;
unsigned long pfn;
--
2.13.6
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