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authorMel Gorman <mgorman@suse.de>2015-06-30 14:56:52 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-06-30 19:44:55 -0700
commitd70ddd7a5d9aa335f9b4b0c3d879e1e70ee1e4e3 (patch)
tree6d41a16e64635ce3cb77d498674bda9fc86053b7
parent92923ca3aacef63c92dc297a75ad0c6dfe4eab37 (diff)
mm: page_alloc: pass PFN to __free_pages_bootmem
__free_pages_bootmem prepares a page for release to the buddy allocator and assumes that the struct page is initialised. Parallel initialisation of struct pages defers initialisation and __free_pages_bootmem can be called for struct pages that cannot yet map struct page to PFN. This patch passes PFN to __free_pages_bootmem with no other functional change. Signed-off-by: Mel Gorman <mgorman@suse.de> Tested-by: Nate Zimmer <nzimmer@sgi.com> Tested-by: Waiman Long <waiman.long@hp.com> Tested-by: Daniel J Blueman <daniel@numascale.com> Acked-by: Pekka Enberg <penberg@kernel.org> Cc: Robin Holt <robinmholt@gmail.com> Cc: Nate Zimmer <nzimmer@sgi.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Waiman Long <waiman.long@hp.com> Cc: Scott Norton <scott.norton@hp.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/bootmem.c13
-rw-r--r--mm/internal.h3
-rw-r--r--mm/memblock.c2
-rw-r--r--mm/nobootmem.c4
-rw-r--r--mm/page_alloc.c3
5 files changed, 14 insertions, 11 deletions
diff --git a/mm/bootmem.c b/mm/bootmem.c
index 477be696511d..a23dd1934654 100644
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -164,7 +164,7 @@ void __init free_bootmem_late(unsigned long physaddr, unsigned long size)
end = PFN_DOWN(physaddr + size);
for (; cursor < end; cursor++) {
- __free_pages_bootmem(pfn_to_page(cursor), 0);
+ __free_pages_bootmem(pfn_to_page(cursor), cursor, 0);
totalram_pages++;
}
}
@@ -172,7 +172,7 @@ void __init free_bootmem_late(unsigned long physaddr, unsigned long size)
static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
{
struct page *page;
- unsigned long *map, start, end, pages, count = 0;
+ unsigned long *map, start, end, pages, cur, count = 0;
if (!bdata->node_bootmem_map)
return 0;
@@ -210,17 +210,17 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
if (IS_ALIGNED(start, BITS_PER_LONG) && vec == ~0UL) {
int order = ilog2(BITS_PER_LONG);
- __free_pages_bootmem(pfn_to_page(start), order);
+ __free_pages_bootmem(pfn_to_page(start), start, order);
count += BITS_PER_LONG;
start += BITS_PER_LONG;
} else {
- unsigned long cur = start;
+ cur = start;
start = ALIGN(start + 1, BITS_PER_LONG);
while (vec && cur != start) {
if (vec & 1) {
page = pfn_to_page(cur);
- __free_pages_bootmem(page, 0);
+ __free_pages_bootmem(page, cur, 0);
count++;
}
vec >>= 1;
@@ -229,12 +229,13 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
}
}
+ cur = bdata->node_min_pfn;
page = virt_to_page(bdata->node_bootmem_map);
pages = bdata->node_low_pfn - bdata->node_min_pfn;
pages = bootmem_bootmap_pages(pages);
count += pages;
while (pages--)
- __free_pages_bootmem(page++, 0);
+ __free_pages_bootmem(page++, cur++, 0);
bdebug("nid=%td released=%lx\n", bdata - bootmem_node_data, count);
diff --git a/mm/internal.h b/mm/internal.h
index a25e359a4039..58e9022e3757 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -155,7 +155,8 @@ __find_buddy_index(unsigned long page_idx, unsigned int order)
}
extern int __isolate_free_page(struct page *page, unsigned int order);
-extern void __free_pages_bootmem(struct page *page, unsigned int order);
+extern void __free_pages_bootmem(struct page *page, unsigned long pfn,
+ unsigned int order);
extern void prep_compound_page(struct page *page, unsigned long order);
#ifdef CONFIG_MEMORY_FAILURE
extern bool is_free_buddy_page(struct page *page);
diff --git a/mm/memblock.c b/mm/memblock.c
index 114df622853f..87108e77e476 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1419,7 +1419,7 @@ void __init __memblock_free_late(phys_addr_t base, phys_addr_t size)
end = PFN_DOWN(base + size);
for (; cursor < end; cursor++) {
- __free_pages_bootmem(pfn_to_page(cursor), 0);
+ __free_pages_bootmem(pfn_to_page(cursor), cursor, 0);
totalram_pages++;
}
}
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index 4af8f88c2bd1..e57cf24babd6 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -86,7 +86,7 @@ void __init free_bootmem_late(unsigned long addr, unsigned long size)
end = PFN_DOWN(addr + size);
for (; cursor < end; cursor++) {
- __free_pages_bootmem(pfn_to_page(cursor), 0);
+ __free_pages_bootmem(pfn_to_page(cursor), cursor, 0);
totalram_pages++;
}
}
@@ -101,7 +101,7 @@ static void __init __free_pages_memory(unsigned long start, unsigned long end)
while (start + (1UL << order) > end)
order--;
- __free_pages_bootmem(pfn_to_page(start), order);
+ __free_pages_bootmem(pfn_to_page(start), start, order);
start += (1UL << order);
}
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 39c8d56a4056..c2ee4ecad083 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -878,7 +878,8 @@ static void __free_pages_ok(struct page *page, unsigned int order)
local_irq_restore(flags);
}
-void __init __free_pages_bootmem(struct page *page, unsigned int order)
+void __init __free_pages_bootmem(struct page *page, unsigned long pfn,
+ unsigned int order)
{
unsigned int nr_pages = 1 << order;
struct page *p = page;