The patch titled
bootmem: replace node_boot_start in struct bootmem_data
has been removed from the -mm tree. Its filename was
bootmem-replace-node_boot_start-in-struct-bootmem_data.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: bootmem: replace node_boot_start in struct bootmem_data
From: Johannes Weiner <hannes@xxxxxxxxxxxx>
Almost all users of this field need a PFN instead of a physical address,
so replace node_boot_start with node_min_pfn.
[Lee.Schermerhorn@xxxxxx: fix spurious BUG_ON() in mark_bootmem()]
Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: <linux-arch@xxxxxxxxxxxxxxx>
Signed-off-by: Lee Schermerhorn <lee.schermerhorn@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/alpha/mm/numa.c | 2 -
arch/arm/plat-omap/fb.c | 4 ---
arch/avr32/mm/init.c | 3 --
arch/ia64/mm/discontig.c | 19 +++++++++--------
arch/m32r/mm/discontig.c | 3 --
arch/m32r/mm/init.c | 4 ---
arch/mn10300/mm/init.c | 6 ++---
arch/sh/mm/init.c | 2 -
include/linux/bootmem.h | 2 -
mm/bootmem.c | 40 +++++++++++++++++++------------------
10 files changed, 41 insertions(+), 44 deletions(-)
diff -puN arch/alpha/mm/numa.c~bootmem-replace-node_boot_start-in-struct-bootmem_data arch/alpha/mm/numa.c
--- a/arch/alpha/mm/numa.c~bootmem-replace-node_boot_start-in-struct-bootmem_data
+++ a/arch/alpha/mm/numa.c
@@ -304,7 +304,7 @@ void __init paging_init(void)
for_each_online_node(nid) {
bootmem_data_t *bdata = &bootmem_node_data[nid];
- unsigned long start_pfn = bdata->node_boot_start >> PAGE_SHIFT;
+ unsigned long start_pfn = bdata->node_min_pfn;
unsigned long end_pfn = bdata->node_low_pfn;
if (dma_local_pfn >= end_pfn - start_pfn)
diff -puN arch/arm/plat-omap/fb.c~bootmem-replace-node_boot_start-in-struct-bootmem_data arch/arm/plat-omap/fb.c
--- a/arch/arm/plat-omap/fb.c~bootmem-replace-node_boot_start-in-struct-bootmem_data
+++ a/arch/arm/plat-omap/fb.c
@@ -182,7 +182,7 @@ void __init omapfb_reserve_sdram(void)
return;
bdata = NODE_DATA(0)->bdata;
- sdram_start = bdata->node_boot_start;
+ sdram_start = bdata->node_min_pfn << PAGE_SHIFT;
sdram_size = (bdata->node_low_pfn << PAGE_SHIFT) - sdram_start;
reserved = 0;
for (i = 0; ; i++) {
@@ -340,5 +340,3 @@ unsigned long omapfb_reserve_sram(unsign
#endif
-
-
diff -puN arch/avr32/mm/init.c~bootmem-replace-node_boot_start-in-struct-bootmem_data arch/avr32/mm/init.c
--- a/arch/avr32/mm/init.c~bootmem-replace-node_boot_start-in-struct-bootmem_data
+++ a/arch/avr32/mm/init.c
@@ -119,8 +119,7 @@ void __init paging_init(void)
unsigned long zones_size[MAX_NR_ZONES];
unsigned long low, start_pfn;
- start_pfn = pgdat->bdata->node_boot_start;
- start_pfn >>= PAGE_SHIFT;
+ start_pfn = pgdat->bdata->node_min_pfn;
low = pgdat->bdata->node_low_pfn;
memset(zones_size, 0, sizeof(zones_size));
diff -puN arch/ia64/mm/discontig.c~bootmem-replace-node_boot_start-in-struct-bootmem_data arch/ia64/mm/discontig.c
--- a/arch/ia64/mm/discontig.c~bootmem-replace-node_boot_start-in-struct-bootmem_data
+++ a/arch/ia64/mm/discontig.c
@@ -74,17 +74,17 @@ pg_data_t *pgdat_list[MAX_NUMNODES];
static int __init build_node_maps(unsigned long start, unsigned long len,
int node)
{
- unsigned long cstart, epfn, end = start + len;
+ unsigned long spfn, epfn, end = start + len;
struct bootmem_data *bdp = &bootmem_node_data[node];
epfn = GRANULEROUNDUP(end) >> PAGE_SHIFT;
- cstart = GRANULEROUNDDOWN(start);
+ spfn = GRANULEROUNDDOWN(start) >> PAGE_SHIFT;
if (!bdp->node_low_pfn) {
- bdp->node_boot_start = cstart;
+ bdp->node_min_pfn = spfn;
bdp->node_low_pfn = epfn;
} else {
- bdp->node_boot_start = min(cstart, bdp->node_boot_start);
+ bdp->node_min_pfn = min(spfn, bdp->node_min_pfn);
bdp->node_low_pfn = max(epfn, bdp->node_low_pfn);
}
@@ -221,20 +221,21 @@ static void __init fill_pernode(int node
static int __init find_pernode_space(unsigned long start, unsigned long len,
int node)
{
- unsigned long epfn;
+ unsigned long spfn, epfn;
unsigned long pernodesize = 0, pernode, pages, mapsize;
struct bootmem_data *bdp = &bootmem_node_data[node];
+ spfn = start >> PAGE_SHIFT;
epfn = (start + len) >> PAGE_SHIFT;
- pages = bdp->node_low_pfn - (bdp->node_boot_start >> PAGE_SHIFT);
+ pages = bdp->node_low_pfn - bdp->node_min_pfn;
mapsize = bootmem_bootmap_pages(pages) << PAGE_SHIFT;
/*
* Make sure this memory falls within this node's usable memory
* since we may have thrown some away in build_maps().
*/
- if (start < bdp->node_boot_start || epfn > bdp->node_low_pfn)
+ if (spfn < bdp->node_min_pfn || epfn > bdp->node_low_pfn)
return 0;
/* Don't setup this node's local space twice... */
@@ -296,7 +297,7 @@ static void __init reserve_pernode_space
bdp = pdp->bdata;
/* First the bootmem_map itself */
- pages = bdp->node_low_pfn - (bdp->node_boot_start>>PAGE_SHIFT);
+ pages = bdp->node_low_pfn - bdp->node_min_pfn;
size = bootmem_bootmap_pages(pages) << PAGE_SHIFT;
base = __pa(bdp->node_bootmem_map);
reserve_bootmem_node(pdp, base, size, BOOTMEM_DEFAULT);
@@ -466,7 +467,7 @@ void __init find_memory(void)
init_bootmem_node(pgdat_list[node],
map>>PAGE_SHIFT,
- bdp->node_boot_start>>PAGE_SHIFT,
+ bdp->node_min_pfn,
bdp->node_low_pfn);
}
diff -puN arch/m32r/mm/discontig.c~bootmem-replace-node_boot_start-in-struct-bootmem_data arch/m32r/mm/discontig.c
--- a/arch/m32r/mm/discontig.c~bootmem-replace-node_boot_start-in-struct-bootmem_data
+++ a/arch/m32r/mm/discontig.c
@@ -123,8 +123,7 @@ unsigned long __init setup_memory(void)
return max_low_pfn;
}
-#define START_PFN(nid) \
- (NODE_DATA(nid)->bdata->node_boot_start >> PAGE_SHIFT)
+#define START_PFN(nid) (NODE_DATA(nid)->bdata->node_min_pfn)
#define MAX_LOW_PFN(nid) (NODE_DATA(nid)->bdata->node_low_pfn)
unsigned long __init zone_sizes_init(void)
diff -puN arch/m32r/mm/init.c~bootmem-replace-node_boot_start-in-struct-bootmem_data arch/m32r/mm/init.c
--- a/arch/m32r/mm/init.c~bootmem-replace-node_boot_start-in-struct-bootmem_data
+++ a/arch/m32r/mm/init.c
@@ -93,8 +93,7 @@ void free_initrd_mem(unsigned long, unsi
#endif
/* It'd be good if these lines were in the standard header file. */
-#define START_PFN(nid) \
- (NODE_DATA(nid)->bdata->node_boot_start >> PAGE_SHIFT)
+#define START_PFN(nid) (NODE_DATA(nid)->bdata->node_min_pfn)
#define MAX_LOW_PFN(nid) (NODE_DATA(nid)->bdata->node_low_pfn)
#ifndef CONFIG_DISCONTIGMEM
@@ -252,4 +251,3 @@ void free_initrd_mem(unsigned long start
printk (KERN_INFO "Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
}
#endif
-
diff -puN arch/mn10300/mm/init.c~bootmem-replace-node_boot_start-in-struct-bootmem_data arch/mn10300/mm/init.c
--- a/arch/mn10300/mm/init.c~bootmem-replace-node_boot_start-in-struct-bootmem_data
+++ a/arch/mn10300/mm/init.c
@@ -67,8 +67,8 @@ void __init paging_init(void)
/* declare the sizes of the RAM zones (only use the normal zone) */
zones_size[ZONE_NORMAL] =
- (contig_page_data.bdata->node_low_pfn) -
- (contig_page_data.bdata->node_boot_start >> PAGE_SHIFT);
+ contig_page_data.bdata->node_low_pfn -
+ contig_page_data.bdata->node_min_pfn;
/* pass the memory from the bootmem allocator to the main allocator */
free_area_init(zones_size);
@@ -87,7 +87,7 @@ void __init mem_init(void)
if (!mem_map)
BUG();
-#define START_PFN (contig_page_data.bdata->node_boot_start >> PAGE_SHIFT)
+#define START_PFN (contig_page_data.bdata->node_min_pfn)
#define MAX_LOW_PFN (contig_page_data.bdata->node_low_pfn)
max_mapnr = num_physpages = MAX_LOW_PFN - START_PFN;
diff -puN arch/sh/mm/init.c~bootmem-replace-node_boot_start-in-struct-bootmem_data arch/sh/mm/init.c
--- a/arch/sh/mm/init.c~bootmem-replace-node_boot_start-in-struct-bootmem_data
+++ a/arch/sh/mm/init.c
@@ -191,7 +191,7 @@ void __init paging_init(void)
pg_data_t *pgdat = NODE_DATA(nid);
unsigned long low, start_pfn;
- start_pfn = pgdat->bdata->node_boot_start >> PAGE_SHIFT;
+ start_pfn = pgdat->bdata->node_min_pfn;
low = pgdat->bdata->node_low_pfn;
if (max_zone_pfns[ZONE_NORMAL] < low)
diff -puN include/linux/bootmem.h~bootmem-replace-node_boot_start-in-struct-bootmem_data include/linux/bootmem.h
--- a/include/linux/bootmem.h~bootmem-replace-node_boot_start-in-struct-bootmem_data
+++ a/include/linux/bootmem.h
@@ -28,7 +28,7 @@ extern unsigned long saved_max_pfn;
* memory pages (including holes) on the node.
*/
typedef struct bootmem_data {
- unsigned long node_boot_start;
+ unsigned long node_min_pfn;
unsigned long node_low_pfn;
void *node_bootmem_map;
unsigned long last_end_off;
diff -puN mm/bootmem.c~bootmem-replace-node_boot_start-in-struct-bootmem_data mm/bootmem.c
--- a/mm/bootmem.c~bootmem-replace-node_boot_start-in-struct-bootmem_data
+++ a/mm/bootmem.c
@@ -80,7 +80,7 @@ static void __init link_bootmem(bootmem_
bootmem_data_t *ent;
ent = list_entry(iter, bootmem_data_t, list);
- if (bdata->node_boot_start < ent->node_boot_start)
+ if (bdata->node_min_pfn < ent->node_min_pfn)
break;
}
list_add_tail(&bdata->list, iter);
@@ -96,7 +96,7 @@ static unsigned long __init init_bootmem
mminit_validate_memmodel_limits(&start, &end);
bdata->node_bootmem_map = phys_to_virt(PFN_PHYS(mapstart));
- bdata->node_boot_start = PFN_PHYS(start);
+ bdata->node_min_pfn = start;
bdata->node_low_pfn = end;
link_bootmem(bdata);
@@ -151,7 +151,7 @@ static unsigned long __init free_all_boo
if (!bdata->node_bootmem_map)
return 0;
- start = PFN_DOWN(bdata->node_boot_start);
+ start = bdata->node_min_pfn;
end = bdata->node_low_pfn;
/*
@@ -167,7 +167,7 @@ static unsigned long __init free_all_boo
unsigned long *map, idx, vec;
map = bdata->node_bootmem_map;
- idx = start - PFN_DOWN(bdata->node_boot_start);
+ idx = start - bdata->node_min_pfn;
vec = ~map[idx / BITS_PER_LONG];
if (aligned && vec == ~0UL && start + BITS_PER_LONG < end) {
@@ -192,7 +192,7 @@ static unsigned long __init free_all_boo
}
page = virt_to_page(bdata->node_bootmem_map);
- pages = bdata->node_low_pfn - PFN_DOWN(bdata->node_boot_start);
+ pages = bdata->node_low_pfn - bdata->node_min_pfn;
pages = bootmem_bootmap_pages(pages);
count += pages;
while (pages--)
@@ -231,8 +231,8 @@ static void __init __free(bootmem_data_t
unsigned long idx;
bdebug("nid=%td start=%lx end=%lx\n", bdata - bootmem_node_data,
- sidx + PFN_DOWN(bdata->node_boot_start),
- eidx + PFN_DOWN(bdata->node_boot_start));
+ sidx + bdata->node_min_pfn,
+ eidx + bdata->node_min_pfn);
if (bdata->hint_idx > sidx)
bdata->hint_idx = sidx;
@@ -250,8 +250,8 @@ static int __init __reserve(bootmem_data
bdebug("nid=%td start=%lx end=%lx flags=%x\n",
bdata - bootmem_node_data,
- sidx + PFN_DOWN(bdata->node_boot_start),
- eidx + PFN_DOWN(bdata->node_boot_start),
+ sidx + bdata->node_min_pfn,
+ eidx + bdata->node_min_pfn,
flags);
for (idx = sidx; idx < eidx; idx++)
@@ -261,7 +261,7 @@ static int __init __reserve(bootmem_data
return -EBUSY;
}
bdebug("silent double reserve of PFN %lx\n",
- idx + PFN_DOWN(bdata->node_boot_start));
+ idx + bdata->node_min_pfn);
}
return 0;
}
@@ -275,11 +275,11 @@ static int __init mark_bootmem_node(boot
bdebug("nid=%td start=%lx end=%lx reserve=%d flags=%x\n",
bdata - bootmem_node_data, start, end, reserve, flags);
- BUG_ON(start < PFN_DOWN(bdata->node_boot_start));
+ BUG_ON(start < bdata->node_min_pfn);
BUG_ON(end > bdata->node_low_pfn);
- sidx = start - PFN_DOWN(bdata->node_boot_start);
- eidx = end - PFN_DOWN(bdata->node_boot_start);
+ sidx = start - bdata->node_min_pfn;
+ eidx = end - bdata->node_min_pfn;
if (reserve)
return __reserve(bdata, sidx, eidx, flags);
@@ -299,7 +299,8 @@ static int __init mark_bootmem(unsigned
int err;
unsigned long max;
- if (pos < PFN_DOWN(bdata->node_boot_start)) {
+ if (pos < bdata->node_min_pfn ||
+ pos >= bdata->node_low_pfn) {
BUG_ON(pos != start);
continue;
}
@@ -422,7 +423,7 @@ static void * __init alloc_bootmem_core(
bdata - bootmem_node_data, size, PAGE_ALIGN(size) >> PAGE_SHIFT,
align, goal, limit);
- min = PFN_DOWN(bdata->node_boot_start);
+ min = bdata->node_min_pfn;
max = bdata->node_low_pfn;
goal >>= PAGE_SHIFT;
@@ -440,8 +441,8 @@ static void * __init alloc_bootmem_core(
else
start = ALIGN(min, step);
- sidx = start - PFN_DOWN(bdata->node_boot_start);
- midx = max - PFN_DOWN(bdata->node_boot_start);
+ sidx = start - bdata->node_min_pfn;;
+ midx = max - bdata->node_min_pfn;
if (bdata->hint_idx > sidx) {
/*
@@ -491,7 +492,8 @@ find_block:
PFN_UP(end_off), BOOTMEM_EXCLUSIVE))
BUG();
- region = phys_to_virt(bdata->node_boot_start + start_off);
+ region = phys_to_virt(PFN_PHYS(bdata->node_min_pfn) +
+ start_off);
memset(region, 0, size);
return region;
}
@@ -518,7 +520,7 @@ restart:
if (goal && bdata->node_low_pfn <= PFN_DOWN(goal))
continue;
- if (limit && bdata->node_boot_start >= limit)
+ if (limit && bdata->node_min_pfn >= PFN_DOWN(limit))
break;
region = alloc_bootmem_core(bdata, size, align, goal, limit);
_
Patches currently in -mm which might be from hannes@xxxxxxxxxxxx are
origin.patch
linux-next.patch
git-xtensa.patch
documentation-update-codingstyle-tips-for-emacs-users-v2.patch
mm-more-likely-reclaim-madv_sequential-mappings.patch
mm-print-swapcache-page-count-in-show_swap_cache_info.patch
lib-generic-show_mem.patch
alpha-use-generic-show_mem.patch
avr32-use-generic-show_mem.patch
blackfin-use-generic-show_mem.patch
xtensa-use-generic-show_mem.patch
x86-use-generic-show_mem.patch
um-use-generic-show_mem.patch
sparc64-use-generic-show_mem.patch
sh-use-generic-show_mem.patch
s390-use-generic-show_mem.patch
powerpc-use-generic-show_mem.patch
mn10300-use-generic-show_mem.patch
h8300-use-generic-show_mem.patch
mips-use-generic-show_mem.patch
m68knommu-use-generic-show_mem.patch
m68k-use-generic-show_mem.patch
m32r-use-generic-show_mem.patch
frv-use-generic-show_mem.patch
cris-use-generic-show_mem.patch
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