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authorJohannes Weiner <hannes@saeurebad.de>2008-07-24 08:28:09 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-24 21:47:20 +0400
commit3560e249abda6bee41a07a7bf0383a6e193e2839 (patch)
treea5770b74f13dca64e34cd5a1e3182e4e1f98a9ca /arch/ia64/mm
parent75a56cfe9fdb064d1db1cfbc564315fddb756fb1 (diff)
downloadlinux-3560e249abda6bee41a07a7bf0383a6e193e2839.tar.xz
bootmem: replace node_boot_start in struct bootmem_data
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@hp.com: fix spurious BUG_ON() in mark_bootmem()] Signed-off-by: Johannes Weiner <hannes@saeureba.de> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/ia64/mm')
-rw-r--r--arch/ia64/mm/discontig.c19
1 files changed, 10 insertions, 9 deletions
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index 2fcf8464331e..d83125e1ed27 100644
--- a/arch/ia64/mm/discontig.c
+++ b/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, unsigned long pernode,
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(void)
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);
}