From: jbarnes@sgi.com (Jesse Barnes)
To: akpm@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] fix free_all_bootmem_core for virtual memmap
Date: Mon, 4 Aug 2003 16:08:15 -0700 [thread overview]
Message-ID: <20030804230815.GA2551@sgi.com> (raw)
In-Reply-To: <20030804230511.GA2478@sgi.com>
On Mon, Aug 04, 2003 at 04:05:11PM -0700, jbarnes wrote:
> Currently, free_all_bootmem_core() assumes that the bdata for a given
> node will begin where the node's memory map begins. This isn't
> necessarily true on machines that use a virtual memory map (e.g. ia64
> discontig machines), so we fix page to point to the first actual page of
> RAM on the node, which _does_ contain the bdata struct.
Oops, fix a spelling error.
Jesse
===== mm/bootmem.c 1.20 vs edited =====
--- 1.20/mm/bootmem.c Fri Aug 1 03:01:02 2003
+++ edited/mm/bootmem.c Mon Aug 4 16:01:22 2003
@@ -267,7 +267,7 @@
static unsigned long __init free_all_bootmem_core(pg_data_t *pgdat)
{
- struct page *page = pgdat->node_mem_map;
+ struct page *page;
bootmem_data_t *bdata = pgdat->bdata;
unsigned long i, count, total = 0;
unsigned long idx;
@@ -276,6 +276,8 @@
if (!bdata->node_bootmem_map) BUG();
count = 0;
+ /* first extant page of the node */
+ page = virt_to_page(phys_to_virt(bdata->node_boot_start));
idx = bdata->node_low_pfn - (bdata->node_boot_start >> PAGE_SHIFT);
map = bdata->node_bootmem_map;
for (i = 0; i < idx; ) {
prev parent reply other threads:[~2003-08-04 23:08 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-04 23:05 [PATCH] fix free_all_bootmem_core for virtual memmap Jesse Barnes
2003-08-04 23:08 ` Jesse Barnes [this message]
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