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Message-Id: <1214582276-10889-2-git-send-email-haavard.skinnemoen@atmel.com>
Date: Fri, 27 Jun 2008 17:57:52 +0200
From: Haavard Skinnemoen <haavard.skinnemoen@...el.com>
To: kernel@...32linux.org
Cc: linux-kernel@...r.kernel.org,
Haavard Skinnemoen <haavard.skinnemoen@...el.com>
Subject: [PATCH 2/6] avr32: Remove useless zeroing of swapper_pg_dir at startup
swapper_pg_dir is stored in .bss, so it must already be zeroed out
when we get there.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@...el.com>
---
arch/avr32/mm/init.c | 16 +++-------------
1 files changed, 3 insertions(+), 13 deletions(-)
diff --git a/arch/avr32/mm/init.c b/arch/avr32/mm/init.c
index 5ee1e40..0e77578 100644
--- a/arch/avr32/mm/init.c
+++ b/arch/avr32/mm/init.c
@@ -108,19 +108,9 @@ void __init paging_init(void)
zero_page = alloc_bootmem_low_pages_node(NODE_DATA(0),
PAGE_SIZE);
- {
- pgd_t *pg_dir;
- int i;
-
- pg_dir = swapper_pg_dir;
- sysreg_write(PTBR, (unsigned long)pg_dir);
-
- for (i = 0; i < PTRS_PER_PGD; i++)
- pgd_val(pg_dir[i]) = 0;
-
- enable_mmu();
- printk ("CPU: Paging enabled\n");
- }
+ sysreg_write(PTBR, (unsigned long)swapper_pg_dir);
+ enable_mmu();
+ printk ("CPU: Paging enabled\n");
for_each_online_node(nid) {
pg_data_t *pgdat = NODE_DATA(nid);
--
1.5.5.4
--
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