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authorHaavard Skinnemoen <haavard.skinnemoen@atmel.com>2008-01-14 22:16:50 +0100
committerHaavard Skinnemoen <haavard.skinnemoen@atmel.com>2008-07-02 11:01:28 +0200
commitebe74597a55fef00edc80a414ef5c6477d035e0a (patch)
tree1fb3ba2c3bdeea931ae47d380692b18f537ebe09 /arch/avr32/mm
parentb13d618b44fefea7529bd467e55423d353a599fc (diff)
downloadlinux-ebe74597a55fef00edc80a414ef5c6477d035e0a.tar.gz
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@atmel.com>
Diffstat (limited to 'arch/avr32/mm')
-rw-r--r--arch/avr32/mm/init.c16
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);