linux-mips
[Top] [All Lists]

[PATCH]: remove pgd_base

To: Ralf Baechle <ralf@linux-mips.org>, mipslist <linux-mips@linux-mips.org>
Subject: [PATCH]: remove pgd_base
From: Juan Quintela <quintela@mandrakesoft.com>
Date: Thu, 27 Mar 2003 03:52:26 +0100
Original-recipient: rfc822;linux-mips@linux-mips.org
Sender: linux-mips-bounce@linux-mips.org
Hi

pgd_base was only used in the CONFIG_HIGHMEM.  Used constant
propagation and we are done.

Later, Juan.


 build/arch/mips/mm/init.c |    8 +++-----
 1 files changed, 3 insertions(+), 5 deletions(-)

diff -puN build/arch/mips/mm/init.c~remove_unused_var_init.c 
build/arch/mips/mm/init.c
--- 24/build/arch/mips/mm/init.c~remove_unused_var_init.c       2003-03-19 
23:37:26.000000000 +0100
+++ 24-quintela/build/arch/mips/mm/init.c       2003-03-19 23:39:06.000000000 
+0100
@@ -193,7 +193,7 @@ static void __init fixrange_init (unsign
 void __init pagetable_init(void)
 {
        unsigned long vaddr;
-       pgd_t *pgd, *pgd_base;
+       pgd_t *pgd;
        pmd_t *pmd;
        pte_t *pte;
 
@@ -202,20 +202,18 @@ void __init pagetable_init(void)
        pgd_init((unsigned long)swapper_pg_dir +
                 sizeof(pgd_t ) * USER_PTRS_PER_PGD);
 
-       pgd_base = swapper_pg_dir;
-
 #ifdef CONFIG_HIGHMEM
        /*
         * Fixed mappings:
         */
        vaddr = __fix_to_virt(__end_of_fixed_addresses - 1) & PMD_MASK;
-       fixrange_init(vaddr, 0, pgd_base);
+       fixrange_init(vaddr, 0, swapper_pg_dir);
 
        /*
         * Permanent kmaps:
         */
        vaddr = PKMAP_BASE;
-       fixrange_init(vaddr, vaddr + PAGE_SIZE*LAST_PKMAP, pgd_base);
+       fixrange_init(vaddr, vaddr + PAGE_SIZE*LAST_PKMAP, swapper_pg_dir);
 
        pgd = swapper_pg_dir + __pgd_offset(vaddr);
        pmd = pmd_offset(pgd, vaddr);

_


-- 
In theory, practice and theory are the same, but in practice they 
are different -- Larry McVoy

<Prev in Thread] Current Thread [Next in Thread>
  • [PATCH]: remove pgd_base, Juan Quintela <=