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OpenCloudOS-Kernel
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sparc32: drop btfixup for check_pgt_cache 

It is a noop for srmmu - so use a define as sparc64 does.
And drop all sparc callers - no need to confuse our-self
be calling a noop function.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sam Ravnborg 2012-05-12 08:04:12 +00:00 committed by David S. Miller
parent 34d4accfe0
commit 3774348770
4 changed files with 1 additions and 27 deletions
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4
arch/sparc/include/asm/pgalloc_32.h
View File

@ -21,9 +21,7 @@ extern struct pgtable_cache_struct {
#define pgtable_cache_size (pgt_quicklists.pgtable_cache_sz)
#define pgd_cache_size (pgt_quicklists.pgd_cache_sz)
extern void check_pgt_cache(void);
BTFIXUPDEF_CALL(void, do_check_pgt_cache, int, int)
#define do_check_pgt_cache(low,high) BTFIXUP_CALL(do_check_pgt_cache)(low,high)
#define check_pgt_cache() do { } while (0)
BTFIXUPDEF_CALL(pgd_t *, get_pgd_fast, void)
#define get_pgd_fast() BTFIXUP_CALL(get_pgd_fast)()

2
arch/sparc/kernel/process_32.c
View File

@ -82,7 +82,6 @@ void cpu_idle(void)
cpu_relax();
}
schedule_preempt_disabled();
check_pgt_cache();
}
}
@ -105,7 +104,6 @@ void cpu_idle(void)
cpu_relax();
}
schedule_preempt_disabled();
check_pgt_cache();
}
}

16
arch/sparc/mm/init_32.c
View File

@ -285,22 +285,6 @@ unsigned long __init bootmem_init(unsigned long *pages_avail)
return max_pfn;
}
/*
* check_pgt_cache
*
* This is called at the end of unmapping of VMA (zap_page_range),
* to rescan the page cache for architecture specific things.
* Most architectures define check_pgt_cache empty.
*
* We simply copy the 2.4 implementation for now.
*/
static int pgt_cache_water[2] = { 25, 50 };
void check_pgt_cache(void)
{
do_check_pgt_cache(pgt_cache_water[0], pgt_cache_water[1]);
}
/*
* paging_init() sets up the page tables: We call the MMU specific
* init routine based upon the Sun model type on the Sparc.

6
arch/sparc/mm/srmmu.c
View File

@ -2122,11 +2122,6 @@ static void __init get_srmmu_type(void)
srmmu_is_bad();
}
/* don't laugh, static pagetables */
static void srmmu_check_pgt_cache(int low, int high)
{
}
extern unsigned long spwin_mmu_patchme, fwin_mmu_patchme,
tsetup_mmu_patchme, rtrap_mmu_patchme;
@ -2168,7 +2163,6 @@ void __init ld_mmu_srmmu(void)
#ifndef CONFIG_SMP
BTFIXUPSET_CALL(___xchg32, ___xchg32_sun4md, BTFIXUPCALL_SWAPG1G2);
#endif
BTFIXUPSET_CALL(do_check_pgt_cache, srmmu_check_pgt_cache, BTFIXUPCALL_NOP);
BTFIXUPSET_CALL(set_pte, srmmu_set_pte, BTFIXUPCALL_SWAPO0O1);