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[PATCH] Cleanup bootmem allocator and fix alloc_bootmem_low

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Patch cleans up the alloc_bootmem fix for swiotlb.  Patch removes
alloc_bootmem_*_limit api and fixes alloc_boot_*low api to do the right
thing -- allocate from low32 memory.

Signed-off-by: Ravikiran Thirumalai <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Ravikiran G Thirumalai 2006-01-06 00:11:01 -08:00 • committed by Linus Torvalds
commit 008857c1a4
3 changed files with 44 additions and 43 deletions
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38
mm/bootmem.c
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@ -393,15 +393,14 @@ unsigned long __init free_all_bootmem (void)
return(free_all_bootmem_core(NODE_DATA(0)));
}
void * __init __alloc_bootmem_limit (unsigned long size, unsigned long align, unsigned long goal,
unsigned long limit)
void * __init __alloc_bootmem(unsigned long size, unsigned long align, unsigned long goal)
{
pg_data_t *pgdat = pgdat_list;
void *ptr;
for_each_pgdat(pgdat)
if ((ptr = __alloc_bootmem_core(pgdat->bdata, size,
align, goal, limit)))
align, goal, 0)))
return(ptr);
/*
@ -413,15 +412,40 @@ void * __init __alloc_bootmem_limit (unsigned long size, unsigned long align, un
}
void * __init __alloc_bootmem_node_limit (pg_data_t *pgdat, unsigned long size, unsigned long align,
unsigned long goal, unsigned long limit)
void * __init __alloc_bootmem_node(pg_data_t *pgdat, unsigned long size, unsigned long align,
unsigned long goal)
{
void *ptr;
ptr = __alloc_bootmem_core(pgdat->bdata, size, align, goal, limit);
ptr = __alloc_bootmem_core(pgdat->bdata, size, align, goal, 0);
if (ptr)
return (ptr);
return __alloc_bootmem_limit(size, align, goal, limit);
return __alloc_bootmem(size, align, goal);
}
#define LOW32LIMIT 0xffffffff
void * __init __alloc_bootmem_low(unsigned long size, unsigned long align, unsigned long goal)
{
pg_data_t *pgdat = pgdat_list;
void *ptr;
for_each_pgdat(pgdat)
if ((ptr = __alloc_bootmem_core(pgdat->bdata, size,
align, goal, LOW32LIMIT)))
return(ptr);
/*
* Whoops, we cannot satisfy the allocation request.
*/
printk(KERN_ALERT "low bootmem alloc of %lu bytes failed!\n", size);
panic("Out of low memory");
return NULL;
}
void * __init __alloc_bootmem_low_node(pg_data_t *pgdat, unsigned long size,
unsigned long align, unsigned long goal)
{
return __alloc_bootmem_core(pgdat->bdata, size, align, goal, LOW32LIMIT);
}