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yaml
---
r: 88581
b: refs/heads/master
c: 48c508b
h: refs/heads/master
i:
  88579: 9ce80f5
v: v3
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Yinghai Lu authored and Ingo Molnar committed Apr 17, 2008
1 parent 500f94f commit e45f01b
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Showing 3 changed files with 14 additions and 12 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: ef9257668e3199f9566dc4a31f5292838bd99b49
refs/heads/master: 48c508b364324c35018284328b5b92c51d2b30e0
22 changes: 12 additions & 10 deletions trunk/arch/x86/kernel/e820_64.c
Original file line number Diff line number Diff line change
Expand Up @@ -95,7 +95,8 @@ void __init early_res_to_bootmem(void)
}

/* Check for already reserved areas */
static inline int bad_addr(unsigned long *addrp, unsigned long size)
static inline int
bad_addr(unsigned long *addrp, unsigned long size, unsigned long align)
{
int i;
unsigned long addr = *addrp, last;
Expand All @@ -105,7 +106,7 @@ static inline int bad_addr(unsigned long *addrp, unsigned long size)
for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) {
struct early_res *r = &early_res[i];
if (last >= r->start && addr < r->end) {
*addrp = addr = r->end;
*addrp = addr = round_up(r->end, align);
changed = 1;
goto again;
}
Expand Down Expand Up @@ -174,26 +175,27 @@ int __init e820_all_mapped(unsigned long start, unsigned long end,
* Find a free area with specified alignment in a specific range.
*/
unsigned long __init find_e820_area(unsigned long start, unsigned long end,
unsigned size, unsigned long align)
unsigned long size, unsigned long align)
{
int i;
unsigned long mask = ~(align - 1);

for (i = 0; i < e820.nr_map; i++) {
struct e820entry *ei = &e820.map[i];
unsigned long addr = ei->addr, last;
unsigned long addr, last;
unsigned long ei_last;

if (ei->type != E820_RAM)
continue;
addr = round_up(ei->addr, align);
ei_last = ei->addr + ei->size;
if (addr < start)
addr = start;
if (addr > ei->addr + ei->size)
addr = round_up(start, align);
if (addr > ei_last)
continue;
while (bad_addr(&addr, size) && addr+size <= ei->addr+ei->size)
while (bad_addr(&addr, size, align) && addr+size <= ei_last)
;
addr = (addr + align - 1) & mask;
last = addr + size;
if (last > ei->addr + ei->size)
if (last > ei_last)
continue;
if (last > end)
continue;
Expand Down
2 changes: 1 addition & 1 deletion trunk/include/asm-x86/e820_64.h
Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@

#ifndef __ASSEMBLY__
extern unsigned long find_e820_area(unsigned long start, unsigned long end,
unsigned size, unsigned long align);
unsigned long size, unsigned long align);
extern void add_memory_region(unsigned long start, unsigned long size,
int type);
extern void update_memory_range(u64 start, u64 size, unsigned old_type,
Expand Down

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