Skip to content

Commit

Permalink
---
Browse files Browse the repository at this point in the history
yaml
---
r: 356537
b: refs/heads/master
c: fb06bc8
h: refs/heads/master
i:
  356535: 518e0d4
v: v3
  • Loading branch information
Tang Chen authored and Linus Torvalds committed Feb 24, 2013
1 parent f0f292c commit fdfa022
Show file tree
Hide file tree
Showing 3 changed files with 19 additions and 2 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: 42f47e27e761fee07da69e04612ec7dd0d490edd
refs/heads/master: fb06bc8e5f42f38c011de0e59481f464a82380f6
1 change: 1 addition & 0 deletions trunk/include/linux/memblock.h
Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,7 @@ struct memblock {

extern struct memblock memblock;
extern int memblock_debug;
extern struct movablemem_map movablemem_map;

#define memblock_dbg(fmt, ...) \
if (memblock_debug) printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
Expand Down
18 changes: 17 additions & 1 deletion trunk/mm/memblock.c
Original file line number Diff line number Diff line change
Expand Up @@ -101,6 +101,7 @@ phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t start,
{
phys_addr_t this_start, this_end, cand;
u64 i;
int curr = movablemem_map.nr_map - 1;

/* pump up @end */
if (end == MEMBLOCK_ALLOC_ACCESSIBLE)
Expand All @@ -114,13 +115,28 @@ phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t start,
this_start = clamp(this_start, start, end);
this_end = clamp(this_end, start, end);

if (this_end < size)
restart:
if (this_end <= this_start || this_end < size)
continue;

for (; curr >= 0; curr--) {
if ((movablemem_map.map[curr].start_pfn << PAGE_SHIFT)
< this_end)
break;
}

cand = round_down(this_end - size, align);
if (curr >= 0 &&
cand < movablemem_map.map[curr].end_pfn << PAGE_SHIFT) {
this_end = movablemem_map.map[curr].start_pfn
<< PAGE_SHIFT;
goto restart;
}

if (cand >= this_start)
return cand;
}

return 0;
}

Expand Down

0 comments on commit fdfa022

Please sign in to comment.