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authorDavid S. Miller <davem@davemloft.net>2012-11-10 18:32:51 -0500
committerDavid S. Miller <davem@davemloft.net>2012-11-10 18:32:51 -0500
commitd4185bbf62a5d8d777ee445db1581beb17882a07 (patch)
tree024b0badbd7c970b1983be6d8c345cc4a290cb31 /mm/memblock.c
parentc075b13098b399dc565b4d53f42047a8d40ed3ba (diff)
parenta375413311b39005ef281bfd71ae8f4e3df22e97 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c Minor conflict between the BCM_CNIC define removal in net-next and a bug fix added to net. Based upon a conflict resolution patch posted by Stephen Rothwell. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'mm/memblock.c')
-rw-r--r--mm/memblock.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/mm/memblock.c b/mm/memblock.c
index 931eef145af..625905523c2 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -930,6 +930,30 @@ int __init_memblock memblock_is_region_reserved(phys_addr_t base, phys_addr_t si
return memblock_overlaps_region(&memblock.reserved, base, size) >= 0;
}
+void __init_memblock memblock_trim_memory(phys_addr_t align)
+{
+ int i;
+ phys_addr_t start, end, orig_start, orig_end;
+ struct memblock_type *mem = &memblock.memory;
+
+ for (i = 0; i < mem->cnt; i++) {
+ orig_start = mem->regions[i].base;
+ orig_end = mem->regions[i].base + mem->regions[i].size;
+ start = round_up(orig_start, align);
+ end = round_down(orig_end, align);
+
+ if (start == orig_start && end == orig_end)
+ continue;
+
+ if (start < end) {
+ mem->regions[i].base = start;
+ mem->regions[i].size = end - start;
+ } else {
+ memblock_remove_region(mem, i);
+ i--;
+ }
+ }
+}
void __init_memblock memblock_set_current_limit(phys_addr_t limit)
{