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authorFaiyaz Mohammed <faiyazm@codeaurora.org>2020-11-16 10:14:04 +0530
committerMike Rapoport <rppt@linux.ibm.com>2020-11-16 09:32:39 +0200
commitb5cf2d6c814829b623ccedce88d94e7bfe35cb2c (patch)
treeadb5dff3f0c4ad3be626ab06f00f57243147416b /mm/memblock.c
parent09162bc32c880a791c6c0668ce0745cf7958f576 (diff)
mm: memblock: add more debug logs
It is useful to know the exact caller of memblock_phys_alloc_range() to track early memory reservations during development. Currently, when memblock debugging is enabled, the allocations done with memblock_phys_alloc_range() are only reported at memblock_reserve(): [ 0.000000] memblock_reserve: [0x000000023fc6b000-0x000000023fc6bfff] memblock_alloc_range_nid+0xc0/0x188 Add memblock_dbg() to memblock_phys_alloc_range() to get details about its usage. For example: [ 0.000000] memblock_phys_alloc_range: 4096 bytes align=0x1000 from=0x0000000000000000 max_addr=0x0000000000000000 early_pgtable_alloc+0x24/0x178 [ 0.000000] memblock_reserve: [0x000000023fc6b000-0x000000023fc6bfff] memblock_alloc_range_nid+0xc0/0x188 Signed-off-by: Faiyaz Mohammed <faiyazm@codeaurora.org> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Diffstat (limited to 'mm/memblock.c')
-rw-r--r--mm/memblock.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/memblock.c b/mm/memblock.c
index b68ee86788af..db7a4f527abc 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1419,6 +1419,9 @@ phys_addr_t __init memblock_phys_alloc_range(phys_addr_t size,
phys_addr_t start,
phys_addr_t end)
{
+ memblock_dbg("%s: %llu bytes align=0x%llx from=%pa max_addr=%pa %pS\n",
+ __func__, (u64)size, (u64)align, &start, &end,
+ (void *)_RET_IP_);
return memblock_alloc_range_nid(size, align, start, end, NUMA_NO_NODE,
false);
}