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mm: memblock: Add more debug logs

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memblock_alloc is not giving information of owner of the memblock_reserve,
when we pass through command line "memblock=debug".
Below information is not enough for memory statistics.
for example:
[    0.000000] memblock_reserve: [0x000000013fbf8000-0x000000013fbf8fff] memblock_alloc+0x50/0x60.

To enhance the memblokc_dbg information or to get the exact owner of the
memblock_reserve added debug logs in different memblock alloc functions,
which is helpful for memory statistics.
After adding logs:
[    0.000000] memblock_alloc: size: 4096 align: 4096 early_pgtable_alloc+0x18/0x98.
[    0.000000] memblock_reserve: [0x000000013fbf9000-0x000000013fbf9fff] memblock_alloc+0x50/0x60.

Change-Id: Ibc9603f71fe3150af67398658d04c34f824b47e1
Signed-off-by: Faiyaz Mohammed <faiyazm@codeaurora.org>
This commit is contained in:
Faiyaz Mohammed 2019-10-09 11:38:35 +05:30
commit 7b5c8878ce
2 changed files with 7 additions and 0 deletions
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3
include/linux/memblock.h
View file

@ -367,6 +367,9 @@ void *memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align,
static inline void * __init memblock_alloc(phys_addr_t size, phys_addr_t align)
{
memblock_dbg("%s: %llu bytes align=0x%llx %pS\n",
__func__, (u64)size, (u64)align, (void *)_RET_IP_);
return memblock_alloc_try_nid(size, align, MEMBLOCK_LOW_LIMIT,
MEMBLOCK_ALLOC_ACCESSIBLE, NUMA_NO_NODE);
}

4
mm/memblock.c
View file

@ -1413,6 +1413,10 @@ 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);
}