Re: [PATCH v2] mm: memblock: add more debug logs

From: Mike Rapoport
Date: Mon Nov 16 2020 - 02:46:23 EST


On Mon, Nov 16, 2020 at 10:14:04AM +0530, Faiyaz Mohammed wrote:
> 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@xxxxxxxxxxxxxx>

Applied, thanks!