Annotate vital static, dynamic information into meminspect for debugging: - mem_section (static) - section (dynamic) - mem_section_usage(dynamic)
meminspect uses a different API to annotate variables for inspection, and information about these variables is stored in the inspection table. Co-developed-by: Eugen Hristev <[email protected]> Signed-off-by: Eugen Hristev <[email protected]> Signed-off-by: Mukesh Ojha <[email protected]> --- mm/sparse.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/mm/sparse.c b/mm/sparse.c index dfabe554adf8..38beae2d4294 100644 --- a/mm/sparse.c +++ b/mm/sparse.c @@ -15,6 +15,7 @@ #include <linux/swapops.h> #include <linux/bootmem_info.h> #include <linux/vmstat.h> +#include <linux/meminspect.h> #include "internal.h" #include <asm/dma.h> @@ -30,6 +31,7 @@ struct mem_section mem_section[NR_SECTION_ROOTS][SECTIONS_PER_ROOT] ____cacheline_internodealigned_in_smp; #endif EXPORT_SYMBOL(mem_section); +MEMINSPECT_SIMPLE_ENTRY(mem_section); #ifdef NODE_NOT_IN_PAGE_FLAGS /* @@ -253,6 +255,7 @@ static void __init memblocks_present(void) size = sizeof(struct mem_section *) * NR_SECTION_ROOTS; align = 1 << (INTERNODE_CACHE_SHIFT); mem_section = memblock_alloc_or_panic(size, align); + meminspect_register_va(mem_section, size); } #endif @@ -343,6 +346,9 @@ sparse_early_usemaps_alloc_pgdat_section(struct pglist_data *pgdat, limit = MEMBLOCK_ALLOC_ACCESSIBLE; goto again; } + + meminspect_register_va(usage, size); + return usage; } -- 2.50.1
