add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/mm/percpu-stats.c
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..
@@ -1,10 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * mm/percpu-debug.c
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  *
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  * Copyright (C) 2017		Facebook Inc.
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- * Copyright (C) 2017		Dennis Zhou <dennisz@fb.com>
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- *
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- * This file is released under the GPLv2.
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+ * Copyright (C) 2017		Dennis Zhou <dennis@kernel.org>
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  *
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  * Prints statistics about the percpu allocator and backing chunks.
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  */
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@@ -35,11 +34,15 @@
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 {
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 	struct pcpu_chunk *chunk;
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 	int slot, max_nr_alloc;
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+	enum pcpu_chunk_type type;
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 	max_nr_alloc = 0;
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-	for (slot = 0; slot < pcpu_nr_slots; slot++)
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-		list_for_each_entry(chunk, &pcpu_slot[slot], list)
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-			max_nr_alloc = max(max_nr_alloc, chunk->nr_alloc);
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+	for (type = 0; type < PCPU_NR_CHUNK_TYPES; type++)
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+		for (slot = 0; slot < pcpu_nr_slots; slot++)
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+			list_for_each_entry(chunk, &pcpu_chunk_list(type)[slot],
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+					    list)
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+				max_nr_alloc = max(max_nr_alloc,
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+						   chunk->nr_alloc);
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 	return max_nr_alloc;
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 }
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@@ -53,6 +56,7 @@
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 static void chunk_map_stats(struct seq_file *m, struct pcpu_chunk *chunk,
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 			    int *buffer)
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 {
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+	struct pcpu_block_md *chunk_md = &chunk->chunk_md;
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 	int i, last_alloc, as_len, start, end;
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 	int *alloc_sizes, *p;
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 	/* statistics */
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@@ -121,14 +125,17 @@
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 	P("nr_alloc", chunk->nr_alloc);
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 	P("max_alloc_size", chunk->max_alloc_size);
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 	P("empty_pop_pages", chunk->nr_empty_pop_pages);
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-	P("first_bit", chunk->first_bit);
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+	P("first_bit", chunk_md->first_free);
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 	P("free_bytes", chunk->free_bytes);
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-	P("contig_bytes", chunk->contig_bits * PCPU_MIN_ALLOC_SIZE);
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+	P("contig_bytes", chunk_md->contig_hint * PCPU_MIN_ALLOC_SIZE);
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 	P("sum_frag", sum_frag);
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 	P("max_frag", max_frag);
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 	P("cur_min_alloc", cur_min_alloc);
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 	P("cur_med_alloc", cur_med_alloc);
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 	P("cur_max_alloc", cur_max_alloc);
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+#ifdef CONFIG_MEMCG_KMEM
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+	P("memcg_aware", pcpu_is_memcg_chunk(pcpu_chunk_type(chunk)));
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+#endif
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 	seq_putc(m, '\n');
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 }
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@@ -137,6 +144,8 @@
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 	struct pcpu_chunk *chunk;
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 	int slot, max_nr_alloc;
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 	int *buffer;
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+	enum pcpu_chunk_type type;
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+	int nr_empty_pop_pages;
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 alloc_buffer:
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 	spin_lock_irq(&pcpu_lock);
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@@ -157,7 +166,11 @@
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 		goto alloc_buffer;
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 	}
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-#define PL(X) \
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+	nr_empty_pop_pages = 0;
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+	for (type = 0; type < PCPU_NR_CHUNK_TYPES; type++)
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+		nr_empty_pop_pages += pcpu_nr_empty_pop_pages[type];
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+
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+#define PL(X)								\
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 	seq_printf(m, "  %-20s: %12lld\n", #X, (long long int)pcpu_stats_ai.X)
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 	seq_printf(m,
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@@ -188,7 +201,7 @@
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 	PU(nr_max_chunks);
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 	PU(min_alloc_size);
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 	PU(max_alloc_size);
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-	P("empty_pop_pages", pcpu_nr_empty_pop_pages);
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+	P("empty_pop_pages", nr_empty_pop_pages);
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 	seq_putc(m, '\n');
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 #undef PU
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@@ -202,18 +215,18 @@
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 		chunk_map_stats(m, pcpu_reserved_chunk, buffer);
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 	}
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-	for (slot = 0; slot < pcpu_nr_slots; slot++) {
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-		list_for_each_entry(chunk, &pcpu_slot[slot], list) {
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-			if (chunk == pcpu_first_chunk) {
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-				seq_puts(m, "Chunk: <- First Chunk\n");
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-				chunk_map_stats(m, chunk, buffer);
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-
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-
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-			} else {
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-				seq_puts(m, "Chunk:\n");
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-				chunk_map_stats(m, chunk, buffer);
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+	for (type = 0; type < PCPU_NR_CHUNK_TYPES; type++) {
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+		for (slot = 0; slot < pcpu_nr_slots; slot++) {
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+			list_for_each_entry(chunk, &pcpu_chunk_list(type)[slot],
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+					    list) {
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+				if (chunk == pcpu_first_chunk) {
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+					seq_puts(m, "Chunk: <- First Chunk\n");
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+					chunk_map_stats(m, chunk, buffer);
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+				} else {
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+					seq_puts(m, "Chunk:\n");
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+					chunk_map_stats(m, chunk, buffer);
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+				}
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 			}
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-
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 		}
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 	}
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