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[v3,sl-b,4/6] mm: Make mem_obj_dump() vmalloc() dumps include start and length

Message ID 20201211012003.16473-4-paulmck@kernel.org (mailing list archive)
State New
Headers show
Series [v3,sl-b,1/6] mm: Add mem_dump_obj() to print source of memory block | expand

Commit Message

Paul E. McKenney Dec. 11, 2020, 1:20 a.m. UTC
From: "Paul E. McKenney" <paulmck@kernel.org>

This commit adds the starting address and number of pages to the vmalloc()
information dumped by way of vmalloc_dump_obj().

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: <linux-mm@kvack.org>
Reported-by: Andrii Nakryiko <andrii@kernel.org>
Suggested-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
 mm/vmalloc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series


diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 7421719..77b1100 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -3439,7 +3439,8 @@  bool vmalloc_dump_obj(void *object)
 	vm = find_vm_area(objp);
 	if (!vm)
 		return false;
-	pr_cont(" vmalloc allocated at %pS\n", vm->caller);
+	pr_cont(" %u-page vmalloc region starting at %#lx allocated at %pS\n",
+		vm->nr_pages, (unsigned long)vm->addr, vm->caller);
 	return true;