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authorCatalin Marinas <catalin.marinas@arm.com>2009-10-28 13:33:12 +0000
committerCatalin Marinas <catalin.marinas@arm.com>2009-10-28 17:07:54 +0000
commitfefdd336b2a2f7617e0c8a0777c731d9ed6454ae (patch)
treee70e4478b5713863da5fc7fbd29f4d5a63ed559b
parent0587da40be78d3704a48d3e9a619183891727f5f (diff)
downloadop-kernel-dev-fefdd336b2a2f7617e0c8a0777c731d9ed6454ae.zip
op-kernel-dev-fefdd336b2a2f7617e0c8a0777c731d9ed6454ae.tar.gz
kmemleak: Show the age of an unreferenced object
The jiffies shown for unreferenced objects isn't always meaningful to people debugging kernel memory leaks. This patch adds the age as well to the displayed information. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
-rw-r--r--mm/kmemleak.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index f06c092..ce79d91 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -346,11 +346,13 @@ static void print_unreferenced(struct seq_file *seq,
struct kmemleak_object *object)
{
int i;
+ unsigned int msecs_age = jiffies_to_msecs(jiffies - object->jiffies);
seq_printf(seq, "unreferenced object 0x%08lx (size %zu):\n",
object->pointer, object->size);
- seq_printf(seq, " comm \"%s\", pid %d, jiffies %lu\n",
- object->comm, object->pid, object->jiffies);
+ seq_printf(seq, " comm \"%s\", pid %d, jiffies %lu (age %d.%03ds)\n",
+ object->comm, object->pid, object->jiffies,
+ msecs_age / 1000, msecs_age % 1000);
hex_dump_object(seq, object);
seq_printf(seq, " backtrace:\n");
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