This patch changes the use of struct timespec in
dccp_probe to use struct timespec64 instead. timespec uses a 32-bit
seconds field which will overflow in the year 2038 and beyond. timespec64
uses a 64-bit seconds field. Note that the correctness of the code isn't
changed, since the original code only uses the timestamps to compute a
small elapsed interval. This patch is part of a larger attempt to remove
instances of 32-bit timekeeping structures (timespec, timeval, time_t)
from the kernel so it is easier to identify where the real 2038 issues
are.
Signed-off-by: Tina Ruchandani <ruchandani.tina@xxxxxxxxx>
---
net/dccp/probe.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/net/dccp/probe.c b/net/dccp/probe.c
index d8346d0..3d3fda0 100644
--- a/net/dccp/probe.c
+++ b/net/dccp/probe.c
@@ -30,6 +30,7 @@
#include <linux/module.h>
#include <linux/kfifo.h>
#include <linux/vmalloc.h>
+#include <linux/time64.h>
#include <linux/gfp.h>
#include <net/net_namespace.h>
@@ -47,20 +48,20 @@ static struct {
struct kfifo fifo;
spinlock_t lock;
wait_queue_head_t wait;
- struct timespec tstart;
+ struct timespec64 tstart;
} dccpw;
static void printl(const char *fmt, ...)
{
va_list args;
int len;
- struct timespec now;
+ struct timespec64 now;
char tbuf[256];
va_start(args, fmt);
- getnstimeofday(&now);
+ getnstimeofday64(&now);
- now = timespec_sub(now, dccpw.tstart);
+ now = timespec64_sub(now, dccpw.tstart);
len = sprintf(tbuf, "%lu.%06lu ",
(unsigned long) now.tv_sec,
@@ -110,7 +111,7 @@ static struct jprobe dccp_send_probe = {
static int dccpprobe_open(struct inode *inode, struct file *file)
{
kfifo_reset(&dccpw.fifo);
- getnstimeofday(&dccpw.tstart);
+ getnstimeofday64(&dccpw.tstart);
return 0;
}
--
1.9.1
--
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