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authorArnd Bergmann <arnd@arndb.de>2015-11-25 16:22:25 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2015-12-06 21:17:17 -0500
commit03927c8acb63100046260711c06ba28b6b5936fb (patch)
treea9d112dd05a9baeb26500dcb085be2ed313b2d5c /fs/coredump.c
parent0125f504ed320826a78b43d636de957d703465a8 (diff)
downloadlwn-03927c8acb63100046260711c06ba28b6b5936fb.tar.gz
lwn-03927c8acb63100046260711c06ba28b6b5936fb.zip
coredump: Use 64bit time for unix time of coredump
struct timeval on 32-bit systems will have its tv_sec value overflow in year 2038 and beyond. Use a 64 bit value to print time of the coredump in seconds. ktime_get_real_seconds is chosen here for efficiency reasons. Suggested by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tina Ruchandani <ruchandani.tina@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/coredump.c')
-rw-r--r--fs/coredump.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/coredump.c b/fs/coredump.c
index 1777331eee76..b3c153ca435d 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -32,6 +32,7 @@
#include <linux/pipe_fs_i.h>
#include <linux/oom.h>
#include <linux/compat.h>
+#include <linux/timekeeping.h>
#include <asm/uaccess.h>
#include <asm/mmu_context.h>
@@ -232,9 +233,10 @@ static int format_corename(struct core_name *cn, struct coredump_params *cprm)
break;
/* UNIX time of coredump */
case 't': {
- struct timeval tv;
- do_gettimeofday(&tv);
- err = cn_printf(cn, "%lu", tv.tv_sec);
+ time64_t time;
+
+ time = ktime_get_real_seconds();
+ err = cn_printf(cn, "%lld", time);
break;
}
/* hostname */