Commit 03927c8a authored Nov 25, 2015 by Arnd Bergmann Committed by Al Viro Dec 06, 2015

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>

parent 0125f504

fs/coredump.c

+5 −3

Original line number	Diff line number	Diff line
		@@ -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 */