diff options
Diffstat (limited to 'core/util-linux/hwclock-systz.patch')
| -rw-r--r-- | core/util-linux/hwclock-systz.patch | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/core/util-linux/hwclock-systz.patch b/core/util-linux/hwclock-systz.patch deleted file mode 100644 index 79ed1a5f3..000000000 --- a/core/util-linux/hwclock-systz.patch +++ /dev/null @@ -1,96 +0,0 @@ -From 46a8834c2eb9b0c37d92e30d1a262e41306cf36f Mon Sep 17 00:00:00 2001 -From: Tom Gundersen <teg@jklm.no> -Date: Wed, 19 Sep 2012 18:10:34 +0200 -Subject: [PATCH 1/2] hwclock: don't warp the systemtime if it is in UTC - -A sideeffect of 839be2ba6b44fa9dc927f081d547ebadec9de19c is that we now -warp the systemtime according to the timezone, on the first call of ---systz. This is not always the correct thing to do, and causes a -regression for us in Arch Linux. - -This is the correct thing to do if the RTC, and hence the systemtime is -set in localtime. However, if the systemtime is already in UTC we don't -want to touch it when we set the kernel timezone (which we still need to -do as e.g. FAT stores timestamps in localtime). - -An almost identical issue was also fixed in systemd commit -72edcff5db936e54cfc322d9392ec46e2428fd9b. - -Fixes: -Signed-off-by: Tom Gundersen <teg@jklm.no> ---- - sys-utils/hwclock.8 | 11 +++++++---- - sys-utils/hwclock.c | 17 +++++++++++++++-- - 2 files changed, 22 insertions(+), 6 deletions(-) - -diff --git a/sys-utils/hwclock.8 b/sys-utils/hwclock.8 -index 07d9fc0..5c599ad 100644 ---- a/sys-utils/hwclock.8 -+++ b/sys-utils/hwclock.8 -@@ -58,10 +58,12 @@ This is a good option to use in one of the system startup scripts. - Set the Hardware Clock to the current System Time. - .TP - .B \-\-systz --Reset the System Time based on the current timezone. -+Set the kernel's timezone and reset the System Time based on the current timezone. - --Also set the kernel's timezone value to the local timezone --as indicated by the TZ environment variable and/or -+The system time is only reset on the first call after boot. -+ -+The local timezone is taken to be what is -+indicated by the TZ environment variable and/or - .IR /usr/share/zoneinfo , - as - .BR tzset (3) -@@ -74,7 +76,8 @@ This is an alternate option to - .B \-\-hctosys - that does not read the hardware clock, and may be used in system startup - scripts for recent 2.6 kernels where you know the System Time contains --the Hardware Clock time. -+the Hardware Clock time. If the Hardware Clock is already in UTC, it is -+not reset. - .TP - .B \-\-adjust - Add or subtract time from the Hardware Clock to account for systematic -diff --git a/sys-utils/hwclock.c b/sys-utils/hwclock.c -index 5a4c87e..351ce1f 100644 ---- a/sys-utils/hwclock.c -+++ b/sys-utils/hwclock.c -@@ -772,7 +772,6 @@ static int set_system_clock_timezone(const bool universal, const bool testing) - struct timeval tv; - struct tm *broken; - int minuteswest; -- int rc; - - gettimeofday(&tv, NULL); - if (debug) { -@@ -818,10 +817,24 @@ static int set_system_clock_timezone(const bool universal, const bool testing) - ("Not setting system clock because running in test mode.\n")); - retcode = 0; - } else { -+ const struct timezone tz_utc = { 0, 0 }; - const struct timezone tz = { minuteswest, 0 }; - const struct timeval *tv_null = NULL; -+ int rc = 0; -+ -+ /* The first call to settimeofday after boot will assume the systemtime -+ * is in localtime, and adjust it according to the given timezone to -+ * compensate. If the systemtime is in fact in UTC, then this is wrong -+ * so we first do a dummy call to make sure the time is not shifted. -+ */ -+ if (universal) -+ rc = settimeofday(tv_null, &tz_utc); -+ -+ /* Now we set the real timezone. Due to the above dummy call, this will -+ * only warp the systemtime if the RTC is not in UTC. */ -+ if (!rc) -+ rc = settimeofday(tv_null, &tz); - -- rc = settimeofday(tv_null, &tz); - if (rc) { - if (errno == EPERM) { - warnx(_ --- -1.7.12.1 - |