systemd/0057-Allow-TimeoutSec-0-to-work-as-documented-in-mount-un.patch
Zbigniew Jędrzejewski-Szmek f4a67616bd Backport a bunch of fixes
2017-06-15 10:26:56 -04:00

82 lines
5.8 KiB
Diff

From a28e8d4e77d1bbca7f0b13c6a2eebc4883ba1123 Mon Sep 17 00:00:00 2001
From: NeilBrown <neil@brown.name>
Date: Tue, 23 May 2017 17:42:26 +1000
Subject: [PATCH] Allow TimeoutSec=0 to work as documented in mount units and
elsewhere (#6013)
Since commit 36c16a7cdd6c ("core: rework unit timeout handling, and add
new setting RuntimeMaxSec=") TimeoutSec=0 in mount units has
cause the mount to timeout immediately instead of never as documented.
There is a similar problem with Socket.TimeoutSec and Swap.TimeoutSec.
These are easily fixed using config_parse_sec_fix_0().
Automount.TimeoutIdleSec looks like it could have the same problem,
but doesn't because the kernel treats '0' as 'no timeout'.
It handle USEC_INFINITY correctly only because that constant has
the value '-1', and when round up, it becomes zero.
To avoid possible confusion, use config_parse_sec_fix_0() as well, and
explicitly handle USEC_INFINITY.
(cherry picked from commit 2d79a0bbb9f651656384a0a86ed814e6306fb5dd)
---
src/core/automount.c | 7 +++++--
src/core/load-fragment-gperf.gperf.m4 | 8 ++++----
2 files changed, 9 insertions(+), 6 deletions(-)
diff --git a/src/core/automount.c b/src/core/automount.c
index 99e8047620..ccc113b598 100644
--- a/src/core/automount.c
+++ b/src/core/automount.c
@@ -415,8 +415,11 @@ static int autofs_set_timeout(int dev_autofs_fd, int ioctl_fd, usec_t usec) {
init_autofs_dev_ioctl(&param);
param.ioctlfd = ioctl_fd;
- /* Convert to seconds, rounding up. */
- param.timeout.timeout = (usec + USEC_PER_SEC - 1) / USEC_PER_SEC;
+ if (usec == USEC_INFINITY)
+ param.timeout.timeout = 0;
+ else
+ /* Convert to seconds, rounding up. */
+ param.timeout.timeout = (usec + USEC_PER_SEC - 1) / USEC_PER_SEC;
if (ioctl(dev_autofs_fd, AUTOFS_DEV_IOCTL_TIMEOUT, &param) < 0)
return -errno;
diff --git a/src/core/load-fragment-gperf.gperf.m4 b/src/core/load-fragment-gperf.gperf.m4
index cb9e6fea27..3f7cbaa0d0 100644
--- a/src/core/load-fragment-gperf.gperf.m4
+++ b/src/core/load-fragment-gperf.gperf.m4
@@ -298,7 +298,7 @@ Socket.ExecStartPre, config_parse_exec, SOCKET_EXEC
Socket.ExecStartPost, config_parse_exec, SOCKET_EXEC_START_POST, offsetof(Socket, exec_command)
Socket.ExecStopPre, config_parse_exec, SOCKET_EXEC_STOP_PRE, offsetof(Socket, exec_command)
Socket.ExecStopPost, config_parse_exec, SOCKET_EXEC_STOP_POST, offsetof(Socket, exec_command)
-Socket.TimeoutSec, config_parse_sec, 0, offsetof(Socket, timeout_usec)
+Socket.TimeoutSec, config_parse_sec_fix_0, 0, offsetof(Socket, timeout_usec)
Socket.SocketUser, config_parse_user_group, 0, offsetof(Socket, user)
Socket.SocketGroup, config_parse_user_group, 0, offsetof(Socket, group)
Socket.SocketMode, config_parse_mode, 0, offsetof(Socket, socket_mode)
@@ -362,7 +362,7 @@ Mount.What, config_parse_unit_string_printf, 0,
Mount.Where, config_parse_path, 0, offsetof(Mount, where)
Mount.Options, config_parse_unit_string_printf, 0, offsetof(Mount, parameters_fragment.options)
Mount.Type, config_parse_string, 0, offsetof(Mount, parameters_fragment.fstype)
-Mount.TimeoutSec, config_parse_sec, 0, offsetof(Mount, timeout_usec)
+Mount.TimeoutSec, config_parse_sec_fix_0, 0, offsetof(Mount, timeout_usec)
Mount.DirectoryMode, config_parse_mode, 0, offsetof(Mount, directory_mode)
Mount.SloppyOptions, config_parse_bool, 0, offsetof(Mount, sloppy_options)
Mount.LazyUnmount, config_parse_bool, 0, offsetof(Mount, lazy_unmount)
@@ -373,12 +373,12 @@ KILL_CONTEXT_CONFIG_ITEMS(Mount)m4_dnl
m4_dnl
Automount.Where, config_parse_path, 0, offsetof(Automount, where)
Automount.DirectoryMode, config_parse_mode, 0, offsetof(Automount, directory_mode)
-Automount.TimeoutIdleSec, config_parse_sec, 0, offsetof(Automount, timeout_idle_usec)
+Automount.TimeoutIdleSec, config_parse_sec_fix_0, 0, offsetof(Automount, timeout_idle_usec)
m4_dnl
Swap.What, config_parse_path, 0, offsetof(Swap, parameters_fragment.what)
Swap.Priority, config_parse_int, 0, offsetof(Swap, parameters_fragment.priority)
Swap.Options, config_parse_unit_string_printf, 0, offsetof(Swap, parameters_fragment.options)
-Swap.TimeoutSec, config_parse_sec, 0, offsetof(Swap, timeout_usec)
+Swap.TimeoutSec, config_parse_sec_fix_0, 0, offsetof(Swap, timeout_usec)
EXEC_CONTEXT_CONFIG_ITEMS(Swap)m4_dnl
CGROUP_CONTEXT_CONFIG_ITEMS(Swap)m4_dnl
KILL_CONTEXT_CONFIG_ITEMS(Swap)m4_dnl