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mount: add new ForceUnmount= setting for mount units, mapping to umount(8)'s "-f" switch

This commit is contained in:
Barron Rulon 2016-08-27 10:27:49 -04:00
parent e520950a03
commit 4f8d40a9dc
5 changed files with 20 additions and 2 deletions
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11
man/systemd.mount.xml
View File

@ -364,6 +364,17 @@
off.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>ForceUnmount=</varname></term>
<listitem><para>Takes a boolean argument. If true, force an
unmount (in case of an unreachable NFS system).
This corresponds with
<citerefentry project='man-pages'><refentrytitle>umount</refentrytitle><manvolnum>8</manvolnum></citerefentry>'s
<parameter>-f</parameter> switch. Defaults to
off.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>DirectoryMode=</varname></term>
<listitem><para>Directories of mount points (and any parent

1
src/core/dbus-mount.c
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@ -117,6 +117,7 @@ const sd_bus_vtable bus_mount_vtable[] = {
SD_BUS_PROPERTY("DirectoryMode", "u", bus_property_get_mode, offsetof(Mount, directory_mode), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("SloppyOptions", "b", bus_property_get_bool, offsetof(Mount, sloppy_options), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("LazyUnmount", "b", bus_property_get_bool, offsetof(Mount, lazy_unmount), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("ForceUnmount", "b", bus_property_get_bool, offsetof(Mount, force_unmount), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("Result", "s", property_get_result, offsetof(Mount, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("UID", "u", NULL, offsetof(Unit, ref_uid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("GID", "u", NULL, offsetof(Unit, ref_gid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),

1
src/core/load-fragment-gperf.gperf.m4
View File

@ -356,6 +356,7 @@ Mount.TimeoutSec, config_parse_sec, 0,
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)
Mount.ForceUnmount, config_parse_bool, 0, offsetof(Mount, force_unmount)
EXEC_CONTEXT_CONFIG_ITEMS(Mount)m4_dnl
CGROUP_CONTEXT_CONFIG_ITEMS(Mount)m4_dnl
KILL_CONTEXT_CONFIG_ITEMS(Mount)m4_dnl

8
src/core/mount.c
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@ -678,7 +678,8 @@ static void mount_dump(Unit *u, FILE *f, const char *prefix) {
"%sFrom /proc/self/mountinfo: %s\n"
"%sFrom fragment: %s\n"
"%sDirectoryMode: %04o\n"
"%sLazyUnmount: %s\n",
"%sLazyUnmount: %s\n"
"%sForceUnmount: %s\n",
prefix, mount_state_to_string(m->state),
prefix, mount_result_to_string(m->result),
prefix, m->where,
@ -688,7 +689,8 @@ static void mount_dump(Unit *u, FILE *f, const char *prefix) {
prefix, yes_no(m->from_proc_self_mountinfo),
prefix, yes_no(m->from_fragment),
prefix, m->directory_mode,
prefix, yes_no(m->lazy_unmount));
prefix, yes_no(m->lazy_unmount),
prefix, yes_no(m->force_unmount));
if (m->control_pid > 0)
fprintf(f,
@ -850,6 +852,8 @@ static void mount_enter_unmounting(Mount *m) {
r = exec_command_set(m->control_command, UMOUNT_PATH, m->where, NULL);
if (r >= 0 && m->lazy_unmount)
r = exec_command_append(m->control_command, "-l", NULL);
if (r >= 0 && m->force_unmount)
r = exec_command_append(m->control_command, "-f", NULL);
if (r < 0)
goto fail;

1
src/core/mount.h
View File

@ -72,6 +72,7 @@ struct Mount {
bool sloppy_options;
bool lazy_unmount;
bool force_unmount;
MountResult result;
MountResult reload_result;