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fsck: properly hook in fsck everywhere, add special support for fsck'ing root dir

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This commit is contained in:
Lennart Poettering 2010-10-19 23:45:18 +02:00
parent 90bb85e140
commit a9e1f5ec36
9 changed files with 67 additions and 41 deletions
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11
Makefile.am
View File

@ -207,7 +207,9 @@ dist_systemunit_DATA = \
units/bluetooth.target \
units/smartcard.target \
units/systemd-readahead-done.timer \
units/systemd-tmpfiles-clean.timer
units/systemd-tmpfiles-clean.timer \
units/quotaon.service \
units/quotacheck.service
nodist_systemunit_DATA = \
units/sysinit.target \
@ -237,7 +239,9 @@ nodist_systemunit_DATA = \
units/halt.service \
units/poweroff.service \
units/reboot.service \
units/kexec.service
units/kexec.service \
units/fsck@.service \
units/fsck-root.service
dist_sessionunit_DATA = \
units/session/default.target \
@ -277,6 +281,8 @@ EXTRA_DIST = \
units/reboot.service.in \
units/kexec.service.in \
units/session/exit.service.in \
units/fsck@.service.in \
units/fsck-root.service.in \
systemd.pc.in
if TARGET_FEDORA
@ -678,7 +684,6 @@ systemd_tmpfiles_LDADD = \
systemd_fsck_SOURCES = \
src/fsck.c \
src/ac-power.c \
src/dbus-common.c
systemd_fsck_CFLAGS = \

3
src/automount.c
View File

@ -154,9 +154,6 @@ static int automount_add_default_dependencies(Automount *a) {
if (a->meta.manager->running_as == MANAGER_SYSTEM) {
if ((r = unit_add_dependency_by_name(UNIT(a), UNIT_AFTER, SPECIAL_FSCK_TARGET, NULL, true)) < 0)
return r;
if ((r = unit_add_two_dependencies_by_name(UNIT(a), UNIT_BEFORE, UNIT_CONFLICTED_BY, SPECIAL_UMOUNT_TARGET, NULL, true)) < 0)
return r;
}

77
src/fsck.c
View File

@ -25,10 +25,10 @@
#include <errno.h>
#include <unistd.h>
#include <libudev.h>
#include <dbus/dbus.h>
#include "util.h"
#include "ac-power.h"
#include "dbus-common.h"
#include "special.h"
@ -135,13 +135,16 @@ static void test_files(void) {
}
int main(int argc, char *argv[]) {
static const char * cmdline[7];
const char *cmdline[7];
int i = 0, r = EXIT_FAILURE, q;
pid_t pid;
siginfo_t status;
struct udev *udev = NULL;
struct udev_device *udev_device = NULL;
const char *device;
if (argc != 2) {
log_error("This program expects exactly one argument.");
if (argc > 2) {
log_error("This program expects one or no arguments.");
return EXIT_FAILURE;
}
@ -152,14 +155,38 @@ int main(int argc, char *argv[]) {
parse_proc_cmdline();
test_files();
if (!arg_force) {
if (arg_skip)
if (!arg_force && arg_skip)
return 0;
if (argc > 1)
device = argv[1];
else {
struct stat st;
/* Find root device */
if (stat("/", &st) < 0) {
log_error("Failed to stat() the root directory: %m");
goto finish;
}
/* Virtual root devices don't need an fsck */
if (major(st.st_dev) == 0)
return 0;
/* FIXME: only execute necessary fsck's if no AC power present */
if (on_ac_power() == 0) {
log_info("Running on battery power, skipping file system check.");
return 0;
if (!(udev = udev_new())) {
log_error("Out of memory");
goto finish;
}
if (!(udev_device = udev_device_new_from_devnum(udev, 'b', st.st_dev))) {
log_error("Failed to detect root device.");
goto finish;
}
if (!(device = udev_device_get_devnode(udev_device))) {
log_error("Failed to detect device node of root directory.");
goto finish;
}
}
@ -171,7 +198,7 @@ int main(int argc, char *argv[]) {
if (arg_force)
cmdline[i++] = "-f";
cmdline[i++] = argv[1];
cmdline[i++] = device;
cmdline[i++] = NULL;
if ((pid = fork()) < 0) {
@ -188,20 +215,16 @@ int main(int argc, char *argv[]) {
goto finish;
}
if (status.si_code == CLD_KILLED ||
status.si_code == CLD_DUMPED) {
log_error("fsck terminated by signal %s.", signal_to_string(status.si_status));
goto finish;
if (status.si_code != CLD_EXITED || (status.si_status & ~1)) {
} else if (status.si_code != CLD_EXITED) {
log_error("fsck failed due to unknown reason.");
goto finish;
}
if (status.si_code == CLD_KILLED || status.si_code == CLD_DUMPED)
log_error("fsck terminated by signal %s.", signal_to_string(status.si_status));
else if (status.si_code == CLD_EXITED)
log_error("fsck failed with error code %i.", status.si_status);
else
log_error("fsck failed due to unknown reason.");
if (status.si_status & ~1) {
log_error("fsck failed with error code %i.", status.si_status);
if (status.si_status & 2)
if (status.si_code == CLD_EXITED && status.si_status & 2)
/* System should be rebooted. */
start_target(SPECIAL_REBOOT_TARGET, false);
else
@ -211,9 +234,15 @@ int main(int argc, char *argv[]) {
} else
r = EXIT_SUCCESS;
if (status.si_status & 1)
if (status.si_code == CLD_EXITED && (status.si_status & 1))
touch("/dev/.systemd/quotacheck");
finish:
if (udev_device)
udev_device_unref(udev_device);
if (udev)
udev_unref(udev);
return r;
}

3
src/mount.c
View File

@ -365,6 +365,7 @@ static int mount_add_device_links(Mount *m) {
Unit *fsck;
/* Let's add in the fsck service */
/* aka SPECIAL_FSCK_SERVICE */
if (!(name = unit_name_from_path_instance("fsck", p->what, ".service")))
return -ENOMEM;
@ -393,7 +394,7 @@ static int mount_add_default_dependencies(Mount *m) {
if (m->meta.manager->running_as == MANAGER_SYSTEM &&
!path_equal(m->where, "/")) {
if ((r = unit_add_dependency_by_name(UNIT(m), UNIT_AFTER, SPECIAL_FSCK_TARGET, NULL, true)) < 0)
if ((r = unit_add_dependency_by_name(UNIT(m), UNIT_BEFORE, SPECIAL_QUOTACHECK_TARGET, NULL, true)) < 0)
return r;
if ((r = unit_add_two_dependencies_by_name(UNIT(m), UNIT_BEFORE, UNIT_CONFLICTED_BY, SPECIAL_UMOUNT_TARGET, NULL, true)) < 0)

1
src/quotacheck.c
View File

@ -91,7 +91,6 @@ int main(int argc, char *argv[]) {
test_files();
if (!arg_force) {
if (arg_skip)
return 0;

3
src/special.h
View File

@ -52,7 +52,8 @@
#define SPECIAL_BASIC_TARGET "basic.target"
#define SPECIAL_SOCKETS_TARGET "sockets.target"
#define SPECIAL_SYSINIT_TARGET "sysinit.target"
#define SPECIAL_FSCK_TARGET "fsck.target"
#define SPECIAL_FSCK_SERVICE "fsck@.service"
#define SPECIAL_QUOTACHECK_TARGET "quotacheck.target"
#define SPECIAL_RESCUE_TARGET "rescue.target"
#define SPECIAL_EXIT_TARGET "exit.target"
#define SPECIAL_EMERGENCY_TARGET "emergency.target"

2
units/remount-rootfs.service
View File

@ -9,7 +9,7 @@
Description=Remount Root FS
DefaultDependencies=no
Conflicts=shutdown.target
After=systemd-readahead-collect.service systemd-readahead-replay.service fsck.target
After=systemd-readahead-collect.service systemd-readahead-replay.service
Before=local-fs.target shutdown.target
[Service]

6
units/sysinit.target.m4
View File

@ -23,9 +23,3 @@ m4_dnl Hook in Arch's /etc/rc.sysinit
Requires=sysinit.service
After=sysinit.service
)m4_dnl
m4_ifdef(`TARGET_SUSE',`',
m4_ifdef(`TARGET_DEBIAN',`',
m4_dnl On Suse and Debian fsck.target is separate, everywhere else it is just an alias for sysinit.target
Names=fsck.target
)m4_dnl
)m4_dnl

2
units/systemd-update-utmp-runlevel.service.in
View File

@ -9,7 +9,7 @@
Description=Notify Audit System and Update UTMP about System Runlevel Changes
DefaultDependencies=no
Wants=local-fs.target sysinit.target
After=local-fs.target sysinit.target auditd.service runlevel1.target runlevel2.target runlevel3.target runlevel4.target runlevel5.target
After=local-fs.target sysinit.target auditd.service runlevel1.target runlevel2.target runlevel3.target runlevel4.target runlevel5.target systemd-tmpfiles-setup.service
Before=poweroff.service reboot.service halt.service killall.service
[Service]