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authorLennart Poettering <lennart@poettering.net>2013-03-25 22:04:40 +0100
committerLennart Poettering <lennart@poettering.net>2013-03-25 22:04:40 +0100
commite8d2f6cde0af86eece9118718ad0a8a19e1cffec (patch)
treed3d000294fa72e881f5d65e8f6546979f24a4f58 /src/core/mount.c
parenta69fe051b85865cad5df74f9f58915e36c4b1418 (diff)
units: introduce remote-fs-setup.target to pull in dependencies from remote mounts
This introduces remote-fs-setup.target independently of remote-fs-pre.target. The former is only for pulling things in, the latter only for ordering. The new semantics: remote-fs-setup.target: is pulled in automatically by all remote mounts. Shall be used to pull in other units that want to run when at least one remote mount is set up. Is not ordered against the actual mount units, in order to allow activation of its dependencies even 'a posteriori', i.e. when a mount is established outside of systemd and is only picked up by it. remote-fs-pre.target: needs to be pulled in automatically by the implementing service, is otherwise not part of the initial transaction. This is ordered before all remote mount units. A service that wants to be pulled in and run before all remote mounts should hence have: a) WantedBy=remote-fs-setup.target -- so that it is pulled in b) Wants=remote-fs-pre.target + Before=remote-fs-pre.target -- so that it is ordered before the mount point, normally.
Diffstat (limited to 'src/core/mount.c')
-rw-r--r--src/core/mount.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/src/core/mount.c b/src/core/mount.c
index 0adf04e9bf..c4074ebd2e 100644
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -441,7 +441,7 @@ static int mount_add_quota_links(Mount *m) {
static int mount_add_default_dependencies(Mount *m) {
int r;
MountParameters *p;
- const char *after;
+ const char *after, *setup;
assert(m);
@@ -456,15 +456,24 @@ static int mount_add_default_dependencies(Mount *m) {
if (path_equal(m->where, "/"))
return 0;
- if (mount_is_network(p))
+ if (mount_is_network(p)) {
after = SPECIAL_REMOTE_FS_PRE_TARGET;
- else
+ setup = SPECIAL_REMOTE_FS_SETUP_TARGET;
+ } else {
after = SPECIAL_LOCAL_FS_PRE_TARGET;
+ setup = NULL;
+ }
- r = unit_add_two_dependencies_by_name(UNIT(m), UNIT_WANTS, UNIT_AFTER, after, NULL, true);
+ r = unit_add_dependency_by_name(UNIT(m), UNIT_AFTER, after, NULL, true);
if (r < 0)
return r;
+ if (setup) {
+ r = unit_add_dependency_by_name(UNIT(m), UNIT_WANTS, setup, NULL, true);
+ if (r < 0)
+ return r;
+ }
+
r = unit_add_two_dependencies_by_name(UNIT(m), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_UMOUNT_TARGET, NULL, true);
if (r < 0)
return r;