[systemd-commits] src/core src/fstab-generator

[Tom Gundersen]

 src/core/swap.c                       |    8 ++++++--
 src/fstab-generator/fstab-generator.c |   18 ++++++++++++++++--
 2 files changed, 22 insertions(+), 4 deletions(-)

New commits:
commit 4e82fe5213bedcb70e25c0270e516d5f2706d8c8
Author: Tom Gundersen <teg at jklm.no>
Date:   Mon Sep 16 01:08:32 2013 +0200

    swap: create .wants symlink to 'auto' swap devices
    
    As we load unit files lazily, we need to make sure something pulls in swap
    units that should be started automatically, otherwise the default dependencies
    will never be applied.
    
    This partially reinstates code removed in
    commit 64347fc2b983f33e7efb0fd2bb44e133fb9f30f4.
    
    Also don't order swap devices after swap.target when they are 'nofail'.

diff --git a/src/core/swap.c b/src/core/swap.c
index 3950860..76c7d45 100644
--- a/src/core/swap.c
+++ b/src/core/swap.c
@@ -220,8 +220,12 @@ static int swap_add_default_dependencies(Swap *s) {
         }
 
         if (!noauto) {
-                r = unit_add_two_dependencies_by_name_inverse(UNIT(s), UNIT_AFTER, (nofail ? UNIT_WANTS : UNIT_REQUIRES),
-                                                      SPECIAL_SWAP_TARGET, NULL, true);
+                if (nofail)
+                        r = unit_add_dependency_by_name_inverse(UNIT(s),
+                                UNIT_WANTS, SPECIAL_SWAP_TARGET, NULL, true);
+                else
+                        r = unit_add_two_dependencies_by_name_inverse(UNIT(s),
+                                UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SWAP_TARGET, NULL, true);
                 if (r < 0)
                         return r;
         }
diff --git a/src/fstab-generator/fstab-generator.c b/src/fstab-generator/fstab-generator.c
index 6ebe8aa..b73dfa4 100644
--- a/src/fstab-generator/fstab-generator.c
+++ b/src/fstab-generator/fstab-generator.c
@@ -66,6 +66,7 @@ static int mount_find_pri(struct mntent *me, int *ret) {
 static int add_swap(const char *what, struct mntent *me) {
         _cleanup_free_ char *name = NULL, *unit = NULL, *lnk = NULL, *device = NULL;
         _cleanup_fclose_ FILE *f = NULL;
+        bool noauto;
         int r, pri = -1;
 
         assert(what);
@@ -77,6 +78,8 @@ static int add_swap(const char *what, struct mntent *me) {
                 return pri;
         }
 
+        noauto = !!hasmntopt(me, "noauto");
+
         name = unit_name_from_path(what, ".swap");
         if (!name)
                 return log_oom();
@@ -97,8 +100,7 @@ static int add_swap(const char *what, struct mntent *me) {
         fprintf(f,
                 "# Automatically generated by systemd-fstab-generator\n\n"
                 "[Unit]\n"
-                "SourcePath=/etc/fstab\n"
-                "\n"
+                "SourcePath=/etc/fstab\n\n"
                 "[Swap]\n"
                 "What=%s\n",
                 what);
@@ -114,6 +116,18 @@ static int add_swap(const char *what, struct mntent *me) {
                 return -errno;
         }
 
+        if (!noauto) {
+                lnk = strjoin(arg_dest, "/" SPECIAL_SWAP_TARGET ".wants/", name, NULL);
+                if (!lnk)
+                        return log_oom();
+
+                mkdir_parents_label(lnk, 0755);
+                if (symlink(unit, lnk) < 0) {
+                        log_error("Failed to create symlink %s: %m", lnk);
+                        return -errno;
+                }
+        }
+
         return 0;
 }