fstab-generator: handle systemd.swap= command-line argument

[thirdparty/systemd.git] / src / fstab-generator / fstab-generator.c

diff --git a/src/fstab-generator/fstab-generator.c b/src/fstab-generator/fstab-generator.c
index 5a0a871759ed467df723546f99e5351a1c794b9a..08c7b76dbaeb9378772f4b02289398aa8b22bc9e 100644 (file)
--- a/src/fstab-generator/fstab-generator.c
+++ b/src/fstab-generator/fstab-generator.c
@@ -40,6 +40,7 @@ typedef enum MountpointFlags {
 static const char *arg_dest = NULL;
 static const char *arg_dest_late = NULL;
 static bool arg_fstab_enabled = true;
+static bool arg_swap_enabled = true;
 static char *arg_root_what = NULL;
 static char *arg_root_fstype = NULL;
 static char *arg_root_options = NULL;
@@ -98,6 +99,11 @@ static int add_swap(
         assert(what);
         assert(me);
 
+        if (!arg_swap_enabled) {
+                log_info("Swap unit generation disabled on kernel command line, ignoring fstab swap entry for %s.", what);
+                return 0;
+        }
+
         if (access("/proc/swaps", F_OK) < 0) {
                 log_info("Swap not supported, ignoring fstab swap entry for %s.", what);
                 return 0;
@@ -896,6 +902,14 @@ static int parse_proc_cmdline_item(const char *key, const char *value, void *dat
                                 arg_volatile_mode = m;
                 } else
                         arg_volatile_mode = VOLATILE_YES;
+
+        } else if (streq(key, "systemd.swap")) {
+
+                r = value ? parse_boolean(value) : 1;
+                if (r < 0)
+                        log_warning("Failed to parse systemd.swap switch %s. Ignoring.", value);
+                else
+                        arg_swap_enabled = r;
         }
 
         return 0;