Merge pull request #11215 from poettering/gpt-auto-no-udev

gpt-auto-generator: don't wait for udev

src/gpt-auto-generator/gpt-auto-generator.c

@@ -518,7 +518,7 @@ static int enumerate_partitions(dev_t devnum) {
         if (r <= 0)
                 return r;
 
-        r = dissect_image(fd, NULL, 0, DISSECT_IMAGE_GPT_ONLY, &m);
+        r = dissect_image(fd, NULL, 0, DISSECT_IMAGE_GPT_ONLY|DISSECT_IMAGE_NO_UDEV, &m);
         if (r == -ENOPKG) {
                 log_debug_errno(r, "No suitable partition table found, ignoring.");
                 return 0;

src/shared/dissect-image.c

@@ -102,6 +102,8 @@ not_found:
 static bool device_is_mmc_special_partition(sd_device *d) {
         const char *sysname;
 
+        assert(d);
+
         if (sd_device_get_sysname(d, &sysname) < 0)
                 return false;
 
@@ -112,6 +114,8 @@ static bool device_is_mmc_special_partition(sd_device *d) {
 static bool device_is_block(sd_device *d) {
         const char *ss;
 
+        assert(d);
+
         if (sd_device_get_subsystem(d, &ss) < 0)
                 return false;
 
@@ -122,6 +126,9 @@ static int enumerator_for_parent(sd_device *d, sd_device_enumerator **ret) {
         _cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL;
         int r;
 
+        assert(d);
+        assert(ret);
+
         r = sd_device_enumerator_new(&e);
         if (r < 0)
                 return r;
@@ -145,6 +152,7 @@ static int wait_for_partitions_to_appear(
                 int fd,
                 sd_device *d,
                 unsigned num_partitions,
+                DissectImageFlags flags,
                 sd_device_enumerator **ret_enumerator) {
 
         _cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL;
@@ -152,6 +160,10 @@ static int wait_for_partitions_to_appear(
         unsigned n;
         int r;
 
+        assert(fd >= 0);
+        assert(d);
+        assert(ret_enumerator);
+
         r = enumerator_for_parent(d, &e);
         if (r < 0)
                 return r;
@@ -166,9 +178,11 @@ static int wait_for_partitions_to_appear(
                 if (device_is_mmc_special_partition(q))
                         continue;
 
-                r = device_wait_for_initialization(q, "block", NULL);
-                if (r < 0)
-                        return r;
+                if (!FLAGS_SET(flags, DISSECT_IMAGE_NO_UDEV)) {
+                        r = device_wait_for_initialization(q, "block", NULL);
+                        if (r < 0)
+                                return r;
+                }
 
                 n++;
         }
@@ -223,18 +237,26 @@ static int loop_wait_for_partitions_to_appear(
                 int fd,
                 sd_device *d,
                 unsigned num_partitions,
+                DissectImageFlags flags,
                 sd_device_enumerator **ret_enumerator) {
         _cleanup_(sd_device_unrefp) sd_device *device = NULL;
         int r;
 
+        assert(fd >= 0);
+        assert(d);
+        assert(ret_enumerator);
+
         log_debug("Waiting for device (parent + %d partitions) to appear...", num_partitions);
 
-        r = device_wait_for_initialization(d, "block", &device);
-        if (r < 0)
-                return r;
+        if (!FLAGS_SET(flags, DISSECT_IMAGE_NO_UDEV)) {
+                r = device_wait_for_initialization(d, "block", &device);
+                if (r < 0)
+                        return r;
+        } else
+                device = sd_device_ref(d);
 
         for (unsigned i = 0; i < N_DEVICE_NODE_LIST_ATTEMPTS; i++) {
-                r = wait_for_partitions_to_appear(fd, device, num_partitions, ret_enumerator);
+                r = wait_for_partitions_to_appear(fd, device, num_partitions, flags, ret_enumerator);
                 if (r != -EAGAIN)
                         return r;
         }
@@ -369,7 +391,7 @@ int dissect_image(
 
                         m->encrypted = streq_ptr(fstype, "crypto_LUKS");
 
-                        r = loop_wait_for_partitions_to_appear(fd, d, 0, &e);
+                        r = loop_wait_for_partitions_to_appear(fd, d, 0, flags, &e);
                         if (r < 0)
                                 return r;
 
@@ -394,7 +416,7 @@ int dissect_image(
         if (!pl)
                 return -errno ?: -ENOMEM;
 
-        r = loop_wait_for_partitions_to_appear(fd, d, blkid_partlist_numof_partitions(pl), &e);
+        r = loop_wait_for_partitions_to_appear(fd, d, blkid_partlist_numof_partitions(pl), flags, &e);
         if (r < 0)
                 return r;
 

src/shared/dissect-image.h

@@ -57,6 +57,7 @@ typedef enum DissectImageFlags {
         DISSECT_IMAGE_MOUNT_ROOT_ONLY     = 1 << 6,  /* Mount only the root partition */
         DISSECT_IMAGE_MOUNT_NON_ROOT_ONLY = 1 << 7,  /* Mount only non-root partitions */
         DISSECT_IMAGE_VALIDATE_OS         = 1 << 8,  /* Refuse mounting images that aren't identifyable as OS images */
+        DISSECT_IMAGE_NO_UDEV             = 1 << 9,  /* Don't wait for udev initializing things */
 } DissectImageFlags;
 
 struct DissectedImage {