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From e2b9f9051c8d9905b15af0f7fa79c85502370b25 Mon Sep 17 00:00:00 2001
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From: Brian C. Lane <bcl@redhat.com>
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Date: Fri, 3 Aug 2012 17:03:50 -0700
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Subject: [PATCH] libparted: preserve the uuid on dm partitions (#832145)
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* libparted/arch/linux.c (_dm_add_partition): Set the uuid if there was
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one.
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---
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libparted/arch/linux.c | 11 +++++++++++
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1 file changed, 11 insertions(+)
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diff --git a/libparted/arch/linux.c b/libparted/arch/linux.c
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index 37ddb5f..2c410a0 100644
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--- a/libparted/arch/linux.c
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+++ b/libparted/arch/linux.c
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@@ -2803,6 +2803,8 @@ _dm_add_partition (PedDisk* disk, PedPartition* part)
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{
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char* vol_name = NULL;
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const char* dev_name = NULL;
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+ char* vol_uuid = NULL;
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+ const char* dev_uuid = NULL;
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char* params = NULL;
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LinuxSpecific* arch_specific = LINUX_SPECIFIC (disk->dev);
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uint32_t cookie = 0;
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@@ -2820,6 +2822,7 @@ _dm_add_partition (PedDisk* disk, PedPartition* part)
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goto err;
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dev_name = dm_task_get_name (task);
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+ dev_uuid = dm_task_get_uuid (task);
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if (isdigit (dev_name[strlen (dev_name) - 1])) {
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if ( ! (vol_name = zasprintf ("%sp%d", dev_name, part->num)))
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@@ -2827,6 +2830,10 @@ _dm_add_partition (PedDisk* disk, PedPartition* part)
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} else if ( ! (vol_name = zasprintf ("%s%d", dev_name, part->num)))
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goto err;
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+ if ( dev_uuid && (strlen(dev_uuid) > 0) \
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+ && ! (vol_uuid = zasprintf ("part%d-%s", part->num, dev_uuid)))
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+ goto err;
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+
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/* Caution: dm_task_destroy frees dev_name. */
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dm_task_destroy (task);
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task = NULL;
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@@ -2840,6 +2847,8 @@ _dm_add_partition (PedDisk* disk, PedPartition* part)
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goto err;
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dm_task_set_name (task, vol_name);
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+ if (vol_uuid)
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+ dm_task_set_uuid (task, vol_uuid);
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dm_task_add_target (task, 0, part->geom.length,
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"linear", params);
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if (!dm_task_set_cookie(task, &cookie, 0))
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@@ -2850,6 +2859,7 @@ _dm_add_partition (PedDisk* disk, PedPartition* part)
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dm_task_update_nodes();
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dm_task_destroy(task);
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free(params);
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+ free(vol_uuid);
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free(vol_name);
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return 1;
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} else {
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@@ -2861,6 +2871,7 @@ err:
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if (task)
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dm_task_destroy (task);
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free (params);
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+ free (vol_uuid);
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free (vol_name);
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return 0;
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}
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--
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1.7.11.4
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