parted/parted-2.3-lpn.patch

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From 763d9aca0fd5c79c46243774c17b562013a93418 Mon Sep 17 00:00:00 2001
From: Brian C. Lane <bcl@redhat.com>
Date: Fri, 17 Sep 2010 09:21:24 -0700
Subject: [PATCH] Handle syncing partition changes when using blkext majors (#634980)
Also remove unused _device_get_partition_range function
---
libparted/arch/linux.c | 37 ++++---------------------------------
1 files changed, 4 insertions(+), 33 deletions(-)
diff --git a/libparted/arch/linux.c b/libparted/arch/linux.c
index 38f4e31..225d06b 100644
--- a/libparted/arch/linux.c
+++ b/libparted/arch/linux.c
@@ -2391,35 +2391,6 @@ _blkpg_remove_partition (PedDisk* disk, int n)
}
/*
- * The number of partitions that a device can have depends on the kernel.
- * If we don't find this value in /sys/block/DEV/range, we will use our own
- * value.
- */
-static unsigned int
-_device_get_partition_range(PedDevice* dev)
-{
- int range, r;
- char path[128];
- FILE* fp;
- bool ok;
-
- r = snprintf(path, sizeof(path), "/sys/block/%s/range",
- last_component(dev->path));
- if (r < 0 || r >= sizeof(path))
- return MAX_NUM_PARTS;
-
- fp = fopen(path, "r");
- if (!fp)
- return MAX_NUM_PARTS;
-
- ok = fscanf(fp, "%d", &range) == 1;
- fclose(fp);
-
- /* (range <= 0) is none sense.*/
- return ok && range > 0 ? range : MAX_NUM_PARTS;
-}
-
-/*
* Sync the partition table in two step process:
* 1. Remove all of the partitions from the kernel's tables, but do not attempt
* removal of any partition for which the corresponding ioctl call fails.
@@ -2441,10 +2412,10 @@ _disk_sync_part_table (PedDisk* disk)
int lpn;
/* lpn = largest partition number. */
- if (ped_disk_get_max_supported_partition_count(disk, &lpn))
- lpn = PED_MIN(lpn, _device_get_partition_range(disk->dev));
- else
- lpn = _device_get_partition_range(disk->dev);
+ if (!ped_disk_get_max_supported_partition_count(disk, &lpn))
+ lpn = 256; /* HDG: not pretty but there is no other way
+ as we must make sure any removed partitions
+ actually get removed from the kernels view */
/* Its not possible to support largest_partnum < 0.
* largest_partnum == 0 would mean does not support partitions.
--
1.7.2.2