parted/revert-libparted-remove-now-worse-than-useless-_kern.patch

From 59627048c1b5b6e6aed9198bb11c397b3ad8cddd Mon Sep 17 00:00:00 2001
From: Petr Uzel <petr.uzel@suse.cz>
Date: Fri, 14 Feb 2014 09:18:32 +0100
Subject: [PATCH] Revert "libparted: remove now-worse-than-useless
 _kernel_reread_part_table"

This reverts commit 1223b9fc07859cb619c80dc057bd05458f9b5669.
---
 libparted/arch/linux.c |   30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

Index: parted-3.1/libparted/arch/linux.c
===================================================================
--- parted-3.1.orig/libparted/arch/linux.c
+++ parted-3.1/libparted/arch/linux.c
@@ -2897,6 +2897,34 @@ _dm_reread_part_table (PedDisk* disk)
 #endif
 
 static int
+_kernel_reread_part_table (PedDevice* dev)
+{
+        LinuxSpecific*  arch_specific = LINUX_SPECIFIC (dev);
+        int             retry_count = 9;
+
+        sync();
+        while (ioctl (arch_specific->fd, BLKRRPART)) {
+                retry_count--;
+                sync();
+                if (retry_count == 3)
+                        sleep(1); /* Pause to allow system to settle */
+
+                if (!retry_count) {
+                        ped_exception_throw (
+                                PED_EXCEPTION_WARNING,
+                                PED_EXCEPTION_IGNORE,
+                        _("WARNING: the kernel failed to re-read the partition "
+                          "table on %s (%s).  As a result, it may not "
+                          "reflect all of your changes until after reboot."),
+                                dev->path, strerror (errno));
+                        return 0;
+                }
+        }
+
+        return 1;
+}
+
+static int
 _have_blkpg ()
 {
         static int have_blkpg = -1;
@@ -2931,6 +2959,8 @@ linux_disk_commit (PedDisk* disk)
 			  ok = 0;
 		}
 
+		if (!_kernel_reread_part_table (disk->dev))
+			ok = 0;
                 return ok;
         }