- Allow bigger snap radius if cylinders are used as units

(bnc#879387):
  - add: libparted-allow-bigger-snap-radius-if-cylinders-are-used.patch

OBS-URL: https://build.opensuse.org/package/show/Base:System/parted?expand=0&rev=94

libparted-allow-bigger-snap-radius-if-cylinders-are-used.patch

@@ -0,0 +1,43 @@
+From 2ef86fbe0fd8a6c4b48dd8edfbe41728a7343dac Mon Sep 17 00:00:00 2001
+From: Petr Uzel <petr.uzel@suse.cz>
+Date: Thu, 29 May 2014 14:50:31 +0200
+Subject: [PATCH] libparted: allow bigger snap radius if cylinders are used
+
+This is partial revert of commit
+
+   commit 18e727d492933ae1ebb16961e1df553f9299af8b
+   Author: Brian C. Lane <bcl@redhat.com>
+   Date:   Tue Jun 21 10:44:15 2011 -0700
+
+   libparted: fix snap radius so that it is using half (#665496)
+
+   The snap radius didn't match the documentation, it has been
+   using +/- unit size instead +/- 0.5 * unit (eg. 500KB for a MB
+   unit). This caused problems when specifying 1MB, 1GB, etc. as a
+   partition start or end resulting in partitions being created
+   that were nowhere near the specified size.
+
+Only revert to the old behavior if cylinders are used in order to
+give parted more flexibility when snapping the partition start/end.
+
+References: bnc#879387
+---
+ libparted/unit.c |    5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+Index: parted-3.1/libparted/unit.c
+===================================================================
+--- parted-3.1.orig/libparted/unit.c
++++ parted-3.1/libparted/unit.c
+@@ -540,7 +540,10 @@ ped_unit_parse_custom (const char* str,
+         }
+ 
+ 	unit_size = ped_unit_get_size (dev, unit);
+-	radius = (ped_div_round_up (unit_size, dev->sector_size) / 2) - 1;
++	if (unit == PED_UNIT_CYLINDER)
++		radius = ped_div_round_up (unit_size, dev->sector_size) - 1;
++	else
++		radius = (ped_div_round_up (unit_size, dev->sector_size) / 2) - 1;
+ 	if (radius < 0)
+ 		radius = 0;
+ 	/* If the user specifies units in a power of 2, e.g., 4MiB, as in

parted.changes

@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Thu May 29 12:55:29 UTC 2014 - puzel@suse.com
+
+- Allow bigger snap radius if cylinders are used as units
+  (bnc#879387):
+  - add: libparted-allow-bigger-snap-radius-if-cylinders-are-used.patch
+
 -------------------------------------------------------------------
 Tue May 20 10:27:17 UTC 2014 - puzel@suse.com
 

parted.spec

@@ -58,6 +58,7 @@ Patch30:        libparted-initialize-dasd-part-type.patch
 Patch31:        libparted-use-BLKRRPART-for-DASD.patch.patch
 Patch32:        libparted-copy-pmbr_boot-when-duplicating-GPT-disk.patch
 Patch33:        Fix-help-text-for-disk_-set-toggle.patch
+Patch34:        libparted-allow-bigger-snap-radius-if-cylinders-are-used.patch
 Patch100:       parted-fatresize-autoconf.patch
 Requires:       /sbin/udevadm
 BuildRequires:  check-devel
@@ -138,6 +139,7 @@ to develop applications that require these.
 %patch31 -p1
 %patch32 -p1
 %patch33 -p1
+%patch34 -p1
 %patch100 -p1
 
 %build