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From 109a5a35d8482f43c7d779df3b7d10bf16d5f31b Mon Sep 17 00:00:00 2001
From: Petr Uzel <petr.uzel@suse.cz>
Date: Mon, 26 Sep 2011 17:21:01 +0200
Subject: [PATCH 48/48] parted: add resizepart command
Add resizepart command to resize ( change the end position ) an existing
partition. Note that it does nothing to a filesystem in the partition.
(cherry picked from commit 21c58e17c473ea8ef31a18d03348eb2381c0f36c)
Resolves: rhbz#1423357
---
NEWS | 1 +
parted/parted.c | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
2 files changed, 77 insertions(+), 1 deletion(-)
diff --git a/NEWS b/NEWS
index d1a6f58..62d6381 100644
--- a/NEWS
+++ b/NEWS
@@ -3,6 +3,7 @@ GNU parted NEWS -*- outline -*-
* Noteworthy changes in release 3.1-29 (2017-04-11) [RHEL7.4]
Parted now recognizes NVMe devices
+ Add resizepart command to resize a partition
* Noteworthy changes in release 3.1-18 (2014-08-12) [RHEL7.1]
diff --git a/parted/parted.c b/parted/parted.c
index d4a397b..d64b0b8 100644
--- a/parted/parted.c
+++ b/parted/parted.c
@@ -152,6 +152,9 @@ static const char* fs_type_msg_start = N_("FS-TYPE is one of: ");
static const char* start_end_msg = N_("START and END are disk locations, such as "
"4GB or 10%. Negative values count from the end of the disk. "
"For example, -1s specifies exactly the last sector.\n");
+static const char* end_msg = N_("END is disk location, such as "
+ "4GB or 10%. Negative value counts from the end of the disk. "
+ "For example, -1s specifies exactly the last sector.\n");
static const char* state_msg = N_("STATE is one of: on, off\n");
static const char* device_msg = N_("DEVICE is usually /dev/hda or /dev/sda\n");
static const char* name_msg = N_("NAME is any word you want\n");
@@ -435,6 +438,21 @@ constraint_from_start_end (PedDevice* dev, PedGeometry* range_start,
range_start, range_end, 1, dev->length);
}
+
+static PedConstraint*
+constraint_from_start_end_fixed_start (PedDevice* dev, PedSector start_sector,
+ PedGeometry* range_end)
+{
+ PedGeometry range_start;
+ range_start.dev = dev;
+ range_start.start = start_sector;
+ range_start.end = start_sector;
+ range_start.length = 1;
+
+ return ped_constraint_new (ped_alignment_any, ped_alignment_any,
+ &range_start, range_end, 1, dev->length);
+}
+
void
help_on (char* topic)
{
@@ -1478,7 +1496,7 @@ error:
}
static int
-do_resize (PedDevice **dev, PedDisk** diskp)
+do_resize (PedDevice **dev)
{
ped_exception_throw (
PED_EXCEPTION_ERROR,
@@ -1488,6 +1506,63 @@ do_resize (PedDevice **dev, PedDisk** diskp)
}
static int
+do_resizepart (PedDevice** dev)
+{
+ PedDisk *disk;
+ PedPartition *part = NULL;
+ PedSector start, end, oldend;
+ PedGeometry *range_end = NULL;
+ PedConstraint* constraint;
+ int rc = 0;
+
+ disk = ped_disk_new (*dev);
+ if (!disk)
+ goto error;
+
+ if (ped_disk_is_flag_available(disk, PED_DISK_CYLINDER_ALIGNMENT))
+ if (!ped_disk_set_flag(disk, PED_DISK_CYLINDER_ALIGNMENT,
+ alignment == ALIGNMENT_CYLINDER))
+ goto error;
+
+ if (!command_line_get_partition (_("Partition number?"), disk, &part))
+ goto error;
+ if (!_partition_warn_busy (part))
+ goto error;
+
+ start = part->geom.start;
+ end = oldend = part->geom.end;
+ if (!command_line_get_sector (_("End?"), *dev, &end, &range_end, NULL))
+ goto error;
+ /* Do not move start of the partition */
+ constraint = constraint_from_start_end_fixed_start (*dev, start, range_end);
+ if (!ped_disk_set_partition_geom (disk, part, constraint,
+ start, end))
+ goto error_destroy_constraint;
+ /* warn when shrinking partition - might lose data */
+ if (part->geom.end < oldend)
+ if (ped_exception_throw (
+ PED_EXCEPTION_WARNING,
+ PED_EXCEPTION_YES_NO,
+ _("Shrinking a partition can cause data loss, " \
+ "are you sure you want to continue?")) != PED_EXCEPTION_YES)
+ goto error_destroy_constraint;
+ ped_disk_commit (disk);
+
+ if ((*dev)->type != PED_DEVICE_FILE)
+ disk_is_modified = 1;
+
+ rc = 1;
+
+error_destroy_constraint:
+ ped_constraint_destroy (constraint);
+error:
+ if (range_end != NULL)
+ ped_geometry_destroy (range_end);
+ return rc;
+}
+
+
+static int
do_rm (PedDevice** dev)
{
PedDisk* disk;
--
2.9.4