From 109a5a35d8482f43c7d779df3b7d10bf16d5f31b Mon Sep 17 00:00:00 2001 From: Petr Uzel 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