lvm2/SOURCES/0025-pvcreate-overwrite-partition-header-with-f.patch
2022-11-08 13:42:06 +00:00

142 lines
4.5 KiB
Diff

From a5c37afdca97d6565ea02bc4bc7d52f360823cd3 Mon Sep 17 00:00:00 2001
From: David Teigland <teigland@redhat.com>
Date: Wed, 8 Sep 2021 16:30:11 -0500
Subject: [PATCH 25/54] pvcreate: overwrite partition header with -f
$ pvcreate /dev/sdc
Cannot use /dev/sdc: device is partitioned
$ pvcreate -f /dev/sdc
Physical volume "/dev/sdc" successfully created.
---
lib/commands/toolcontext.h | 1 +
lib/filters/filter-partitioned.c | 3 +++
man/pvcreate.8_des | 7 ++++---
test/shell/test-partition.sh | 12 ++++++++++--
tools/toollib.c | 10 ++++++++++
5 files changed, 28 insertions(+), 5 deletions(-)
diff --git a/lib/commands/toolcontext.h b/lib/commands/toolcontext.h
index 356c79f8a..b83883fb8 100644
--- a/lib/commands/toolcontext.h
+++ b/lib/commands/toolcontext.h
@@ -201,6 +201,7 @@ struct cmd_context {
unsigned ignore_device_name_mismatch:1; /* skip updating devices file names */
unsigned backup_disabled:1; /* skip repeated debug message */
unsigned event_activation:1; /* whether event_activation is set */
+ unsigned filter_partitioned_skip:1; /* don't use filter-partitioned */
/*
* Devices and filtering.
diff --git a/lib/filters/filter-partitioned.c b/lib/filters/filter-partitioned.c
index 642553ef2..8f468a567 100644
--- a/lib/filters/filter-partitioned.c
+++ b/lib/filters/filter-partitioned.c
@@ -27,6 +27,9 @@ static int _passes_partitioned_filter(struct cmd_context *cmd, struct dev_filter
if (cmd->filter_nodata_only)
return 1;
+ if (cmd->filter_partitioned_skip)
+ return 1;
+
dev->filtered_flags &= ~DEV_FILTERED_PARTITIONED;
ret = dev_is_partitioned(cmd, dev);
diff --git a/man/pvcreate.8_des b/man/pvcreate.8_des
index 69bd133aa..4048eb71c 100644
--- a/man/pvcreate.8_des
+++ b/man/pvcreate.8_des
@@ -7,9 +7,10 @@ Use \fBvgcreate\fP(8) to create a new VG on the PV, or \fBvgextend\fP(8)
to add the PV to an existing VG. Use \fBpvremove\fP(8) to remove the LVM
disk label from the device.
.P
-The force option will create a PV without confirmation. Repeating the
-force option (\fB-ff\fP) will forcibly create a PV, overriding checks that
-normally prevent it, e.g. if the PV is already in a VG.
+The force option will create a PV without confirmation, and will overwrite
+partition headers. Repeating the force option (\fB-ff\fP) will override other
+checks that would normally prevent a pvcreate, e.g. if the PV is already in a
+VG.
.P
.B Metadata location, size, and alignment
.P
diff --git a/test/shell/test-partition.sh b/test/shell/test-partition.sh
index 0e92f00db..3a45f9089 100644
--- a/test/shell/test-partition.sh
+++ b/test/shell/test-partition.sh
@@ -16,7 +16,6 @@
#
-
SKIP_WITH_LVMPOLLD=1
LVM_TEST_CONFIG_DEVICES="types = [\"device-mapper\", 142]"
@@ -25,7 +24,7 @@ LVM_TEST_CONFIG_DEVICES="types = [\"device-mapper\", 142]"
which sfdisk || skip
-aux prepare_pvs 1 30
+aux prepare_pvs 2 30
pvs "$dev1"
@@ -33,3 +32,12 @@ pvs "$dev1"
echo "1 2" | sfdisk --force "$dev1"
not pvs "$dev1"
+
+wipefs -a "$dev2"
+echo "1 2" | sfdisk --force "$dev2"
+partprobe
+not pvcreate "$dev2"
+pvcreate -f "$dev2"
+pvs "$dev2"
+pvremove "$dev2"
+
diff --git a/tools/toollib.c b/tools/toollib.c
index d6f48aad2..80d3de57c 100644
--- a/tools/toollib.c
+++ b/tools/toollib.c
@@ -5243,6 +5243,10 @@ int pvcreate_each_device(struct cmd_context *cmd,
if (cmd->enable_devices_file && !pp->is_remove)
cmd->filter_deviceid_skip = 1;
+ /* pvcreate -f overwrites partitions */
+ if (pp->force && !pp->is_remove)
+ cmd->filter_partitioned_skip = 1;
+
log_debug("Scanning and filtering device args (%u).", dm_list_size(&scan_devs));
label_scan_devs(cmd, cmd->filter, &scan_devs);
@@ -5257,6 +5261,7 @@ int pvcreate_each_device(struct cmd_context *cmd,
}
}
cmd->filter_deviceid_skip = 0;
+ cmd->filter_partitioned_skip = 0;
/*
* Can the command continue if some specified devices were not found?
@@ -5469,6 +5474,9 @@ do_command:
if (cmd->enable_devices_file && !pp->is_remove)
cmd->filter_deviceid_skip = 1;
+ if (pp->force && !pp->is_remove)
+ cmd->filter_partitioned_skip = 1;
+
log_debug("Rescanning and filtering device args with exclusive open");
if (!label_scan_devs_excl(cmd, cmd->filter, &rescan_devs)) {
log_debug("Failed to rescan devs excl");
@@ -5482,7 +5490,9 @@ do_command:
dm_list_add(&pp->arg_fail, &pd->list);
}
}
+
cmd->filter_deviceid_skip = 0;
+ cmd->filter_partitioned_skip = 0;
if (dm_list_empty(&pp->arg_process) && dm_list_empty(&remove_duplicates)) {
log_debug("No devices to process.");
--
2.34.3