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a248769183
parted/0060-libparted-mklabel-to-support-EAV-DASD.patch
Brian C. Lane a248769183 - Rebasing Fedora patches with upstream master since v3.1 release 
- Summary of important changes from upstream:
  - add support for a new Linux-specific GPT partition type code
  - partprobe: remove partitions when there is no partition table
  - libparted: refactor device-mapper partition sync code
  - libparted: remove extraneous blkpg add partition ped exception
  - libparted: don't probe every dm device in probe_all
- New Fedora changes:
  - libparted: Add Intel Rapid Start Technology partition flag.
  - libparted: Add UEFI System Partition flag.
  - libparted: Add hfs_esp partition flag to GPT.
  - libparted: Recognize btrfs filesystem
  - tests: Add btrfs and xfs to the fs probe test
2013-08-28 13:55:15 -07:00

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From 4e9468fe51b6183936a7564dc51da389b89fe15d Mon Sep 17 00:00:00 2001
From: Nageswara R Sastry <rnsastry@linux.vnet.ibm.com>
Date: Wed, 21 Aug 2013 16:36:08 -0700
Subject: [PATCH 60/69] libparted: mklabel to support EAV DASD
Extended Address Volume (EAV) DASDs are ECKD DASDs with more than
65520 cylinders. This patch adds support for mklabel to properly
handle unformatted EAV DASDs.
Signed-off-by: Nageswara R Sastry <rnsastry@linux.vnet.ibm.com>
---
include/parted/fdasd.in.h | 1 -
libparted/labels/fdasd.c | 92 +++++++++++++++++++++++++++++++++++++++++++++--
2 files changed, 90 insertions(+), 3 deletions(-)
diff --git a/include/parted/fdasd.in.h b/include/parted/fdasd.in.h
index b4e7dd1..3692596 100644
--- a/include/parted/fdasd.in.h
+++ b/include/parted/fdasd.in.h
@@ -288,7 +288,6 @@ void fdasd_get_geometry (const PedDevice *dev, fdasd_anchor_t *anc, int fd);
void fdasd_check_api_version (fdasd_anchor_t *anc, int fd);
int fdasd_check_volume (fdasd_anchor_t *anc, int fd);
int fdasd_write_labels (fdasd_anchor_t *anc, int fd);
-int fdasd_invalid_vtoc_pointer(fdasd_anchor_t *anc);
void fdasd_recreate_vtoc(fdasd_anchor_t *anc);
partition_info_t * fdasd_add_partition (fdasd_anchor_t *anc,
unsigned int start, unsigned int stop);
diff --git a/libparted/labels/fdasd.c b/libparted/labels/fdasd.c
index 2735b2a..b58b2be 100644
--- a/libparted/labels/fdasd.c
+++ b/libparted/labels/fdasd.c
@@ -581,6 +581,22 @@ fdasd_recreate_vtoc (fdasd_anchor_t *anc)
anc->vtoc_changed++;
}
+ /*
+ * initialize the VOL1 volume label
+ */
+static void
+fdasd_init_volume_label(fdasd_anchor_t *anc, int fd)
+{
+ volume_label_t *vlabel = anc->vlabel;
+
+ vtoc_volume_label_init(vlabel);
+ vtoc_volume_label_set_key(vlabel, "VOL1");
+ vtoc_volume_label_set_label(vlabel, "VOL1");
+
+ vtoc_set_cchhb(&vlabel->vtoc, VTOC_START_CC, VTOC_START_HH, 0x01);
+}
+
+
/*
* sets some important partition data
* (like used, start_trk, end_trk, len_trk)
@@ -769,6 +785,52 @@ fdasd_process_valid_vtoc (fdasd_anchor_t * anc, unsigned long b, int fd)
fdasd_update_partition_info (anc);
}
+static void
+fdasd_invalid_vtoc_pointer(fdasd_anchor_t *anc)
+{
+ PDEBUG
+ anc->formatted_cylinders = anc->hw_cylinders;
+ anc->fspace_trk = anc->formatted_cylinders * anc->geo.heads
+ - FIRST_USABLE_TRK;
+ vtoc_init_format4_label(anc->f4, USABLE_PARTITIONS,
+ anc->geo.cylinders, anc->formatted_cylinders,
+ anc->geo.heads, anc->geo.sectors,
+ anc->blksize, anc->dev_type);
+
+ vtoc_init_format5_label(anc->f5);
+ vtoc_init_format7_label(anc->f7);
+
+ vtoc_set_freespace(anc->f4, anc->f5, anc->f7, '+', anc->verbose,
+ FIRST_USABLE_TRK,
+ anc->formatted_cylinders * anc->geo.heads - 1,
+ anc->formatted_cylinders, anc->geo.heads);
+
+ vtoc_set_cchhb(&anc->vlabel->vtoc, VTOC_START_CC, VTOC_START_HH, 0x01);
+}
+
+/*
+ * we have a invalid FMT4 DSCB and therefore we will re-create the VTOC
+ */
+static void
+fdasd_process_invalid_vtoc(fdasd_anchor_t *anc)
+{
+ anc->formatted_cylinders = anc->hw_cylinders;
+ anc->fspace_trk = anc->formatted_cylinders * anc->geo.heads
+ - FIRST_USABLE_TRK;
+ vtoc_init_format4_label(anc->f4, USABLE_PARTITIONS,
+ anc->geo.cylinders, anc->formatted_cylinders,
+ anc->geo.heads, anc->geo.sectors,
+ anc->blksize, anc->dev_type);
+
+ vtoc_init_format5_label(anc->f5);
+ vtoc_init_format7_label(anc->f7);
+ vtoc_set_freespace(anc->f4, anc->f5, anc->f7, '+', anc->verbose,
+ FIRST_USABLE_TRK,
+ anc->formatted_cylinders * anc->geo.heads - 1,
+ anc->formatted_cylinders, anc->geo.heads);
+}
+
+
static int
fdasd_valid_vtoc_pointer(fdasd_anchor_t *anc, unsigned long b, int fd)
{
@@ -781,6 +843,8 @@ fdasd_valid_vtoc_pointer(fdasd_anchor_t *anc, unsigned long b, int fd)
if (anc->f4->DS4IDFMT == 0xf4) {
fdasd_process_valid_vtoc (anc, b, fd);
return 0;
+ } else {
+ fdasd_process_invalid_vtoc(anc);
}
if (strncmp(anc->vlabel->volkey, vtoc_ebcdic_enc("LNX1",str,4),4) == 0 ||
strncmp(anc->vlabel->volkey, vtoc_ebcdic_enc("CMS1",str,4),4) == 0)
@@ -817,13 +881,37 @@ fdasd_check_volume (fdasd_anchor_t *anc, int fd)
else
return 0;
} else {
- return 1;
+ fdasd_invalid_vtoc_pointer(anc);
}
} else if (strncmp (v->volkey, vtoc_ebcdic_enc ("LNX1", str, 4), 4) == 0 ||
strncmp (v->volkey, vtoc_ebcdic_enc ("CMS1", str, 4), 4) == 0) {
return 0;
- }
+ } else if (anc->FBA_layout == 1) {
+ /* Some times LDL formatted disks does not
+ contain any volume label */
+ return 1;
+ } else {
+ /* didn't find VOL1 volume label */
+ anc->formatted_cylinders = anc->hw_cylinders;
+ anc->fspace_trk = anc->formatted_cylinders * anc->geo.heads
+ - FIRST_USABLE_TRK;
+
+ fdasd_init_volume_label(anc, fd);
+ vtoc_init_format4_label(anc->f4, USABLE_PARTITIONS,
+ anc->geo.cylinders, anc->formatted_cylinders,
+ anc->geo.heads, anc->geo.sectors,
+ anc->blksize, anc->dev_type);
+
+ vtoc_init_format5_label(anc->f5);
+ vtoc_init_format7_label(anc->f7);
+
+ vtoc_set_freespace(anc->f4, anc->f5, anc->f7, '+',
+ anc->verbose, FIRST_USABLE_TRK,
+ anc->formatted_cylinders * anc->geo.heads - 1,
+ anc->formatted_cylinders, anc->geo.heads);
+ return 0;
+ }
return 1;
}
--
1.8.3.1
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