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Subject: [PATCH] libparted: mklabel to support EDEV DASD
From: Nageswara R Sastry <rnsastry@linux.vnet.ibm.com>
Fixed Block Access (FBA) DASDs are mainframe-specific disk devices
which are layed out as a sequence of 512-byte sectors. This patch adds
support for mklabel to properly handle FBA devices.
Signed-off-by: Nageswara R Sastry <rnsastry@linux.vnet.ibm.com>
---
libparted/labels/fdasd.c | 24 +++++++++++++-----------
1 file changed, 13 insertions(+), 11 deletions(-)
--- a/libparted/labels/fdasd.c
+++ b/libparted/labels/fdasd.c
@@ -869,19 +869,21 @@ fdasd_check_volume (fdasd_anchor_t *anc,
vtoc_read_volume_label (fd, anc->label_pos, v);
if (strncmp(v->vollbl, vtoc_ebcdic_enc ("VOL1", str, 4), 4) == 0) {
- /* found VOL1 volume label */
- b = (cchhb2blk (&v->vtoc, &anc->geo) - 1) * anc->blksize;
+ if (anc->FBA_layout != 1 ) {
+ /* found VOL1 volume label */
+ b = (cchhb2blk (&v->vtoc, &anc->geo) - 1) * anc->blksize;
- if (b > 0) {
- int rc;
- rc = fdasd_valid_vtoc_pointer (anc, b, fd);
+ if (b > 0) {
+ int rc;
+ rc = fdasd_valid_vtoc_pointer (anc, b, fd);
- if (rc < 0)
- return 1;
- else
- return 0;
- } else {
- fdasd_invalid_vtoc_pointer(anc);
+ if (rc < 0)
+ return 1;
+ else
+ return 0;
+ } else {
+ 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) {