File s390-tools-sles12sp3-dasdfmt-06-Make-the-IOCTL-... of Package s390-tools

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File s390-tools-sles12sp3-dasdfmt-06-Make-the-IOCTL-BLKSSZGET-reusable.patch of Package s390-tools (Revision 9f18b4c037bfc00a5fa179490742ee7e)

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Subject: [PATCH] [FEAT LS1501] dasdfmt: Add new formatting modes
From: Jan Höppner <hoeppner@linux.vnet.ibm.com>

Summary:     dasdfmt: Add new formatting modes
Description: Introduce new formatting modes 'quick' and 'expand' to either
             format an earlier formatted DASD that could potentially be
             re-initialized very easily or format unformatted tracks at the
             end of a device that was previously extended.

Also add the command line argument --check to provide a function
             that checks a DASD volume for correct formatting.
Upstream-ID: -
Problem-ID:  LS1501

Upstream-Description:

dasdfmt: Make the IOCTL BLKSSZGET reusable

The IOCTL BLKSSZGET is used to get blocksize information of a device.
             Since it is used several times already and could be used for new
             features as well, move the call to a separate function and make it
             reusable.

Signed-off-by: Jan Höppner <hoeppner@linux.vnet.ibm.com>
             Signed-off-by: Stefan Haberland <sth@linux.vnet.ibm.com>

Signed-off-by: Jan Höppner <hoeppner@linux.vnet.ibm.com>
---
 dasdfmt/dasdfmt.c |   24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

--- a/dasdfmt/dasdfmt.c
+++ b/dasdfmt/dasdfmt.c
@@ -252,6 +252,17 @@ static void get_device_info(dasdfmt_info
 }
 
 /*
+ * Retrieve blocksize of device
+ */
+static void get_blocksize(unsigned int *blksize)
+{
+	if (ioctl(filedes, BLKSSZGET, blksize) != 0)
+		ERRMSG_EXIT(EXIT_FAILURE, "%s: the ioctl to get the blocksize "
+			    "of the device failed (%s).\n", prog_name,
+			    strerror(errno));
+}
+
+/*
  * check for disk type and set some variables (e.g. usage count)
  */
 static void check_disk(dasdfmt_info_t *info)
@@ -510,7 +521,7 @@ static void dasdfmt_print_info(dasdfmt_i
  */
 static int dasdfmt_get_volser(dasdfmt_info_t *info, char *volser)
 {
-	int blksize;
+	unsigned int blksize;
 	int f;
 	volume_label_t vlabel;
 
@@ -519,9 +530,7 @@ static int dasdfmt_get_volser(dasdfmt_in
 		ERRMSG_EXIT(EXIT_FAILURE, "%s: Unable to open device %s: %s\n",
 			    prog_name, info->devname, strerror(errno));
 
-	if (ioctl(filedes, BLKSSZGET, &blksize) != 0)
-		ERRMSG_EXIT(EXIT_FAILURE, "%s: (label pos) IOCTL BLKSSZGET "
-			    "failed (%s).\n", prog_name, strerror(errno));
+	get_blocksize(&blksize);
 
 	if (close(f) != 0)
 		ERRMSG("%s: error during close: %s\ncontinuing...\n",
@@ -551,7 +560,8 @@ static void dasdfmt_write_labels(dasdfmt
 	format4_label_t f4;
 	format5_label_t f5;
 	format7_label_t f7;
-	int rc, blksize;
+	unsigned int blksize;
+	int rc;
 	void *ipl1_record, *ipl2_record;
 	int ipl1_record_len, ipl2_record_len;
 
@@ -559,9 +569,7 @@ static void dasdfmt_write_labels(dasdfmt
 	if (info->verbosity > 0)
 		printf("Retrieving dasd information... ");
 
-	if (ioctl(filedes, BLKSSZGET, &blksize) != 0)
-		ERRMSG_EXIT(EXIT_FAILURE, "%s: (write labels) IOCTL BLKSSZGET "
-			    "failed (%s).\n", prog_name, strerror(errno));
+	get_blocksize(&blksize);
 
 	/*
 	 * Don't rely on the cylinders returned by HDIO_GETGEO, they might be

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File s390-tools-sles12sp3-dasdfmt-06-Make-the-IOCTL-BLKSSZGET-reusable.patch of Package s390-tools (Revision 9f18b4c037bfc00a5fa179490742ee7e)

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