When formatting a JBOD disk to AF, we unbind the /dev/sd
device nodes prior to starting the format in order to
avoid strange errors from cropping up. Additionally, we
also flush the unused multipath device maps for the same
reason. When we delete a RAID array, although delete the
/dev/sd device nodes prior to deleting the RAID array,
we weren't flushing the unused multipaths, so let's do that.
Signed-off-by: Brian King <brk...@linux.vnet.ibm.com>
---
iprlib.c | 28 ++++++++++++++++------------
1 file changed, 16 insertions(+), 12 deletions(-)
diff -puN iprlib.c~iprutils_raid_mpath_teardown iprlib.c
--- iprutils.patched/iprlib.c~iprutils_raid_mpath_teardown 2016-06-15
08:50:20.430472405 -0500
+++ iprutils.patched-bjking1/iprlib.c 2016-06-15 08:51:58.526421693 -0500
@@ -2706,6 +2706,19 @@ static int ipr_stop_array(struct ipr_ioa
return rc;
}
+static void ipr_mpath_flush()
+{
+ int pid, status;
+
+ /* flush unused multipath device maps */
+ pid = fork();
+ if (pid == 0) {
+ execlp("multipath", "-F", NULL);
+ _exit(errno);
+ } else
+ waitpid(pid, &status, 0);
+}
+
/**
* ipr_stop_array_protection - Stop array protection for an array
* @ioa: ipr ioa struct
@@ -2715,6 +2728,7 @@ static int ipr_stop_array(struct ipr_ioa
**/
int ipr_stop_array_protection(struct ipr_ioa *ioa)
{
+ ipr_mpath_flush();
return ipr_stop_array(ioa, "Stop Array Protection", 0);
}
@@ -3748,18 +3762,8 @@ int ipr_format_unit(struct ipr_dev *dev)
int length = IPR_DEFECT_LIST_HDR_LEN;
char *name = dev->gen_name;
- if (strlen(dev->dev_name) && dev->scsi_dev_data->device_id) {
- int pid, status;
-
- /* flush unused multipath device maps */
- pid = fork();
- if (pid == 0) {
- execlp("multipath", "-F", NULL);
- _exit(errno);
- } else {
- waitpid(pid, &status, 0);
- }
- }
+ if (strlen(dev->dev_name) && dev->scsi_dev_data->device_id)
+ ipr_mpath_flush();
if (strlen(name) == 0)
return -ENOENT;
_
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