31 lines
1.0 KiB
Diff
31 lines
1.0 KiB
Diff
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commit d9bcb21179ccfea122f326aca4690afe0f7de0c6
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Author: Mingming Cao <mmc@linux.vnet.ibm.com>
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Date: Mon Mar 1 21:34:34 2021 -0800
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hcnmgr: Wait for sysfs device ready when looking up device name
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At the time of calling ofpathname to look up for devicename, wait
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for sysfs device ready. Otherwise, the OS may be in the middle of device
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renaming.
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Signed-off-by: Mingming Cao <mmc@linux.vnet.ibm.com>
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[tyreld: fixed up commit log]
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Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
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diff --git a/scripts/hcnmgr b/scripts/hcnmgr
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index c95edba..0d20e7d 100644
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--- a/scripts/hcnmgr
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+++ b/scripts/hcnmgr
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@@ -241,7 +241,10 @@ get_dev_hcn() {
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# Let's retry a few times.
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while [ $wait != 0 ]; do
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if DEVNAME=$(ofpathname -l "$(echo "$1" | sed -e "s/\/proc\/device-tree//")" 2>/dev/null); then
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- break
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+ if [ -e /sys/class/net/"$DEVNAME" ]; then
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+ hcnlog DEBUG "ofpathname waiting for /sys/class/net device $DEVNAME ready"
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+ break
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+ fi
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fi
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hcnlog DEBUG "ofpathname return $?, devname is $DEVNAME rety counter $wait"
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