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nfs-utils: don't use signals to shut down nfs server.
Since Linux v2.4 it has been possible to stop all NFS server by running rpc.nfsd 0 i.e. by requesting that zero threads be running. This is preferred as it doesn't risk killing some other process which happens to be called "nfsd". Since Linux v6.6 - and other stable kernels to which Commit: 390390240145 ("nfsd: don't allow nfsd threads to be signalled.") has been backported - sending a signal no longer works to stop nfs server threads. This patch changes the nfsserver script to use "rpc.nfsd 0" to stop server threads. (From OE-Core rev: 7b09ad289a36e388ee4244b574ed32b66b654286) Signed-off-by: NeilBrown <neil@brown.name> Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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@ -89,34 +89,14 @@ start_nfsd(){
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start-stop-daemon --start --exec "$NFS_NFSD" -- "$@"
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echo done
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}
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delay_nfsd(){
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for delay in 0 1 2 3 4 5 6 7 8 9
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do
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if pidof nfsd >/dev/null
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then
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echo -n .
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sleep 1
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else
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return 0
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fi
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done
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return 1
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}
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stop_nfsd(){
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# WARNING: this kills any process with the executable
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# name 'nfsd'.
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echo -n 'stopping nfsd: '
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start-stop-daemon --stop --quiet --signal 1 --name nfsd
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if delay_nfsd || {
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echo failed
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echo ' using signal 9: '
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start-stop-daemon --stop --quiet --signal 9 --name nfsd
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delay_nfsd
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}
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$NFS_NFSD 0
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if pidof nfsd
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then
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echo done
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else
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echo failed
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else
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echo done
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fi
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}
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