37 lines
789 B
Bash
37 lines
789 B
Bash
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set -e
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# 这句是告诉bash如何有任何语句执行结果不为ture，就应该退出。
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if grep -v '^#' /etc/fstab | grep -q cgroup; then
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echo 'cgroups mounted from fstab, not mounting /sys/fs/cgroup'
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exit 0
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fi
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# kernel provides cgroups?
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if [ ! -e /proc/cgroups ]; then
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exit 0
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fi
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# 确保目录存在
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if [ ! -d /sys/fs/cgroup ]; then
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exit 0
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fi
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# mount /sys/fs/cgroup if not already done
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if ! mountpoint -q /sys/fs/cgroup; then
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mount -t tmpfs -o uid=0,gid=0,mode=0755 cgroup /sys/fs/cgroup
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fi
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cd /sys/fs/cgroup
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# get/mount list of enabled cgroup controllers
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for sys in $(awk '!/^#/ { if ($4 == 1) print $1 }' /proc/cgroups); do
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mkdir -p $sys
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if ! mountpoint -q $sys; then
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if ! mount -n -t cgroup -o $sys cgroup $sys; then
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rmdir $sys || true
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fi
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fi
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done
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exit 0
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