67b54c6670
Auto-detect longest common dir in lowerdir option and compact it if the option size is hitting one page size. If does, Use chdir + CLONE to do mount thing to avoid hitting one page argument buffer in linux kernel mount. Signed-off-by: Wei Fu <fhfuwei@163.com>
31 lines
889 B
Go
31 lines
889 B
Go
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package sys
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import (
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_ "unsafe" // required for go:linkname.
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)
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//go:linkname beforeFork syscall.runtime_BeforeFork
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func beforeFork()
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//go:linkname afterFork syscall.runtime_AfterFork
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func afterFork()
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//go:linkname afterForkInChild syscall.runtime_AfterForkInChild
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func afterForkInChild()
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