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35 lines
900 B
Go
35 lines
900 B
Go
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package fuse
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// Go 1.9 introduces polling for file I/O. The implementation causes
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// the runtime's epoll to take up the last GOMAXPROCS slot, and if
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// that happens, we won't have any threads left to service FUSE's
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// _OP_POLL request. Prevent this by forcing _OP_POLL to happen, so we
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// can say ENOSYS and prevent further _OP_POLL requests.
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const pollHackName = ".go-fuse-epoll-hack"
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const pollHackInode = ^uint64(0)
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func doPollHackLookup(ms *Server, req *request) {
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switch req.inHeader.Opcode {
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case _OP_CREATE:
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out := (*CreateOut)(req.outData())
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out.EntryOut = EntryOut{
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NodeId: pollHackInode,
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Attr: Attr{
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Ino: pollHackInode,
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Mode: S_IFREG | 0644,
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Nlink: 1,
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},
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}
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out.OpenOut = OpenOut{
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Fh: pollHackInode,
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}
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req.status = OK
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case _OP_LOOKUP:
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out := (*EntryOut)(req.outData())
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*out = EntryOut{}
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req.status = ENOENT
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default:
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req.status = EIO
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}
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}
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