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From: Kurt H Maier <khm@sciops.net>
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Subject: Re: [9front] [PATCH] ramfs: change Elocked error string to Go
 expectation
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On Thu, Jun 11, 2020 at 04:02:50PM -0400, Fazlul Shahriar wrote:
> Go expects the error to be one of the three errors returned in
> Bell Labs Plan 9. As listed in
> https://github.com/golang/go/blob/f7ba82d68f90e20aa9e6aa973cb6f12321abec71/src/cmd/go/internal/lockedfile/lockedfile_plan9.go#L16:
> 
> 	// Opening an exclusive-use file returns an error.
> 	// The expected error strings are:
> 	//
> 	//  - "open/create -- file is locked" (cwfs, kfs)
> 	//  - "exclusive lock" (fossil)
> 	//  - "exclusive use file already open" (ramfs)
> 	var lockedErrStrings = [...]string{
> 		"file is locked",
> 		"exclusive lock",
> 		"exclusive use file already open",
> 	}

hjfs uses "file locked" as well