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Add option for lazy unmount #459

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Add option for lazy unmount #459

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55acd9a
add option for lazy unmount
itomsawyer Apr 11, 2023
2185aa4
optimize fusermount args slice
itomsawyer Apr 30, 2024
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4 changes: 4 additions & 0 deletions fuse/api.go
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Original file line number Diff line number Diff line change
Expand Up @@ -279,6 +279,10 @@ type MountOptions struct {
// directory queries (i.e. 'ls' without '-l') can be faster with
// ReadDir, as no per-file stat calls are needed
DisableReadDirPlus bool

// LazyUnmount is used to calling fusermount with -z flag which make unmount
// works even if resource is still busy
LazyUnmount bool
}

// RawFileSystem is an interface close to the FUSE wire protocol.
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6 changes: 5 additions & 1 deletion fuse/mount_linux.go
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Expand Up @@ -189,7 +189,11 @@ func unmount(mountPoint string, opts *MountOptions) (err error) {
return err
}
errBuf := bytes.Buffer{}
cmd := exec.Command(bin, "-u", mountPoint)
args := []string{"-u", mountPoint}
if opts.LazyUnmount {
args[0] = "-uz"
}
cmd := exec.Command(bin, args...)
cmd.Stderr = &errBuf
if opts.Debug {
log.Printf("unmount: executing %q", cmd.Args)
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