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 * @param fs_handle File system handle of the file system where to perform
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 * @param fs_handle File system handle of the file system where to perform
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 *          the lookup.
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 *          the lookup.
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 * @param rid       Request ID of the VFS_LOOKUP request.
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 * @param rid       Request ID of the VFS_LOOKUP request.
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 * @param request   VFS_LOOKUP request data itself.
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 * @param request   VFS_LOOKUP request data itself.
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 */
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 */
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void libfs_lookup(libfs_ops_t *ops, int fs_handle, ipc_callid_t rid,
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void libfs_lookup(libfs_ops_t *ops, fs_handle_t fs_handle, ipc_callid_t rid,
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    ipc_call_t *request)
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    ipc_call_t *request)
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{
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{
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    unsigned next = IPC_GET_ARG1(*request);
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    unsigned next = IPC_GET_ARG1(*request);
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    unsigned last = IPC_GET_ARG2(*request);
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    unsigned last = IPC_GET_ARG2(*request);
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    int dev_handle = IPC_GET_ARG3(*request);
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    dev_handle_t dev_handle = IPC_GET_ARG3(*request);
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    int lflag = IPC_GET_ARG4(*request);
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    int lflag = IPC_GET_ARG4(*request);
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    int index = IPC_GET_ARG5(*request); /* when L_LINK specified */
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    fs_index_t index = IPC_GET_ARG5(*request); /* when L_LINK specified */
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    if (last < next)
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    if (last < next)
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        last += PLB_SIZE;
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        last += PLB_SIZE;
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    void *par = NULL;
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    void *par = NULL;