[RFC][glibc PATCH] fcntl-linux.h: add new definitions and manual updates for open file description locks

[Alfred M. Szmidt]

   @@ -2890,7 +2894,7 @@ Get flags associated with the open file.  @xref{File Status Flags}.
    Set flags associated with the open file.  @xref{File Status Flags}.

    @item F_GETLK
   -Get a file lock.  @xref{File Locks}.
   +Test a file lock.  @xref{File Locks}.

F_GETLK does get the (first) lock which blocks; it doesn't test for
it.  "Retrieves information about the first blocking lock ..." or
something might be better than the original

   @@ -2898,6 +2902,18 @@ Set or clear a file lock.  @xref{File Locks}.
    @item F_SETLKW
    Like @code{F_SETLK}, but wait for completion.  @xref{File Locks}.

   + at item F_OFD_GETLK
   +Test a open file description lock.  @xref{Open File Description Locks}.
   +Specific to Linux.

Likewise.  You infact write that it does get the lock information
later in the document wrt. F_OFD_GETLK.