Juri Linkov <juri@linkov.net> writes:

>>> However, all calls to vc-print-log use this same buffer.
>>> This seems to be hard-coded in vc.el (vc-print-log-internal).
>>>
>>> I would like to be able to make it so that each use of "l" from a
>>> *vc-dir* buffer gets its own *vc-change-log* buffer; and that "C-x v l"
>>> in some source file gets a separate buffer.  This way the per-project
>>> change-log buffers could be relatively long-lived; as it is recomputing
>>> the data in them takes much too long.
>>
>> You can already do something similar by using C-x x u to rename the
>> *vc-change-log* buffer, and then 'g' inside it works to regenerate it.
>
> Or (add-hook 'log-view-mode-hook 'rename-uniquely)

Note that while browsing a change log buffer, when one runs the command
`log-view-diff', the log buffer is not killed.

For people like me who makes an heavy use of "C-x v l", "C-x v L" and "l" in *vc-dir* buffers, it leads to have hundreds of *vc-change-log* buffers at the
end of the day…