bug#54606: 27.1; next/previous image command in image-mode triggers tramp connections for all remote dired buffers

[Lars Ingebrigtsen]

Phil Sainty <psainty@orcon.net.nz> writes:

>       ;; Find a dired buffer.
>       (dolist (buffer (buffer-list))
>       (with-current-buffer buffer
>         (when (and (derived-mode-p 'dired-mode)
>                    (equal (file-truename dir)
>                           (file-truename default-directory)))
>
> That call to (file-truename default-directory) for each dired
> buffer can cause tramp to spin up for closed connections for
> entirely irrelevant dired buffers.
>
> Can we put some guards in there to decide whether or not dir
> and default-directory are actually on the same host before
> comparing them via file-truename?

Hm.  Would binding `non-essential' around that call fix the issue?  (I've
added Michael to the CCs.)

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   bloggy blog: http://lars.ingebrigtsen.no