D26407: KFileItem: improve isSlow to never block, make SkipMimeTypeFromContent skip only network fs

[Kai Uwe Broulik]

broulik added inline comments.

INLINE COMMENTS

> kfileitem.cpp:783
> +            const auto &mountPoints = getMountPoints();
> +            auto mp = mountPoints.findByPath(path);
> +            if (mp) {

This creates a `QFileInfo` for `canonicalFilePath` which blocks, so the cache doesn't help at all.

REPOSITORY
  R241 KIO

REVISION DETAIL
  https://phabricator.kde.org/D26407

To: meven, #frameworks, ngraham, broulik, dfaure
Cc: anthonyfieroni, kde-frameworks-devel, LeGast00n, GB_2, michaelh, ngraham, bruns
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