Linked by Oliver on Fri 11th Mar 2011 23:32 UTC
GNU, GPL, Open Source "Now that Linux is the most popular free Unix-like operating system, it shouldn't be a surprise that some projects have begun treating non-Linux operating systems as second-class citizens. This isn't out of contempt for the BSDs or OpenSolaris, it's just a matter of limited manpower: if almost all the users of the application have a Linux operating system and if all the core developers are using Linux themselves, it's difficult to keep supporting other operating systems. But sometimes the choice to leave out support for other operating systems is explicitly made, e.g. when the developers want to implement some innovative features that require functionality that is (at least for now) only available in the Linux kernel."
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danieldk
Member since:
2005-11-18

Oliver, this article counters your arguments pretty well:
https://lwn.net/Articles/339337/

Even within BSD projects, it is generally acknowledged that softupdates are complex (and again, NetBSD dropped it for that reason, too hard to debug).

Maybe you could make an actual case what is wrong with journaling as in ext3? It is a simple and elegant solution to a problem: asynchronous metadata writes make a filesystem faster, but are also more dangerous. So, you keep a log of updates synchronously, that you can replay in case of a crash. It is really a sane solution that is also used by nearly all databases.

A viable alternative are log filesystems or COW filesystems, but they are a new generation.

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