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Title: PUFFS (NetBSD)  
Author: World Heritage Encyclopedia
Language: English
Subject: DragonFly BSD, Filesystem in Userspace, Puff
Publisher: World Heritage Encyclopedia


Written in C
Operating system NetBSD
Type File system driver
License BSD license

Pass-to-Userspace Framework File System (puffs) is a NetBSD kernel subsystem developed for running filesystems in userspace. It was added to NetBSD in the 5.0 release.

FUSE compatibility

In NetBSD 5.0, puffs includes refuse, a reimplementation of the libfuse high level interface.[1] Unfortunately, some filesystems use the low level libfuse interface or the kernel FUSE interface and they cannot be supported through refuse.

NetBSD 6.0 addresses that limitation through perfuse, a new compatibility layer that emulates the FUSE kernel interface.[2]


External links

  • presented at AsiaBSDCon 2008.
  • puffs - Pass-to-Userspace Framework File System presented at AsiaBSDCon 2007.
  • ReFUSE: Userspace FUSE Reimplementation Using puffs presented at EuroBSDCon 2007.

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