On Tue, Feb 14, 2012 at 10:50 PM, Scott Long <sco...@samsco.org> wrote:
> > Any filesystem that uses bread/bwrite/cluster_read are already using the > "generic caching subsystem" that you propose. This includes UDF, CD9660, > MSDOS, NTFS, XFS, ReiserFS, EXT2FS, and HPFS, i.e. every local storage > filesystem in the tree except for ZFS. Not all of them implement > VOP_GETPAGES/VOP_PUTPAGES, but those are just optimizations for the vnode > pager, not requirements for using buffer-cache services on block devices. > As Kostik pointed out in a parallel email, the only thing that was removed > from FreeBSD was the userland interface to cached devices via /dev nodes. > Does this mean the Architecture Handbook page is wrong?: http://www.freebsd.org/doc/en/books/arch-handbook/driverbasics-block.html -- Adam Vande More _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
