freebsd-nq/etc/mtree
Alan Somers 0b4275accb fusefs: merge from projects/fuse2
This commit imports the new fusefs driver. It raises the protocol level
from 7.8 to 7.23, fixes many bugs, adds a test suite for the driver, and
adds many new features. New features include:

* Optional kernel-side permissions checks (-o default_permissions)
* Implement VOP_MKNOD, VOP_BMAP, and VOP_ADVLOCK
* Allow interrupting FUSE operations
* Support named pipes and unix-domain sockets in fusefs file systems
* Forward UTIME_NOW during utimensat(2) to the daemon
* kqueue support for /dev/fuse
* Allow updating mounts with "mount -u"
* Allow exporting fusefs file systems over NFS
* Server-initiated invalidation of the name cache or data cache
* Respect RLIMIT_FSIZE
* Try to support servers as old as protocol 7.4

Performance enhancements include:

* Implement FUSE's FOPEN_KEEP_CACHE and FUSE_ASYNC_READ flags
* Cache file attributes
* Cache lookup entries, both positive and negative
* Server-selectable cache modes: writethrough, writeback, or uncached
* Write clustering
* Readahead
* Use counter(9) for statistical reporting

PR:		199934 216391 233783 234581 235773 235774 235775
PR:		236226 236231 236236 236291 236329 236381 236405
PR:		236327 236466 236472 236473 236474 236530 236557
PR:		236560 236844 237052 237181 237588 238565
Reviewed by:	bcr (man pages)
Reviewed by:	cem, ngie, rpokala, glebius, kib, bde, emaste (post-commit
		review on project branch)
MFC after:	3 weeks
Relnotes:	yes
Sponsored by:	The FreeBSD Foundation
Pull Request:	https://reviews.freebsd.org/D21110
2019-08-07 00:38:26 +00:00
..
BSD.debug.dist Upgrade our copies of clang, llvm, lld, lldb, compiler-rt, libc++, 2019-06-12 21:10:37 +00:00
BSD.include.dist Remove NAND and NANDFS support 2019-06-25 04:50:09 +00:00
BSD.lib32.dist Normalize the g(eom,cache,part,...) build. 2018-06-25 19:55:15 +00:00
BSD.libsoft.dist Add libsoft to the tree, just like lib32. 2016-01-03 04:32:05 +00:00
BSD.release.dist
BSD.root.dist powerpc/boot: Move ubldr to /boot/uboot, and make this a separate filesystem 2019-02-18 01:57:47 +00:00
BSD.sendmail.dist mtree: Add more runtime package tag 2019-04-25 16:45:24 +00:00
BSD.tests.dist fusefs: merge from projects/fuse2 2019-08-07 00:38:26 +00:00
BSD.usr.dist Upgrade our copies of clang, llvm, lld, lldb, compiler-rt, libc++, 2019-06-12 21:10:37 +00:00
BSD.var.dist Create the /var/account dir with mode 0750; this is a followup to r349974. 2019-07-30 15:51:28 +00:00
Makefile Unconditionally install etc/mtree/BSD.debug.dist again 2017-07-25 00:28:23 +00:00
README

$FreeBSD$

Note: If you modify these files, please keep hier(7) updated!

These files are used to create empty file hierarchies for building the
system into.  Some notes about working with them are placed here to try
and keep them in good working order.

    a)  The files use 4 space indentation, and other than in the header
        comments, should not contain any tabs.  An indentation of 4 is
        preferable to the standard indentation of 8 because the indentation
        of levels in these files can become quite deep causing the line to
        overflow 80 characters.

        This also matches with the files generated when using the
        mtree -c option, which was implemented that way for the same reason.

    b)  Only directories should be listed here.

    c)  The listing should be kept in filename sorted order.

    d)  Sanity checking changes to these files can be done by following
        this procedure (the sed -e is ugly, but fixing mtree -c to
        not emit the trailing white space would be even uglier):

            mkdir /tmp/MTREE
            mtree -deU -f BSD.X.dist -p /tmp/MTREE
            mtree -cdin -k uname,gname,mode -p /tmp/MTREE | \
		sed -e 's/ *$//' >BSD.X.new
            diff -u BSD.X.dist BSD.X.new
            rm -r /tmp/MTREE

        Note that you will get some differences about /set lines,
        and uname= gname= on certain directory areas, mainly man page
        sections.  This is caused by mtree not having a look ahead
        mechanism for making better selections for these as it
        traverses the hierarchy.

        The BSD.X.new file should NOT be committed, as it will be missing
        the correct header, and important keywords like ``nochange''.
        Simply use the diff for a sanity check to make sure things are in
        the correct order and correctly indented.

    e)  Further sanity checking of the system builds with DESTDIR=/someplace
        are more complicated, but can often catch missing entries in these
        files.  I tend to run this more complete sanity check shortly after
        the target date for a new release is announced.

        If you want details on it bug me about it via email to
        rgrimes@FreeBSD.org.