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Andriy Gapon 74f75cb1bd zfs_mount(MS_REMOUNT): protect zfs_(un)register_callbacks calls
We now take z_teardown_lock as a writer to ensure that there is no I/O
while the filesystem state is in a flux.  Also, zfs_suspend_fs() ->
zfsvfs_teardown() call zfs_unregister_callbacks() and zfs_resume_fs() ->
zfsvfs_setup() call zfs_unregister_callbacks().  Previously there was no
synchronization between those calls and the calls in the re-mounting
case.  That could lead to concurrent execution and a crash.

PR:		180060
Differential Revision:	https://reviews.freebsd.org/D2865
Suggested by:	mahrens
Reviewed by:	delphij, pho, mahrens, will
MFC after:	13 days
Sponsored by:	ClusterHQ
2015-07-02 08:32:02 +00:00
bin mv: Improve message when moving two or more files to non-directory. 2015-06-28 21:36:00 +00:00
cddl First cut of DTrace for AArch64. 2015-07-01 15:51:11 +00:00
contrib Fix a couple of missing lines that obscured the -p description. 2015-06-28 20:53:36 +00:00
crypto Merge OpenSSL 1.0.1o. 2015-06-12 16:48:26 +00:00
etc Updated random(4) boot/shutdown scripting. 2015-06-30 17:09:41 +00:00
games Add META_MODE support. 2015-06-13 19:20:56 +00:00
gnu new depends 2015-06-16 23:37:19 +00:00
include new depends 2015-06-16 23:37:19 +00:00
kerberos5 Fix a typo introduced in r262209. 2015-06-18 21:18:43 +00:00
lib Bump .Dd for the example code update. 2015-07-01 16:50:01 +00:00
libexec Also save x8. It may be passed into a function as the indirect result 2015-06-23 10:32:26 +00:00
release Fix the path to the UFS/MSDOSFS filesystem labels, since they 2015-07-02 02:33:58 +00:00
rescue Add META_MODE support. 2015-06-13 19:20:56 +00:00
sbin Fix support for the null encryption algorithm which now requires 2015-06-25 18:38:58 +00:00
secure Add compatibility with $2y$ bcrypt hashes 2015-06-16 23:57:29 +00:00
share add units to the length and count so that it's clear what they 2015-06-30 19:06:14 +00:00
sys zfs_mount(MS_REMOUNT): protect zfs_(un)register_callbacks calls 2015-07-02 08:32:02 +00:00
targets Support WITH_LLDB 2015-06-16 23:38:44 +00:00
tests Misc fixes from projects/bmake 2015-06-11 21:13:05 +00:00
tools cxgbetool: fix code that decodes T5 SGE contexts. Some of the fields 2015-06-30 22:30:21 +00:00
usr.bin The LDFLAGS isn't needed, and breaks the build on powerpc64. 2015-06-30 06:02:42 +00:00
usr.sbin dconschat(8): Use NULL instead of 0 for the last argument in execl(3) 2015-06-28 20:32:03 +00:00
.arcconfig Phabricator: enable "history.immutable": 2015-04-30 00:27:53 +00:00
.arclint phabricator related changes: 2015-04-20 20:33:22 +00:00
COPYRIGHT Bump copyright year. 2014-12-31 10:00:43 +00:00
LOCKS Explicitly require Security Officer's approval for kernel PRNG bits. 2013-09-17 14:19:05 +00:00
MAINTAINERS Remove cokane@ from MAINTAINERS for 3dfx(4)/tdfx(4) because their email 2014-11-25 05:25:12 +00:00
Makefile targets now needs .PHONY 2015-06-22 16:13:17 +00:00
Makefile.inc1 First cut of DTrace for AArch64. 2015-07-01 15:51:11 +00:00
ObsoleteFiles.inc Add one more file missed in the BIND-removal entries. 2015-07-01 15:54:13 +00:00
README Import OpenSSL 1.0.1o. 2015-06-12 16:33:55 +00:00
UPDATING Huge cleanup of random(4) code. 2015-06-30 17:00:45 +00:00

This is the top level of the FreeBSD source directory.  This file
was last revised on:
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For copyright information, please see the file COPYRIGHT in this
directory (additional copyright information also exists for some
sources in this tree - please see the specific source directories for
more information).

The Makefile in this directory supports a number of targets for
building components (or all) of the FreeBSD source tree.  See build(7)
and http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html
for more information, including setting make(1) variables.

The `buildkernel` and `installkernel` targets build and install
the kernel and the modules (see below).  Please see the top of
the Makefile in this directory for more information on the
standard build targets and compile-time flags.

Building a kernel is a somewhat more involved process.  See build(7), config(8),
and http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html
for more information.

Note: If you want to build and install the kernel with the
`buildkernel` and `installkernel` targets, you might need to build
world before.  More information is available in the handbook.

The kernel configuration files reside in the sys/<arch>/conf
sub-directory.  GENERIC is the default configuration used in release builds.
NOTES contains entries and documentation for all possible
devices, not just those commonly used.


Source Roadmap:
---------------

bin		System/user commands.

cddl		Various commands and libraries under the Common Development
		and Distribution License.

contrib		Packages contributed by 3rd parties.

crypto		Cryptography stuff (see crypto/README).

etc		Template files for /etc.

games		Amusements.

gnu		Various commands and libraries under the GNU Public License.
		Please see gnu/COPYING* for more information.

include		System include files.

kerberos5	Kerberos5 (Heimdal) package.

lib		System libraries.

libexec		System daemons.

release		Release building Makefile & associated tools.

rescue		Build system for statically linked /rescue utilities.

sbin		System commands.

secure		Cryptographic libraries and commands.

share		Shared resources.

sys		Kernel sources.

tests		Regression tests which can be run by Kyua.  See tests/README
		for additional information.

tools		Utilities for regression testing and miscellaneous tasks.

usr.bin		User commands.

usr.sbin	System administration commands.


For information on synchronizing your source tree with one or more of
the FreeBSD Project's development branches, please see:

  http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/synching.html