* Commit 493972c8 broke the rules used for the generation of the
stripped kernel source tree because of the requirement of the
rpm directory to be present for CONFIG_KERNEL
(which is clearly not required for us).
* Add a new rule to sed Makefile.am and manually set "SUBDIRS" to
"module include" for CONFIG_KERNEL and remove it for the other
configs.
* This has the benefit that now running ./configure --with-config=user
&& make in the DKMS source tree is a nop while before it gave
an error.
* Improve the robustness of the rules by ensuring that they will
abort if something is not as expected.
* Upstream is not longer using github to distribute tarballs
* 0.6.1 tarballs were not added (as the time of writing this) to
https://github.com/zfsonlinux/spl/downloads
* Update the url to http://zfsonlinux.org/
* uscan --report-status now says:
Newest version on remote site is 0.6.1, local version is 0.6.1
=> Package is up to date
In order to ensure that yum-builddep pulls in all the build
requirements a generic ${kmodname}-devel-kmod provides line is
added. This allows a version of the development headers to be
included without requiring knowledge of the kernel version.
This is important because unlike rpmbuild which does correctly
expand the source rpm spec file, yum-builddep does not. Without
this generic provides line mock which relies on yum-builddep is
unable to automatically satisfy the dependency.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
When building from an arbitrary commit in the git tree it's useful
for the resulting packages to be uniquely identifiable. Therefore,
the build system has been updated to detect if your compiling in
git tree.
If you are building in a git tree, and there are commits after the
last annotated tag. Then the <id>-<hash> component of 'git describe'
will be used to overwrite the 'Release:' field in the META file.
The only tricky part is that to ensure the 'make dist' tarball is
built using the correct release. A dist-hook was added to the top
level make file to rewrite the META file using the correct release.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#195
Issue #111
Calling cond_resched() after each object is freed and then after each
slab is freed can cause slabs of objects to live for excessive periods
of time following reclaimation. This interferes with the kernel's own
memory management when called from kswapd and can cause direct reclaim
to occur in response to memory pressure that should have been resolved.
Signed-off-by: Richard Yao <ryao@cs.stonybrook.edu>
The --with-linux and --with-linux-obj options must be specified
as part of the dkms build otherwise the package will be built
against the running kernel.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Because the spl-dkms package also provides spl-kmod for the
spl user package yum flags this as a conflict. To avoid the
problem remove the Conflicts tag from spl-dkms and just rely
on the one in spl-kmod.
spl-dkms-0.6.0-rc14.fc18.noarch has installed conflicts
spl-kmod: spl-dkms-0.6.0-rc14.fc18.noarch
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
The automake templates have been updated to install this man
page and the existing packaging was updated to include it.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Refresh the existing RPM packaging to conform to the 'Fedora
Packaging Guidelines'. This includes adopting the kmods2
packaging standard which is used fod kmods distributed by
rpmfusion for Fedora/RHEL.
http://fedoraproject.org/wiki/Packaging:Guidelineshttp://rpmfusion.org/Packaging/KernelModules/Kmods2
While the spec files have been entirely rewritten from a
user perspective the only major changes are:
* The Fedora packages now have a build dependency on the
rpmfusion repositories. The generic kmod packages also
have a new dependency on kmodtool-1.22 but it is bundled
with the source rpm so no additional packages are needed.
* The kernel binary module packages have been renamed from
spl-modules-* to kmod-spl-* as specificed by kmods2.
* The is now a common kmod-spl-devel-* package in addition
to the per-kernel devel packages. The common package
contains the development headers while the per-kernel
package contains kernel specific build products.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#222
* There is not need to have empty skeleton {pre,post}{inst,rm} files
* debhelper will create this at build time automatically when needed
* debhelper(7)
Automatic generation of debian install scripts:
Some debhelper commands will automatically generate parts of debian
maintainer scripts. If you want these automatically generated things
included in your existing debian maintainer scripts, then you need to
add "#DEBHELPER#" to your scripts, in the place the code should be
added. "#DEBHELPER#" will be replaced by any auto-generated code when
you run dh_installdeb.
If a script does not exist at all and debhelper needs to add something
to it, then debhelper will create the complete script.
Install the common spl kernel development headers under
/usr/src/spl-<version>/ rather than in a kernel specific
directory. The kernel specific build products such as
spl_config.h and Modules.symvers are left installed under
/usr/src/spl-<version>/<kernel>.
This was done to be consistent with where dkms expects
kernel module source to be packaged. It also allows for
a common spl-kmod-devel package which includes the headers,
and per-kernel spl-kmod-devel-<kernel> packages.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
torvalds/linux@b67bfe0d42 changed
hlist_for_each_entry{,_rcu} to take 3 arguments instead of 4. We handle
this by switching to hlist_for_each{,_rcu}, which works across all
supported kernels.
Signed-off-by: Richard Yao <ryao@cs.stonybrook.edu>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
This was a suggestion that Brian Behlendorf made when reviewing an early
pull request for Linux 3.9 support. This commit was made intentionally
easy to revert should we ever have a reason to reintroduce support for
older kernels.
Signed-off-by: Richard Yao <ryao@cs.stonybrook.edu>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
torvalds/linux@dcf787f391 enforces
const-correctness in passing struct path *.
Signed-off-by: Richard Yao <ryao@cs.stonybrook.edu>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
The function prototype of vfs_getattr previoulsy took struct vfsmount *
and struct dentry * as arguments. These would always be defined together
in a struct path *.
torvalds/linux@3dadecce20 modified
vfs_getattr to take struct path * is taken as an argument instead.
Signed-off-by: Richard Yao <ryao@cs.stonybrook.edu>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
torvalds/linux@182be68478 removed the
preprocessor definition for f_vfsmnt. The ability to access the
mountpoint via ->f_path.mnt has been stable for a long time, so we
switch to that.
Signed-off-by: Richard Yao <ryao@cs.stonybrook.edu>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Linux 3.9 reorganized sched.h, splitting it into numerous files.
torvalds/linux@8bd75c77b7 moved MAX_PRIO
and MAX_RT_PRIO to linux/sched/rt.h.
Signed-off-by: Richard Yao <ryao@cs.stonybrook.edu>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Update links to refer to the official ZFS on Linux website instead of
@behlendorf's personal fork on github.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
The kernel modules are now available in the Arch User Repository
(AUR) via zfs. Since their packaging is maintained and superior
to ours it is being removed from the tree.
https://wiki.archlinux.org/index.php/ZFS
Now that various distributions are picking up the packages we
should eventually be able to remove most of this infrastructure.
Packaging belongs with the distributions not upstream.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
* The previous commit (cfeaec5) ensured that /etc/hostid will exist
on the system after the package is installed.
* Therefore remove this patch that warns about the non existence of
such file.
* /etc/hostid should not be a configuration file.
This is by policy:
E.2 Fully-featured maintainer script configuration handling
http://www.debian.org/doc/debian-policy/ap-pkg-conffiles.html
This kind of site-specific configuration files should not be added
to the package files.
You don't want this file to be removed when you purge the package.
* Handle the creation on /etc/hostid on zfs-dkms.postinst
* Check if /etc/hostid exists and is at least 4 bytes size.
* If it isn't, then write the value returned by "hostid" on /etc/hostid
taking care of endianness
* Note that on zfs-dkms.postinst #DEBHELPER# is after this check for
/etc/hostid. Therefore the stabilization of /etc/hostid will be
done before the spl mode is built by DKMS.
Rather than use a custom install target it is cleaner to define
a 'kerneldir' and set 'kernel_HEADERS' appropriately. This
allows us to leverage the standing configure install support.
Additionally, I took this opertunity add the missing make files
to the include subdirectories.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Provide a mechanism to control the directory name the modules
are installed in. The kernel privdes INSTALL_MOD_DIR for
this but it was hardcoded to be 'addon/spl'.
Add a KMODDIR variable which can be passed to 'make install'
to override the default directory name. While we're here
change the default from 'addon/spl' to 'extra' which is the
kernel.org default.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
The default permissions used by install are 755. Since this
file isn't executable 644 is more appropriate.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
* We use the variable DKMSFILES to explicity select wich files
or directories are copied inside the DKMS source tree.
* Once copied. We rewrite configure.ac with awk to remove the
userland/misc components and only keep the kernel stuff that
is needed by DKMS.
* The awk lines deletes from inside AC_CONFIG_FILES([]) of configure.ac
everything except:
(Makefile$|include/|module/|*.release$|dkms.conf$)
* Then we run ./autogen.sh to generate the configure scripts
inside the DKMS source tree
* This allows us to ship a clean DKMS source tree with *only* the kernel
components and free from the userland/misc ones (ex: splat)
* Prevents manual build on the DKMS source tree.
Long ago infrastructure was added to the SPL to keep an internal
debug log of the last few seconds of activity. This was helpful
during the early development, but these days it is no longer
needed. I haven't had to resort to this debug buffer to resolve
an issue for several years now.
Today better more generic tools like systemtap and ftrace have
evolved to the point where they can be used for this purpose.
Along with the stack trace dumped to the system console, and in
rare cases a crash dump we almost always have the debug we need.
Therefore, I'm disabling the code which automatically dumps
this log to disk during an assertion except for the case where
spl_debug_panic_on_bug is set (disabled by default).
This should be viewed as a first step towards either.
a) Retiring this infrastructure and complexity entirely, or
b) Integrating this logging more properly with ftrace.
As part of this change I'm also removing from the packages the
undocumented spl utility which is used to decode the binary logs.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
The HAVE_MUTEX_OWNER_TASK_STRUCT fails on PPC64 with the following
error:
error: 'current' undeclared (first use in this function)
We include linux/sched.h to ensure that current is available.
Signed-off-by: Richard Yao <ryao@cs.stonybrook.edu>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
The SPL_AC_ATOMIC_SPINLOCK, SPL_AC_TYPE_ATOMIC64_CMPXCHG, and
SPL_AC_TYPE_ATOMIC64_XCHG were all directly including the
'asm/atomic.h' header. As of Linux 3.4 this header was removed
which results in a build failure.
The right thing to do is include 'linux/atomic.h' however we
can't safely do this because it doesn't exist in 2.6.26 kernels.
Therefore, we include 'linux/fs.h' which in turn includes the
correct atomic header regardless of the kernel version.
When these incorrect APIs are used in ZFS the following build
failure results.
arc.c:791:80: warning: '__ret' may be used uninitialized
in this function [-Wuninitialized]
arc.c:791:1875: error: call to '__cmpxchg_wrong_size'
declared with attribute error: Bad argument size for cmpxchg
Since this is all Linux 2.6.24 compatibility code there's
an argument to be made that it should be removed because
kernels this old are not supported. However, because we're
so close to a release I'm going to leave it in place for now.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closeszfsonlinux/zfs#814Closeszfsonlinux/zfs#1254
The tsd_exit() and tsd_destroy() functions remove entries from
hash bins without taking the hash bin lock. They do take the
table lock, but tsd_get() and tsd_set() only take the hash bin
lock to allow for maximum concurency.
The result is that while tsd_get() and tsd_set() are traversing
the hash bin list it can be modified by another thread in which
happens to hash to the same value. To avoid this add the needed
locking to tsd_exit() and tsd_destroy().
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#174
Check at ./configure time that the kernel was built with kallsyms
support. If the kernel doesn't have CONFIG_KALLSYMS defined the
modules will still compile cleanly but will not be loadable. So
we really want to catch this early during ./configure. Note that
we do not require CONFIG_KALLSYMS_ALL but it may be safely defined.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#6
