Re: nilfs2 on Scientific Linux 6

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Hello Takada-san and all,

I made RPM packages of nilfs2-kmod and nilfs-utils for RHEL 6 clones.
They are placed at the NILFS site below:

http://www.nilfs.org/pub/centos/6/SRPMS/
http://www.nilfs.org/pub/centos/6/RPMS/x86_64/
http://www.nilfs.org/pub/centos/6/RPMS/i686/

Any feedback is welcome.

Regards,

Seiji Kihara

At 2011/11/19 23:53, Ryusuke Konishi <konishi.ryusuke@xxxxxxxxxxxxx> wrote:
> Hi TAKADA-san,
> On Sat, 19 Nov 2011 17:19:32 +0900, Shingo TAKADA wrote:
>> Hi
>>
>> i cloned the centos6 repo and confirmed nilfs2 works fine!
>> there's no kernel panics happend on my environment, lscp and unmount
>> works well. thank you very much.
>>
>>
>> then, i'm trying to build rpm package of the centos6 kmod.
>> but i'm not familiar with rpm and kernel modules.
>>
>> i'm reusing SPEC file from centos5's nilfs srpm.
>> kmodtool is renewed in RHEL6, replace with it.
>>
>> in SPEC file, build and install section, SPEC file calls
>> make with "modules" and "modules_install" argument.
>> Makefile in the centos6-kmod repo has no such rules.
>>
>> how should i fix Makefile or SPEC file?
>
> You may change both files.
>
> I'm not familiar with rpm build, too.  But, I guess it's possible to
> add modules and modules_install targets to makefiles in the
> nilfs2-kmod package to handle the change.
>
> Send us back the patch when well done.  I will apply it to my
> centos6-kmod tree.  (At least for changes against makefiles).
>
>
> Thanks,
> Ryusuke Konishi
>
>
>> thanks.
>> Shingo TAKADA
>>
>> (11/11/13 3:58), Ryusuke Konishi wrote:
>> > Hi,
>> > On Sat, 12 Nov 2011 15:20:00 +0900, Shingo TAKADA wrote:
>> >> Hi
>> >>
>> >> thank you for your advice.
>> >>
>> >> I replace the line, REQ_UNPLUG, with your patch, BIO_RW_UNPLUG in
>> >> segbuf.c in SL6's kernel srpm archive.
>> >>
>> >> make is done successfully like 2.6.32.27's case (see my last post),
>> >> and kernel panics like 2.6.32.27's case when unmounting the nilfs2
>> >> partition...
>> >>
>> >> i rebuilt the nilfs2 partition again after replacing the nilfs2.ko
>> >> module and modprobe it.
>> >
>> > I've pushed out a standalone nilfs2 kmod for Centos6 and SL6.
>> >
>> > It is available from http://git.nilfs.org/nilfs2-kmod-centos6.git as
>> > follows:
>> >
>> >   $ git clone http://git.nilfs.org/nilfs2-kmod-centos6.git
>> >   $ cd nilfs2-kmod-centos6
>> >   $ make
>> >   $ sudo make install
>> >
>> > It includes important changes and bug-fixes which are backported from
>> > newer kernels.  The kmod seems to work fine so far for me.  Check it
>> > out.
>> >
>> >
>> > Regards,
>> > Ryusuke Konishi
>> >
>> >> thanks.
>> >> Shingo TAKADA
>> >>
>> >> (11/11/10 13:20), Ryusuke Konishi wrote:
>> >>> Hi,
>> >>> On Wed, 09 Nov 2011 16:18:53 +0900, Shingo TAKADA wrote:
>> >>>> hi.
>> >>>>
>> >>>> I'm trying to use nilfs2 on Scientific Linux 6.1 with kernel
>> >>>> 2.6.32-131.17.1.el6.x86_64.
>> >>>> currently, there's no official package for SL6.1 (and RHEL6),
>> >>>> so i tried to build rpm package using CentOS 5's srpm.
>> >>>>
>> >>>> i installed nilfs-kmod-2.0.22-4.src.rpm, extract nilfs-2.0.22.tar.bz2 and
>> >>>> tried to make, but fails like:
>> >>>>
>> >>>> $ pwd
>> >>>> /tmp/rpmbuild/SOURCES/nilfs-2.0.22/fs
>> >>>> $ make -C /usr/src/kernels/2.6.32-131.17.1.el6.x86_64 M=`pwd`
>> >>>> make: Entering directory `/usr/src/kernels/2.6.32-131.17.1.el6.x86_64'
>> >>>>     LD      /tmp/rpmbuild/SOURCES/nilfs-2.0.22/fs/built-in.o
>> >>>>     CC [M]  /tmp/rpmbuild/SOURCES/nilfs-2.0.22/fs/inode.o
>> >>>> In file included from /tmp/rpmbuild/SOURCES/nilfs-2.0.22/fs/inode.c:28:
>> >>>> /tmp/rpmbuild/SOURCES/nilfs-2.0.22/fs/nilfs.h: In function ‘nilfs_init_acl’:
>> >>>> /tmp/rpmbuild/SOURCES/nilfs-2.0.22/fs/nilfs.h:234: error: dereferencing
>> >>>> pointer to incomplete type
>> >>>> make[1]: *** [/tmp/rpmbuild/SOURCES/nilfs-2.0.22/fs/inode.o] Error 1
>> >>>> make: *** [_module_/tmp/rpmbuild/SOURCES/nilfs-2.0.22/fs] Error 2
>> >>>> make: Leaving directory `/usr/src/kernels/2.6.32-131.17.1.el6.x86_64'
>> >>>>
>> >>>>
>> >>>> I installed SL6.1's kernel Source RPM(srpm) , try to make from the
>> >>>> sources in the srpm. i installed kernel-2.6.32-131.17.1.el6.src.rpm
>> >>>> using yumdownloader.
>> >>>>
>> >>>> but fails like:
>> >>>> $ pwd
>> >>>> /tmp/sl6-srpm-nilfs2
>> >>>> $ make -C /usr/src/kernels/2.6.32-131.17.1.el6.x86_64 M=`pwd`
>> >>>> make: Entering directory `/usr/src/kernels/2.6.32-131.17.1.el6.x86_64'
>> >>>>     LD      /tmp/sl6-srpm-nilfs2/built-in.o
>> >>>>     CC [M]  /tmp/sl6-srpm-nilfs2/inode.o
>> >>>>     CC [M]  /tmp/sl6-srpm-nilfs2/file.o
>> >>>>     CC [M]  /tmp/sl6-srpm-nilfs2/dir.o
>> >>>>     CC [M]  /tmp/sl6-srpm-nilfs2/super.o
>> >>>>     CC [M]  /tmp/sl6-srpm-nilfs2/namei.o
>> >>>>     CC [M]  /tmp/sl6-srpm-nilfs2/page.o
>> >>>>     CC [M]  /tmp/sl6-srpm-nilfs2/mdt.o
>> >>>>     CC [M]  /tmp/sl6-srpm-nilfs2/btnode.o
>> >>>>     CC [M]  /tmp/sl6-srpm-nilfs2/bmap.o
>> >>>>     CC [M]  /tmp/sl6-srpm-nilfs2/btree.o
>> >>>>     CC [M]  /tmp/sl6-srpm-nilfs2/direct.o
>> >>>>     CC [M]  /tmp/sl6-srpm-nilfs2/dat.o
>> >>>>     CC [M]  /tmp/sl6-srpm-nilfs2/recovery.o
>> >>>>     CC [M]  /tmp/sl6-srpm-nilfs2/the_nilfs.o
>> >>>>     CC [M]  /tmp/sl6-srpm-nilfs2/segbuf.o
>> >>>> /tmp/sl6-srpm-nilfs2/segbuf.c: In function ‘nilfs_segbuf_write’:
>> >>>> /tmp/sl6-srpm-nilfs2/segbuf.c:396: error: ‘REQ_UNPLUG’ undeclared (first
>> >>>> use in this function)
>> >>>> /tmp/sl6-srpm-nilfs2/segbuf.c:396: error: (Each undeclared identifier is
>> >>>> reported only once
>> >>>> /tmp/sl6-srpm-nilfs2/segbuf.c:396: error: for each function it appears in.)
>> >>>> make[1]: *** [/tmp/sl6-srpm-nilfs2/segbuf.o] Error 1
>> >>>> make: *** [_module_/tmp/sl6-srpm-nilfs2] Error 2
>> >>>> make: Leaving directory `/usr/src/kernels/2.6.32-131.17.1.el6.x86_64'
>> >>>
>> >>> REQ_UNPLUG was introduced by the following patch (and has gone with
>> >>> other patch).  This seems to be a difference between the vanilla
>> >>> kernel and the SL6 kernel.  Thanks for reporting.
>> >>>
>> >>> diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c
>> >>> index 2e6a272..4588fb9 100644
>> >>> --- a/fs/nilfs2/segbuf.c
>> >>> +++ b/fs/nilfs2/segbuf.c
>> >>> @@ -508,7 +508,7 @@ static int nilfs_segbuf_write(struct nilfs_segment_buffer *s
>> >>> egbuf,
>> >>>                    * Last BIO is always sent through the following
>> >>>                    * submission.
>> >>>                    */
>> >>> -               rw |= (1<<   BIO_RW_SYNCIO) | (1<<   BIO_RW_UNPLUG);
>> >>> +               rw |= REQ_SYNC | REQ_UNPLUG;
>> >>>                   res = nilfs_segbuf_submit_bio(segbuf,&wi, rw);
>> >>>           }
>> >>>
>> >>>
>> >>>> how should i do to use nilfs on SL6 environment?
>> >>>> or do you have any plan to release CentOS6 package of nilfs?
>> >>>
>> >>> We feel the necessity for creating kmod branch for the Centos6 kernel,
>> >>> but don't have concrete plan.
>> >>>
>> >>> Ok, I will try it when I have time.  Or, does anyone want to try it?
>> >>>
>> >>> Thanks,
>> >>> Ryusuke Konishi
>> >>>
>> >>>> my environment: Scientific Linux 6.1 x64 on XenServer 5.6 SP2.
>> >>>>
>> >>>> Shingo TAKADA
>> >>>> --
>> >>>> takada@xxxxxxxxxxxx
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