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Chris Mason
[ANNOUNCE] Btrfs v0.12 released
Hello everyone, I wasn't planning on releasing v0.12 yet, and it was supposed to have some initial support for multiple devices. But, I have made a number of performance fixes and small bug fixes, and I wanted to get them out there before the (destabilizing) work on multiple-devices took over. So, here's v0.12. It comes with a shiny new disk format (sorry), but the gain is dramatically better random writes to existing files. In testing here, the random write phase of tiobench went from 1M...
Feb 6, 1:00 pm 2008
Serge E. Hallyn
Re: [patch 07/10] unprivileged mounts: add sysctl tunable fo...
Thanks, Miklos, good explanations in the docs. Acked-by: Serge Hallyn <serue@us.ibm.com> Yikes, this could be a problem for containers, as it's simply tied to uid 0, whereas tying it to a capability would let us solve it with capability bounds. This might mean more urgency to get user namespaces working at least with sysfs, else this is a quick way around having CAP_SYS_ADMIN taken -
Feb 6, 4:21 pm 2008
Miklos Szeredi
Re: [patch 07/10] unprivileged mounts: add sysctl tunable fo...
I think I understand the problem, but not the solution. How do user namespaces going to help? Maybe sysctls just need to check capabilities, instead of uids. I think that would make a lot of sense anyway. Thanks, Miklos -
Feb 6, 5:11 pm 2008
Serge E. Hallyn
Re: [patch 07/10] unprivileged mounts: add sysctl tunable fo...
Well it somewhat depends on how we implement userns for filesystems in the first place, and whether we end up splitting sysfs into sub-filesystems as I think Eric Biederman has been advocating. My thoughts had been running along the lines of just tagging vfsmounts with userns of the mounting process. A task from outside the mounting process' namespace would get user other permissions whether or not its uid was the owning uid or uid 0 (unless the task had CAP_NS_OVERRIDE). But really it gets mor...
Feb 6, 6:45 pm 2008
Jan Kara
Re: [NFS] [PATCH] Make UDF exportable
Have you ever tried this? I think this could never work. UDF doesn't have entry named .. in a directory. You have to search for an entry that has in fileCharacteristics set bit FID_FILE_CHAR_PARENT. Maybe you could hack-around udf_find_entry() to recognize .. dentry and do the search Otherwise the patch looks fine. But please rediff the patch against Andrew's development tree (or -mm) because there are some cleanups there... Thanks. Honza -- Jan Kara <jack@suse.cz> SUSE Labs,...
Feb 6, 2:08 pm 2008
Rasmus Rohde
Re: [NFS] [PATCH] Make UDF exportable
Probably not. I just tested that I could read files and navigate the directory structure. However looking into UDF I think you are right - it will fail. I have extended udf_find_entry() to do an explicit check based on fileCharacteristics as you propose. Certainly there are. New patch against 2.6.24-mm1: Signed-off-by: Rasmus Rohde <rohde@duff.dk> diff -uprN -X linux-2.6.24-mm1-vanilla/Documentation/dontdiff linux-2.6.24-mm1-vanilla/fs/udf/namei.c linux-2.6.24-mm1/fs/udf/namei.c --- linux-...
Feb 6, 4:58 pm 2008
Rabeeh Khoury
RE: NFSD on XFS with RT subvolume
I didn't mention that I'm using ARM EABI machine for that; but the same scenario happened on Ubuntu Gutsy 7.10. The serial console stops responding, but getting Sysrq with showPc function working I'v got some stack traces (Look for #stack-trace below). I'm running Fedora-8 on the ARM machine using xfsprogs-2.9.4-4.f8 RPM. The output of formatting /dev/sda5 and /dev/sda6 as the rt-subvolume is the following, but this time /dev/sda5 is 2GByte and /dev/sda6 is 20GByte (look for #mkfs.xfs). Anoth...
Feb 6, 10:08 am 2008
Christoph Hellwig
Re: projected date for mount.cifs to support DFS junction po...
So I've done an extensive review now, but the patches (or rather an incomplete set, that's even dumber) made it into Linus tree without things beeing addressed. That's not how it's supposed to work. -
Feb 6, 12:07 am 2008
Steve French
Re: projected date for mount.cifs to support DFS junction po...
I only remember missing a loop unwinding on exit style comment of yours that was not addressed in what got integrated. I will go back through your notes again to see if I missed one. I meant to merge the final patch last week but ran out of time. Will try to finish that this week. -- Thanks, Steve -
Feb 6, 9:43 am 2008
Jan Kara
Re: [RESEND] [PATCH] ext3,4:fdatasync should skip metadata w...
Yes, the patch looks fine. You can add Acked-by: Jan Kara <jack@suse.cz> if you wish. -- Jan Kara <jack@suse.cz> SuSE CR Labs -
Feb 6, 12:22 pm 2008
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