Chris Mason wrote:
On Tue, 2008-12-09 at 15:22 -0500, jim owens wrote:
I have been working on changing the xattr code with the first
step getting it functioning properly when selinux is enabled
so we can see just how costly btrfs xattrs are in actual use.
Not really on topic, but how are things broken today with selinux?
With selinux enabled you can not create any files on
a btrfs filesystem (as of dec9 git tree with fedora 9),
even as root!
There are 2 things needed to make it work:
1) the /etc/selinux load-into-kernel database must be
patched to recognize btrfs has xattrs. One of our
security people, Paul Moore, has submitted it to
the upstream refpolicy. But it won't be merged
until I finish my testing.
After the database is patched, the dec9 git tree
will allow file create on btrfs... but the selinux
xattrs are not set. Thus "cp -a" will copy the
files but all "selinux context" values are wrong.
2) I have btrfs patches to interface correctly with
the LSM so we save the selinux context. I'll be
sending them up as soon as I have finished testing.
jim
P.S. sane people just disable selinux on install :)
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