Sam Vilain wrote:
This patchset allows per-VFS mount options, such as noatime,
nodiratime, and in partitular, read-only.
ie, `mount -o ro --bind` can work with this patch.
This is the invention of Herbert Pötzl.
So, here's what's new;
1. more parts
Even more fine grained :-)
2. longer descriptions
Following the TPP document to the letter, and I hope my descriptive
re-expressions of concept improve chances of acceptance and do not
seem too long.
3. patch 8 is a new piece, though I see now from http://xrl.us/j8dk that
this was not an accidental omission.
Still outstanding changes before next LKML submission;
1. add file_readonly() helper - Christopher Hellwig
http://xrl.us/j8ck
2. audit uses of permission() - Trond Myklebust
(second audit requirement now not relevant)
http://xrl.us/j8ck
a simple
find . \( -name \*.h -o -name \*.c \) -print |
xargs grep 'permission *(' |
grep -w permission | grep NULL
happens to catch all of these. They happen in:
fs/hpfs/namei.c
fs/nfsd/vfs.c (twice)
fs/nfsd/nfsfh.c
fs/namei.c
fs/xattr.c
ipc/mqueue.c
3. split out "am I allowed to write to FS" from permission() -
Christopher Hellwig
http://xrl.us/j8cu
This seems to be similar to what Trond is getting at, that nameidata
is optional to permission, and so therefore it seems like the wrong
place to put it.
This might be seen to apply to all of the changes in part 7 of this
series.
Anyway, I'm putting this one down for a few days so as not to step on
your toes - I hope this helps your efforts, Herbert. If you want to
download them, you can get them from:
http://vserver.utsl.gen.nz/patches/utsl/2.6.16-rc4-BME/
(.tar.gz one level up)
Having said that, it's very easy for me to apply small changes and
regenerate the set, so let me know if you want me to help in this way.
In any case, this effort has been thoroughly enlightening for me as to
how the submission process works, and I hope it will help me as I now
focus my work on features in the main patch.
Sam.
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