". afs_dentry_iput is essentially osi_iput, so it now calls osi_iput
it wasnt locking before checking i_count (and osi_iput didnt either)
osi_iput now AFS_GLOCK's. to do this afs_delete_inode was split
into afs_delete_inode (which does the locking) and osi_clear_inode
before osi_iput called afs_delete_inode, which since it wanted
to hold AFS_GLOCK, osi_iput couldnt call AFS_GLOCK. this seems
to have cured the problem i saw (running multiple 'ls -R &' would
cause a bad iput w/o fail) and i hope it fixes it otherwise.
its possible vc->lock should be held inside osi_clear_inode.
. removed osi_notify_change (i added during 2.4.0 development) and
now i just call inode_change_ok/inode_setattr. the 2.4.0
notify_change checks the dentry parent (which doenst exist for
the cache inodes)
. moved the locks around inside writepage, writepage_sync, commit_write.
the guy next door complained about pauses while running afs. i think
this addresses those issues. apparently you only need to lock_kernel()
during commit_write(). in order to get lock_kernel() inside AFS_GLOCK()
the AFS_GLOCK() was moved out of writepage_sync and into writepage
and commit_write"
This patch causes the bosserver to use a "BosConfig.new" file if one is
found on startup, which will allow admins to prepare a new BosConfig
file to be picked up at rebozo time. (This is not possible now because
the bosserver likes overwriting the BosConfig file while it's running)
This patch enables the bosserver to be placed in a restricted mode in
which AFS superusers are only granted limited access to the server host.
The following functionality is disabled when restricted mode is in use:
bos exec
bos getlog (except for files with no '/'s in their name)*
bos create *
bos delete
bos install
bos uninstall
* specific exceptions are made for functionality that "bos salvage" uses:
a cron bnode who's name is "salvage-tmp", time is now, and command begins with
"/usr/afs/bin/salvager" may be created. This bnode deletes itself when
complete, so no special "delete" support is needed. This functionality
may be removed in the future if a "Salvage" RPC is implimented.
The file with the exact path /usr/afs/logs/SalvageLog may be fetched,
since that is how bos salvage [...] -showlog is implimented.
Restricted mode is enabled using a new bos command (bos setrestricted)
or bossever command line switch (bosserver -restricted). Restricted mode
can be disabled by a) sending the bosserver process a SIGFPE (which will
then allow restricted operations until the next restart or setrestricted
command) or b) editing /usr/afs/local/BosConfig (or BosConfig.new), and
restarting the bosserver.
"The following patch is to addresses problems with the Drive Letters tabs in
the AFS Client and AFS Control Panel when using submounts which start with
the letters afs. We had a test cell up and running with a name that started
with afs01 and this caused the afs client to misbehave."
Make krb_udp try kerberos-iv as a fallback (from the original default of
kerberos4) before going to "kerberos". "kerberos" incidentally is 88 on all
modern platforms, so lord forbid you want to run this and something which
can actually answer krb5 requests, if you're using the default services.
Also minor fix for the size of an answer packet.
The net effect being that since all pioctls will have the same values across
platforms, so AFS userland binaries can be used on an Arla system and vice-versa
"The problem that it fixes is as follows: suppose user A's process maps
something into its address space out of AFS. Now if user B runs "ps",
or otherwise reads /proc/NNN/status, the kernel code will lock the
associated entry in /proc and then proceed to find the size of the
address space for that process; in doing so, it calls getattr(). If B
does not have tokens to access the file, the fileserver will eventually
start delaying responses to FetchStatus requests, and the kernel will
block with /proc locked.
The user-visible effect is that "ps", "w" and so on start blocking
uninterruptibly for long periods of time."
This makes it possible to have encryption enabled, but does not
expose an interface to do so. That will follow tomorrow, when
hopefully OpenAFS and Arla will have synchronized pioctls allowing
userspace compatibility
FAST_RESTART ifdef'd code omits salvage at restart. -DontSalvage must be
added to salvager args in the bos configuration
BITMAPS_LATER ifdef'd code lets the fileserver create the bitmaps for
free vnodes only on demand, so the fileserver may start faster.
