CVS log for pvfs2/src/server/list-eattr.sm
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Merged robust security code into Orange-Branch.

merge with Orange-Branch

move PVFS_ds_position to different types when appropriate, pass a flag around instead of using special canary values in the handle. Things will be broken for a while.

compiler warning cleanup

merge with Orange-Branch

fix to segfault in list-eattr if client provides too large of buffer, found by Mike Marshall. Also includes other changes to enforce attribute name, value and list lengths for eattr operations on the server side and list-eattr on the client side.

merged in changes from summer at LANL

merging hints/events code into trunk.

Reverse merged and ported to HEAD.

state machine permission checking code cleanup

Updated security checking in state machines.  Added flags where needed.

defined read, write, execute, and setattr capabilities

modified permission checking to use callbacks instead of flags. added custom
checks to the io and small-io state machines.

hints and events.

Big pile-o' changes to make Pete go mad.

The main changes are the implementation of the stuffed create path (now just the create state machine and operation), and the beginnings of the "unstuff" operation.

This also includes the request scheduler and state machine cleanups (required for using prelude with batch_remove) and whatever else I may have happened to change along the way.

This code is able to create files, but writing to them is almost guaranteed to break.

Sam's prelude and scheduler updates

The normal path for a server request operation is to jump to the prelude state machine, which tries schedule the request based on the handle+fsid.  This meant that the request scheduler code had a switch/case returning the handle+fsid for each request we defined.  The function was also overloaded with a readonly parameter (whether the request modified any objects on the server), and a scheduling policy parameter (as the return code), which specified whether the request scheduling could be bypassed for this request.

I moved all that to a per-request parameter structure, that gets specified within the server state machine for the request.  Now there is one array of server requests (moved to pvfs2-server-req.c) which the request scheduler and prelude state machine can poke at to get parameters (defined in the state machine for that request), and based decisions on.

The patch includes some other minor changes:

* A fix to the BMI addr ref count increment/decrement.  Previously, the addr ref count was being incremented/decremented in the prelude/final-response state machines.  That requires that those state machines get invoked, which I don't want to have to depend on.  I've moved the INC call to the unexpected_sm, and the DEC call to where the state machine gets finished in the server.  That way we don't have to worry about whether we're using prelude/final-response.

* Cleanup of the request scheduler.  The way we were changing the mode from normal to admin was sort of embedded into the request scheduling code, so we had to hack the mode change from prelude_sm instead of in setparam.  Also, the request scheduler had to be aware of the setparam fields in the request.  I've moved the mode change code to separate request scheduler and job calls.  I think something similar could be done for the timer code (it doesn't really belong in the request scheduler), but I'll leave that for another patch.

* Changed the way we compile the server binary in Makefile.in to allow for multiple object files.

minor change allows state actions to not be declared at the top of *.sm files.

Merge HEAD changes to TAS-branch.

merge of the WALT3 branch to HEAD.  This patch changes the way state actions
are represented as C structures (what statecomp generates).  It also changes
the main state action parameter from a s_op on the server or an sm_p on the client
to a unified smcb pointer (state machine control block) for all state actions (both client and server).  Finally, initial support for concurrent state machines has
been added to allow state actions to be invoked concurrently .. a first step for
server-to-server.

walt3 reverse merge from head includes merges of pw's sm changes (no state declarations), cleanup of state machine code, and other general merging/fixes.

commit of changes to acl and extended attr checking code.  Hopefully this is will be easier to extend in the future.

update to current CVS version because statecomp modifications are neat for my work, thanks!

Remove forward declarations of states.

Update migration branch to current CVS version

reverse merge of HEAD to WALT3 branch.

add hints to job layer

backmerging of HEAD to branch...

Merge HEAD into Walt's branch.
Rework new state machines to the new cleanups introduced by Walt.

move frequently used extern declaration into a header file

Reverse merges from HEAD..

Backmerge with HEAD

remove a few includes

Reverse merge changes from HEAD to posix-extensions-branch.

Simple pint/ls/cp/diff test works

Everything compiles.   Crap!  Now I have to see if it runs!!!

removing compile errors

Julian's changes to coalescing and dbpf storage options:

- Changes the coalesce code, now we decide the mode (coalesce or not) during
the coalesce function call and not during the enque process.
- Add the coalesce high / low watermark to the dbpf_collection structure, so
colls can have different values.
- Put per default the TROVE_SYNC flag into trove from different statemachines
where we used the macro before. The macro is still there and should be
removed if we agree to this behavior.
- Removes the coalesce config option
- Moves SMALL_IO_MAX_REGIONS to internal and renames it to IO_MAX_REGIONS (we
had it at least 3 times defined somewhere).

correcting compile errors

updated to support SM control block interface

Reverse merge from trunk to lockd-branch...

reverse merge of branch

merge sync coalescing branch.

reverse merge of trunk to branch

Consolidates I/O paths through VFS for read, write and readv, writev.
Move duplicated get_object_type function to pvfs2-util.h
Changed the type of a bmi local variable from int to bmi_size_t.
Since new dspace layout makes use of comparision function, update the db-dspace "hack utility" as well

fix deadlock bugs in coalescing code.  add proper state machine debugging.

removed all the keyval type stuff.  Also my prefix callback doesn't seem to be working..

merge from trunk

[pcarns]: add logic to server side enforcing attributes into a 'supported' name
space (currently: system, user, trusted, security).  Reserved keys live in
'system.pvfs2' instead of top level.  No change to wire or on-disk formats:
server does translation.

[pcarns]: Bug fix: corrected error handling paths in all server side xattr
          state machines

mostly working onekey impl

This patch adds a new system interface (listeattr) to list the extended attributes
of a file.
Also adds support in the VFS kernel module to support the listxattr
system call and a bunch of test programs to debug these.

Updated the FAQ to reflect usage of xattrs through VFS and acls through
VFS.