linux-stable.git/fs/nfs/callback_proc.c, branch linux-3.7.y

nfs: avoid dereferencing null pointer in initiate_bulk_draining

2013-01-11T17:18:38+00:00

commit ecf0eb9edbb607d74f74b73c14af8b43f3729528 upstream.

Fix an inverted null pointer check in initiate_bulk_draining().

Signed-off-by: Nickolai Zeldovich 
Signed-off-by: Trond Myklebust 
Signed-off-by: Greg Kroah-Hartman

NFSv4.1: Clean up the removal of pnfs_layout_hdr from the server list

2012-09-28T20:03:14+00:00

Move the code into pnfs_free_layout_hdr(), and add checks to
get_layout_by_fh_locked to ensure that they don't reference a layout
that is being freed.

Signed-off-by: Trond Myklebust

NFSv4.1: Cleanup; add "pnfs_" prefix to get_layout_hdr() and put_layout_hdr()

2012-09-28T20:03:07+00:00

Signed-off-by: Trond Myklebust

NFSv4.1: Cleanup add a "pnfs_" prefix to mark_matching_lsegs_invalid

2012-09-28T20:03:06+00:00

Signed-off-by: Trond Myklebust

NFSv4: Further clean-ups of delegation stateid validation

2012-03-06T15:32:44+00:00

Change the name to reflect what we're really doing: testing two
stateids for whether or not they match according the the rules in
RFC3530 and RFC5661.
Move the code from callback_proc.c to nfs4proc.c

Signed-off-by: Trond Myklebust

NFSv4.1: Fix matching of the stateids when returning a delegation

2012-03-06T15:32:44+00:00

nfs41_validate_delegation_stateid is broken if we supply a stateid with
a non-zero sequence id. Instead of trying to match the sequence id,
the function assumes that we always want to error. While this is
true for a delegation callback, it is not true in general.

Also fix a typo in nfs4_callback_recall.

Reported-by: Andy Adamson 
Signed-off-by: Trond Myklebust

SUNRPC: Use RCU to dereference the rpc_clnt.cl_xprt field

2012-03-02T20:36:38+00:00

A migration event will replace the rpc_xprt used by an rpc_clnt.  To
ensure this can be done safely, all references to cl_xprt must now use
a form of rcu_dereference().

Special care is taken with rpc_peeraddr2str(), which returns a pointer
to memory whose lifetime is the same as the rpc_xprt.

Signed-off-by: Trond Myklebust 
[ cel: fix lockdep splats and layering violations ]
[ cel: forward ported to 3.4 ]
[ cel: remove rpc_max_reqs(), add rpc_net_ns() ]
Signed-off-by: Chuck Lever 
Signed-off-by: Trond Myklebust

NFSv4.1: Get rid of NFS4CLNT_LAYOUTRECALL

2012-03-01T16:17:50+00:00

The NFS4CLNT_LAYOUTRECALL bit is a long-term impediment to scalability. It
basically stops all other recalls by a given server once any layout recall
is requested.

If the recall is for a different file, then we don't care.
If the recall applies to the same file, then we're in one of two situations:
Either we are in the case of a replay of an existing request, in which case
the session is supposed to deal with matters, or we are dealing with a
completely different request, in which case we should just try to process
it.

Signed-off-by: Trond Myklebust

NFS: search for client session id in proper network namespace

2012-02-06T23:48:04+00:00

Network namespace is taken from request transport and passed as a part of
cb_process_state structure.

Signed-off-by: Stanislav Kinsbursky 
Signed-off-by: Trond Myklebust

pnfs: clean up initiate_file_draining layout lookup

2012-02-01T00:28:22+00:00

Fixes the following compiler warning:

fs/nfs/callback_proc.c: In function 'do_callback_layoutrecall':
fs/nfs/callback_proc.c:115:26: warning: 'lo' may be used uninitialized in this function

Reported-by: Jim Rees 
Signed-off-by: Benny Halevy 
Signed-off-by: Trond Myklebust