linux-toradex.git/net/tipc/name_table.c, branch v3.4.30

tipc: Revert name table translation optimization

2012-02-24T22:05:17+00:00

Restores name table translation using a non-zero domain that is
"out of scope", which was broken by an earlier commit
(5d9c54c1e9ececcf7e99c4f014f9bec7ee3a7def). Comments have now been
added to the name table translation routine to make it clear that
there are actually three possible outcomes to a translation request
(found/not found/deferred), rather than just two (found/not found).

Note that a straightforward revert of the earlier commit is not
possible, as other changes to the name table translation logic
have occurred since the incorrect optimization was made.

Signed-off-by: Allan Stephens 
Signed-off-by: Paul Gortmaker

tipc: Add check to prevent insertion of duplicate name table entries

2012-02-24T22:05:14+00:00

Adds a new check to TIPC's name table logic to reject any attempt to
create a new name publication that is identical to an existing one.
(Such an attempt will never happen under normal circumstances, but
could arise if another network node malfunctions and issues a duplicate
name publication message.)

Signed-off-by: Allan Stephens 
Signed-off-by: Paul Gortmaker

tipc: Simplify enforcement of reserved name type prohibition

2012-02-24T22:05:14+00:00

Streamlines the logic that prevents an application from binding a
reserved TIPC name type to a port by moving the check to the code
that handles a socket bind() operation. This allows internal TIPC
subsystems to bind a reserved name without having to set an atomic
flag to gain permission to use such a name. (This simplification is
now possible due to the elimination of support for TIPC's native API.)

Signed-off-by: Allan Stephens 
Signed-off-by: Paul Gortmaker

tipc: rename struct subscription to struct tipc_subscription

2011-12-30T02:53:29+00:00

Make this rename so that it is consistent with the majority
of the other tipc structs and to assist in removing any
ambiguity with other similar names in other subsystems.

Signed-off-by: Paul Gortmaker

tipc: rename struct port_list to struct tipc_port_list

2011-12-30T02:53:29+00:00

Make this rename so that it is consistent with the majority
of the other tipc structs and to assist in removing any
ambiguity with other similar names in other subsystems.

Signed-off-by: Paul Gortmaker

tipc: Eliminate checks for empty zone list during name translation

2011-06-24T20:18:16+00:00

Gets rid of a pair of checks to see if a name sequence entry in
TIPC's name table has an empty zone list. These checks are pointless
since the zone list can never be empty (i.e. as soon as the list
becomes empty the associated name sequence entry is deleted).

Signed-off-by: Allan Stephens 
Signed-off-by: Paul Gortmaker

tipc: Convert name table publication lists to standard kernel lists

2011-06-24T20:18:16+00:00

Modifies the main circular linked lists of publications used in TIPC's
name table to use the standard kernel linked list type. This change
simplifies the deletion of an existing publication by eliminating
the need to search up to three lists to locate the publication.
The use of standard list routines also helps improve the readability
of the name table code by make it clearer what each list operation
being performed is actually doing.

Signed-off-by: Allan Stephens 
Signed-off-by: Paul Gortmaker

tipc: Partition name table instance array info into two parts

2011-06-24T20:18:16+00:00

Modifies the name table array structure that contains the name
sequence instances for a given name type so that the publication
lists associated with a given instance are stored in a dynamically
allocated structure, rather than being embedded within the array
entry itself. This change is being done for several reasons:

1) It reduces the amount of data that needs to be copied whenever
a given array is expanded or contracted to accommodate the first
publication of a new name sequence or the removal of the last
publication of an existing name sequence.

2) It reduces the amount of memory associated with array entries that
are currently unused.

3) It facilitates the upcoming conversion of the publication lists
from TIPC-specific circular lists to standard kernel lists. (Standard
lists cannot be used with the former array structure because the
relocation of array entries during array expansion and contraction
would corrupt the lists.)

Note that, aside from introducing a small amount of code to dynamically
allocate and free the structure that now holds publication list info,
this change is largely a simple renaming exercise that replaces
references to "sseq->LIST" with "sseq->info->LIST" (or "info->LIST").

Signed-off-by: Allan Stephens 
Signed-off-by: Paul Gortmaker

tipc: remove extraneous braces from single statements

2011-01-01T21:57:57+00:00

Cleans up TIPC's source code to eliminate the presence of unnecessary
use of {} around single statements.

These changes are purely cosmetic and do not alter the operation of TIPC
in any way.

Signed-off-by: Allan Stephens 
Signed-off-by: Paul Gortmaker 
Signed-off-by: David S. Miller

tipc: remove zeroing assignments to static global variables

2011-01-01T21:57:57+00:00

Cleans up TIPC's source code to eliminate the needless initialization
of static variables to zero.

These changes are purely cosmetic and do not alter the operation of TIPC
in any way.

Signed-off-by: Allan Stephens 
Signed-off-by: Paul Gortmaker 
Signed-off-by: David S. Miller