Coordinating Synchronization Mechanisms using Transactional Memory

A computer-implemented method, comprising:

• determining whether an indication of ownership for a portion of a shared data structure indicates one shared data modification technique or another, different, shared data modification technique for modifying the portion of a shared data structure, wherein at least one of the shared data modification technique and the another shared data modification technique uses a transaction mechanism, and wherein a block of shared memory represents current data for the portion of the shared data structure;
• attempting to modify a value of the portion of a shared data structure using the shared data modification technique if the indication of ownership indicates the one shared data modification technique;
• and
• attempting to modify the value of the portion of a shared data structure using the another shared data modification technique if the indication of ownership indicates the another shared data modification technique.

A system, comprising:

• a processor;
• and
• a memory coupled to the processor, wherein the memory comprises program instructions executable by the processor to:
• determine whether an indication of ownership for a portion of a shared data structure indicates a transactional mode or a non-transactional mode for modifying the portion of a shared data structure, wherein a block of shared memory represents current data of the portion of the shared data structure;
• attempt to modify a value of the portion of a shared data structure using a transaction if the indication of ownership indicates the transactional mode;
• and
• attempt to modify the value of the portion of a shared data structure using software operations if the indication of ownership indicates the non-transactional mode.