* Global grace period counter.
* Contains the current RCU_GP_CTR_BIT.
* Also has a RCU_GP_CTR_BIT of 1, to accelerate the reader fast path.
* Global grace period counter.
* Contains the current RCU_GP_CTR_BIT.
* Also has a RCU_GP_CTR_BIT of 1, to accelerate the reader fast path.
* 0 quiescent state. Failure to do so could result in the writer
* waiting forever while new readers are always accessing data (no
* progress).
* 0 quiescent state. Failure to do so could result in the writer
* waiting forever while new readers are always accessing data (no
* progress).
* committing qparity update to memory. Failure to do so could result in
* the writer waiting forever while new readers are always accessing
* data (no progress).
* committing qparity update to memory. Failure to do so could result in
* the writer waiting forever while new readers are always accessing
* data (no progress).
* 1 quiescent state. Failure to do so could result in the writer
* waiting forever while new readers are always accessing data (no
* progress).
* 1 quiescent state. Failure to do so could result in the writer
* waiting forever while new readers are always accessing data (no
* progress).