[FSAIO][PATCH 4/8] Add a default io wait bit field in task struct

Allocates space for the default io wait queue entry (actually a wait bit entry) in the task struct. Doing so simplifies the patches for AIO wait page allowing for cleaner and more efficient implementation, at the cost of 28 additional bytes in task struct vs allocation on demand on-stack.

[FSAIO][PATCH 4/8] Add a default io wait bit field in task struct

Allocates space for the default io wait queue entry (actually a wait bit entry) in the task struct. Doing so simplifies the patches for AIO wait page allowing for cleaner and more efficient implementation, at the cost of 28 additional bytes in task struct vs allocation on demand on-stack.