reason:
Since we decoupled counting and sem count,
we changed the meanings of three key global variables:
g_iob_count: A positive number indicates the available number
of IOBs, while a negative number indicates the number of waiters in iob_alloc (when throttle == false).
g_throttle_wait: Represents the number of waiters in
iob_alloc (when throttle == true), and it will not be negative.
g_qentry_wait: Represents the number of waiters for
qentry, and it will not be negative.
Signed-off-by: hujun5 <hujun5@xiaomi.com>
hujun5
9f835f63bd