atomic_sub

Name:atomic_sub

Proto:static inline void atomic_sub(int i, atomic_t *v)

Type:void

Parameter:

Type	Parameter	Name
int	i
atomic_t *	v

150

kasan_check_write(v, size of v )

151

arch_atomic_sub - subtract integer from atomic variable*@i: integer value to subtract*@v: pointer of type atomic_t* Atomically subtracts @i from @v.

**Caller**
Name	Describe
should_fail	This code is stolen from failmalloc-1.0* http://www.nongnu.org/failmalloc/
queued_read_lock_slowpath	queued_read_lock_slowpath - acquire read lock of a queue rwlock*@lock: Pointer to queue rwlock structure
freeque	que() wakes up waiters on the sender and receiver waiting queue,* removes the message queue from message queue ID IDR, and cleans up all the* messages associated with this queue.* msg_ids.rwsem (writer) and the spinlock for this message queue are held
do_msgrcv
scale_cookie_change	We scale the qd down faster than we scale up, so we need to use this helper* to adjust the scale_cookie accordingly so we don't prematurely get* scale_cookie at DEFAULT_SCALE_COOKIE and unthrottle too much
atomic_long_sub

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