fsnotify_get_mark

Name:Get mark reference when we found the mark via lockless traversal of object* list. Mark can be already removed from the list by now and on its way to be* destroyed once SRCU period ends.* Also pin the group so it doesn't disappear under us.

Proto:static bool fsnotify_get_mark_safe(struct fsnotify_mark *mark)

Type:bool

Parameter:

Type	Parameter	Name
struct fsnotify_mark *	mark

290

If Not mark Then Return true

293

If _inc_not_zero - increment a refcount unless it is 0*@r: the refcount to increment* Similar to atomic_inc_not_zero(), but will saturate at REFCOUNT_SATURATED* and WARN.* Provides no memory ordering, it is assumed the caller has guaranteed the Then

294

spin_lock( & Protects inode / mnt pointers, flags, masks )

295

If flags [mark->lock] & FSNOTIFY_MARK_FLAG_ATTACHED Then

297

atomic_inc( & Number of tasks waiting for user * response )

298

spin_unlock( & Protects inode / mnt pointers, flags, masks )

299

Return true

301

spin_unlock( & Protects inode / mnt pointers, flags, masks )

302

fsnotify_put_mark(mark)

304

Return false

**Caller**
Name	Describe
fsnotify_prepare_user_wait

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Function report