__fget_light

Name:Lightweight file lookup - no refcnt increment if fd table isn't shared.* You can use this instead of fget if you satisfy all of the following* conditions:* 1) You must call fput_light before exiting the syscall and returning control* to userspace (i

Proto:static unsigned long __fget_light(unsigned int fd, fmode_t mask)

Type:unsigned long

Parameter:

Type	Parameter	Name
unsigned int	fd
fmode_t	mask

767

770

If atomic_read( & ad mostly part) == 1 Then

771

file = The caller must ensure that fd table isn't shared or hold rcu or file lock

772

If Not file || Value for the false possibility is greater at compile time(f_mode & mask) Then Return 0

774

Return file

775

Else

776

file = __fget(fd, mask, 1)

777

If Not file Then Return 0

779

Return FDPUT_FPUT | file

**Caller**
Name	Describe
__fdget
__fdget_raw

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