Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\seqlock.h Create Date:2022-07-28 05:35:23
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:aw_seqcount_begin - begin a seq-read critical section*@s: pointer to seqcount_t* Returns: count to be passed to read_seqcount_retry* raw_seqcount_begin opens a read critical section of the given seqcount

Proto:static inline unsigned raw_seqcount_begin(const seqcount_t *s)

Type:unsigned

Parameter:

TypeParameterName
const seqcount_t *s
184  ret = READ_ONCE(sequence)
185  smp_rmb()
186  Return ret & ~1
Caller
NameDescribe
dget_parent
__d_lookup_rcu__d_lookup_rcu - search for a dentry (racy, store-free)*@parent: parent dentry*@name: qstr of name we wish to find*@seqp: returns d_seq value at the point where the dentry was found* Returns: dentry, or NULL* __d_lookup_rcu is the dcache lookup function