Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\quota\dquot.c Create Date:2022-07-28 20:32:50
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:find_dquot

Proto:static struct dquot *find_dquot(unsigned int hashent, struct super_block *sb, struct kqid qid)

Type:struct dquot

Parameter:

TypeParameterName
unsigned inthashent
struct super_block *sb
struct kqidqid
294  dquot = hlist_entry(node, structdquot, dq_hash)
295  If superblock this applies to == sb && qid_eq( ID this applies to (uid, gid, projid) , qid) Then Return dquot
298  Return NULL
Caller
NameDescribe
dqgetGet reference to dquot* Locking is slightly tricky here. We are guarded from parallel quotaoff()* destroying our dquot by:* a) checking for quota flags under dq_list_lock and* b) getting a reference to dquot before we release dq_list_lock