Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\mbcache.c Create Date:2022-07-28 20:29:33
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:mb_cache_entry_delete - remove a cache entry*@cache - cache we work with*@key - key*@value - value* Remove entry from cache @cache with key @key and value @value.

Proto:void mb_cache_entry_delete(struct mb_cache *cache, unsigned int key, u64 value)

Type:void

Parameter:

TypeParameterName
struct mb_cache *cache
unsigned intkey
u64value
233  head = mb_cache_entry_head(cache, key)
234  hlist_bl_lock(head)
236  If Key in hash - stable during lifetime of the entry == key && User provided value - stable during lifetime of the entry == value Then
238  hlist_bl_del_init( & Hash table list - protected by hash chain bitlock )
239  hlist_bl_unlock(head)
240  spin_lock( & Protects c_list, c_entry_count )
241  If Not list_empty - tests whether a list is empty*@head: the list to test. Then
242  list_del_init - deletes entry from list and reinitialize it.*@entry: the element to delete from the list.
243  If Not WARN_ONCE(Number of entries in cache == 0, "mbcache: attempt to decrement c_entry_count past zero") Then Number of entries in cache --
246  atomic_dec( & e_refcnt)
248  spin_unlock( & Protects c_list, c_entry_count )
249  mb_cache_entry_put(cache, entry)
250  Return
253  hlist_bl_unlock(head)