Hash_for_each_rcu
WebFrom: Greg Kroah-Hartman To: [email protected] Cc: Greg Kroah-Hartman , [email protected], Eric Dumazet , Jakub Kicinski , Sasha Levin Subject: [PATCH 6.2 047/173] raw: use net_hash_mix() in hash … WebWhen a process exits, release_task() calls list_del_rcu(&p->tasks) via __exit_signal() and __unhash_process() under tasklist_lock writer lock protection. The list_del_rcu() invocation removes the task from the list of all tasks. The tasklist_lock prevents concurrent list additions/removals from corrupting the list. Readers using for_each_process() are not …
Hash_for_each_rcu
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Webreq.hash. STRING, can only be set (cannot be read or unset). Hash value for the object. The hash determines what is unique about an object. Anything added to the hash will … Web* hash_for_each_rcu - iterate over a rcu enabled hashtable: 133 * @name: hashtable to iterate: 134 * @bkt: integer to use as bucket loop cursor: 135 * @obj: the type * to use as …
WebNov 12, 2013 · The traditional way of implementing a hash table is to have an array of linked lists. However, user-space RCU instead uses a split-ordered list, which provides a lock … WebHash tables are often implemented as an array, where each array entry has a linked-list hash chain. Each hash chain can be protected by RCU as described in the listRCU.txt …
WebNov 23, 2008 · A followup patch will cleanup all sk_node fields and macros that are not used anymore. Thanks [PATCH] net: Convert TCP/DCCP listening hash tables to use RCU This is the last step to be able to perform full RCU lookups in __inet_lookup () : After established/timewait tables, we add RCU lookups to listening hash table. WebThe three hash_for_each_xxx() helper iterate the hash table with help of hlist_for_each_entry_xxx(), which breaks the loop only when obj is NULL. This means …
WebNov 25, 2024 · When reading/updating MyStruct via hashtable, I do as shown below. rcu_read_lock () /* For hashtable 'MyHash' */ hash_for_each_possible_rcu (MyHash, …
Web+ * hash_for_each_possible_rcu_notrace - iterate over all possible objects hashing + * to the same bucket in an rcu enabled hashtable in a rcu enabled hashtable + * @name: hashtable to iterate + * @obj: the type * to use as a loop cursor for each entry can menopause affect memoryWebNov 30, 2024 · * list_for_each_rcu - Iterate over a list in an RCU-safe fashion * @pos: the &struct list_head to use as a loop cursor. * @head: the head for your list. */ ... * Mostly useful for hash tables where the two pointer list head is * too wasteful. * You lose the ability to access the tail in O(1). */ can menopause affect fingernailsWebFeb 16, 2024 · Employing the Hash#each_value Method. The Hash#each_value method can be a powerful tool for Ruby contract developers. It is part of the Ruby core library and allows you to iterate over all values contained in a hash without having to reference each key. This can make your code more efficient and readable, which is a big plus for any … fixed point roundingWebExisting RCU-based hash tables use open chaining, with RCU-based linked lists for each hash bucket. These tables support insertion, removal, and lookup operations [13]. Our previous work introduced an algorithm to move hash items between hash buckets due to a change in the key [24,23], making RCU-based hash tables even more broadly usable ... fixed point roof rack limitWebJan 7, 2008 · Read-copy update (RCU) is a synchronization mechanism that was added to the Linux kernel in October of 2002. RCU is most frequently described as a replacement for reader-writer locking, but has also been used in a number of other ways. can menopause affect your bowelsWeb((1 << ) - 1)] = HLIST_HEAD_INIT} #define DECLARE_HASHTABLE(name, bits) \ struct hlist_head name[1 << ] #define HASH_SIZE(name) (ARRAY_SIZE(name)) #define … fixed point rotationWeb1. Hash Table, also known as the scatter list, is based on the (key, value) key values to access the data structure. The main purpose is to improve the efficiency of query. For … fixed point resolution not good