diff options
Diffstat (limited to 'include/linux/rhashtable.h')
| -rw-r--r-- | include/linux/rhashtable.h | 38 |
1 files changed, 17 insertions, 21 deletions
diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h index 1f8ad121eb434..4e1f535c2034e 100644 --- a/include/linux/rhashtable.h +++ b/include/linux/rhashtable.h @@ -836,9 +836,8 @@ out: * * It is safe to call this function from atomic context. * - * Will trigger an automatic deferred table resizing if the size grows - * beyond the watermark indicated by grow_decision() which can be passed - * to rhashtable_init(). + * Will trigger an automatic deferred table resizing if residency in the + * table grows beyond 70%. */ static inline int rhashtable_insert_fast( struct rhashtable *ht, struct rhash_head *obj, @@ -866,9 +865,8 @@ static inline int rhashtable_insert_fast( * * It is safe to call this function from atomic context. * - * Will trigger an automatic deferred table resizing if the size grows - * beyond the watermark indicated by grow_decision() which can be passed - * to rhashtable_init(). + * Will trigger an automatic deferred table resizing if residency in the + * table grows beyond 70%. */ static inline int rhltable_insert_key( struct rhltable *hlt, const void *key, struct rhlist_head *list, @@ -890,9 +888,8 @@ static inline int rhltable_insert_key( * * It is safe to call this function from atomic context. * - * Will trigger an automatic deferred table resizing if the size grows - * beyond the watermark indicated by grow_decision() which can be passed - * to rhashtable_init(). + * Will trigger an automatic deferred table resizing if residency in the + * table grows beyond 70%. */ static inline int rhltable_insert( struct rhltable *hlt, struct rhlist_head *list, @@ -922,9 +919,8 @@ static inline int rhltable_insert( * * It is safe to call this function from atomic context. * - * Will trigger an automatic deferred table resizing if the size grows - * beyond the watermark indicated by grow_decision() which can be passed - * to rhashtable_init(). + * Will trigger an automatic deferred table resizing if residency in the + * table grows beyond 70%. */ static inline int rhashtable_lookup_insert_fast( struct rhashtable *ht, struct rhash_head *obj, @@ -981,9 +977,8 @@ static inline void *rhashtable_lookup_get_insert_fast( * * Lookups may occur in parallel with hashtable mutations and resizing. * - * Will trigger an automatic deferred table resizing if the size grows - * beyond the watermark indicated by grow_decision() which can be passed - * to rhashtable_init(). + * Will trigger an automatic deferred table resizing if residency in the + * table grows beyond 70%. * * Returns zero on success. */ @@ -1134,8 +1129,8 @@ static inline int __rhashtable_remove_fast( * walk the bucket chain upon removal. The removal operation is thus * considerable slow if the hash table is not correctly sized. * - * Will automatically shrink the table via rhashtable_expand() if the - * shrink_decision function specified at rhashtable_init() returns true. + * Will automatically shrink the table if permitted when residency drops + * below 30%. * * Returns zero on success, -ENOENT if the entry could not be found. */ @@ -1156,8 +1151,8 @@ static inline int rhashtable_remove_fast( * walk the bucket chain upon removal. The removal operation is thus * considerable slow if the hash table is not correctly sized. * - * Will automatically shrink the table via rhashtable_expand() if the - * shrink_decision function specified at rhashtable_init() returns true. + * Will automatically shrink the table if permitted when residency drops + * below 30% * * Returns zero on success, -ENOENT if the entry could not be found. */ @@ -1273,8 +1268,9 @@ static inline int rhashtable_walk_init(struct rhashtable *ht, * For a completely stable walk you should construct your own data * structure outside the hash table. * - * This function may sleep so you must not call it from interrupt - * context or with spin locks held. + * This function may be called from any process context, including + * non-preemptable context, but cannot be called from softirq or + * hardirq context. * * You must call rhashtable_walk_exit after this function returns. */ |