mirror of https://gitee.com/openkylin/linux.git
lru_cache.h: fix comments referring to ts_ instead of lc_
For some time we contemplated calling the "struct lru_cache" a "struct tracked_set", and some comments kept the ts_ prefix. Fix those to match the member field names. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
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@ -139,9 +139,9 @@ write intent log information, three of which are mentioned here.
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* .list is on one of three lists:
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* in_use: currently in use (refcnt > 0, lc_number != LC_FREE)
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* lru: unused but ready to be reused or recycled
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* (ts_refcnt == 0, lc_number != LC_FREE),
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* (lc_refcnt == 0, lc_number != LC_FREE),
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* free: unused but ready to be recycled
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* (ts_refcnt == 0, lc_number == LC_FREE),
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* (lc_refcnt == 0, lc_number == LC_FREE),
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*
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* an element is said to be "in the active set",
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* if either on "in_use" or "lru", i.e. lc_number != LC_FREE.
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@ -160,8 +160,8 @@ struct lc_element {
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struct hlist_node colision;
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struct list_head list; /* LRU list or free list */
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unsigned refcnt;
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/* back "pointer" into ts_cache->element[index],
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* for paranoia, and for "ts_element_to_index" */
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/* back "pointer" into lc_cache->element[index],
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* for paranoia, and for "lc_element_to_index" */
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unsigned lc_index;
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/* if we want to track a larger set of objects,
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* it needs to become arch independend u64 */
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@ -190,8 +190,8 @@ struct lru_cache {
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/* Arbitrary limit on maximum tracked objects. Practical limit is much
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* lower due to allocation failures, probably. For typical use cases,
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* nr_elements should be a few thousand at most.
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* This also limits the maximum value of ts_element.ts_index, allowing the
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* 8 high bits of .ts_index to be overloaded with flags in the future. */
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* This also limits the maximum value of lc_element.lc_index, allowing the
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* 8 high bits of .lc_index to be overloaded with flags in the future. */
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#define LC_MAX_ACTIVE (1<<24)
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/* statistics */
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