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Age	Commit message (Collapse)	Author
2018-01-24	mru: Replace mru.[ch] with list.h implementation	Gargi Sharma
	Replace the custom calls to mru.[ch] with calls to list.h. This patch is the final step in removing the mru API completely and inlining the logic. This patch leads to significant code reduction and the mru API hence, is not a useful abstraction anymore. Signed-off-by: Gargi Sharma <gs051095@gmail.com> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-01	mru: use double-linked list from list.h	Olga Telezhnaya
	Simplify mru.[ch] and related code by reusing the double-linked list implementation from list.h instead of a custom one. This commit is an intermediate step. Our final goal is to get rid of mru.[ch] at all and inline all logic. Mentored-by: Christian Couder <christian.couder@gmail.com> Mentored by: Jeff King <peff@peff.net> Signed-off-by: Olga Telezhnaia <olyatelezhnaya@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-29	add generic most-recently-used list	Jeff King
	There are a few places in Git that would benefit from a fast most-recently-used cache (e.g., the list of packs, which we search linearly but would like to order based on locality). This patch introduces a generic list that can be used to store arbitrary pointers in most-recently-used order. The implementation is just a doubly-linked list, where "marking" an item as used moves it to the front of the list. Insertion and marking are O(1), and iteration is O(n). There's no lookup support provided; if you need fast lookups, you are better off with a different data structure in the first place. There is also no deletion support. This would not be hard to do, but it's not necessary for handling pack structs, which are created and never removed. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>