author | Florian Westphal <fw@strlen.de> |
Thu, 09 Apr 2009 12:07:21 +0200 | |
changeset 2 | d1f6d8b6f81c |
parent 0 | aa628870c1d3 |
permissions | -rw-r--r-- |
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aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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#ifndef LINUX_MM_INLINE_H |
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Port of Linux 2.6.28 for use with network simulation cradle.
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#define LINUX_MM_INLINE_H |
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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|
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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/** |
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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* page_is_file_cache - should the page be on a file LRU or anon LRU? |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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* @page: the page to test |
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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* |
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
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* Returns LRU_FILE if @page is page cache page backed by a regular filesystem, |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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* or 0 if @page is anonymous, tmpfs or otherwise ram or swap backed. |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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* Used by functions that manipulate the LRU lists, to sort a page |
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Port of Linux 2.6.28 for use with network simulation cradle.
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* onto the right LRU list. |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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* |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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* We would like to get this info without a page flag, but the state |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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* needs to survive until the page is last deleted from the LRU, which |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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* could be as far down as __page_cache_release. |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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*/ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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static inline int page_is_file_cache(struct page *page) |
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Port of Linux 2.6.28 for use with network simulation cradle.
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{ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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if (PageSwapBacked(page)) |
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Port of Linux 2.6.28 for use with network simulation cradle.
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return 0; |
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
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|
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
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/* The page is page cache backed by a normal filesystem. */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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return LRU_FILE; |
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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} |
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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|
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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static inline void |
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Port of Linux 2.6.28 for use with network simulation cradle.
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add_page_to_lru_list(struct zone *zone, struct page *page, enum lru_list l) |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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{ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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list_add(&page->lru, &zone->lru[l].list); |
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Port of Linux 2.6.28 for use with network simulation cradle.
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__inc_zone_state(zone, NR_LRU_BASE + l); |
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mem_cgroup_add_lru_list(page, l); |
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Port of Linux 2.6.28 for use with network simulation cradle.
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} |
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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|
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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static inline void |
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Port of Linux 2.6.28 for use with network simulation cradle.
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del_page_from_lru_list(struct zone *zone, struct page *page, enum lru_list l) |
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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{ |
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
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list_del(&page->lru); |
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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__dec_zone_state(zone, NR_LRU_BASE + l); |
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mem_cgroup_del_lru_list(page, l); |
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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} |
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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|
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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static inline void |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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del_page_from_lru(struct zone *zone, struct page *page) |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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{ |
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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enum lru_list l = LRU_BASE; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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|
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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list_del(&page->lru); |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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if (PageUnevictable(page)) { |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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__ClearPageUnevictable(page); |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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l = LRU_UNEVICTABLE; |
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Port of Linux 2.6.28 for use with network simulation cradle.
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} else { |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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if (PageActive(page)) { |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
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__ClearPageActive(page); |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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l += LRU_ACTIVE; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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} |
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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l += page_is_file_cache(page); |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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} |
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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__dec_zone_state(zone, NR_LRU_BASE + l); |
2 | 59 |
mem_cgroup_del_lru_list(page, l); |
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
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} |
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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|
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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/** |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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* page_lru - which LRU list should a page be on? |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
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|
64 |
* @page: the page to test |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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* |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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* Returns the LRU list a page should be on, as an index |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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* into the array of LRU lists. |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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*/ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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|
69 |
static inline enum lru_list page_lru(struct page *page) |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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{ |
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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enum lru_list lru = LRU_BASE; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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|
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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if (PageUnevictable(page)) |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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lru = LRU_UNEVICTABLE; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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|
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else { |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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changeset
|
76 |
if (PageActive(page)) |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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|
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lru += LRU_ACTIVE; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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|
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lru += page_is_file_cache(page); |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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|
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} |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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|
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|
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Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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return lru; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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} |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
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|
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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84 |
#endif |