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| author | Geliang Tang <geliangtang@163.com> | 2016-01-14 15:20:51 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-14 16:00:49 -0800 |
| commit | c8ad6302c2b664e73f0abb3517c16531e294b9d7 (patch) | |
| tree | 9d77e818a551d37abf02de13eb14f2c1bb722dad | |
| parent | 7546934570f48283b7fe64a56d1c984fcb1e341e (diff) | |
| download | linux-c8ad6302c2b664e73f0abb3517c16531e294b9d7.tar.bz2 | |
mm/readahead.c, mm/vmscan.c: use lru_to_page instead of list_to_page
list_to_page() in readahead.c is the same as lru_to_page() in vmscan.c.
So I move lru_to_page to internal.h and drop list_to_page().
Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/internal.h | 2 | ||||
| -rw-r--r-- | mm/readahead.c | 8 | ||||
| -rw-r--r-- | mm/vmscan.c | 2 |
3 files changed, 5 insertions, 7 deletions
diff --git a/mm/internal.h b/mm/internal.h index 38e24b89e4c4..016452d2fede 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -119,6 +119,8 @@ extern int isolate_lru_page(struct page *page); extern void putback_lru_page(struct page *page); extern bool zone_reclaimable(struct zone *zone); +#define lru_to_page(_head) (list_entry((_head)->prev, struct page, lru)) + /* * in mm/rmap.c: */ diff --git a/mm/readahead.c b/mm/readahead.c index ba22d7fe0afb..0aff760b09d4 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -32,8 +32,6 @@ file_ra_state_init(struct file_ra_state *ra, struct address_space *mapping) } EXPORT_SYMBOL_GPL(file_ra_state_init); -#define list_to_page(head) (list_entry((head)->prev, struct page, lru)) - /* * see if a page needs releasing upon read_cache_pages() failure * - the caller of read_cache_pages() may have set PG_private or PG_fscache @@ -64,7 +62,7 @@ static void read_cache_pages_invalidate_pages(struct address_space *mapping, struct page *victim; while (!list_empty(pages)) { - victim = list_to_page(pages); + victim = lru_to_page(pages); list_del(&victim->lru); read_cache_pages_invalidate_page(mapping, victim); } @@ -87,7 +85,7 @@ int read_cache_pages(struct address_space *mapping, struct list_head *pages, int ret = 0; while (!list_empty(pages)) { - page = list_to_page(pages); + page = lru_to_page(pages); list_del(&page->lru); if (add_to_page_cache_lru(page, mapping, page->index, mapping_gfp_constraint(mapping, GFP_KERNEL))) { @@ -125,7 +123,7 @@ static int read_pages(struct address_space *mapping, struct file *filp, } for (page_idx = 0; page_idx < nr_pages; page_idx++) { - struct page *page = list_to_page(pages); + struct page *page = lru_to_page(pages); list_del(&page->lru); if (!add_to_page_cache_lru(page, mapping, page->index, mapping_gfp_constraint(mapping, GFP_KERNEL))) { diff --git a/mm/vmscan.c b/mm/vmscan.c index 1bbfd623630e..e36d766dade9 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -106,8 +106,6 @@ struct scan_control { unsigned long nr_reclaimed; }; -#define lru_to_page(_head) (list_entry((_head)->prev, struct page, lru)) - #ifdef ARCH_HAS_PREFETCH #define prefetch_prev_lru_page(_page, _base, _field) \ do { \ |