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authorGeliang Tang <geliangtang@163.com>2016-01-14 15:20:51 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-01-14 16:00:49 -0800
commitc8ad6302c2b664e73f0abb3517c16531e294b9d7 (patch)
tree9d77e818a551d37abf02de13eb14f2c1bb722dad /mm/readahead.c
parent7546934570f48283b7fe64a56d1c984fcb1e341e (diff)
downloadop-kernel-dev-c8ad6302c2b664e73f0abb3517c16531e294b9d7.zip
op-kernel-dev-c8ad6302c2b664e73f0abb3517c16531e294b9d7.tar.gz
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>
Diffstat (limited to 'mm/readahead.c')
-rw-r--r--mm/readahead.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/mm/readahead.c b/mm/readahead.c
index ba22d7f..0aff760 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))) {
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