aboutsummaryrefslogtreecommitdiff
path: root/mm/readahead.c
diff options
context:
space:
mode:
Diffstat (limited to 'mm/readahead.c')
-rw-r--r--mm/readahead.c20
1 files changed, 8 insertions, 12 deletions
diff --git a/mm/readahead.c b/mm/readahead.c
index ba7db816f4c..1ba736ac036 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -119,8 +119,7 @@ static inline unsigned long get_next_ra_size(struct file_ra_state *ra)
#define list_to_page(head) (list_entry((head)->prev, struct page, lru))
/**
- * read_cache_pages - populate an address space with some pages, and
- * start reads against them.
+ * read_cache_pages - populate an address space with some pages & start reads against them
* @mapping: the address_space
* @pages: The address of a list_head which contains the target pages. These
* pages have their ->index populated and are otherwise uninitialised.
@@ -183,14 +182,11 @@ static int read_pages(struct address_space *mapping, struct file *filp,
list_del(&page->lru);
if (!add_to_page_cache(page, mapping,
page->index, GFP_KERNEL)) {
- ret = mapping->a_ops->readpage(filp, page);
- if (ret != AOP_TRUNCATED_PAGE) {
- if (!pagevec_add(&lru_pvec, page))
- __pagevec_lru_add(&lru_pvec);
- continue;
- } /* else fall through to release */
- }
- page_cache_release(page);
+ mapping->a_ops->readpage(filp, page);
+ if (!pagevec_add(&lru_pvec, page))
+ __pagevec_lru_add(&lru_pvec);
+ } else
+ page_cache_release(page);
}
pagevec_lru_add(&lru_pvec);
ret = 0;
@@ -395,8 +391,8 @@ int do_page_cache_readahead(struct address_space *mapping, struct file *filp,
* Read 'nr_to_read' pages starting at page 'offset'. If the flag 'block'
* is set wait till the read completes. Otherwise attempt to read without
* blocking.
- * Returns 1 meaning 'success' if read is succesfull without switching off
- * readhaead mode. Otherwise return failure.
+ * Returns 1 meaning 'success' if read is successful without switching off
+ * readahead mode. Otherwise return failure.
*/
static int
blockable_page_cache_readahead(struct address_space *mapping, struct file *filp,