diff options
Diffstat (limited to 'mm/readahead.c')
| -rw-r--r-- | mm/readahead.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/mm/readahead.c b/mm/readahead.c index 0f142a40984..aa7ec424656 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -118,8 +118,7 @@ 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. @@ -182,14 +181,11 @@ 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; @@ -394,8 +390,8 @@ 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, |