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-rw-r--r--mm/readahead.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/mm/readahead.c b/mm/readahead.c
index e52b3a7b9da5..d01531ef9f3c 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -125,7 +125,14 @@ static void read_pages(struct readahead_control *rac, struct list_head *pages,
blk_start_plug(&plug);
- if (aops->readpages) {
+ if (aops->readahead) {
+ aops->readahead(rac);
+ /* Clean up the remaining pages */
+ while ((page = readahead_page(rac))) {
+ unlock_page(page);
+ put_page(page);
+ }
+ } else if (aops->readpages) {
aops->readpages(rac->file, rac->mapping, pages,
readahead_count(rac));
/* Clean up the remaining pages */
@@ -233,7 +240,8 @@ void force_page_cache_readahead(struct address_space *mapping,
struct file_ra_state *ra = &filp->f_ra;
unsigned long max_pages;
- if (unlikely(!mapping->a_ops->readpage && !mapping->a_ops->readpages))
+ if (unlikely(!mapping->a_ops->readpage && !mapping->a_ops->readpages &&
+ !mapping->a_ops->readahead))
return;
/*