diff options
Diffstat (limited to 'include/linux/pagemap.h')
| -rw-r--r-- | include/linux/pagemap.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index d4409b13747e..8c081cda4b35 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -618,6 +618,14 @@ int replace_page_cache_page(struct page *old, struct page *new, gfp_t gfp_mask); void delete_from_page_cache_batch(struct address_space *mapping, struct pagevec *pvec); +#define VM_READAHEAD_PAGES (SZ_128K / PAGE_SIZE) + +void page_cache_sync_readahead(struct address_space *, struct file_ra_state *, + struct file *, pgoff_t index, unsigned long req_count); +void page_cache_async_readahead(struct address_space *, struct file_ra_state *, + struct file *, struct page *, pgoff_t index, + unsigned long req_count); + /* * Like add_to_page_cache_locked, but used to add newly allocated pages: * the page is new, so we can just run __SetPageLocked() against it. |