2 files changed, 6 insertions, 11 deletions

diff --git a/mm/internal.h b/mm/internal.h
index 62d8c34e63d5..954003ac766a 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -53,7 +53,7 @@ void unmap_page_range(struct mmu_gather *tlb,
                              unsigned long addr, unsigned long end,
                              struct zap_details *details);
 
-extern int __do_page_cache_readahead(struct address_space *mapping,
+extern unsigned int __do_page_cache_readahead(struct address_space *mapping,
                 struct file *filp, pgoff_t offset, unsigned long nr_to_read,
                 unsigned long lookahead_size);
 
diff --git a/mm/readahead.c b/mm/readahead.c
index 16d0cb1e2616..fa4d4b767130 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -147,16 +147,16 @@ out:
  *
  * Returns the number of pages requested, or the maximum amount of I/O allowed.
  */
-int __do_page_cache_readahead(struct address_space *mapping, struct file *filp,
-                        pgoff_t offset, unsigned long nr_to_read,
-                        unsigned long lookahead_size)
+unsigned int __do_page_cache_readahead(struct address_space *mapping,
+                struct file *filp, pgoff_t offset, unsigned long nr_to_read,
+                unsigned long lookahead_size)
 {
         struct inode *inode = mapping->host;
         struct page *page;
         unsigned long end_index;        /* The last page we want to read */
         LIST_HEAD(page_pool);
         int page_idx;
-        int nr_pages = 0;
+        unsigned int nr_pages = 0;
         loff_t isize = i_size_read(inode);
         gfp_t gfp_mask = readahead_gfp_mask(mapping);
 
@@ -223,16 +223,11 @@ int force_page_cache_readahead(struct address_space *mapping, struct file *filp,
         max_pages = max_t(unsigned long, bdi->io_pages, ra->ra_pages);
         nr_to_read = min(nr_to_read, max_pages);
         while (nr_to_read) {
-                int err;
-
                 unsigned long this_chunk = (2 * 1024 * 1024) / PAGE_SIZE;
 
                 if (this_chunk > nr_to_read)
                         this_chunk = nr_to_read;
-                err = __do_page_cache_readahead(mapping, filp,
-                                                offset, this_chunk, 0);
-                if (err < 0)
-                        return err;
+                __do_page_cache_readahead(mapping, filp, offset, this_chunk, 0);
 
                 offset += this_chunk;
                 nr_to_read -= this_chunk;