readahead: move max_sane_readahead() calls into force_page_cache_readahead()
Impact: code simplification.
Cc: Nick Piggin <npiggin@suse.de>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Ying Han <yinghan@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/fadvise.c b/mm/fadvise.c
index 54a0f80..e433592 100644
--- a/mm/fadvise.c
+++ b/mm/fadvise.c
@@ -101,7 +101,7 @@
ret = force_page_cache_readahead(mapping, file,
start_index,
- max_sane_readahead(nrpages));
+ nrpages);
if (ret > 0)
ret = 0;
break;
diff --git a/mm/filemap.c b/mm/filemap.c
index 1b60f30..dcef9fd 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1390,8 +1390,7 @@
if (!mapping || !mapping->a_ops || !mapping->a_ops->readpage)
return -EINVAL;
- force_page_cache_readahead(mapping, filp, index,
- max_sane_readahead(nr));
+ force_page_cache_readahead(mapping, filp, index, nr);
return 0;
}
diff --git a/mm/madvise.c b/mm/madvise.c
index b9ce574..e994dcb 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -123,8 +123,7 @@
end = vma->vm_end;
end = ((end - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff;
- force_page_cache_readahead(file->f_mapping,
- file, start, max_sane_readahead(end - start));
+ force_page_cache_readahead(file->f_mapping, file, start, end - start);
return 0;
}
diff --git a/mm/readahead.c b/mm/readahead.c
index 133b6d5..a224182 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -210,6 +210,7 @@
if (unlikely(!mapping->a_ops->readpage && !mapping->a_ops->readpages))
return -EINVAL;
+ nr_to_read = max_sane_readahead(nr_to_read);
while (nr_to_read) {
int err;