[patch 175/262] mm/readahead.c: fix incorrect comments for get_init_ra_size

Andrew Morton
2021-11-05T20:43:59Z

From: Lin Feng <linf@wangsu.com>
Subject: mm/readahead.c: fix incorrect comments for get_init_ra_size

In fact, formated values returned by get_init_ra_size are not that
intuitive. This patch make the comments reflect its truth.

Link: https://lkml.kernel.org/r/20211019104812.135602-1-linf@wangsu.com
Signed-off-by: Lin Feng <linf@wangsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

mm/readahead.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/readahead.c~mm-readaheadc-fix-incorrect-comments-for-get_init_ra_size
+++ a/mm/readahead.c
@@ -309,7 +309,7 @@ void force_page_cache_ra(struct readahea
* Set the initial window size, round to next power of 2 and square
* for small size, x 4 for medium, and x 2 for large
* for 128k (32 page) max ra
- * 1-8 page = 32k initial, > 8 page = 128k initial
+ * 1-2 page = 16k, 3-4 page 32k, 5-8 page = 64k, > 8 page = 128k initial
*/
static unsigned long get_init_ra_size(unsigned long size, unsigned long max)
{
_