summaryrefslogtreecommitdiffstats
path: root/mm/readahead.c
diff options
context:
space:
mode:
authorLin Feng <linf@wangsu.com>2021-11-05 21:43:47 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2021-11-06 21:30:41 +0100
commitfb25a77dde78dbcaa70c828ea8c2f7cf182510ae (patch)
treeaf36ec66828db8f2e61321e6674718eaba84a65d /mm/readahead.c
parentmm, thp: fix incorrect unmap behavior for private pages (diff)
downloadlinux-fb25a77dde78dbcaa70c828ea8c2f7cf182510ae.tar.xz
linux-fb25a77dde78dbcaa70c828ea8c2f7cf182510ae.zip
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> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/readahead.c')
-rw-r--r--mm/readahead.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/readahead.c b/mm/readahead.c
index 41b75d76d36e..88a84f254ed6 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -309,7 +309,7 @@ void force_page_cache_ra(struct readahead_control *ractl,
* 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)
{