The quilt patch titled
Subject: readahead: drop dead code in page_cache_ra_order()
has been removed from the -mm tree. Its filename was
readahead-drop-dead-code-in-page_cache_ra_order.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Jan Kara <jack@xxxxxxx>
Subject: readahead: drop dead code in page_cache_ra_order()
Date: Tue, 25 Jun 2024 12:18:56 +0200
page_cache_ra_order() scales folio order down so that is fully fits within
readahead window. Thus the code handling the case where we walked past
the readahead window is a dead code. Remove it.
Link: https://lkml.kernel.org/r/20240625101909.12234-6-jack@xxxxxxx
Signed-off-by: Jan Kara <jack@xxxxxxx>
Reviewed-by: Josef Bacik <josef@xxxxxxxxxxxxxx>
Tested-by: Zhang Peng <zhangpengpeng0808@xxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/readahead.c | 5 -----
1 file changed, 5 deletions(-)
--- a/mm/readahead.c~readahead-drop-dead-code-in-page_cache_ra_order
+++ a/mm/readahead.c
@@ -525,11 +525,6 @@ void page_cache_ra_order(struct readahea
index += 1UL << order;
}
- if (index > limit) {
- ra->size += index - limit - 1;
- ra->async_size += index - limit - 1;
- }
-
read_pages(ractl);
filemap_invalidate_unlock_shared(mapping);
memalloc_nofs_restore(nofs);
_
Patches currently in -mm which might be from jack@xxxxxxx are
