The quilt patch titled
Subject: mm/readahead: add readahead_control->dropbehind member
has been removed from the -mm tree. Its filename was
mm-readahead-add-readahead_control-dropbehind-member.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: Jens Axboe <axboe@xxxxxxxxx>
Subject: mm/readahead: add readahead_control->dropbehind member
Date: Fri, 20 Dec 2024 08:47:43 -0700
If ractl->dropbehind is set to true, then folios created are marked as
dropbehind as well.
Link: https://lkml.kernel.org/r/20241220154831.1086649-6-axboe@xxxxxxxxx
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Reviewed-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Brian Foster <bfoster@xxxxxxxxxx>
Cc: Chris Mason <clm@xxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/pagemap.h | 1 +
mm/readahead.c | 8 +++++++-
2 files changed, 8 insertions(+), 1 deletion(-)
--- a/include/linux/pagemap.h~mm-readahead-add-readahead_control-dropbehind-member
+++ a/include/linux/pagemap.h
@@ -1358,6 +1358,7 @@ struct readahead_control {
pgoff_t _index;
unsigned int _nr_pages;
unsigned int _batch_count;
+ bool dropbehind;
bool _workingset;
unsigned long _pflags;
};
--- a/mm/readahead.c~mm-readahead-add-readahead_control-dropbehind-member
+++ a/mm/readahead.c
@@ -181,7 +181,13 @@ static void read_pages(struct readahead_
static struct folio *ractl_alloc_folio(struct readahead_control *ractl,
gfp_t gfp_mask, unsigned int order)
{
- return filemap_alloc_folio(gfp_mask, order);
+ struct folio *folio;
+
+ folio = filemap_alloc_folio(gfp_mask, order);
+ if (folio && ractl->dropbehind)
+ __folio_set_dropbehind(folio);
+
+ return folio;
}
/**
_
Patches currently in -mm which might be from axboe@xxxxxxxxx are
