From 77d075221ae777296e2b18a0a4f5fea6f75daf2c Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Fri, 20 Dec 2024 08:47:43 -0700
Subject: mm/readahead: add readahead_control->dropbehind member

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@kernel.dk
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Brian Foster <bfoster@redhat.com>
Cc: Chris Mason <clm@meta.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 include/linux/pagemap.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include/linux')

diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index fc2e1319c7bb..d53c49abead6 100644
--- a/include/linux/pagemap.h
+++ b/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;
 };
-- 
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