linux-ext4 - [PATCH v4 11/13] mm: Export buffer_migrate_folio

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Date:   Wed,  7 Dec 2022 12:27:14 +0100
From:   Jan Kara <jack@...e.cz>
To:     Ted Tso <tytso@....edu>
Cc:     <linux-ext4@...r.kernel.org>,
        Christoph Hellwig <hch@...radead.org>,
        "Ritesh Harjani (IBM)" <ritesh.list@...il.com>,
        Jan Kara <jack@...e.cz>
Subject: [PATCH v4 11/13] mm: Export buffer_migrate_folio_norefs()

Ext4 needs this function to allow safe migration for journalled data
pages.

Signed-off-by: Jan Kara <jack@...e.cz>
---
 mm/migrate.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/migrate.c b/mm/migrate.c
index dff333593a8a..5e4ca21da712 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -820,6 +820,7 @@ int buffer_migrate_folio_norefs(struct address_space *mapping,
 {
 	return __buffer_migrate_folio(mapping, dst, src, mode, true);
 }
+EXPORT_SYMBOL_GPL(buffer_migrate_folio_norefs);
 #endif
 
 int filemap_migrate_folio(struct address_space *mapping,
-- 
2.35.3