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mm: export buffer_migrate_folio_norefs()
author
Jan Kara
<jack@suse.cz>
Wed, 7 Dec 2022 11:27:14 +0000
(12:27 +0100)
committer
Theodore Ts'o
<tytso@mit.edu>
Fri, 9 Dec 2022 02:49:25 +0000
(21:49 -0500)
Ext4 needs this function to allow safe migration for journalled data
pages.
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link:
https://lore.kernel.org/r/20221207112722.22220-11-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
mm/migrate.c
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diff --git
a/mm/migrate.c
b/mm/migrate.c
index
dff3335
..
5e4ca21
100644
(file)
--- 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,