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mm: export buffer_migrate_folio_norefs()

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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>
This commit is contained in:
Jan Kara 2022-12-07 12:27:14 +01:00 committed by Theodore Ts'o
parent 49977f9762
commit e26355e215
1 changed files with 1 additions and 0 deletions
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mm/migrate.c
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@ -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,