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e1c420ac99
The writepage operation is deprecated as it leads to worse performance under high memory pressure due to folios being written out in LRU order rather than sequentially within a file. Use filemap_migrate_folio() to support dirty folio migration instead of writepage. Signed-off-by: "Matthew Wilcox (Oracle)" <willy@infradead.org> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>