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-rw-r--r--fs/btrfs/extent_map.c2
-rw-r--r--fs/btrfs/extent_map.h1
2 files changed, 3 insertions, 0 deletions
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index 162766773a3..ab5bde31b68 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -1231,6 +1231,8 @@ static int end_bio_extent_writepage(struct bio *bio,
end_page_writeback(page);
else
check_page_writeback(tree, page);
+ if (tree->ops && tree->ops->writepage_end_io_hook)
+ tree->ops->writepage_end_io_hook(page, start, end);
} while (bvec >= bio->bi_io_vec);
bio_put(bio);
diff --git a/fs/btrfs/extent_map.h b/fs/btrfs/extent_map.h
index da41aca74e0..40b53ee274f 100644
--- a/fs/btrfs/extent_map.h
+++ b/fs/btrfs/extent_map.h
@@ -11,6 +11,7 @@ struct extent_map_ops {
int (*writepage_io_hook)(struct page *page, u64 start, u64 end);
int (*readpage_io_hook)(struct page *page, u64 start, u64 end);
int (*readpage_end_io_hook)(struct page *page, u64 start, u64 end);
+ void (*writepage_end_io_hook)(struct page *page, u64 start, u64 end);
};
struct extent_map_tree {