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-rw-r--r--fs/btrfs/file-item.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index e58fb5347e65..909438540119 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -450,6 +450,19 @@ blk_status_t btrfs_lookup_bio_sums(struct btrfs_bio *bbio)
return ret;
}
+/*
+ * Search for checksums for a given logical range.
+ *
+ * @root: The root where to look for checksums.
+ * @start: Logical address of target checksum range.
+ * @end: End offset (inclusive) of the target checksum range.
+ * @list: List for adding each checksum that was found.
+ * @search_commit: Indicate if the commit root of the @root should be used
+ * for the search.
+ * @nowait: Indicate if the search must be non-blocking or not.
+ *
+ * Return < 0 on error and 0 on success.
+ */
int btrfs_lookup_csums_list(struct btrfs_root *root, u64 start, u64 end,
struct list_head *list, int search_commit,
bool nowait)