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-rw-r--r--fs/f2fs/gc.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 809cfec6683..c386910dacc 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -424,7 +424,11 @@ next_step:
}
/*
- * Calculate start block index that this node page contains
+ * Calculate start block index indicating the given node offset.
+ * Be careful, caller should give this node offset only indicating direct node
+ * blocks. If any node offsets, which point the other types of node blocks such
+ * as indirect or double indirect node blocks, are given, it must be a caller's
+ * bug.
*/
block_t start_bidx_of_node(unsigned int node_ofs)
{