f2fs: add comments of start_bidx_of_node

The caller of start_bidx_of_node() should give proper node offsets which
point only direct node blocks. Otherwise, it is a caller's bug.
This patch adds comments to make it clear.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This commit is contained in:
Jaegeuk Kim 2013-01-21 17:34:21 +09:00
parent a7fdffbd3e
commit 9af45ef5ab
1 changed files with 5 additions and 1 deletions

View File

@ -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)
{