Messages in this thread Patch in this message | | | Date | Sun, 20 May 2012 13:35:26 +0200 (CEST) | From | Joel Reardon <> | Subject | [patch] UBIFS: improved comment for data node's format history |
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A few more lines of comment on ksa_pos field in struct ubifs_data_node.
Signed-off-by: Joel Reardon <reardonj@inf.ethz.ch> --- fs/ubifs/ubifs-media.h | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/fs/ubifs/ubifs-media.h b/fs/ubifs/ubifs-media.h index 55f2ccd..90f348c 100644 --- a/fs/ubifs/ubifs-media.h +++ b/fs/ubifs/ubifs-media.h @@ -545,6 +545,11 @@ struct ubifs_dent_node { * @padding: reserved for future, zeroes * @data: data * + * The @ksa_pos value is used for secure deletion enhancement of UBIFS. + * In older versions of UBIFS, @ksa_pos did not exist but was instead an + * unused part of @key and was set to all zeros. UBIFS partitions with secure + * deletion disabled also store all zeros for ksa_pos. + * * Note, do not forget to amend 'zero_data_node_unused()' function when * changing the padding fields. */ -- 1.7.5.4
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