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f2fs crypto: add filename encryption for roll-forward recovery

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This patch adds a bit flag to indicate whether or not i_name in the inode
is encrypted.

If this name is encrypted, we can't do recover_dentry during roll-forward.
So, f2fs_sync_file() needs to do checkpoint, if this will be needed in future.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim
2015-04-29 17:02:18 -07:00
parent 6e22c691ba
commit e7d5545285
5 changed files with 41 additions and 9 deletions
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4
fs/f2fs/file.c
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@@ -106,7 +106,7 @@ static int get_parent_ino(struct inode *inode, nid_t *pino)
if (!dentry)
return 0;
if (update_dent_inode(inode, &dentry->d_name)) {
if (update_dent_inode(inode, inode, &dentry->d_name)) {
dput(dentry);
return 0;
}
@@ -123,6 +123,8 @@ static inline bool need_do_checkpoint(struct inode *inode)
if (!S_ISREG(inode->i_mode) || inode->i_nlink != 1)
need_cp = true;
else if (file_enc_name(inode) && need_dentry_mark(sbi, inode->i_ino))
need_cp = true;
else if (file_wrong_pino(inode))
need_cp = true;
else if (!space_for_roll_forward(sbi))