nilfs2: allow nilfs_clear_inode to clear metadata file inodes

Allows clear inode function (nilfs_clear_inode) to handle metadata
files that uses bitmap-based object alloctor.  DAT and ifile
correspond to this.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>

diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 3efef0e..5485dd1 100644 (file)
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -674,6 +674,7 @@ void nilfs_truncate(struct inode *inode)
 static void nilfs_clear_inode(struct inode *inode)
 {
        struct nilfs_inode_info *ii = NILFS_I(inode);
+       struct nilfs_mdt_info *mdi = NILFS_MDT(inode);
 
        /*
         * Free resources allocated in nilfs_read_inode(), here.
@@ -682,6 +683,9 @@ static void nilfs_clear_inode(struct inode *inode)
        brelse(ii->i_bh);
        ii->i_bh = NULL;
 
+       if (mdi && mdi->mi_palloc_cache)
+               nilfs_palloc_destroy_cache(inode);
+
        if (test_bit(NILFS_I_BMAP, &ii->i_state))
                nilfs_bmap_clear(ii->i_bmap);