/**
* find_journal_block - figure out where a journal starts, given the name
* Returns: journal block number, changes j_size to the journal size
*/
uint64_t find_journal_block(const char *journal, uint64_t *j_size)
{
int journal_num;
uint64_t jindex_block, jblock = 0;
int amtread;
struct gfs2_buffer_head *jindex_bh, *j_bh;
char jbuf[sbd.bsize];
journal_num = atoi(journal + 7);
if (journal_num < 0)
return 0;
/* Figure out the block of the jindex file */
if (sbd.gfs1)
jindex_block = sbd1->sb_jindex_di.no_addr;
else
jindex_block = masterblock("jindex");
/* read in the block */
jindex_bh = bread(&sbd, jindex_block);
/* get the dinode data from it. */
gfs2_dinode_in(&di, jindex_bh); /* parse disk inode to struct*/
if (!sbd.gfs1)
do_dinode_extended(&di, jindex_bh); /* parse dir. */
if (sbd.gfs1) {
struct gfs2_inode *jiinode;
struct gfs_jindex ji;
jiinode = lgfs2_inode_get(&sbd, jindex_bh);
if (jiinode == NULL)
return 0;
amtread = gfs2_readi(jiinode, (void *)&jbuf,
journal_num * sizeof(struct gfs_jindex),
sizeof(struct gfs_jindex));
if (amtread) {
gfs_jindex_in(&ji, jbuf);
jblock = ji.ji_addr;
*j_size = ji.ji_nsegment * 0x10;
}
inode_put(&jiinode);
} else {
struct gfs2_dinode jdi;
if (journal_num > indirect->ii[0].dirents - 2)
return 0;
jblock = indirect->ii[0].dirent[journal_num + 2].block;
j_bh = bread(&sbd, jblock);
gfs2_dinode_in(&jdi, j_bh);/* parse dinode to struct */
*j_size = jdi.di_size;
brelse(j_bh);
}
brelse(jindex_bh);
return jblock;
}
int gfs2_inode_refresh(struct gfs2_inode *ip)
{
struct buffer_head *dibh;
int error;
error = gfs2_meta_inode_buffer(ip, &dibh);
if (error)
return error;
error = gfs2_dinode_in(ip, dibh->b_data);
brelse(dibh);
clear_bit(GIF_INVALID, &ip->i_flags);
return error;
}
int gfs2_inode_refresh(struct gfs2_inode *ip)
{
struct buffer_head *dibh;
int error;
error = gfs2_meta_inode_buffer(ip, &dibh);
if (error)
return error;
if (gfs2_metatype_check(GFS2_SB(&ip->i_inode), dibh, GFS2_METATYPE_DI)) {
brelse(dibh);
return -EIO;
}
error = gfs2_dinode_in(ip, dibh->b_data);
brelse(dibh);
clear_bit(GIF_INVALID, &ip->i_flags);
return error;
}
