INT32 FsMapCluster(struct inode *inode, INT32 clu_offset, UINT32 *clu)
{
INT32 err;
struct super_block *sb = inode->i_sb;
FS_INFO_T *p_fs = &(EXFAT_SB(sb)->fs_info);
if (clu == NULL) return(FFS_ERROR);
sm_P(&(fs_struct[p_fs->drv].v_sem));
err = ffsMapCluster(inode, clu_offset, clu);
sm_V(&(fs_struct[p_fs->drv].v_sem));
return(err);
}
/* FsMapCluster : return the cluster number in the given cluster offset */
INT32 FsMapCluster(struct inode *inode, INT32 clu_offset, UINT32 *clu)
{
INT32 err;
struct super_block *sb = inode->i_sb;
FS_INFO_T *p_fs = &(EXFAT_SB(sb)->fs_info);
/* check the validity of pointer parameters */
if (clu == NULL) return(FFS_ERROR);
/* acquire the lock for file system critical section */
sm_P(&(fs_struct[p_fs->drv].v_sem));
err = ffsMapCluster(inode, clu_offset, clu);
/* release the lock for file system critical section */
sm_V(&(fs_struct[p_fs->drv].v_sem));
return(err);
} /* end of FsMapCluster */
