STATIC int xfs_ioc_fsgetxattr( xfs_inode_t *ip, int attr, void __user *arg) { struct fsxattr fa; memset(&fa, 0, sizeof(struct fsxattr)); xfs_ilock(ip, XFS_ILOCK_SHARED); fa.fsx_xflags = xfs_ip2xflags(ip); fa.fsx_extsize = ip->i_d.di_extsize << ip->i_mount->m_sb.sb_blocklog; fa.fsx_cowextsize = ip->i_d.di_cowextsize << ip->i_mount->m_sb.sb_blocklog; fa.fsx_projid = xfs_get_projid(ip); if (attr) { if (ip->i_afp) { if (ip->i_afp->if_flags & XFS_IFEXTENTS) fa.fsx_nextents = xfs_iext_count(ip->i_afp); else fa.fsx_nextents = ip->i_d.di_anextents; } else fa.fsx_nextents = 0; } else { if (ip->i_df.if_flags & XFS_IFEXTENTS) fa.fsx_nextents = xfs_iext_count(&ip->i_df); else fa.fsx_nextents = ip->i_d.di_nextents; } xfs_iunlock(ip, XFS_ILOCK_SHARED); if (copy_to_user(arg, &fa, sizeof(fa))) return -EFAULT; return 0; }
static inline int xfs_iext_max_recs(struct xfs_ifork *ifp) { if (ifp->if_height == 1) return xfs_iext_count(ifp); return RECS_PER_LEAF; }