/*
* Verify that a directory entry's inode number doesn't point at an internal
* inode, empty space, or static AG metadata.
*/
bool
xfs_verify_dir_ino(
struct xfs_mount *mp,
xfs_ino_t ino)
{
if (xfs_internal_inum(mp, ino))
return false;
return xfs_verify_ino(mp, ino);
}
/*
* Return stat information for one inode.
* Return 0 if ok, else errno.
*/
int
xfs_bulkstat_one_int(
struct xfs_mount *mp, /* mount point for filesystem */
xfs_ino_t ino, /* inode to get data for */
void __user *buffer, /* buffer to place output in */
int ubsize, /* size of buffer */
bulkstat_one_fmt_pf formatter, /* formatter, copy to user */
int *ubused, /* bytes used by me */
int *stat) /* BULKSTAT_RV_... */
{
struct xfs_icdinode *dic; /* dinode core info pointer */
struct xfs_inode *ip; /* incore inode pointer */
struct xfs_bstat *buf; /* return buffer */
int error = 0; /* error value */
*stat = BULKSTAT_RV_NOTHING;
if (!buffer || xfs_internal_inum(mp, ino))
return -EINVAL;
buf = kmem_alloc(sizeof(*buf), KM_SLEEP | KM_MAYFAIL);
if (!buf)
return -ENOMEM;
error = xfs_iget(mp, NULL, ino,
(XFS_IGET_DONTCACHE | XFS_IGET_UNTRUSTED),
XFS_ILOCK_SHARED, &ip);
if (error)
goto out_free;
ASSERT(ip != NULL);
ASSERT(ip->i_imap.im_blkno != 0);
dic = &ip->i_d;
/* xfs_iget returns the following without needing
* further change.
*/
buf->bs_nlink = dic->di_nlink;
buf->bs_projid_lo = dic->di_projid_lo;
buf->bs_projid_hi = dic->di_projid_hi;
buf->bs_ino = ino;
buf->bs_mode = dic->di_mode;
buf->bs_uid = dic->di_uid;
buf->bs_gid = dic->di_gid;
buf->bs_size = dic->di_size;
buf->bs_atime.tv_sec = dic->di_atime.t_sec;
buf->bs_atime.tv_nsec = dic->di_atime.t_nsec;
buf->bs_mtime.tv_sec = dic->di_mtime.t_sec;
buf->bs_mtime.tv_nsec = dic->di_mtime.t_nsec;
buf->bs_ctime.tv_sec = dic->di_ctime.t_sec;
buf->bs_ctime.tv_nsec = dic->di_ctime.t_nsec;
buf->bs_xflags = xfs_ip2xflags(ip);
buf->bs_extsize = dic->di_extsize << mp->m_sb.sb_blocklog;
buf->bs_extents = dic->di_nextents;
buf->bs_gen = dic->di_gen;
memset(buf->bs_pad, 0, sizeof(buf->bs_pad));
buf->bs_dmevmask = dic->di_dmevmask;
buf->bs_dmstate = dic->di_dmstate;
buf->bs_aextents = dic->di_anextents;
buf->bs_forkoff = XFS_IFORK_BOFF(ip);
switch (dic->di_format) {
case XFS_DINODE_FMT_DEV:
buf->bs_rdev = ip->i_df.if_u2.if_rdev;
buf->bs_blksize = BLKDEV_IOSIZE;
buf->bs_blocks = 0;
break;
case XFS_DINODE_FMT_LOCAL:
case XFS_DINODE_FMT_UUID:
buf->bs_rdev = 0;
buf->bs_blksize = mp->m_sb.sb_blocksize;
buf->bs_blocks = 0;
break;
case XFS_DINODE_FMT_EXTENTS:
case XFS_DINODE_FMT_BTREE:
buf->bs_rdev = 0;
buf->bs_blksize = mp->m_sb.sb_blocksize;
buf->bs_blocks = dic->di_nblocks + ip->i_delayed_blks;
break;
}
xfs_iunlock(ip, XFS_ILOCK_SHARED);
IRELE(ip);
error = formatter(buffer, ubsize, ubused, buf);
if (!error)
*stat = BULKSTAT_RV_DIDONE;
out_free:
kmem_free(buf);
return error;
}
