/*
* Writes a modified inode's changes out to the inode's on disk home.
* Originally based on xfs_iflush_int() from xfs_inode.c in the kernel.
*/
int
libxfs_iflush_int(xfs_inode_t *ip, xfs_buf_t *bp)
{
xfs_inode_log_item_t *iip;
xfs_dinode_t *dip;
xfs_mount_t *mp;
ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
ip->i_d.di_nextents > ip->i_df.if_ext_max);
ASSERT(ip->i_d.di_version > 1);
iip = ip->i_itemp;
mp = ip->i_mount;
/* set *dip = inode's place in the buffer */
dip = xfs_buf_offset(bp, ip->i_imap.im_boffset);
ASSERT(ip->i_d.di_magic == XFS_DINODE_MAGIC);
if ((ip->i_d.di_mode & S_IFMT) == S_IFREG) {
ASSERT( (ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS) ||
(ip->i_d.di_format == XFS_DINODE_FMT_BTREE) );
}
else if ((ip->i_d.di_mode & S_IFMT) == S_IFDIR) {
ASSERT( (ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS) ||
(ip->i_d.di_format == XFS_DINODE_FMT_BTREE) ||
(ip->i_d.di_format == XFS_DINODE_FMT_LOCAL) );
}
ASSERT(ip->i_d.di_nextents+ip->i_d.di_anextents <= ip->i_d.di_nblocks);
ASSERT(ip->i_d.di_forkoff <= mp->m_sb.sb_inodesize);
/* bump the change count on v3 inodes */
if (ip->i_d.di_version == 3)
ip->i_d.di_changecount++;
/*
* Copy the dirty parts of the inode into the on-disk
* inode. We always copy out the core of the inode,
* because if the inode is dirty at all the core must
* be.
*/
xfs_dinode_to_disk(dip, &ip->i_d);
xfs_iflush_fork(ip, dip, iip, XFS_DATA_FORK);
if (XFS_IFORK_Q(ip))
xfs_iflush_fork(ip, dip, iip, XFS_ATTR_FORK);
/* update the lsn in the on disk inode if required */
if (ip->i_d.di_version == 3)
dip->di_lsn = cpu_to_be64(iip->ili_item.li_lsn);
/* generate the checksum. */
xfs_dinode_calc_crc(mp, dip);
return 0;
}
/*
* Writes a modified inode's changes out to the inode's on disk home.
* Originally based on xfs_iflush_int() from xfs_inode.c in the kernel.
*/
int
libxfs_iflush_int(xfs_inode_t *ip, xfs_buf_t *bp)
{
xfs_inode_log_item_t *iip;
xfs_dinode_t *dip;
xfs_mount_t *mp;
ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
ip->i_d.di_nextents > ip->i_df.if_ext_max);
iip = ip->i_itemp;
mp = ip->i_mount;
/* set *dip = inode's place in the buffer */
dip = (xfs_dinode_t *)xfs_buf_offset(bp, ip->i_boffset);
#ifdef DEBUG
ASSERT(ip->i_d.di_magic == XFS_DINODE_MAGIC);
if ((ip->i_d.di_mode & IFMT) == IFREG) {
ASSERT( (ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS) ||
(ip->i_d.di_format == XFS_DINODE_FMT_BTREE) );
}
else if ((ip->i_d.di_mode & IFMT) == IFDIR) {
ASSERT( (ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS) ||
(ip->i_d.di_format == XFS_DINODE_FMT_BTREE) ||
(ip->i_d.di_format == XFS_DINODE_FMT_LOCAL) );
}
ASSERT(ip->i_d.di_nextents+ip->i_d.di_anextents <= ip->i_d.di_nblocks);
ASSERT(ip->i_d.di_forkoff <= mp->m_sb.sb_inodesize);
#endif
/*
* Copy the dirty parts of the inode into the on-disk
* inode. We always copy out the core of the inode,
* because if the inode is dirty at all the core must
* be.
*/
xfs_xlate_dinode_core((xfs_caddr_t)&(dip->di_core), &(ip->i_d), -1,
ARCH_CONVERT);
/*
* If this is really an old format inode and the superblock version
* has not been updated to support only new format inodes, then
* convert back to the old inode format. If the superblock version
* has been updated, then make the conversion permanent.
*/
ASSERT(ip->i_d.di_version == XFS_DINODE_VERSION_1 ||
XFS_SB_VERSION_HASNLINK(&mp->m_sb));
if (ip->i_d.di_version == XFS_DINODE_VERSION_1) {
if (!XFS_SB_VERSION_HASNLINK(&mp->m_sb)) {
/*
* Convert it back.
*/
ASSERT(ip->i_d.di_nlink <= XFS_MAXLINK_1);
INT_SET(dip->di_core.di_onlink, ARCH_CONVERT,
ip->i_d.di_nlink);
} else {
/*
* The superblock version has already been bumped,
* so just make the conversion to the new inode
* format permanent.
*/
ip->i_d.di_version = XFS_DINODE_VERSION_2;
INT_SET(dip->di_core.di_version, ARCH_CONVERT,
XFS_DINODE_VERSION_2);
ip->i_d.di_onlink = 0;
INT_ZERO(dip->di_core.di_onlink, ARCH_CONVERT);
bzero(&(ip->i_d.di_pad[0]), sizeof(ip->i_d.di_pad));
bzero(&(dip->di_core.di_pad[0]),
sizeof(dip->di_core.di_pad));
ASSERT(ip->i_d.di_projid == 0);
}
}
if (xfs_iflush_fork(ip, dip, iip, XFS_DATA_FORK, bp) == EFSCORRUPTED)
return EFSCORRUPTED;
if (XFS_IFORK_Q(ip)) {
/* The only error from xfs_iflush_fork is on the data fork. */
xfs_iflush_fork(ip, dip, iip, XFS_ATTR_FORK, bp);
}
return 0;
}
