xfs: remove if_rdev
We can simply use the i_rdev field in the Linux inode and just convert to and from the XFS dev_t when reading or logging/writing the inode. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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@ -42,21 +42,27 @@ STATIC int xfs_iformat_local(xfs_inode_t *, xfs_dinode_t *, int, int);
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STATIC int xfs_iformat_extents(xfs_inode_t *, xfs_dinode_t *, int);
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STATIC int xfs_iformat_btree(xfs_inode_t *, xfs_dinode_t *, int);
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static inline dev_t xfs_to_linux_dev_t(xfs_dev_t dev)
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{
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return MKDEV(sysv_major(dev) & 0x1ff, sysv_minor(dev));
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}
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/*
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* Move inode type and inode format specific information from the
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* on-disk inode to the in-core inode. For fifos, devs, and sockets
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* this means set if_rdev to the proper value. For files, directories,
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* and symlinks this means to bring in the in-line data or extent
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* pointers. For a file in B-tree format, only the root is immediately
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* brought in-core. The rest will be in-lined in if_extents when it
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* is first referenced (see xfs_iread_extents()).
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* Copy inode type and data and attr format specific information from the
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* on-disk inode to the in-core inode and fork structures. For fifos, devices,
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* and sockets this means set i_rdev to the proper value. For files,
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* directories, and symlinks this means to bring in the in-line data or extent
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* pointers as well as the attribute fork. For a fork in B-tree format, only
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* the root is immediately brought in-core. The rest will be read in later when
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* first referenced (see xfs_iread_extents()).
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*/
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int
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xfs_iformat_fork(
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xfs_inode_t *ip,
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xfs_dinode_t *dip)
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struct xfs_inode *ip,
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struct xfs_dinode *dip)
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{
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xfs_attr_shortform_t *atp;
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struct inode *inode = VFS_I(ip);
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struct xfs_attr_shortform *atp;
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int size;
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int error = 0;
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xfs_fsize_t di_size;
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@ -95,8 +101,7 @@ xfs_iformat_fork(
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return -EFSCORRUPTED;
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}
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if (unlikely(xfs_is_reflink_inode(ip) &&
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(VFS_I(ip)->i_mode & S_IFMT) != S_IFREG)) {
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if (unlikely(xfs_is_reflink_inode(ip) && !S_ISREG(inode->i_mode))) {
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xfs_warn(ip->i_mount,
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"corrupt dinode %llu, wrong file type for reflink.",
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ip->i_ino);
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@ -115,7 +120,7 @@ xfs_iformat_fork(
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return -EFSCORRUPTED;
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}
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switch (VFS_I(ip)->i_mode & S_IFMT) {
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switch (inode->i_mode & S_IFMT) {
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case S_IFIFO:
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case S_IFCHR:
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case S_IFBLK:
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@ -126,7 +131,7 @@ xfs_iformat_fork(
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return -EFSCORRUPTED;
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}
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ip->i_d.di_size = 0;
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ip->i_df.if_u2.if_rdev = xfs_dinode_get_rdev(dip);
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inode->i_rdev = xfs_to_linux_dev_t(xfs_dinode_get_rdev(dip));
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break;
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case S_IFREG:
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@ -184,8 +189,7 @@ xfs_iformat_fork(
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return error;
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/* Check inline dir contents. */
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if (S_ISDIR(VFS_I(ip)->i_mode) &&
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dip->di_format == XFS_DINODE_FMT_LOCAL) {
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if (S_ISDIR(inode->i_mode) && dip->di_format == XFS_DINODE_FMT_LOCAL) {
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error = xfs_dir2_sf_verify(ip);
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if (error) {
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xfs_idestroy_fork(ip, XFS_DATA_FORK);
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@ -898,7 +902,7 @@ xfs_iflush_fork(
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case XFS_DINODE_FMT_DEV:
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if (iip->ili_fields & XFS_ILOG_DEV) {
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ASSERT(whichfork == XFS_DATA_FORK);
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xfs_dinode_put_rdev(dip, ip->i_df.if_u2.if_rdev);
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xfs_dinode_put_rdev(dip, sysv_encode_dev(VFS_I(ip)->i_rdev));
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}
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break;
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@ -69,7 +69,6 @@ typedef struct xfs_ifork {
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/* very small file extents */
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char if_inline_data[XFS_INLINE_DATA];
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/* very small file data */
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xfs_dev_t if_rdev; /* dev number if special */
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} if_u2;
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} xfs_ifork_t;
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@ -767,7 +767,7 @@ xfs_ialloc(
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xfs_inode_t *pip,
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umode_t mode,
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xfs_nlink_t nlink,
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xfs_dev_t rdev,
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dev_t rdev,
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prid_t prid,
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int okalloc,
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xfs_buf_t **ialloc_context,
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@ -819,6 +819,7 @@ xfs_ialloc(
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set_nlink(inode, nlink);
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ip->i_d.di_uid = xfs_kuid_to_uid(current_fsuid());
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ip->i_d.di_gid = xfs_kgid_to_gid(current_fsgid());
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inode->i_rdev = rdev;
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xfs_set_projid(ip, prid);
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if (pip && XFS_INHERIT_GID(pip)) {
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@ -867,7 +868,6 @@ xfs_ialloc(
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case S_IFBLK:
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case S_IFSOCK:
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ip->i_d.di_format = XFS_DINODE_FMT_DEV;
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ip->i_df.if_u2.if_rdev = rdev;
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ip->i_df.if_flags = 0;
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flags |= XFS_ILOG_DEV;
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break;
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@ -975,7 +975,7 @@ xfs_dir_ialloc(
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the inode. */
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umode_t mode,
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xfs_nlink_t nlink,
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xfs_dev_t rdev,
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dev_t rdev,
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prid_t prid, /* project id */
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int okalloc, /* ok to allocate new space */
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xfs_inode_t **ipp, /* pointer to inode; it will be
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@ -1147,7 +1147,7 @@ xfs_create(
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xfs_inode_t *dp,
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struct xfs_name *name,
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umode_t mode,
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xfs_dev_t rdev,
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dev_t rdev,
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xfs_inode_t **ipp)
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{
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int is_dir = S_ISDIR(mode);
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@ -1183,7 +1183,6 @@ xfs_create(
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return error;
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if (is_dir) {
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rdev = 0;
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resblks = XFS_MKDIR_SPACE_RES(mp, name->len);
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tres = &M_RES(mp)->tr_mkdir;
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} else {
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@ -391,7 +391,7 @@ void xfs_inactive(struct xfs_inode *ip);
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int xfs_lookup(struct xfs_inode *dp, struct xfs_name *name,
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struct xfs_inode **ipp, struct xfs_name *ci_name);
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int xfs_create(struct xfs_inode *dp, struct xfs_name *name,
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umode_t mode, xfs_dev_t rdev, struct xfs_inode **ipp);
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umode_t mode, dev_t rdev, struct xfs_inode **ipp);
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int xfs_create_tmpfile(struct xfs_inode *dp, struct dentry *dentry,
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umode_t mode, struct xfs_inode **ipp);
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int xfs_remove(struct xfs_inode *dp, struct xfs_name *name,
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@ -428,7 +428,7 @@ xfs_extlen_t xfs_get_extsz_hint(struct xfs_inode *ip);
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xfs_extlen_t xfs_get_cowextsz_hint(struct xfs_inode *ip);
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int xfs_dir_ialloc(struct xfs_trans **, struct xfs_inode *, umode_t,
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xfs_nlink_t, xfs_dev_t, prid_t, int,
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xfs_nlink_t, dev_t, prid_t, int,
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struct xfs_inode **, int *);
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/* from xfs_file.c */
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@ -222,7 +222,7 @@ xfs_inode_item_format_data_fork(
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iip->ili_fields &=
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~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT | XFS_ILOG_DEXT);
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if (iip->ili_fields & XFS_ILOG_DEV)
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ilf->ilf_u.ilfu_rdev = ip->i_df.if_u2.if_rdev;
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ilf->ilf_u.ilfu_rdev = sysv_encode_dev(VFS_I(ip)->i_rdev);
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break;
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default:
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ASSERT(0);
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@ -160,7 +160,6 @@ xfs_generic_create(
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if (S_ISCHR(mode) || S_ISBLK(mode)) {
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if (unlikely(!sysv_valid_dev(rdev) || MAJOR(rdev) & ~0x1ff))
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return -EINVAL;
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rdev = sysv_encode_dev(rdev);
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} else {
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rdev = 0;
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}
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@ -535,8 +534,7 @@ xfs_vn_getattr(
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case S_IFBLK:
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case S_IFCHR:
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stat->blksize = BLKDEV_IOSIZE;
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stat->rdev = MKDEV(sysv_major(ip->i_df.if_u2.if_rdev) & 0x1ff,
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sysv_minor(ip->i_df.if_u2.if_rdev));
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stat->rdev = inode->i_rdev;
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break;
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default:
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if (XFS_IS_REALTIME_INODE(ip)) {
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@ -1231,18 +1229,6 @@ xfs_setup_inode(
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inode->i_uid = xfs_uid_to_kuid(ip->i_d.di_uid);
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inode->i_gid = xfs_gid_to_kgid(ip->i_d.di_gid);
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switch (inode->i_mode & S_IFMT) {
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case S_IFBLK:
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case S_IFCHR:
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inode->i_rdev =
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MKDEV(sysv_major(ip->i_df.if_u2.if_rdev) & 0x1ff,
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sysv_minor(ip->i_df.if_u2.if_rdev));
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break;
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default:
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inode->i_rdev = 0;
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break;
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}
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i_size_write(inode, ip->i_d.di_size);
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xfs_diflags_to_iflags(inode, ip);
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@ -109,7 +109,7 @@ xfs_bulkstat_one_int(
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switch (dic->di_format) {
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case XFS_DINODE_FMT_DEV:
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buf->bs_rdev = ip->i_df.if_u2.if_rdev;
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buf->bs_rdev = sysv_encode_dev(inode->i_rdev);
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buf->bs_blksize = BLKDEV_IOSIZE;
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buf->bs_blocks = 0;
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break;
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