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[XFS] Hook up compat XFS_IOC_FSSETDM_BY_HANDLE ioctl handler
Add a compat handler for XFS_IOC_FSSETDM_BY_HANDLE. I haven't tested this, lacking dmapi tools to do so (unless xfsqa magically gets this somehow?) Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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parent
28750975ac
commit
710d62aaaf
2 changed files with 51 additions and 1 deletions
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@ -563,6 +563,46 @@ xfs_compat_attrmulti_by_handle(
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return -error;
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}
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STATIC int
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xfs_compat_fssetdm_by_handle(
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xfs_mount_t *mp,
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void __user *arg,
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struct inode *parinode)
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{
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int error;
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struct fsdmidata fsd;
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compat_xfs_fsop_setdm_handlereq_t dmhreq;
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struct inode *inode;
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if (!capable(CAP_MKNOD))
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return -XFS_ERROR(EPERM);
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if (copy_from_user(&dmhreq, arg,
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sizeof(compat_xfs_fsop_setdm_handlereq_t)))
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return -XFS_ERROR(EFAULT);
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error = xfs_vget_fsop_handlereq_compat(mp, parinode, &dmhreq.hreq,
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&inode);
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if (error)
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return -error;
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if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
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error = -XFS_ERROR(EPERM);
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goto out;
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}
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if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) {
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error = -XFS_ERROR(EFAULT);
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goto out;
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}
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error = -xfs_set_dmattrs(XFS_I(inode), fsd.fsd_dmevmask,
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fsd.fsd_dmstate);
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out:
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iput(inode);
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return error;
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}
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STATIC long
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xfs_compat_ioctl(
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xfs_inode_t *ip,
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@ -586,7 +626,6 @@ xfs_compat_ioctl(
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case XFS_IOC_GETBMAP:
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case XFS_IOC_GETBMAPA:
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case XFS_IOC_GETBMAPX:
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/* case XFS_IOC_FSSETDM_BY_HANDLE: not handled */
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case XFS_IOC_FSCOUNTS:
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case XFS_IOC_SET_RESBLKS:
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case XFS_IOC_GET_RESBLKS:
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@ -696,6 +735,8 @@ xfs_compat_ioctl(
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return xfs_compat_attrlist_by_handle(mp, arg, inode);
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case XFS_IOC_ATTRMULTI_BY_HANDLE_32:
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return xfs_compat_attrmulti_by_handle(mp, arg, inode);
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case XFS_IOC_FSSETDM_BY_HANDLE_32:
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return xfs_compat_fssetdm_by_handle(mp, arg, inode);
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default:
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return -XFS_ERROR(ENOIOCTLCMD);
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}
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@ -155,6 +155,15 @@ typedef struct compat_xfs_fsop_attrmulti_handlereq {
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#define XFS_IOC_ATTRMULTI_BY_HANDLE_32 \
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_IOW('X', 123, struct compat_xfs_fsop_attrmulti_handlereq)
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typedef struct compat_xfs_fsop_setdm_handlereq {
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struct compat_xfs_fsop_handlereq hreq; /* handle information */
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/* ptr to struct fsdmidata */
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compat_uptr_t data; /* DMAPI data */
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} compat_xfs_fsop_setdm_handlereq_t;
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#define XFS_IOC_FSSETDM_BY_HANDLE_32 \
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_IOW('X', 121, struct compat_xfs_fsop_setdm_handlereq)
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#ifdef BROKEN_X86_ALIGNMENT
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/* on ia32 l_start is on a 32-bit boundary */
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typedef struct compat_xfs_flock64 {
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