diff options
Diffstat (limited to 'fs/xfs/xfs_ioctl.c')
| -rw-r--r-- | fs/xfs/xfs_ioctl.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index 55ec4d44d4ba..388b5b5b67c9 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -1080,11 +1080,15 @@ xfs_ioctl_setattr_dax_invalidate( /* * It is only valid to set the DAX flag on regular files and - * directories. On directories it serves as an inherit hint. + * directories on filesystems where the block size is equal to the page + * size. On directories it serves as an inherit hint. */ - if ((fa->fsx_xflags & FS_XFLAG_DAX) && - !(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode))) - return -EINVAL; + if (fa->fsx_xflags & FS_XFLAG_DAX) { + if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode))) + return -EINVAL; + if (ip->i_mount->m_sb.sb_blocksize != PAGE_SIZE) + return -EINVAL; + } /* If the DAX state is not changing, we have nothing to do here. */ if ((fa->fsx_xflags & FS_XFLAG_DAX) && IS_DAX(inode)) |