From: Samuel Kvasnica Date: Fri, 19 Nov 2010 13:38:49 +0000 (+0000) Subject: xfs: fix exporting with left over 64-bit inodes X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=576ecb8e2b725726471cc62b12c01e28d33127ba;p=karo-tx-linux.git xfs: fix exporting with left over 64-bit inodes We now support mounting and using filesystems with 64-bit inodes even when not mounted with the inode64 option (which now only controls if we allocate new inodes in that space or not). Make sure we always use large NFS file handles when exporting a filesystem that may contain 64-bit inodes. Note that this only affects newly generated file handles, any outstanding 32-bit file handle is still accepted. [hch: the comment and commit log are mine, the rest is from a patch snipplet from Samuel] Signed-off-by: Christoph Hellwig Signed-off-by: Alex Elder --- diff --git a/fs/xfs/linux-2.6/xfs_export.c b/fs/xfs/linux-2.6/xfs_export.c index 3764d74790ec..fc0114da7fdd 100644 --- a/fs/xfs/linux-2.6/xfs_export.c +++ b/fs/xfs/linux-2.6/xfs_export.c @@ -70,8 +70,16 @@ xfs_fs_encode_fh( else fileid_type = FILEID_INO32_GEN_PARENT; - /* filesystem may contain 64bit inode numbers */ - if (!(XFS_M(inode->i_sb)->m_flags & XFS_MOUNT_SMALL_INUMS)) + /* + * If the the filesystem may contain 64bit inode numbers, we need + * to use larger file handles that can represent them. + * + * While we only allocate inodes that do not fit into 32 bits any + * large enough filesystem may contain them, thus the slightly + * confusing looking conditional below. + */ + if (!(XFS_M(inode->i_sb)->m_flags & XFS_MOUNT_SMALL_INUMS) || + (XFS_M(inode->i_sb)->m_flags & XFS_MOUNT_32BITINODES)) fileid_type |= XFS_FILEID_TYPE_64FLAG; /*