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Since its inception, ceph has presented the fsid as an opaque value without any sort of endianness conversion. This means that the value presented is different on architectures of different endianness. While the value that should be stuffed into f_fsid is poorly-defined, I think it would be best to strive for consistency here between architectures, and clients (we need to present this properly to the userland client as well). Change ceph_statfs to convert the opaque words to host-endian before doing the xor. On an upgrade, a big-endian box may see a different fsid than it did before, but little-endian arches should see no change with this patch. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Sage Weil <sage@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.