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The dirfragtree is lazily updated, it's not always accurate. Infinite loops happens in following circumstance. - client send request to read frag A - frag A has been fragmented into frag B and C. So mds fills the reply with contents of frag B - client wants to read next frag C. ceph_choose_frag(frag value of C) return frag A. The fix is using previous readdir reply to calculate next readdir frag when possible. Signed-off-by: "Yan, Zheng" <zyan@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.