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__ceph_caps_mds_wanted() ignores caps from stale session. So the return value of __ceph_caps_mds_wanted() can keep the same across ceph_renew_caps(). This causes try_get_cap_refs() to keep calling ceph_renew_caps(). The fix is ignore the session valid check for the try_get_cap_refs() case. If session is stale, just let the caps requester sleep. Signed-off-by: Yan, Zheng <zyan@redhat.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.