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commit3a15b38fd2upstream. rsize/wsize cap should be applied before ceph_osdc_new_request() is called. Otherwise, if the size is limited by the cap instead of the stripe unit, ceph_osdc_new_request() would setup an extent op that is bigger than what dio_get_pages_alloc() would pin and add to the page vector, triggering asserts in the messenger. Cc: stable@vger.kernel.org Fixes:95cca2b44e("ceph: limit osd write size") Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.