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a74379543d
If the pagecaches writeback just finished and the i_wrbuffer_ref reaches zero it will try to trigger ceph_check_caps(). But if just before ceph_check_caps() the i_wrbuffer_ref could be increased again by mmap/cache write, then the Fwb revoke will fail. We need to try to queue a writeback in this case instead of triggering the writeback by BDI's delayed work per 5 seconds. URL: https://tracker.ceph.com/issues/46904 URL: https://tracker.ceph.com/issues/55377 Signed-off-by: Xiubo Li <xiubli@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
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.