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commitf1ebdeffc6upstream. exit_aio() is sometimes stuck in wait_for_completion() after aio is issued with direct IO and the task receives a signal. The reason is failure to call ->ki_complete() due to a leaked reference to fuse_io_priv. This happens in fuse_async_req_send() if fuse_simple_background() returns an error (e.g. -EINTR). In this case the error value is propagated via io->err, so return success to not confuse callers. This issue is tracked as a virtio-fs issue: https://gitlab.com/virtio-fs/qemu/issues/14 Reported-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com> Fixes:45ac96ed7c("fuse: convert direct_io to simple api") Cc: <stable@vger.kernel.org> # v5.4 Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.