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[ Upstream commitfb33c114d3] It's possible for the VFS to completely forget about an inode, but for it to still be sitting on the cap release queue. If the MDS sends the client a cap message for such an inode, it just ignores it today, which can lead to a stall of up to 5s until the cap release queue is flushed. If we get a cap message for an inode that can't be located, then go ahead and flush the cap release queue. Cc: stable@vger.kernel.org URL: https://tracker.ceph.com/issues/45532 Fixes:1e9c2eb681("ceph: delete stale dentry when last reference is dropped") Reported-and-Tested-by: Andrej Filipčič <andrej.filipcic@ijs.si> Suggested-by: Yan, Zheng <zyan@redhat.com> Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Sasha Levin <sashal@kernel.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.