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If MDS return ESTALE, that means the MDS has already iterated all the possible active MDSes including the auth MDS or the inode is under purging. No need to retry in auth MDS and will just return ESTALE directly. Retrying in this situation will cause an infinite loop. Also, retrying like this would prevent the kernel VFS layer ESTALE handling from working properly. An ESTALE error is usually an indication that the dcache is wrong, so we want to allow the VFS to redo the lookup and revalidate it properly. URL: https://tracker.ceph.com/issues/53504 Signed-off-by: Xiubo Li <xiubli@redhat.com> Acked-by: Greg Farnum <gfarnum@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.