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dffdcd7145
Returning -EXDEV when trying to 'mv' files/directories from different
quota realms results in copy+unlink operations instead of the faster
CEPH_MDS_OP_RENAME. This will occur even when there aren't any quotas
set in the destination directory, or if there's enough space left for
the new file(s).
This patch adds a new helper function to be called on rename operations
which will allow these operations if they can be executed. This patch
mimics userland fuse client commit b8954e5734b3 ("client:
optimize rename operation under different quota root").
Since ceph_quota_is_same_realm() is now called only from this new
helper, make it static.
URL: https://tracker.ceph.com/issues/44791
Signed-off-by: Luis Henriques <lhenriques@suse.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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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.