9356fcfe0a
The device-mapper has a flag to mark targets as singleton, which is a required flag for immutable targets. Without this flag, multiple dm-verity targets can be added to a mapped device, which has no practical use cases and will let dm_table_get_immutable_target return NULL. This patch adds the missing flag, restricting only one dm-verity target per mapped device. Signed-off-by: Fan Wu <wufan@linux.microsoft.com> Signed-off-by: Mike Snitzer <snitzer@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.