5835dc7fa6
Fix a race in xe_vm_lookup() where the vm could disappear after the lookup mutex unlock but before the get. The xe_vm_get() call must be inside the lookup mutex. Also fix a vm close race where multiple callers could potentially succeed in calling xe_vm_close_and_put(). Reported-by: Oded Gabbay <ogabbay@kernel.org> Link: https://lists.freedesktop.org/archives/intel-xe/2023-May/004704.html Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230525074144.178961-1-thomas.hellstrom@linux.intel.com Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.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.