!19298 pid: Add a judgment for ns null in pid_nr_ns
Merge Pull Request from: @ci-robot
PR sync from: Liu Kai liukai284@huawei.com https://mailweb.openeuler.org/archives/list/kernel@openeuler.org/message/2E7OMDLZSHEMHNC2BZCS2Z5WL4LLEWQQ/
https://gitee.com/src-openeuler/kernel/issues/ID6BVM
Link:https://gitee.com/openeuler/kernel/pulls/19298
Reviewed-by: Zhang Qiao zhangqiao22@huawei.com Signed-off-by: Yuan Can yuancan@huawei.com
The openEuler kernel is the core of the openEuler OS, serving as the foundation of system performance and stability and a bridge between processors, devices, and services.
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 htmldocsormake pdfdocs. The formatted documentation can also be read online at:There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file.
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.