Hot upgrade method and apparatus for kernel module, device, and storage medium

An electronic device, comprising:

• a processor, and a memory that is communicatively connected to the processor,
• wherein the memory stores a computer-executable instruction;
• and
• the processor is configured to execute the computer-executable instruction stored in the memory to:
• when a hot upgrade request for a kernel module is triggered, call a hot upgrade thread in a newly inserted hot upgrade updating module, and obtain, by using the hot upgrade thread, a read-write lock that is pre-inserted into a basic module in the kernel module, to block first interface address information of a hot-upgradable module in the kernel module from being called, wherein the hot upgrade updating module comprises second interface address information corresponding to each of a plurality of function call interfaces;
• and wherein the kernel module comprises the basic module and the hot-upgradable module, the hot-upgradable module is a part in the kernel module that supports a hot upgrade operation, and the basic module is configured to support hot upgrade of the hot-upgradable module;
• and
• call each function to be hot-upgraded by using the hot upgrade thread, and replace, for a function call interface corresponding to each function, the first interface address information corresponding to the function call interface with the second interface address information by using the hot upgrade thread, to complete hot upgrade for the kernel module.

A non-transitory computer-readable storage medium in which a computer-executable instruction is stored, wherein when a processor executes the computer-executable instruction, the following steps are performed:

• when a hot upgrade request for a kernel module is triggered, calling a hot upgrade thread in a newly inserted hot upgrade updating module, and obtaining, by using the hot upgrade thread, a read-write lock that is pre-inserted into a basic module in the kernel module, to block first interface address information of a hot-upgradable module in the kernel module from being called, wherein the hot upgrade updating module comprises second interface address information corresponding to each of a plurality of function call interfaces;
• and wherein the kernel module comprises the basic module and the hot-upgradable module, the hot-upgradable module is a part in the kernel module that supports a hot upgrade operation, and the basic module is configured to support hot upgrade of the hot-upgradable module;
• and
• calling each function to be hot-upgraded by using the hot upgrade thread, and replacing, for a function call interface corresponding to each function, the first interface address information corresponding to the function call interface with the second interface address information by using the hot upgrade thread, to complete hot upgrade for the kernel module.