Kernel registry write operations

• US 20060069909A1
• Filed: 09/23/2004
• Published: 03/30/2006
• Est. Priority Date: 09/23/2004
• Status: Abandoned Application

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Roth, Steven T., Nishiyama, Lisa M., Kuntur, Harshavardhan R., Chandramouleeswaran, Aswin
• Application Number:
  US10/947,945
• Publication Number:
  US 20060069909A1
• Time in Patent Office: Days
• US Class Current: 713/100
• CPC Class Codes: G06F 9/44505 Configuring for program initiating, e.g. using registry, configuration files
• CPC Class Codes: G06F 9/52 Program synchronisation; Mutual exclusion, e.g. by means of semaphores

Abstract

Systems, methods, and devices are provided for kernel registry write operations. One embodiment includes a computer readable medium having a program to cause a device to perform a method. The method includes forcing a write operation of kernel configuration information in a kernel registry service memory to a disk. The method also includes disabling subsequent kernel registry service memory writes to the disk while performing kernel configuration operations on the disk.

Claims

1. A computer readable medium having a program to cause a device to perform a method, comprising:

forcing a write operation of kernel configuration information in a kernel registry service memory to a disk; and

disabling subsequent kernel registry service memory writes to the disk while performing kernel configuration operations on the disk.

2. The medium of claim 1, wherein the method further includes directing a kernel registry service to write the kernel configuration information in the kernel registry service memory to the disk one time and then disable subsequent kernel registry service memory writes.

3. The medium of claim 2, wherein directing the kernel registry service includes setting a flag value in the kernel registry service.

4. The medium of claim 1, wherein the method further includes enabling subsequent kernel registry service memory writes to the disk after performing kernel configuration operations on the disk.

5. The medium of claim 4, wherein enabling subsequent kernel registry service memory writes includes setting a flag value in the kernel registry service.

6. The medium of claim 1, wherein disabling subsequent kernel registry service memory writes includes adding a flag value to the kernel registry service.

7. The medium of claim 1, wherein disabling subsequent kernel registry service memory writes includes setting a flag value in the kernel registry service.

8. A computer readable medium having a program to cause a device to perform a method, comprising:

editing a kernel configuration; and

holding the edited kernel configuration as a pending kernel configuration in memory with a current kernel configuration.

9. The medium of claim 8, wherein holding the edited kernel configuration includes saving the pending kernel configuration in a particular subdirectory that also includes the current kernel configuration.

10. The medium of claim 8, wherein holding the edited kernel configuration includes using a file name that is the same as the filename of the current kernel configuration.

11. The medium of claim 8, wherein holding the edited kernel configuration includes setting a flag in the kernel registry services to differentiate the pending kernel configuration from the current kernel configuration.

12. The medium of claim 8, further including setting a flag associated with a kernel registry service call to indicate that the kernel registry service call is to be applied to the pending kernel configuration.

13. The medium of claim 8, further including setting a flag associated with a kernel registry service call to indicate that the kernel registry service call is to be applied to the current kernel configuration.

14. The medium of claim 8, further including setting a flag associated with a kernel registry service call to indicate that the kernel registry service call is to be applied to the pending kernel configuration and a different flag to indicate that the kernel registry service call is to be applied to the current kernel configuration.

15. The medium of claim 8, wherein performing kernel configuration operations includes updating titles and modification times for saved and copied kernel configurations.

16. A kernel configuration tool, comprising:

a processor;

a memory coupled to the processor; and

program instructions provided to the memory and executable by the processor to;

force a write operation of kernel configuration information in a kernel registry service memory to a disk; and

disable subsequent kernel registry service memory writes to the disk while performing kernel configuration operations on the disk.

17. The tool of claim 16, wherein the kernel configuration operations include executing program instructions to update titles and modification times for saved and copied kernel configurations.

18. The tool of claim 16, wherein the program instructions execute to force the write operation of all kernel configuration information in the kernel registry service memory to one or more kernel registry files on the disk.

19. The tool of claim 16, wherein the program instructions can execute to automatically link pointers identifying the new kernel configuration to be used at the next boot.

20. The tool of claim 16, wherein the program instructions execute to force the write operation once a kernel configuration operation is initiated.

21. The tool of claim 20, wherein the kernel configuration operations include read, write, copy, and move.

22. The tool of claim 16, wherein the program instructions execute to force the write operation before a kernel configuration operation is initiated.

23. The tool of claim 16, wherein the program instructions to force a write operation of kernel configuration information are a synchronous operation.

24. The tool of claim 23, wherein program instructions execute to provide a confirmation that the forced write has been completed and wherein the subsequent kernel registry service memory writes are not disabled until the confirmation is provided.

25. A kernel configuration tool, comprising:

a processor;

a memory coupled to the processor; and

program instructions provided to the memory and executable by the processor to;

editing a kernel configuration; and

holding the edited kernel configuration as a pending kernel configuration in memory with a current kernel configuration.

26. The tool of claim 25, wherein a kernel registry service is used to store kernel configuration parameters for current and pending configurations.

27. The tool of claim 25, wherein holding the edited kernel configuration included storing pending kernel parameters that are to be held for next boot in a kernel memory copy of a kernel registry service.

28. The tool of claim 25, wherein the current and pending kernel configurations are saved in a particular node and are stored with the same name.

29. The tool of claim 25, wherein the saved current and pending kernel configurations each include a number of parameters and wherein each of the parameters includes a flag indicating it is for use with either the pending kernel configuration or the current configuration.

30. The tool of claim 25 wherein the tool and include program instructions to execute kernel registry service calls and wherein each of the calls can include a flag designating that pending or non-pending parameter values are to be used.

31. A kernel configuration system, comprising:

a kernel configuration tool;

a system file accessible by the kernel configuration tool; and

means for changing the state of kernel registry service memory writes between an enabled and a disabled state.

32. The system of claim 31, wherein the means for changing the state of kernel registry service memory writes includes providing a flag to be read by a kernel daemon which indicates the state of the kernel registry service memory writes.

33. The system of claim 31, wherein the means includes a set of program instructions executable on the system.

34. The system of claim 31, wherein the means for changing includes means for changing the state of the kernel registry service memory writes due to at least one of:

a system update;

a new install;

a kernel configuration change

a pre-boot change; and

a post-boot change.

35. A kernel configuration system, comprising:

a kernel configuration tool;

a system file accessible by the kernel configuration tool; and

means for holding an edited kernel configuration as a pending kernel configuration in memory with a current kernel configuration.

36. The system of claim 35, wherein the means for holding an edited kernel configuration includes providing a flag to identify to a daemon if a pending or current parameter is to be saved to disk.

37. The system of claim 36, wherein the flag is used to indicate that all next boot parameters are to be saved to disk.