mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-15 01:36:46 +07:00
06a45a93e7
This moves the usermode helper locks into only code paths that use the usermode helper API from the kernel. The usermode helper locks were originally added to prevent stalling suspend, later the firmware cache was added to help with this, and further later direct filesystem lookup was added by Linus to completely bypass udev due to the amount of issues the umh approach had. The usermode helper locks were kept even when the direct filesystem lookup mechanism is used though. A lot has changed since the original usermode helper locks were added but the recent commit which added the code for firmware_enabled() are intended to address any possible races cured only as collateral by using the locks as though side consequence of code evolution and this not being addressed any time sooner. With the firmware_enabled() code in place we are a bit more sure to move the usermode helper locks to UMH only code. There is a bit of history here so let's recap a bit of it to ensure nothing is lost and things are clear. The direct filesystem approach to loading firmware is rather new, it was added via commit |
||
|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.