mainlining shenanigans
f8109d9e7d
The debugfs file prints the difference between host timestamps as a seconds/nanoseconds tuple, along with a 64-bit nanoseconds hardware timestamp. The host time is read using getnstimeofday() which is deprecated because of the y2038 overflow, and it suffers from time jumps during settimeofday() and leap seconds. Converting to ktime_get_ts64() would solve those two, but I'm going a little further here by changing to ktime_get() and printing 64-bit nanoseconds on both host and hw timestamps. This simplifies the code further and makes the output easier to understand. The format of the debugfs file obviously changes here, but this should only be read by humans and not scripts, so I assume it's fine. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> |
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| 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.