forked from Minki/linux
mainlining shenanigans
9d5171a8f2
The hardware trace macro feature requires access to a chunk of real memory. This patch provides a debugfs interface to do this. By writing an integer containing the size of memory to be unplugged into /sys/kernel/debug/powerpc/memtrace/enable, the code will attempt to remove that much memory from the end of each NUMA node. This patch also adds additional debugsfs files for each node that allows the tracer to interact with the removed memory, as well as a trace file that allows userspace to read the generated trace. Note that this patch does not invoke the hardware trace macro, it only allows memory to be removed during runtime for the trace macro to utilise. Signed-off-by: Rashmica Gupta <rashmica.g@gmail.com> [mpe: Minor formatting etc fixups] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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| Documentation | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
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| ipc | ||
| kernel | ||
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| samples | ||
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| tools | ||
| usr | ||
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| .cocciconfig | ||
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| 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.