#ifndef _UAPI_LINUX_AUXVEC_H #define _UAPI_LINUX_AUXVEC_H #include /* Symbolic values for the entries in the auxiliary table put on the initial stack */ #define AT_NULL 0 /* end of vector */ #define AT_IGNORE 1 /* entry should be ignored */ #define AT_EXECFD 2 /* file descriptor of program */ #define AT_PHDR 3 /* program headers for program */ #define AT_PHENT 4 /* size of program header entry */ #define AT_PHNUM 5 /* number of program headers */ #define AT_PAGESZ 6 /* system page size */ #define AT_BASE 7 /* base address of interpreter */ #define AT_FLAGS 8 /* flags */ #define AT_ENTRY 9 /* entry point of program */ #define AT_NOTELF 10 /* program is not ELF */ #define AT_UID 11 /* real uid */ #define AT_EUID 12 /* effective uid */ #define AT_GID 13 /* real gid */ #define AT_EGID 14 /* effective gid */ #define AT_PLATFORM 15 /* string identifying CPU for optimizations */ #define AT_HWCAP 16 /* arch dependent hints at CPU capabilities */ #define AT_CLKTCK 17 /* frequency at which times() increments */ /* AT_* values 18 through 22 are reserved */ #define AT_SECURE 23 /* secure mode boolean */ #define AT_BASE_PLATFORM 24 /* string identifying real platform, may * differ from AT_PLATFORM. */ #define AT_RANDOM 25 /* address of 16 random bytes */ #define AT_HWCAP2 26 /* extension of AT_HWCAP */ #define AT_EXECFN 31 /* filename of program */ #endif /* _UAPI_LINUX_AUXVEC_H */ plumbingsTobias Klauser
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authorSteven Rostedt (VMware) <rostedt@goodmis.org>2017-01-30 19:27:10 -0500
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2017-01-31 09:13:49 -0500
commit79c6f448c8b79c321e4a1f31f98194e4f6b6cae7 (patch)
tree370efda701f03cccf21e02bb1fdd3b852547d75c /include/dt-bindings/power
parent0c744ea4f77d72b3dcebb7a8f2684633ec79be88 (diff)
tracing: Fix hwlat kthread migration
The hwlat tracer creates a kernel thread at start of the tracer. It is pinned to a single CPU and will move to the next CPU after each period of running. If the user modifies the migration thread's affinity, it will not change after that happens. The original code created the thread at the first instance it was called, but later was changed to destroy the thread after the tracer was finished, and would not be created until the next instance of the tracer was established. The code that initialized the affinity was only called on the initial instantiation of the tracer. After that, it was not initialized, and the previous affinity did not match the current newly created one, making it appear that the user modified the thread's affinity when it did not, and the thread failed to migrate again. Cc: stable@vger.kernel.org Fixes: 0330f7aa8ee6 ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs") Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'include/dt-bindings/power')