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author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-05-16 16:45:23 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-05-16 16:45:23 -0700 |
commit | e6506eb241871d68647c53cb6d0a16299550ae97 (patch) | |
tree | 69e591c6cec5a83e9793eaa717f18089bcb80c16 /fs/proc | |
parent | 9d38cd06c3e332093da2c486307395b302e2e31f (diff) | |
parent | 45dd9b0666a162f8e4be76096716670cf1741f0e (diff) |
Merge tag 'trace-v4.17-rc4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fix from Steven Rostedt:
"Some of the ftrace internal events use a zero for a data size of a
field event. This is increasingly important for the histogram trigger
work that is being extended.
While auditing trace events, I found that a couple of the xen events
were used as just marking that a function was called, by creating a
static array of size zero. This can play havoc with the tracing
features if these events are used, because a zero size of a static
array is denoted as a special nul terminated dynamic array (this is
what the trace_marker code uses). But since the xen events have no
size, they are not nul terminated, and unexpected results may occur.
As trace events were never intended on being a marker to denote that a
function was hit or not, especially since function tracing and kprobes
can trivially do the same, the best course of action is to simply
remove these events"
* tag 'trace-v4.17-rc4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing/x86/xen: Remove zero data size trace events trace_xen_mmu_flush_tlb{_all}
Diffstat (limited to 'fs/proc')
0 files changed, 0 insertions, 0 deletions