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Merge tag 'v5.5-rc1' into core/kprobes, to resolve conflicts

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Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar
2019-12-10 10:11:00 +01:00
parent f66c0447cc e42617b825
commit 2040cf9f59
7376 changed files with 305893 additions and 140807 deletions
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14
arch/x86/kernel/ftrace.c
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@@ -606,6 +606,20 @@ void prepare_ftrace_return(unsigned long self_addr, unsigned long *parent,
if (unlikely(atomic_read(&current->tracing_graph_pause)))
return;
/*
* If the return location is actually pointing directly to
* the start of a direct trampoline (if we trace the trampoline
* it will still be offset by MCOUNT_INSN_SIZE), then the
* return address is actually off by one word, and we
* need to adjust for that.
*/
if (ftrace_direct_func_count) {
if (ftrace_find_direct_func(self_addr + MCOUNT_INSN_SIZE)) {
self_addr = *parent;
parent++;
}
}
/*
* Protect against fault, even if it shouldn't
* happen. This tool is too much intrusive to