Messages in this thread | | | Date | Wed, 2 Mar 2016 12:41:10 -0500 | From | Steven Rostedt <> | Subject | Re: [PATCH v4 4/7] arch, ftrace: For KASAN put hard/soft IRQ entries into separate sections |
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On Fri, 26 Feb 2016 17:48:44 +0100 Alexander Potapenko <glider@google.com> wrote:
> KASAN needs to know whether the allocation happens in an IRQ handler. > This lets us strip everything below the IRQ entry point to reduce the > number of unique stack traces needed to be stored. > > Move the definition of __irq_entry to <linux/interrupt.h> so that the > users don't need to pull in <linux/ftrace.h>. Also introduce the > __softirq_entry macro which is similar to __irq_entry, but puts the > corresponding functions to the .softirqentry.text section. > > Signed-off-by: Alexander Potapenko <glider@google.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
-- Steve
> --- > v2: - per request from Steven Rostedt, moved the declarations of __softirq_entry > and __irq_entry to <linux/interrupt.h> > > v3: - minor description changes > --- > arch/arm/kernel/vmlinux.lds.S | 1 + > arch/arm64/kernel/vmlinux.lds.S | 1 + > arch/blackfin/kernel/vmlinux.lds.S | 1 + > arch/c6x/kernel/vmlinux.lds.S | 1 + > arch/metag/kernel/vmlinux.lds.S | 1 + > arch/microblaze/kernel/vmlinux.lds.S | 1 + > arch/mips/kernel/vmlinux.lds.S | 1 + > arch/nios2/kernel/vmlinux.lds.S | 1 + > arch/openrisc/kernel/vmlinux.lds.S | 1 + > arch/parisc/kernel/vmlinux.lds.S | 1 + > arch/powerpc/kernel/vmlinux.lds.S | 1 + > arch/s390/kernel/vmlinux.lds.S | 1 + > arch/sh/kernel/vmlinux.lds.S | 1 + > arch/sparc/kernel/vmlinux.lds.S | 1 + > arch/tile/kernel/vmlinux.lds.S | 1 + > arch/x86/kernel/vmlinux.lds.S | 1 + > include/asm-generic/vmlinux.lds.h | 12 +++++++++++- > include/linux/ftrace.h | 11 ----------- > include/linux/interrupt.h | 20 ++++++++++++++++++++ > kernel/softirq.c | 2 +- > kernel/trace/trace_functions_graph.c | 1 + > 21 files changed, 49 insertions(+), 13 deletions(-) > >
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