Messages in this thread | | | From | Milind Chabbi <> | Date | Wed, 8 Nov 2017 07:02:22 -0800 | Subject | Re: [PATCH] perf/core: fast breakpoint modification via _IOC_MODIFY_BREAKPOINT |
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On Wed, Nov 8, 2017 at 6:15 AM, Jiri Olsa <jolsa@redhat.com> wrote: > On Mon, Nov 06, 2017 at 07:04:40AM -0800, Milind Chabbi wrote: >> Hi Jirka, >> >> I see the tabs in my sent email, do you have suggestions on how best to >> send this patch so that the tabs are preserved by the email client? >> Can anybody else also check if they received with/without tabs? >> >> release_bp_slot/reserve_bp_slot majic is not necessary since >> _IOC_MODIFY_BREAKPOINT ioctl modifies an already registered breakpoint >> without affecting the count of breakpoints active. > > but AFAICS you allow to change the breakpoint type (bp_type) > and slot counts are based on the breakpoint type > > jirka
Jirka, I am not able to fully understand your concern. Can you point to a code file and line related to your observation? The patch is modeled after the existing modify_user_hw_breakpoint() function present in events/hw_breakpoint.c; don't you see this problem in that code?
-Milind
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