uprobes: Allocate ->utask before handler_chain() for tracing handlers

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uprobe_trace_print() and uprobe_perf_print() need to pass the additional
info to call_fetch() methods, currently there is no simple way to do this.

current->utask looks like a natural place to hold this info, but we need
to allocate it before handler_chain().

This is a bit unfortunate, perhaps we will find a better solution later,
but this is simple and should work right now.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>

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Oleg Nesterov 2013-11-26 09:35:25 +09:00 • committed by Steven Rostedt

parent b079d374fd

commit 72fd293aa9

1 changed files with 4 additions and 0 deletions

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kernel/events/uprobes.c

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