sched, trace: Fix prev_state output in sched_switch tracepoint
commit 3f5fe9fe ("sched/debug: Fix task state recording/printout") tried to fix the problem introduced by a previous commit efb40f58 ("sched/tracing: Fix trace_sched_switch task-state printing"). However the prev_state output in sched_switch is still broken. task_state_index() uses fls() which considers the LSB as 1. Left shifting 1 by this value gives an incorrect mapping to the task state. Fix this by decrementing the value returned by __get_task_state() before shifting. Link: http://lkml.kernel.org/r/1540882473-1103-1-git-send-email-pkondeti@codeaurora.org Cc: stable@vger.kernel.org Fixes: 3f5fe9fe ("sched/debug: Fix task state recording/printout") Signed-off-by:Pavankumar Kondeti <pkondeti@codeaurora.org> Signed-off-by:
Steven Rostedt (VMware) <rostedt@goodmis.org>
parent
b1b35f2e
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