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d977706172
[ Upstream commit 6954e415264eeb5ee6be0d22d789ad12c995ee64 ] Instead of having the logic that does trace_pid_list open coded, wrap it in abstract functions. This will allow a rewrite of the logic that implements the trace_pid_list without affecting the users. Note, this causes a change in behavior. Every time a pid is written into the set_*_pid file, it creates a new list and uses RCU to update it. If pid_max is lowered, but there was a pid currently in the list that was higher than pid_max, those pids will now be removed on updating the list. The old behavior kept that from happening. The rewrite of the pid_list logic will no longer depend on pid_max, and will return the old behavior. Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
14 lines
257 B
C
14 lines
257 B
C
// SPDX-License-Identifier: GPL-2.0
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/* Do not include this file directly. */
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#ifndef _TRACE_INTERNAL_PID_LIST_H
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#define _TRACE_INTERNAL_PID_LIST_H
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struct trace_pid_list {
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int pid_max;
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unsigned long *pids;
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};
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#endif /* _TRACE_INTERNAL_PID_LIST_H */
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