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Peter Anvin" , Peter Zijlstra , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , "Liang, Kan" , Boris Ostrovsky , Josh Poimboeuf , Pawan Gupta , Sean Christopherson , Paolo Bonzini , Andy Lutomirski , Arnd Bergmann , Frederic Weisbecker , "Paul E. McKenney" , Jason Baron , Steven Rostedt , Ard Biesheuvel , Neeraj Upadhyay , Joel Fernandes , Josh Triplett , Boqun Feng , Uladzislau Rezki , Mathieu Desnoyers , Lai Jiangshan , Zqiang , Juri Lelli , Clark Williams , Yair Podemsky , Tomas Glozar , Vincent Guittot , Dietmar Eggemann , Ben Segall , Mel Gorman , Kees Cook , Andrew Morton , Christoph Hellwig , Shuah Khan , Sami Tolvanen , Miguel Ojeda , Alice Ryhl , "Mike Rapoport (Microsoft)" , Samuel Holland , Rong Xu , Nicolas Saenz Julienne , Geert Uytterhoeven , Yosry Ahmed , "Kirill A. Shutemov" , "Masami Hiramatsu (Google)" , Jinghao Jia , Luis Chamberlain , Randy Dunlap , Tiezhu Yang Subject: [PATCH v4 23/30] context_tracking: Turn CT_STATE_* into bits Date: Tue, 14 Jan 2025 18:51:36 +0100 Message-ID: <20250114175143.81438-24-vschneid@redhat.com> In-Reply-To: <20250114175143.81438-1-vschneid@redhat.com> References: <20250114175143.81438-1-vschneid@redhat.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.15 A later patch will require to easily exclude CT_STATE_KERNEL from a genuine a ct->state read CT_STATE_KERNEL, which requires that value being non-zero and exclusive with the other CT_STATE_* values. This increases the size of the CT_STATE region of the ct->state variable by two bits. Signed-off-by: Valentin Schneider --- include/linux/context_tracking_state.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/include/linux/context_tracking_state.h b/include/linux/context_tracking_state.h index 0b81248aa03e2..eb2149b20baef 100644 --- a/include/linux/context_tracking_state.h +++ b/include/linux/context_tracking_state.h @@ -11,11 +11,11 @@ enum ctx_state { CT_STATE_DISABLED = -1, /* returned by ct_state() if unknown */ - CT_STATE_KERNEL = 0, - CT_STATE_IDLE = 1, - CT_STATE_USER = 2, - CT_STATE_GUEST = 3, - CT_STATE_MAX = 4, + CT_STATE_KERNEL = 1, + CT_STATE_IDLE = 2, + CT_STATE_USER = 4, + CT_STATE_GUEST = 8, + CT_STATE_MAX = 9, }; struct context_tracking {