linux-kernel - [PATCH 8/6] signal: Rename SIL_PERF_EVENT SIL_FAULT_PERF

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Date:   Fri, 16 Jul 2021 11:07:31 -0500
From:   ebiederm@...ssion.com (Eric W. Biederman)
To:     Marco Elver <elver@...gle.com>
Cc:     Arnd Bergmann <arnd@...db.de>, Florian Weimer <fweimer@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Collingbourne <pcc@...gle.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Alexander Potapenko <glider@...gle.com>,
        sparclinux <sparclinux@...r.kernel.org>,
        linux-arch <linux-arch@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux API <linux-api@...r.kernel.org>,
        kasan-dev <kasan-dev@...glegroups.com>
Subject: [PATCH 8/6] signal: Rename SIL_PERF_EVENT SIL_FAULT_PERF_EVENT for consistency


It helps to know which part of the siginfo structure the siginfo_layout
value is talking about.

v1: https://lkml.kernel.org/r/m18s4zs7nu.fsf_-_@fess.ebiederm.org
v2: https://lkml.kernel.org/r/20210505141101.11519-9-ebiederm@xmission.com
Acked-by: Marco Elver <elver@...gle.com>
Signed-off-by: Eric W. Biederman <ebiederm@...ssion.com>
---
 fs/signalfd.c          |  4 ++--
 include/linux/signal.h |  2 +-
 kernel/signal.c        | 10 +++++-----
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/fs/signalfd.c b/fs/signalfd.c
index 167b5889db4b..040e1cf90528 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -114,10 +114,10 @@ static int signalfd_copyinfo(struct signalfd_siginfo __user *uinfo,
 		break;
 	case SIL_FAULT_BNDERR:
 	case SIL_FAULT_PKUERR:
-	case SIL_PERF_EVENT:
+	case SIL_FAULT_PERF_EVENT:
 		/*
 		 * Fall through to the SIL_FAULT case.  SIL_FAULT_BNDERR,
-		 * SIL_FAULT_PKUERR, and SIL_PERF_EVENT are only
+		 * SIL_FAULT_PKUERR, and SIL_FAULT_PERF_EVENT are only
 		 * generated by faults that deliver them synchronously to
 		 * userspace.  In case someone injects one of these signals
 		 * and signalfd catches it treat it as SIL_FAULT.
diff --git a/include/linux/signal.h b/include/linux/signal.h
index 3454c7ff0778..3f96a6374e4f 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -44,7 +44,7 @@ enum siginfo_layout {
 	SIL_FAULT_MCEERR,
 	SIL_FAULT_BNDERR,
 	SIL_FAULT_PKUERR,
-	SIL_PERF_EVENT,
+	SIL_FAULT_PERF_EVENT,
 	SIL_CHLD,
 	SIL_RT,
 	SIL_SYS,
diff --git a/kernel/signal.c b/kernel/signal.c
index 2181423e562a..332b21f2fe72 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1213,7 +1213,7 @@ static inline bool has_si_pid_and_uid(struct kernel_siginfo *info)
 	case SIL_FAULT_MCEERR:
 	case SIL_FAULT_BNDERR:
 	case SIL_FAULT_PKUERR:
-	case SIL_PERF_EVENT:
+	case SIL_FAULT_PERF_EVENT:
 	case SIL_SYS:
 		ret = false;
 		break;
@@ -2580,7 +2580,7 @@ static void hide_si_addr_tag_bits(struct ksignal *ksig)
 	case SIL_FAULT_MCEERR:
 	case SIL_FAULT_BNDERR:
 	case SIL_FAULT_PKUERR:
-	case SIL_PERF_EVENT:
+	case SIL_FAULT_PERF_EVENT:
 		ksig->info.si_addr = arch_untagged_si_addr(
 			ksig->info.si_addr, ksig->sig, ksig->info.si_code);
 		break;
@@ -3265,7 +3265,7 @@ enum siginfo_layout siginfo_layout(unsigned sig, int si_code)
 				layout = SIL_FAULT_PKUERR;
 #endif
 			else if ((sig == SIGTRAP) && (si_code == TRAP_PERF))
-				layout = SIL_PERF_EVENT;
+				layout = SIL_FAULT_PERF_EVENT;
 			else if (IS_ENABLED(CONFIG_SPARC) &&
 				 (sig == SIGILL) && (si_code == ILL_ILLTRP))
 				layout = SIL_FAULT_TRAPNO;
@@ -3394,7 +3394,7 @@ void copy_siginfo_to_external32(struct compat_siginfo *to,
 		to->si_addr = ptr_to_compat(from->si_addr);
 		to->si_pkey = from->si_pkey;
 		break;
-	case SIL_PERF_EVENT:
+	case SIL_FAULT_PERF_EVENT:
 		to->si_addr = ptr_to_compat(from->si_addr);
 		to->si_perf_data = from->si_perf_data;
 		to->si_perf_type = from->si_perf_type;
@@ -3471,7 +3471,7 @@ static int post_copy_siginfo_from_user32(kernel_siginfo_t *to,
 		to->si_addr = compat_ptr(from->si_addr);
 		to->si_pkey = from->si_pkey;
 		break;
-	case SIL_PERF_EVENT:
+	case SIL_FAULT_PERF_EVENT:
 		to->si_addr = compat_ptr(from->si_addr);
 		to->si_perf_data = from->si_perf_data;
 		to->si_perf_type = from->si_perf_type;
-- 
2.20.1