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Code Issues Releases Wiki Activity

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
Link: https://lkml.kernel.org/r/87zgumw8cc.fsf_-_@disp2133
Acked-by: Marco Elver <elver@google.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2021-04-30 17:58:56 -05:00
parent 50ae81305c
commit f4ac730234
3 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
fs/signalfd.c
View File

@ -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.

2
include/linux/signal.h
View File

@ -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,

10
kernel/signal.c
View File

@ -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;