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authorMarco Elver <elver@google.com>2021-04-08 13:36:00 +0300
committerPeter Zijlstra <peterz@infradead.org>2021-04-16 17:32:41 +0300
commitfb6cc127e0b6e629252cdd0f77d5a1f49db95b92 (patch)
treed87b4f9b27913150809daadbb6674929832762ba /fs/signalfd.c
parent2e498d0a74e5b88a6689ae1b811f247f91ff188e (diff)
downloadlinux-fb6cc127e0b6e629252cdd0f77d5a1f49db95b92.tar.xz
signal: Introduce TRAP_PERF si_code and si_perf to siginfo
Introduces the TRAP_PERF si_code, and associated siginfo_t field si_perf. These will be used by the perf event subsystem to send signals (if requested) to the task where an event occurred. Signed-off-by: Marco Elver <elver@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> # m68k Acked-by: Arnd Bergmann <arnd@arndb.de> # asm-generic Link: https://lkml.kernel.org/r/20210408103605.1676875-6-elver@google.com
Diffstat (limited to 'fs/signalfd.c')
-rw-r--r--fs/signalfd.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/signalfd.c b/fs/signalfd.c
index 456046e15873..040a1142915f 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -134,6 +134,10 @@ static int signalfd_copyinfo(struct signalfd_siginfo __user *uinfo,
#endif
new.ssi_addr_lsb = (short) kinfo->si_addr_lsb;
break;
+ case SIL_PERF_EVENT:
+ new.ssi_addr = (long) kinfo->si_addr;
+ new.ssi_perf = kinfo->si_perf;
+ break;
case SIL_CHLD:
new.ssi_pid = kinfo->si_pid;
new.ssi_uid = kinfo->si_uid;