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author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-21 13:47:29 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-21 13:47:29 -0700 |
commit | 0214f46b3a0383d6e33c297e7706216b6a550e4b (patch) | |
tree | 98f94fa818963d4c2b5ad2a16cd97ec19d036dce /kernel/events | |
parent | 40fafdcbcd7a74e80ab0229b35bf6e497831e28f (diff) | |
parent | 84fe4cc09abc1a5ef3a282db3ed10f4d3f1e6a0b (diff) | |
download | linux-stable-0214f46b3a0383d6e33c297e7706216b6a550e4b.tar.gz linux-stable-0214f46b3a0383d6e33c297e7706216b6a550e4b.tar.bz2 linux-stable-0214f46b3a0383d6e33c297e7706216b6a550e4b.zip |
Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull core signal handling updates from Eric Biederman:
"It was observed that a periodic timer in combination with a
sufficiently expensive fork could prevent fork from every completing.
This contains the changes to remove the need for that restart.
This set of changes is split into several parts:
- The first part makes PIDTYPE_TGID a proper pid type instead
something only for very special cases. The part starts using
PIDTYPE_TGID enough so that in __send_signal where signals are
actually delivered we know if the signal is being sent to a a group
of processes or just a single process.
- With that prep work out of the way the logic in fork is modified so
that fork logically makes signals received while it is running
appear to be received after the fork completes"
* 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (22 commits)
signal: Don't send signals to tasks that don't exist
signal: Don't restart fork when signals come in.
fork: Have new threads join on-going signal group stops
fork: Skip setting TIF_SIGPENDING in ptrace_init_task
signal: Add calculate_sigpending()
fork: Unconditionally exit if a fatal signal is pending
fork: Move and describe why the code examines PIDNS_ADDING
signal: Push pid type down into complete_signal.
signal: Push pid type down into __send_signal
signal: Push pid type down into send_signal
signal: Pass pid type into do_send_sig_info
signal: Pass pid type into send_sigio_to_task & send_sigurg_to_task
signal: Pass pid type into group_send_sig_info
signal: Pass pid and pid type into send_sigqueue
posix-timers: Noralize good_sigevent
signal: Use PIDTYPE_TGID to clearly store where file signals will be sent
pid: Implement PIDTYPE_TGID
pids: Move the pgrp and session pid pointers from task_struct to signal_struct
kvm: Don't open code task_pid in kvm_vcpu_ioctl
pids: Compute task_tgid using signal->leader_pid
...
Diffstat (limited to 'kernel/events')
-rw-r--r-- | kernel/events/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c index 80f456ec5d89..2a62b96600ad 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -1334,7 +1334,7 @@ static u32 perf_event_pid_type(struct perf_event *event, struct task_struct *p, static u32 perf_event_pid(struct perf_event *event, struct task_struct *p) { - return perf_event_pid_type(event, p, __PIDTYPE_TGID); + return perf_event_pid_type(event, p, PIDTYPE_TGID); } static u32 perf_event_tid(struct perf_event *event, struct task_struct *p) |