From: Jens Axboe <[email protected]>
To: [email protected]
Cc: [email protected], [email protected],
[email protected], Jens Axboe <[email protected]>
Subject: [PATCH 08/18] kernel: treat PF_IO_WORKER like PF_KTHREAD for ptrace/signals
Date: Fri, 19 Feb 2021 10:10:00 -0700 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
---
kernel/ptrace.c | 2 +-
kernel/signal.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 61db50f7ca86..821cf1723814 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -375,7 +375,7 @@ static int ptrace_attach(struct task_struct *task, long request,
audit_ptrace(task);
retval = -EPERM;
- if (unlikely(task->flags & PF_KTHREAD))
+ if (unlikely(task->flags & (PF_KTHREAD | PF_IO_WORKER)))
goto out;
if (same_thread_group(task, current))
goto out;
diff --git a/kernel/signal.c b/kernel/signal.c
index 5ad8566534e7..ba4d1ef39a9e 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -91,7 +91,7 @@ static bool sig_task_ignored(struct task_struct *t, int sig, bool force)
return true;
/* Only allow kernel generated signals to this kthread */
- if (unlikely((t->flags & PF_KTHREAD) &&
+ if (unlikely((t->flags & (PF_KTHREAD | PF_IO_WORKER)) &&
(handler == SIG_KTHREAD_KERNEL) && !force))
return true;
@@ -1096,7 +1096,7 @@ static int __send_signal(int sig, struct kernel_siginfo *info, struct task_struc
/*
* Skip useless siginfo allocation for SIGKILL and kernel threads.
*/
- if ((sig == SIGKILL) || (t->flags & PF_KTHREAD))
+ if ((sig == SIGKILL) || (t->flags & (PF_KTHREAD | PF_IO_WORKER)))
goto out_set;
/*
--
2.30.0
next prev parent reply other threads:[~2021-02-19 17:11 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-19 17:09 [PATCHSET RFC 0/18] Remove kthread usage from io_uring Jens Axboe
2021-02-19 17:09 ` [PATCH 01/18] io_uring: remove the need for relying on an io-wq fallback worker Jens Axboe
2021-02-19 20:25 ` Eric W. Biederman
2021-02-19 20:37 ` Jens Axboe
2021-02-22 13:46 ` Pavel Begunkov
2021-02-19 17:09 ` [PATCH 02/18] io-wq: don't create any IO workers upfront Jens Axboe
2021-02-19 17:09 ` [PATCH 03/18] io_uring: disable io-wq attaching Jens Axboe
2021-02-19 17:09 ` [PATCH 04/18] io-wq: get rid of wq->use_refs Jens Axboe
2021-02-19 17:09 ` [PATCH 05/18] io_uring: tie async worker side to the task context Jens Axboe
2021-02-20 8:11 ` Hao Xu
2021-02-20 14:38 ` Jens Axboe
2021-02-21 9:16 ` Hao Xu
2021-02-19 17:09 ` [PATCH 06/18] io-wq: don't pass 'wqe' needlessly around Jens Axboe
2021-02-19 17:09 ` [PATCH 07/18] arch: setup PF_IO_WORKER threads like PF_KTHREAD Jens Axboe
2021-02-19 22:21 ` Eric W. Biederman
2021-02-19 23:26 ` Jens Axboe
2021-02-19 17:10 ` Jens Axboe [this message]
2021-02-19 17:10 ` [PATCH 09/18] io-wq: fork worker threads from original task Jens Axboe
2021-03-04 12:23 ` Stefan Metzmacher
2021-03-04 13:05 ` Jens Axboe
2021-03-04 13:19 ` Stefan Metzmacher
2021-03-04 16:13 ` Stefan Metzmacher
2021-03-04 16:42 ` Jens Axboe
2021-03-04 17:09 ` Stefan Metzmacher
2021-03-04 17:32 ` Jens Axboe
2021-03-04 18:19 ` Jens Axboe
2021-03-04 18:56 ` Linus Torvalds
2021-03-04 19:19 ` Jens Axboe
2021-03-04 19:46 ` Linus Torvalds
2021-03-04 19:54 ` Jens Axboe
2021-03-04 20:00 ` Jens Axboe
2021-03-04 20:23 ` Jens Axboe
2021-03-04 20:50 ` Linus Torvalds
2021-03-04 20:54 ` Jens Axboe
2021-03-05 19:16 ` Eric W. Biederman
2021-03-05 19:00 ` Eric W. Biederman
2021-02-19 17:10 ` [PATCH 10/18] io-wq: worker idling always returns false Jens Axboe
2021-02-19 17:10 ` [PATCH 11/18] io_uring: remove any grabbing of context Jens Axboe
2021-02-19 17:10 ` [PATCH 12/18] io_uring: remove io_identity Jens Axboe
2021-02-19 17:10 ` [PATCH 13/18] io-wq: only remove worker from free_list, if it was there Jens Axboe
2021-02-19 17:10 ` [PATCH 14/18] io-wq: make io_wq_fork_thread() available to other users Jens Axboe
2021-02-19 17:10 ` [PATCH 15/18] io_uring: move SQPOLL thread io-wq forked worker Jens Axboe
2021-02-19 17:10 ` [PATCH 16/18] Revert "proc: don't allow async path resolution of /proc/thread-self components" Jens Axboe
2021-02-19 17:10 ` [PATCH 17/18] Revert "proc: don't allow async path resolution of /proc/self components" Jens Axboe
2021-02-19 17:10 ` [PATCH 18/18] net: remove cmsg restriction from io_uring based send/recvmsg calls Jens Axboe
2021-02-19 23:44 ` [PATCHSET RFC 0/18] Remove kthread usage from io_uring Stefan Metzmacher
2021-02-19 23:51 ` Jens Axboe
2021-02-21 5:04 ` Linus Torvalds
2021-02-21 21:22 ` Jens Axboe
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
[email protected] \
[email protected] \
[email protected] \
[email protected] \
[email protected] \
[email protected] \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox