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From: Jens Axboe <[email protected]>
To: [email protected]
Cc: [email protected], [email protected],
	[email protected], Jens Axboe <[email protected]>
Subject: [PATCH 17/18] Revert "proc: don't allow async path resolution of /proc/self components"
Date: Fri, 19 Feb 2021 10:10:09 -0700	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

This reverts commit 8d4c3e76e3be11a64df95ddee52e99092d42fc19.

No longer needed, as the io-wq worker threads have the right identity.

Signed-off-by: Jens Axboe <[email protected]>
---
 fs/proc/self.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/fs/proc/self.c b/fs/proc/self.c
index cc71ce3466dc..72cd69bcaf4a 100644
--- a/fs/proc/self.c
+++ b/fs/proc/self.c
@@ -16,13 +16,6 @@ static const char *proc_self_get_link(struct dentry *dentry,
 	pid_t tgid = task_tgid_nr_ns(current, ns);
 	char *name;
 
-	/*
-	 * Not currently supported. Once we can inherit all of struct pid,
-	 * we can allow this.
-	 */
-	if (current->flags & PF_KTHREAD)
-		return ERR_PTR(-EOPNOTSUPP);
-
 	if (!tgid)
 		return ERR_PTR(-ENOENT);
 	/* max length of unsigned int in decimal + NULL term */
-- 
2.30.0


  parent reply	other threads:[~2021-02-19 17:10 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 ` [PATCH 08/18] kernel: treat PF_IO_WORKER like PF_KTHREAD for ptrace/signals Jens Axboe
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 ` Jens Axboe [this message]
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

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