From 2587890b5e2892dfecaa5e5126bdac8076a4e6f7 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Mon, 15 Feb 2021 13:42:42 -0700
Subject: [PATCH] Revert "proc: don't allow async path resolution of /proc/self
 components"

This reverts commit 8d4c3e76e3be11a64df95ddee52e99092d42fc19.

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

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 fs/proc/self.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/fs/proc/self.c b/fs/proc/self.c
index cc71ce3466dc0..72cd69bcaf4ad 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 */
-- 
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