Revert "proc: don't allow async path resolution of /proc/thread-self components"
authorJens Axboe <axboe@kernel.dk>
Mon, 15 Feb 2021 20:42:18 +0000 (13:42 -0700)
committerJens Axboe <axboe@kernel.dk>
Wed, 24 Feb 2021 03:32:11 +0000 (20:32 -0700)
This reverts commit 0d4370cfe36b7f1719123b621a4ec4d9c7a25f89.

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
fs/proc/thread_self.c

index a4012154e1096bd240c1d97255807843bc932516..cc71ce3466dc0b6bf527808f1d52f0d384565522 100644 (file)
@@ -20,7 +20,7 @@ static const char *proc_self_get_link(struct dentry *dentry,
         * Not currently supported. Once we can inherit all of struct pid,
         * we can allow this.
         */
-       if (current->flags & PF_IO_WORKER)
+       if (current->flags & PF_KTHREAD)
                return ERR_PTR(-EOPNOTSUPP);
 
        if (!tgid)
index d56681d86d28a28517df9730dfe1e9bfed597387..a553273fbd41758df711b85c9647134b9eb1c631 100644 (file)
@@ -17,13 +17,6 @@ static const char *proc_thread_self_get_link(struct dentry *dentry,
        pid_t pid = task_pid_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_IO_WORKER)
-               return ERR_PTR(-EOPNOTSUPP);
-
        if (!pid)
                return ERR_PTR(-ENOENT);
        name = kmalloc(10 + 6 + 10 + 1, dentry ? GFP_KERNEL : GFP_ATOMIC);