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Revert "proc: don't allow async path resolution of /proc/thread-self components"

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[ Upstream commit 2587890b5e ]

This reverts commit 0d4370cfe3.

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

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jens Axboe 2021-02-15 13:42:18 -07:00 committed by Greg Kroah-Hartman
parent a3025359ff
commit 87cb08dc6b
2 changed files with 1 additions and 8 deletions
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2
fs/proc/self.c
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@ -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)

7
fs/proc/thread_self.c
View 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);