Commit 87aab0fc authored by Jens Axboe's avatar Jens Axboe Committed by sanglipeng
Browse files

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

stable inclusion
from stable-v5.10.162
commit b76c5373f084c802964e751efb825934a9bbbbec
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7P7OH

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=b76c5373f084c802964e751efb825934a9bbbbec



--------------------------------

[ Upstream commit 9e8d9e82 ]

This reverts commit 8d4c3e76.

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

Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarsanglipeng <sanglipeng1@jd.com>
parent 2db7509a

fs/proc/self.c

+0 −7
Original line number Diff line number Diff line
@@ -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 */