fix unpaired rcu lock in prepend_path() (4ec6c2ae) · Commits · e / devices / android_kernel_fairphone_FP4

fs/dcache.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -2924,6 +2924,7 @@ static int prepend_path(const struct path *path,
		restart_mnt:
		read_seqbegin_or_lock(&mount_lock, &m_seq);
		seq = 0;
		rcu_read_lock();
		restart:
		bptr = *buffer;
		blen = *buflen;
		@@ -2971,6 +2972,9 @@ static int prepend_path(const struct path *path,
		goto restart;
		}
		done_seqretry(&rename_lock, seq);

		if (!(m_seq & 1))
		rcu_read_unlock();
		if (need_seqretry(&mount_lock, m_seq)) {
		m_seq = 1;
		goto restart_mnt;