diff options
Diffstat (limited to 'fs/dcache.c')
| -rw-r--r-- | fs/dcache.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/dcache.c b/fs/dcache.c index 1f24cd684c51..eacc853a2e3a 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -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 @@ restart: 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; |