diff options
| -rw-r--r-- | fs/namespace.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index 7fb7fe3da44e..c1632069b06c 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -757,7 +757,9 @@ void mntput_no_expire(struct vfsmount *mnt) vfsmount_read_unlock(cpu); goto repeat; } + preempt_disable(); dec_mnt_count(mnt); + preempt_enable(); vfsmount_read_unlock(cpu); return; @@ -766,7 +768,9 @@ void mntput_no_expire(struct vfsmount *mnt) repeat: vfsmount_write_lock(); BUG_ON(mnt->mnt_flags & MNT_MOUNTED); + preempt_disable(); dec_mnt_count(mnt); + preempt_enable(); if (count_mnt_count(mnt)) { vfsmount_write_unlock(); return; @@ -819,7 +823,9 @@ void mnt_unpin(struct vfsmount *mnt) { vfsmount_write_lock(); if (mnt->mnt_pinned) { - inc_mnt_count(mnt); + preempt_disable(); + dec_mnt_count(mnt); + preempt_enable(); mnt->mnt_pinned--; } vfsmount_write_unlock(); |