diff options
Diffstat (limited to 'fs/overlayfs/super.c')
| -rw-r--r-- | fs/overlayfs/super.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index eb81d8760a6a..8d8cd46e1482 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -211,6 +211,7 @@ static void ovl_destroy_inode(struct inode *inode) static void ovl_free_fs(struct ovl_fs *ofs) { + struct vfsmount **mounts; unsigned i; iput(ofs->workbasedir_trap); @@ -224,10 +225,14 @@ static void ovl_free_fs(struct ovl_fs *ofs) dput(ofs->workbasedir); if (ofs->upperdir_locked) ovl_inuse_unlock(ovl_upper_mnt(ofs)->mnt_root); + + /* Hack! Reuse ofs->layers as a vfsmount array before freeing it */ + mounts = (struct vfsmount **) ofs->layers; for (i = 0; i < ofs->numlayer; i++) { iput(ofs->layers[i].trap); - mntput(ofs->layers[i].mnt); + mounts[i] = ofs->layers[i].mnt; } + kern_unmount_array(mounts, ofs->numlayer); kfree(ofs->layers); for (i = 0; i < ofs->numfs; i++) free_anon_bdev(ofs->fs[i].pseudo_dev); |