diff options
Diffstat (limited to 'fs/overlayfs/inode.c')
| -rw-r--r-- | fs/overlayfs/inode.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index 956c6f9c9c11..8130ae54a332 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -561,6 +561,15 @@ static inline void ovl_lockdep_annotate_inode_mutex_key(struct inode *inode) #endif } +static void ovl_next_ino(struct inode *inode) +{ + struct ovl_fs *ofs = inode->i_sb->s_fs_info; + + inode->i_ino = atomic_long_inc_return(&ofs->last_ino); + if (unlikely(!inode->i_ino)) + inode->i_ino = atomic_long_inc_return(&ofs->last_ino); +} + static void ovl_map_ino(struct inode *inode, unsigned long ino, int fsid) { int xinobits = ovl_xino_bits(inode->i_sb); @@ -572,12 +581,12 @@ static void ovl_map_ino(struct inode *inode, unsigned long ino, int fsid) * consistent with d_ino and st_ino values. An i_ino value inconsistent * with d_ino also causes nfsd readdirplus to fail. */ + inode->i_ino = ino; if (ovl_same_dev(inode->i_sb)) { - inode->i_ino = ino; if (xinobits && fsid && !(ino >> (64 - xinobits))) inode->i_ino |= (unsigned long)fsid << (64 - xinobits); - } else { - inode->i_ino = get_next_ino(); + } else if (S_ISDIR(inode->i_mode)) { + ovl_next_ino(inode); } } |