diff options
Diffstat (limited to 'fs/overlayfs')
| -rw-r--r-- | fs/overlayfs/copy_up.c | 12 | ||||
| -rw-r--r-- | fs/overlayfs/inode.c | 4 |
2 files changed, 12 insertions, 4 deletions
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c index 13cb60b52bd6..e963701b4c87 100644 --- a/fs/overlayfs/copy_up.c +++ b/fs/overlayfs/copy_up.c @@ -853,7 +853,7 @@ static int ovl_copy_up_tmpfile(struct ovl_copy_up_ctx *c) { struct ovl_fs *ofs = OVL_FS(c->dentry->d_sb); struct inode *udir = d_inode(c->destdir); - struct dentry *temp, *upper; + struct dentry *temp, *upper, *newdentry = NULL; struct file *tmpfile; int err; @@ -889,6 +889,14 @@ static int ovl_copy_up_tmpfile(struct ovl_copy_up_ctx *c) err = PTR_ERR(upper); if (!IS_ERR(upper)) { err = ovl_do_link(ofs, temp, udir, upper); + if (!err) { + /* + * Record the linked dentry -- not the disconnected + * O_TMPFILE dentry -- so that ->d_revalidate() on + * the upper fs sees the real parent/name. + */ + newdentry = dget(upper); + } end_creating(upper); } @@ -903,7 +911,7 @@ static int ovl_copy_up_tmpfile(struct ovl_copy_up_ctx *c) if (!c->metacopy) ovl_set_upperdata(d_inode(c->dentry)); - ovl_inode_update(d_inode(c->dentry), dget(temp)); + ovl_inode_update(d_inode(c->dentry), newdentry); out: ovl_end_write(c->dentry); diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index 00c69707bda9..bc71231cad53 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -783,8 +783,8 @@ static const struct address_space_operations ovl_aops = { * * This chain is valid: * - inode->i_rwsem (inode_lock[2]) - * - upper_mnt->mnt_sb->s_writers (ovl_want_write[0]) * - OVL_I(inode)->lock (ovl_inode_lock[2]) + * - upper_mnt->mnt_sb->s_writers (ovl_want_write[0]) * - OVL_I(lowerinode)->lock (ovl_inode_lock[1]) * * And this chain is valid: @@ -797,8 +797,8 @@ static const struct address_space_operations ovl_aops = { * held, because it is in reverse order of the non-nested case using the same * upper fs: * - inode->i_rwsem (inode_lock[1]) - * - upper_mnt->mnt_sb->s_writers (ovl_want_write[0]) * - OVL_I(inode)->lock (ovl_inode_lock[1]) + * - upper_mnt->mnt_sb->s_writers (ovl_want_write[0]) */ #define OVL_MAX_NESTING FILESYSTEM_MAX_STACK_DEPTH |