---- 在 星期六, 2021-04-24 22:03:15 Chengguang Xu <cgxu519@xxxxxxxxxxxx> 撰写 ---- > Lower files may be shared in overlayfs so strictly checking write > perssmion on lower file will cause interferes between different > overlayfs instances. Any comment for this? Thanks, Chengguang > > Signed-off-by: Chengguang Xu <cgxu519@xxxxxxxxxxxx> > --- > fs/overlayfs/inode.c | 6 ------ > 1 file changed, 6 deletions(-) > > diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c > index 28c71978eb2e..17d1add0af1a 100644 > --- a/fs/overlayfs/inode.c > +++ b/fs/overlayfs/inode.c > @@ -31,12 +31,6 @@ int ovl_setattr(struct user_namespace *mnt_userns, struct dentry *dentry, > goto out; > > if (attr->ia_valid & ATTR_SIZE) { > - struct inode *realinode = d_inode(ovl_dentry_real(dentry)); > - > - err = -ETXTBSY; > - if (atomic_read(&realinode->i_writecount) < 0) > - goto out_drop_write; > - > /* Truncate should trigger data copy up as well */ > full_copy_up = true; > } > -- > 2.27.0 > > >