On 2013/12/6 21:46, Trond Myklebust wrote: > > On Dec 6, 2013, at 4:30, Rui Xiang <rui.xiang@xxxxxxxxxx> wrote: > >> In common function nfs_instantiate to create, mkdir, and mknod, >> if dentry->d_inode exits, it should return -EEXIST instead of >> -EACCES. >> >> Signed-off-by: Rui Xiang <rui.xiang@xxxxxxxxxx> >> --- >> fs/nfs/dir.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c >> index 2518865..e570b37 100644 >> --- a/fs/nfs/dir.c >> +++ b/fs/nfs/dir.c >> @@ -1547,7 +1547,7 @@ int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fhandle, >> struct dentry *parent = dget_parent(dentry); >> struct inode *dir = parent->d_inode; >> struct inode *inode; >> - int error = -EACCES; >> + int error = -EEXIST; >> >> d_drop(dentry); >> > > That looks like it should rather be a WARN_ON(). If the caller has set the dentry's inode before creating the file, then something is really wrong. It can return -EEXIST to say that the file already exits, then will exit. But why does it need a WARN_ON(). Please give me some advise. Thanks Rui > > Cheers > Trond > -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html