Re: [PATCH] vfs: Turn the unlinked inode counter into a percpu counter

From: Andi Kleen
Date: Mon Jul 14 2014 - 11:49:40 EST


> > diff --git a/fs/inode.c b/fs/inode.c
> > index f96d2a6..4820c35 100644
> > --- a/fs/inode.c
> > +++ b/fs/inode.c
> > @@ -234,10 +234,8 @@ void __destroy_inode(struct inode *inode)
> > BUG_ON(inode_has_buffers(inode));
> > security_inode_free(inode);
> > fsnotify_inode_delete(inode);
> > - if (!inode->i_nlink) {
> > - WARN_ON(atomic_long_read(&inode->i_sb->s_remove_count) == 0);
>
> This is not mentioned in the description, but I guess it makes sense since
> it'd be quite expensive.

Yes. I guess we could still check the local counter. I can re-add that.

-Andi
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