On Mon, Mar 23, 2015 at 12:54:32AM -0400, Tejun Heo wrote:
[..]
> +/**
> + * inode_attach_wb - associate an inode with its wb
> + * @inode: inode of interest
> + * @page: page being dirtied (may be NULL)
> + *
> + * If @inode doesn't have its wb, associate it with the wb matching the
> + * memcg of @page or, if @page is NULL, %current. May be called w/ or w/o
> + * @inode->i_lock.
> + */
> +static inline void inode_attach_wb(struct inode *inode, struct page *page)
> +{
> + if (!inode->i_wb)
> + __inode_attach_wb(inode, page);
> +}
Hi Tejun,
I was curious to know that why do we need this "struct page *page" when
trying to attach a inode to a bdi_writeback. Is using current's cgroup
always not sufficient?
Thanks
Vivek
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