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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>