Re: [PATCH v6 15/15] xfs, dax: introduce xfs_break_dax_layouts()

Hi Dan, I love your patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v4.16-rc5] [cannot apply to next-20180316] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url:

Re: [PATCH v6 15/15] xfs, dax: introduce xfs_break_dax_layouts()

Looks fine, Reviewed-by: Christoph Hellwig ___ Linux-nvdimm mailing list Linux-nvdimm@lists.01.org https://lists.01.org/mailman/listinfo/linux-nvdimm

[PATCH v6 15/15] xfs, dax: introduce xfs_break_dax_layouts()

xfs_break_dax_layouts(), similar to xfs_break_leased_layouts(), scans for busy / pinned dax pages and waits for those pages to go idle before any potential extent unmap operation. dax_layout_busy_page() handles synchronizing against new page-busy events (get_user_pages). It invalidates all