On Mon, Mar 15, 2021 at 01:39:13PM +0800, Qu Wenruo wrote: > During the fstests run for btrfs subpage read-write support, generic/475 > crashes the system with a very high chance. > > It turns out the cause is also affecting btrfs subpage read-only mount > so it's worthy a quick fix. > > Also the crash call site shows a new rabbit hole of hard coded > PAGE_SHIFT in readahead. > This reada problem does not only greatly slow down my test on my ARM > board, but also affects read-only mount. > > So this patchset is here to address the problems, and hope these fixes > can fit into current merge window.
Now added to the -rc queue, thanks.
