Dear Maintainers, This patch is reviewed by Richard. Requesting for Maintainer's attention for patch merge.
Thanks & Regards, Sandeep Jain On Sat, Sep 17, 2016 at 04:41:47PM +0200, Richard Weinberger wrote: > On Thu, Aug 4, 2016 at 4:01 PM, Sandeep Jain <[email protected]> wrote: > > From: Steve Longerbeam <[email protected]> > > > > The MTD backing dev info objects mtd_bdi was statically allocated. > > So when MTD is built as a loadable module, this object fall in the > > vmalloc address space. > > > > The problem with that, is that the BDI APIs use wake_up_bit(), which calls > > virt_to_page() to retrieve the memory zone of the page containing the > > wait_queue to wake up, and virt_to_page() is not valid for vmalloc or > > highmem addresses. > > > > Fix this by allocating the BDI objects dynamically with kmalloc. The > > objects now fall in the logical address space so that BDI APIs will > > work in all cases (mtd builtin or module). > > > > Signed-off-by: Steve Longerbeam <[email protected]> > > Signed-off-by: Jim Baxter <[email protected]> > > Signed-off-by: Sandeep Jain <[email protected]> > > Reviewed-by: Richard Weinberger <[email protected]> > > -- > Thanks, > //richard
