Hi all, On Mon, 24 Jun 2019 21:06:59 +1000 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote: > > On Mon, 24 Jun 2019 20:49:08 +1000 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote: > > > > Today's linux-next merge of the akpm-current tree got a conflict in: > > > > mm/memory.c > > > > between commit: > > > > 29875a52915e ("mm: Add an apply_to_pfn_range interface") > > > > from the drm tree and commit: > > > > e972cea08fb3 ("mm/pgtable: drop pgtable_t variable from pte_fn_t functions") > > > > from the akpm-current tree. > > > > I fixed it up (see below my signature, then added the following merge > > resolution patch as well) and can carry the fix as necessary. This > > is now fixed as far as linux-next is concerned, but any non trivial > > conflicts should be mentioned to your upstream maintainer when your tree > > is submitted for merging. You may also want to consider cooperating > > with the maintainer of the conflicting tree to minimise any particularly > > complex conflicts. > > > > From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> > > Date: Mon, 24 Jun 2019 20:40:46 +1000 > > Subject: [PATCH] merge fixup for "mm: Add an apply_to_pfn_range interface" > > > > Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> > > --- > > include/linux/mm.h | 2 +- > > mm/as_dirty_helpers.c | 8 ++------ > > 2 files changed, 3 insertions(+), 7 deletions(-) > > > > diff --git a/include/linux/mm.h b/include/linux/mm.h > > index 87d53de3dee4..4404e18443ef 100644 > > --- a/include/linux/mm.h > > +++ b/include/linux/mm.h > > @@ -2673,7 +2673,7 @@ extern int apply_to_page_range(struct mm_struct *mm, unsigned long address, > > unsigned long size, pte_fn_t fn, void *data); > > > > struct pfn_range_apply; > > -typedef int (*pter_fn_t)(pte_t *pte, pgtable_t token, unsigned long addr, > > +typedef int (*pter_fn_t)(pte_t *pte, unsigned long addr, > > struct pfn_range_apply *closure); > > struct pfn_range_apply { > > struct mm_struct *mm; > > diff --git a/mm/as_dirty_helpers.c b/mm/as_dirty_helpers.c > > index f600e31534fb..7c863626c2a4 100644 > > --- a/mm/as_dirty_helpers.c > > +++ b/mm/as_dirty_helpers.c > > @@ -26,7 +26,6 @@ struct apply_as { > > /** > > * apply_pt_wrprotect - Leaf pte callback to write-protect a pte > > * @pte: Pointer to the pte > > - * @token: Page table token, see apply_to_pfn_range() > > * @addr: The virtual page address > > * @closure: Pointer to a struct pfn_range_apply embedded in a > > * struct apply_as > > @@ -36,8 +35,7 @@ struct apply_as { > > * > > * Return: Always zero. > > */ > > -static int apply_pt_wrprotect(pte_t *pte, pgtable_t token, > > - unsigned long addr, > > +static int apply_pt_wrprotect(pte_t *pte, unsigned long addr, > > struct pfn_range_apply *closure) > > { > > struct apply_as *aas = container_of(closure, typeof(*aas), base); > > @@ -78,7 +76,6 @@ struct apply_as_clean { > > /** > > * apply_pt_clean - Leaf pte callback to clean a pte > > * @pte: Pointer to the pte > > - * @token: Page table token, see apply_to_pfn_range() > > * @addr: The virtual page address > > * @closure: Pointer to a struct pfn_range_apply embedded in a > > * struct apply_as_clean > > @@ -91,8 +88,7 @@ struct apply_as_clean { > > * > > * Return: Always zero. > > */ > > -static int apply_pt_clean(pte_t *pte, pgtable_t token, > > - unsigned long addr, > > +static int apply_pt_clean(pte_t *pte, unsigned long addr, > > struct pfn_range_apply *closure) > > { > > struct apply_as *aas = container_of(closure, typeof(*aas), base); > > -- > > 2.20.1 > > > > -- > > Cheers, > > Stephen Rothwell > > > > diff --cc mm/memory.c > > index 462aa47f8878,f8a75528658a..e7e37fcbd687 > > --- a/mm/memory.c > > +++ b/mm/memory.c > > @@@ -2037,12 -2036,11 +2035,11 @@@ static int apply_to_pte_range(struct pf > > { > > pte_t *pte; > > int err; > > - pgtable_t token; > > spinlock_t *uninitialized_var(ptl); > > > > - pte = (mm == &init_mm) ? > > + pte = (closure->mm == &init_mm) ? > > pte_alloc_kernel(pmd, addr) : > > - pte_alloc_map_lock(mm, pmd, addr, &ptl); > > + pte_alloc_map_lock(closure->mm, pmd, addr, &ptl); > > if (!pte) > > return -ENOMEM; > > > > @@@ -2050,10 -2048,8 +2047,8 @@@ > > > > arch_enter_lazy_mmu_mode(); > > > > - token = pmd_pgtable(*pmd); > > - > > do { > > - err = closure->ptefn(pte++, token, addr, closure); > > - err = fn(pte++, addr, data); > > ++ err = closure->ptefn(pte++, addr, closure); > > if (err) > > break; > > } while (addr += PAGE_SIZE, addr != end); > > I also needed this: > > From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> > Date: Mon, 24 Jun 2019 21:04:14 +1000 > Subject: [PATCH] another fixup for "mm: Add an apply_to_pfn_range interface" > > Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> > --- > mm/memory.c | 5 ++--- > 1 file changed, 2 insertions(+), 3 deletions(-) > > diff --git a/mm/memory.c b/mm/memory.c > index e7e37fcbd687..81d71fbfca5a 100644 > --- a/mm/memory.c > +++ b/mm/memory.c > @@ -2189,14 +2189,13 @@ struct page_range_apply { > * Callback wrapper to enable use of apply_to_pfn_range for > * the apply_to_page_range interface > */ > -static int apply_to_page_range_wrapper(pte_t *pte, pgtable_t token, > - unsigned long addr, > +static int apply_to_page_range_wrapper(pte_t *pte, unsigned long addr, > struct pfn_range_apply *pter) > { > struct page_range_apply *pra = > container_of(pter, typeof(*pra), pter); > > - return pra->fn(pte, token, addr, pra->data); > + return pra->fn(pte, addr, pra->data); > } > > /* > -- > 2.20.1 I am still getting this conflict (the commit ids may have changed). Just a reminder in case you think Linus may need to know. -- Cheers, Stephen Rothwell
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