| Message ID | 1426242602-52804-1-git-send-email-kirill.shutemov@linux.intel.com (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
This fixes the problem on my C8000. Tested-by: graham.gower@gmail.com On 13 March 2015 at 21:00, Kirill A. Shutemov <kirill.shutemov@linux.intel.com> wrote: > There's hack in pgd_alloc() on parisc to initialize one pmd, which is > not accounted. It leads to underflow on exit. > > Let's adjust nr_pmds on pgd_alloc() to get accounting correct. > > Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> > Cc: John David Anglin <dave.anglin@bell.net> > Cc: Aaro Koskinen <aaro.koskinen@iki.fi> > Cc: Graham Gower <graham.gower@gmail.com> > Cc: Domenico Andreoli <cavokz@gmail.com> > --- > arch/parisc/include/asm/pgalloc.h | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h > index 55ad8be9b7f3..068b2fb9a47c 100644 > --- a/arch/parisc/include/asm/pgalloc.h > +++ b/arch/parisc/include/asm/pgalloc.h > @@ -38,6 +38,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm) > /* The first pmd entry also is marked with _PAGE_GATEWAY as > * a signal that this pmd may not be freed */ > __pgd_val_set(*pgd, PxD_FLAG_ATTACHED); > + mm_inc_nr_pmds(mm); > #endif > } > return actual_pgd; > -- > 2.1.4 > -- To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h index 55ad8be9b7f3..068b2fb9a47c 100644 --- a/arch/parisc/include/asm/pgalloc.h +++ b/arch/parisc/include/asm/pgalloc.h @@ -38,6 +38,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm) /* The first pmd entry also is marked with _PAGE_GATEWAY as * a signal that this pmd may not be freed */ __pgd_val_set(*pgd, PxD_FLAG_ATTACHED); + mm_inc_nr_pmds(mm); #endif } return actual_pgd;
There's hack in pgd_alloc() on parisc to initialize one pmd, which is not accounted. It leads to underflow on exit. Let's adjust nr_pmds on pgd_alloc() to get accounting correct. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: John David Anglin <dave.anglin@bell.net> Cc: Aaro Koskinen <aaro.koskinen@iki.fi> Cc: Graham Gower <graham.gower@gmail.com> Cc: Domenico Andreoli <cavokz@gmail.com> --- arch/parisc/include/asm/pgalloc.h | 1 + 1 file changed, 1 insertion(+)