kernel.git/arch/s390/include/asm/pgtable.h, branch linux-4.6.y

s390/mm: split arch/s390/mm/pgtable.c

2016-03-08T14:00:15Z

The pgtable.c file is quite big, before it grows any larger split it into pgtable.c, pgalloc.c and gmap.c. In addition move the gmap related header definitions into the new gmap.h header and all of the pgste helpers from pgtable.h to pgtable.c. Signed-off-by: Martin Schwidefsky

s390/mm: uninline pmdp_xxx functions from pgtable.h

2016-03-08T14:00:14Z

The pmdp_xxx function are smaller than their ptep_xxx counterparts but to keep things symmetrical unline them as well. Signed-off-by: Martin Schwidefsky

s390/mm: uninline ptep_xxx functions from pgtable.h

2016-03-08T14:00:12Z

The code in the various ptep_xxx functions has grown quite large, consolidate them to four out-of-line functions: ptep_xchg_direct to exchange a pte with another with immediate flushing ptep_xchg_lazy to exchange a pte with another in a batched update ptep_modify_prot_start to begin a protection flags update ptep_modify_prot_commit to commit a protection flags update Signed-off-by: Martin Schwidefsky

s390/mm: correct comment about segment table entries

2016-02-23T07:56:20Z

The comment describing the bit encoding for segment table entries is incorrect in regard to the read and write bits. The segment read bit is 0x0002 and write is 0x0001, not the other way around. Reported-by: Gerald Schaefer Signed-off-by: Martin Schwidefsky

s390/mm: remove unnecessary indirection with pgste_update_all

2016-02-23T07:56:19Z

The first parameter of pgste_update_all is a pointer to a pte. Simplify the code by passing the pte value. Signed-off-by: Martin Schwidefsky

s390, thp: remove infrastructure for handling splitting PMDs

2016-01-16T01:56:32Z

With new refcounting we don't need to mark PMDs splitting. Let's drop code to handle this. pmdp_splitting_flush() is not needed too: on splitting PMD we will do pmdp_clear_flush() + set_pte_at(). pmdp_clear_flush() will do IPI as needed for fast_gup. Signed-off-by: Kirill A. Shutemov Cc: Sasha Levin Cc: Aneesh Kumar K.V Cc: Jerome Marchand Cc: Vlastimil Babka Cc: Andrea Arcangeli Cc: Hugh Dickins Cc: Dave Hansen Cc: Mel Gorman Cc: Rik van Riel Cc: Naoya Horiguchi Cc: Steve Capper Cc: Johannes Weiner Cc: Michal Hocko Cc: Christoph Lameter Cc: David Rientjes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

s390/mm: try to avoid storage key operation in ptep_set_access_flags

2015-10-14T12:32:07Z

The call to pgste_set_key in ptep_set_access_flags can be avoided if the old pte is found to be valid at the time the new access rights are set. The function that created the old, valid pte already completed the required storage key operation. Signed-off-by: Martin Schwidefsky

s390/mm: implement soft-dirty bits for user memory change tracking

2015-10-14T12:32:05Z

Use bit 2**1 of the pte and bit 2**14 of the pmd for the soft dirty bit. The fault mechanism to do dirty tracking is already in place. Signed-off-by: Martin Schwidefsky

s390/mm: add NUMA balancing primitives

2015-08-03T08:05:58Z

Define pte_protnone and pmd_protnone for NUMA memory migration. Signed-off-by: Martin Schwidefsky

mm: clarify that the function operates on hugepage pte

2015-06-25T00:49:44Z

We have confusing functions to clear pmd, pmd_clear_* and pmd_clear. Add _huge_ to pmdp_clear functions so that we are clear that they operate on hugepage pte. We don't bother about other functions like pmdp_set_wrprotect, pmdp_clear_flush_young, because they operate on PTE bits and hence indicate they are operating on hugepage ptes Signed-off-by: Aneesh Kumar K.V Acked-by: Kirill A. Shutemov Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: Andrea Arcangeli Cc: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds