The patch titled
Subject: userfaultfd-non-cooperative-add-event-for-memory-unmaps-fix
has been removed from the -mm tree. Its filename was
userfaultfd-non-cooperative-add-event-for-memory-unmaps-fix.patch
This patch was dropped because it was folded into userfaultfd-non-cooperative-add-event-for-memory-unmaps.patch
------------------------------------------------------
From: Michal Hocko <mhocko@xxxxxxxx>
Subject: userfaultfd-non-cooperative-add-event-for-memory-unmaps-fix
This breaks compilation on nommu configs.
mm/nommu.c:1201:15: error: conflicting types for 'do_mmap'
unsigned long do_mmap(struct file *file,
^
In file included from mm/nommu.c:19:0:
./include/linux/mm.h:2089:22: note: previous declaration of 'do_mmap' was here
extern unsigned long do_mmap(struct file *file, unsigned long addr,
^
mm/nommu.c:1580:5: error: conflicting types for 'do_munmap'
int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
^
In file included from mm/nommu.c:19:0:
./include/linux/mm.h:2093:12: note: previous declaration of 'do_munmap' was here
extern int do_munmap(struct mm_struct *, unsigned long, size_t,
^
make[1]: *** [mm/nommu.o] Error 1
CONFIG_USERFAULTFD depends on CONFIG_MMU so I guess we are OK to just ignore the
argument.
Link: http://lkml.kernel.org/r/20170202091503.GA22823@xxxxxxxxxxxxxx
Signed-off-by: Michal Hocko <mhocko@xxxxxxxx>
Cc: Mike Rapoport <rppt@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/nommu.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff -puN mm/nommu.c~userfaultfd-non-cooperative-add-event-for-memory-unmaps-fix mm/nommu.c
--- a/mm/nommu.c~userfaultfd-non-cooperative-add-event-for-memory-unmaps-fix
+++ a/mm/nommu.c
@@ -1205,7 +1205,8 @@ unsigned long do_mmap(struct file *file,
unsigned long flags,
vm_flags_t vm_flags,
unsigned long pgoff,
- unsigned long *populate)
+ unsigned long *populate,
+ struct list_head *uf_unused)
{
struct vm_area_struct *vma;
struct vm_region *region;
@@ -1577,7 +1578,7 @@ static int shrink_vma(struct mm_struct *
* - under NOMMU conditions the chunk to be unmapped must be backed by a single
* VMA, though it need not cover the whole VMA
*/
-int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
+int do_munmap(struct mm_struct *mm, unsigned long start, size_t len, struct list_head *uf)
{
struct vm_area_struct *vma;
unsigned long end;
@@ -1643,7 +1644,7 @@ int vm_munmap(unsigned long addr, size_t
int ret;
down_write(&mm->mmap_sem);
- ret = do_munmap(mm, addr, len);
+ ret = do_munmap(mm, addr, len, NULL);
up_write(&mm->mmap_sem);
return ret;
}
_
Patches currently in -mm which might be from mhocko@xxxxxxxx are
mm-page_alloc-do-not-depend-on-cpu-hotplug-locks-inside-the-allocator.patch
userfaultfd-non-cooperative-add-event-for-memory-unmaps.patch
vmalloc-back-of-when-the-current-is-killed.patch
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