Mike Rapoport 897ab3e0c4 userfaultfd: non-cooperative: add event for memory unmaps ... When a non-cooperative userfaultfd monitor copies pages in the background, it may encounter regions that were already unmapped. Addition of UFFD_EVENT_UNMAP allows the uffd monitor to track precisely changes in the virtual memory layout. Since there might be different uffd contexts for the affected VMAs, we first should create a temporary representation for the unmap event for each uffd context and then notify them one by one to the appropriate userfault file descriptors. The event notification occurs after the mmap_sem has been released. [arnd@arndb.de: fix nommu build] Link: http://lkml.kernel.org/r/20170203165141.3665284-1-arnd@arndb.de [mhocko@suse.com: fix nommu build] Link: http://lkml.kernel.org/r/20170202091503.GA22823@dhcp22.suse.cz Link: http://lkml.kernel.org/r/1485542673-24387-3-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Pavel Emelyanov <xemul@virtuozzo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2017-02-24 17:46:55 -08:00
..
kmemcheck
amdtopology.c
debug_pagetables.c
dump_pagetables.c	x86/mm/ptdump: Add address marker for KASAN shadow region	2017-02-16 19:53:25 +01:00
extable.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
fault.c	x86/mm: Drop unused argument 'removed' from sync_global_pgds()	2016-12-15 12:46:07 +01:00
gup.c	mm: fix get_user_pages() vs device-dax pud mappings	2017-02-24 17:46:54 -08:00
highmem_32.c
hugetlbpage.c
ident_map.c
init.c
init_32.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
init_64.c	mm/memory_hotplug: set magic number to page->freelist instead of page->lru.next	2017-02-22 16:41:29 -08:00
iomap_32.c
ioremap.c
kasan_init_64.c
kaslr.c
kmmio.c
Makefile
mm_internal.h
mmap.c
mmio-mod.c
mpx.c	userfaultfd: non-cooperative: add event for memory unmaps	2017-02-24 17:46:55 -08:00
numa.c	ACPI/NUMA: Do not map pxm to node when NUMA is turned off	2016-12-15 11:32:32 +01:00
numa_32.c
numa_64.c
numa_emulation.c
numa_internal.h
pageattr-test.c
pageattr.c	x86/mm/cpa: Avoid wbinvd() for PREEMPT	2017-01-30 15:33:52 +01:00
pat.c
pat_internal.h
pat_rbtree.c	x86/mm/pat: Use rb_entry()	2017-02-04 17:18:00 +01:00
pf_in.c
pf_in.h
pgtable.c	mm, x86: add support for PUD-sized transparent hugepages	2017-02-24 17:46:54 -08:00
pgtable_32.c
physaddr.c
physaddr.h
pkeys.c
setup_nx.c
srat.c
testmmiotrace.c
tlb.c