backports: Remove get_user_pages() functions

These functions are not used by any driver any more, remove them. They
were introduced for the frame vector code which was used by the media
subsystem. They also case some compile problems with kernel 4.4 which
get fixed by just removing this code.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

1 files changed, 0 insertions, 70 deletions

diff --git a/backport/backport-include/linux/mm.h b/backport/backport-include/linux/mm.h
index 38c452e2..b28156d3 100644
--- a/backport/backport-include/linux/mm.h
+++ b/backport/backport-include/linux/mm.h
@@ -7,81 +7,11 @@
 #include <linux/vmalloc.h>
 #include <linux/slab.h>
 
-#ifndef VM_NODUMP
-/*
- * defined here to allow things to compile but technically
- * using this for memory regions will yield in a no-op on newer
- * kernels but on older kernels (v3.3 and older) this bit was used
- * for VM_ALWAYSDUMP. The goal was to remove this bit moving forward
- * and since we can't skip the core dump on old kernels we just make
- * this bit name now a no-op.
- *
- * For details see commits: 909af7 accb61fe cdaaa7003
- */
-#define VM_NODUMP      0x0
-#endif
-
-#ifndef VM_DONTDUMP
-#define VM_DONTDUMP    VM_NODUMP
-#endif
-
 #if LINUX_VERSION_IS_LESS(3,15,0)
 #define kvfree LINUX_BACKPORT(kvfree)
 void kvfree(const void *addr);
 #endif /* < 3.15 */
 
-#if LINUX_VERSION_IS_LESS(3,20,0)
-#define get_user_pages_locked LINUX_BACKPORT(get_user_pages_locked)
-long get_user_pages_locked(unsigned long start, unsigned long nr_pages,
-		    int write, int force, struct page **pages, int *locked);
-#define get_user_pages_unlocked LINUX_BACKPORT(get_user_pages_unlocked)
-long get_user_pages_unlocked(unsigned long start, unsigned long nr_pages,
-		    int write, int force, struct page **pages);
-#elif LINUX_VERSION_IS_LESS(4,6,0)
-static inline
-long backport_get_user_pages_locked(unsigned long start, unsigned long nr_pages,
-		    int write, int force, struct page **pages, int *locked)
-{
-	return get_user_pages_locked(current, current->mm, start, nr_pages,
-		    write, force, pages, locked);
-}
-#define get_user_pages_locked LINUX_BACKPORT(get_user_pages_locked)
-
-static inline
-long backport_get_user_pages_unlocked(unsigned long start, unsigned long nr_pages,
-				      int write, int force, struct page **pages)
-{
-	return get_user_pages_unlocked(current, current->mm, start,  nr_pages,
-		    write, force, pages);
-}
-#define get_user_pages_unlocked LINUX_BACKPORT(get_user_pages_unlocked)
-#endif
-
-#if LINUX_VERSION_IS_LESS(4,6,0)
-static inline
-long backport_get_user_pages(unsigned long start, unsigned long nr_pages,
-			    int write, int force, struct page **pages,
-			    struct vm_area_struct **vmas)
-{
-	return get_user_pages(current, current->mm, start,  nr_pages,
-		    write, force, pages, vmas);
-}
-#define get_user_pages LINUX_BACKPORT(get_user_pages)
-#endif
-
-#ifndef FOLL_TRIED
-#define FOLL_TRIED	0x800	/* a retry, previous pass started an IO */
-#endif
-
-#if LINUX_VERSION_IS_LESS(4,1,9) && \
-     LINUX_VERSION_IS_GEQ(3,6,0)
-#define page_is_pfmemalloc LINUX_BACKPORT(page_is_pfmemalloc)
-static inline bool page_is_pfmemalloc(struct page *page)
-{
-	return page->pfmemalloc;
-}
-#endif /* < 4.2 */
-
 #if LINUX_VERSION_IS_LESS(4,12,0)
 #define kvmalloc LINUX_BACKPORT(kvmalloc)
 static inline void *kvmalloc(size_t size, gfp_t flags)