commit 0014bd990e69063b0fb78940b35439d7980ce3ee
author Huang Ying <ying.huang@intel.com> Sun Jan 30 11:15:47 2011 +0800
committer Marcelo Tosatti <mtosatti@redhat.com> Thu Mar 17 13:08:27 2011 -0300
tree 56d4576cc07954eb304abaf602aba44a6aa2a4f1
parent 91c9c3eda4f3066980d13a6907ef84f3a99364bd

mm: export __get_user_pages

In most cases, get_user_pages and get_user_pages_fast should be used
to pin user pages in memory.  But sometimes, some special flags except
FOLL_GET, FOLL_WRITE and FOLL_FORCE are needed, for example in
following patch, KVM needs FOLL_HWPOISON.  To support these users,
__get_user_pages is exported directly.

There are some symbol name conflicts in infiniband driver, fixed them too.

Signed-off-by: Huang Ying <ying.huang@intel.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Michel Lespinasse <walken@google.com>
CC: Roland Dreier <roland@kernel.org>
CC: Ralph Campbell <infinipath@qlogic.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

drivers/infiniband/hw/qib/qib_user_pages.c

diff --git a/drivers/infiniband/hw/qib/qib_user_pages.c b/drivers/infiniband/hw/qib/qib_user_pages.c
index d7a26c1..7689e49 100644
--- a/drivers/infiniband/hw/qib/qib_user_pages.c
+++ b/drivers/infiniband/hw/qib/qib_user_pages.c
@@ -51,8 +51,8 @@
 /*
  * Call with current->mm->mmap_sem held.
  */
-static int __get_user_pages(unsigned long start_page, size_t num_pages,
-			    struct page **p, struct vm_area_struct **vma)
+static int __qib_get_user_pages(unsigned long start_page, size_t num_pages,
+				struct page **p, struct vm_area_struct **vma)
 {
 	unsigned long lock_limit;
 	size_t got;
@@ -136,7 +136,7 @@
 
 	down_write(&current->mm->mmap_sem);
 
-	ret = __get_user_pages(start_page, num_pages, p, NULL);
+	ret = __qib_get_user_pages(start_page, num_pages, p, NULL);
 
 	up_write(&current->mm->mmap_sem);