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authorHuang Ying <ying.huang@intel.com>2011-01-30 11:15:47 +0800
committerMarcelo Tosatti <mtosatti@redhat.com>2011-03-17 13:08:27 -0300
commit0014bd990e69063b0fb78940b35439d7980ce3ee (patch)
tree56d4576cc07954eb304abaf602aba44a6aa2a4f1 /drivers/infiniband/hw/qib
parentKVM: x86: handle guest access to BBL_CR_CTL3 MSR (diff)
downloadlinux-dev-0014bd990e69063b0fb78940b35439d7980ce3ee.tar.xz
linux-dev-0014bd990e69063b0fb78940b35439d7980ce3ee.zip
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>
Diffstat (limited to 'drivers/infiniband/hw/qib')
-rw-r--r--drivers/infiniband/hw/qib/qib_user_pages.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/qib/qib_user_pages.c b/drivers/infiniband/hw/qib/qib_user_pages.c
index d7a26c1d4f37..7689e49c13c9 100644
--- a/drivers/infiniband/hw/qib/qib_user_pages.c
+++ b/drivers/infiniband/hw/qib/qib_user_pages.c
@@ -51,8 +51,8 @@ static void __qib_release_user_pages(struct page **p, size_t num_pages,
/*
* 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 @@ int qib_get_user_pages(unsigned long start_page, size_t num_pages,
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);