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| author | Huang Ying <ying.huang@intel.com> | 2011-01-30 11:15:47 +0800 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2011-03-17 13:08:27 -0300 |
| commit | 0014bd990e69063b0fb78940b35439d7980ce3ee (patch) | |
| tree | 56d4576cc07954eb304abaf602aba44a6aa2a4f1 /drivers/infiniband/hw | |
| parent | 91c9c3eda4f3066980d13a6907ef84f3a99364bd (diff) | |
| download | linux-stable-0014bd990e69063b0fb78940b35439d7980ce3ee.tar.gz linux-stable-0014bd990e69063b0fb78940b35439d7980ce3ee.tar.bz2 linux-stable-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')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_user_pages.c | 6 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_user_pages.c | 6 |
2 files changed, 6 insertions, 6 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_user_pages.c b/drivers/infiniband/hw/ipath/ipath_user_pages.c index bab9f74c0665..cfed5399f074 100644 --- a/drivers/infiniband/hw/ipath/ipath_user_pages.c +++ b/drivers/infiniband/hw/ipath/ipath_user_pages.c @@ -53,8 +53,8 @@ static void __ipath_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 __ipath_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; @@ -165,7 +165,7 @@ int ipath_get_user_pages(unsigned long start_page, size_t num_pages, down_write(¤t->mm->mmap_sem); - ret = __get_user_pages(start_page, num_pages, p, NULL); + ret = __ipath_get_user_pages(start_page, num_pages, p, NULL); up_write(¤t->mm->mmap_sem); 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(¤t->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(¤t->mm->mmap_sem); |