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authorRoland Dreier <rolandd@cisco.com>2007-07-17 18:37:43 -0700
committerRoland Dreier <rolandd@cisco.com>2007-07-17 18:37:43 -0700
commit1743b91710053d00e05632d63de7c457c649042f (patch)
treee812bb2de4bf1b9606ae973dca6593fc4ac9c20c /drivers
parentda9aec7b627c0369b955f82e855508c6711929ac (diff)
downloadop-kernel-dev-1743b91710053d00e05632d63de7c457c649042f.zip
op-kernel-dev-1743b91710053d00e05632d63de7c457c649042f.tar.gz
IB/ipath: Remove ipath_get_user_pages_nocopy()
It has no callers and is completely dead code. Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/infiniband/hw/ipath/ipath_kernel.h1
-rw-r--r--drivers/infiniband/hw/ipath/ipath_user_pages.c26
2 files changed, 0 insertions, 27 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h
index b6ccd04..ace63ef 100644
--- a/drivers/infiniband/hw/ipath/ipath_kernel.h
+++ b/drivers/infiniband/hw/ipath/ipath_kernel.h
@@ -819,7 +819,6 @@ static inline u64 ipath_mdio_req(int cmd, int dev, int reg, int data)
#define IPATH_MDIO_CTRL_8355_REG_10 0x1D
int ipath_get_user_pages(unsigned long, size_t, struct page **);
-int ipath_get_user_pages_nocopy(unsigned long, struct page **);
void ipath_release_user_pages(struct page **, size_t);
void ipath_release_user_pages_on_close(struct page **, size_t);
int ipath_eeprom_read(struct ipath_devdata *, u8, void *, int);
diff --git a/drivers/infiniband/hw/ipath/ipath_user_pages.c b/drivers/infiniband/hw/ipath/ipath_user_pages.c
index 27034d3..0190edc 100644
--- a/drivers/infiniband/hw/ipath/ipath_user_pages.c
+++ b/drivers/infiniband/hw/ipath/ipath_user_pages.c
@@ -171,32 +171,6 @@ int ipath_get_user_pages(unsigned long start_page, size_t num_pages,
return ret;
}
-/**
- * ipath_get_user_pages_nocopy - lock a single page for I/O and mark shared
- * @start_page: the page to lock
- * @p: the output page structure
- *
- * This is similar to ipath_get_user_pages, but it's always one page, and we
- * mark the page as locked for I/O, and shared. This is used for the user
- * process page that contains the destination address for the rcvhdrq tail
- * update, so we need to have the vma. If we don't do this, the page can be
- * taken away from us on fork, even if the child never touches it, and then
- * the user process never sees the tail register updates.
- */
-int ipath_get_user_pages_nocopy(unsigned long page, struct page **p)
-{
- struct vm_area_struct *vma;
- int ret;
-
- down_write(&current->mm->mmap_sem);
-
- ret = __get_user_pages(page, 1, p, &vma);
-
- up_write(&current->mm->mmap_sem);
-
- return ret;
-}
-
void ipath_release_user_pages(struct page **p, size_t num_pages)
{
down_write(&current->mm->mmap_sem);
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