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authorAlex Elder <elder@inktank.com>2013-02-06 13:11:38 -0600
committerAlex Elder <elder@inktank.com>2013-02-19 19:14:04 -0600
commitb324814e8436772cb3367b14149ba003a9954525 (patch)
tree37ab98802744072a3e348623f1c880ae11546203
parent9e0eb85d5861d512759caf1301670b36d4c221ed (diff)
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libceph: use void pointers in page vector functions
The functions used for working with ceph page vectors are defined with char pointers, but they're really intended to operate on untyped data. Change the types of these function parameters to (void *) to reflect this. (Note that the functions now assume void pointer arithmetic works like arithmetic on char pointers.) Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
-rw-r--r--include/linux/ceph/libceph.h10
-rw-r--r--net/ceph/pagevec.c10
2 files changed, 10 insertions, 10 deletions
diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h
index c44275ab375..2250f8bb249 100644
--- a/include/linux/ceph/libceph.h
+++ b/include/linux/ceph/libceph.h
@@ -222,7 +222,7 @@ extern int ceph_open_session(struct ceph_client *client);
/* pagevec.c */
extern void ceph_release_page_vector(struct page **pages, int num_pages);
-extern struct page **ceph_get_direct_page_vector(const char __user *data,
+extern struct page **ceph_get_direct_page_vector(const void __user *data,
int num_pages,
bool write_page);
extern void ceph_put_page_vector(struct page **pages, int num_pages,
@@ -230,15 +230,15 @@ extern void ceph_put_page_vector(struct page **pages, int num_pages,
extern void ceph_release_page_vector(struct page **pages, int num_pages);
extern struct page **ceph_alloc_page_vector(int num_pages, gfp_t flags);
extern int ceph_copy_user_to_page_vector(struct page **pages,
- const char __user *data,
+ const void __user *data,
loff_t off, size_t len);
extern int ceph_copy_to_page_vector(struct page **pages,
- const char *data,
+ const void *data,
loff_t off, size_t len);
extern int ceph_copy_from_page_vector(struct page **pages,
- char *data,
+ void *data,
loff_t off, size_t len);
-extern int ceph_copy_page_vector_to_user(struct page **pages, char __user *data,
+extern int ceph_copy_page_vector_to_user(struct page **pages, void __user *data,
loff_t off, size_t len);
extern void ceph_zero_page_vector_range(int off, int len, struct page **pages);
diff --git a/net/ceph/pagevec.c b/net/ceph/pagevec.c
index cd9c21df87d..5b20be979c1 100644
--- a/net/ceph/pagevec.c
+++ b/net/ceph/pagevec.c
@@ -12,7 +12,7 @@
/*
* build a vector of user pages
*/
-struct page **ceph_get_direct_page_vector(const char __user *data,
+struct page **ceph_get_direct_page_vector(const void __user *data,
int num_pages, bool write_page)
{
struct page **pages;
@@ -93,7 +93,7 @@ EXPORT_SYMBOL(ceph_alloc_page_vector);
* copy user data into a page vector
*/
int ceph_copy_user_to_page_vector(struct page **pages,
- const char __user *data,
+ const void __user *data,
loff_t off, size_t len)
{
int i = 0;
@@ -119,7 +119,7 @@ int ceph_copy_user_to_page_vector(struct page **pages,
EXPORT_SYMBOL(ceph_copy_user_to_page_vector);
int ceph_copy_to_page_vector(struct page **pages,
- const char *data,
+ const void *data,
loff_t off, size_t len)
{
int i = 0;
@@ -143,7 +143,7 @@ int ceph_copy_to_page_vector(struct page **pages,
EXPORT_SYMBOL(ceph_copy_to_page_vector);
int ceph_copy_from_page_vector(struct page **pages,
- char *data,
+ void *data,
loff_t off, size_t len)
{
int i = 0;
@@ -170,7 +170,7 @@ EXPORT_SYMBOL(ceph_copy_from_page_vector);
* copy user data from a page vector into a user pointer
*/
int ceph_copy_page_vector_to_user(struct page **pages,
- char __user *data,
+ void __user *data,
loff_t off, size_t len)
{
int i = 0;