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nexedi
linux
Commits
dcdbd7b2
Commit
dcdbd7b2
authored
Apr 02, 2015
by
Al Viro
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net/9p: remove (now-)unused helpers
Signed-off-by:
Al Viro
<
viro@zeniv.linux.org.uk
>
parent
21c9f5cc
Changes
2
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2 changed files
with
1 addition
and
43 deletions
+1
-43
net/9p/trans_common.c
net/9p/trans_common.c
+1
-41
net/9p/trans_common.h
net/9p/trans_common.h
+0
-2
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net/9p/trans_common.c
View file @
dcdbd7b2
...
...
@@ -12,12 +12,8 @@
*
*/
#include <linux/
slab
.h>
#include <linux/
mm
.h>
#include <linux/module.h>
#include <net/9p/9p.h>
#include <net/9p/client.h>
#include <linux/scatterlist.h>
#include "trans_common.h"
/**
* p9_release_req_pages - Release pages after the transaction.
...
...
@@ -31,39 +27,3 @@ void p9_release_pages(struct page **pages, int nr_pages)
put_page
(
pages
[
i
]);
}
EXPORT_SYMBOL
(
p9_release_pages
);
/**
* p9_nr_pages - Return number of pages needed to accommodate the payload.
*/
int
p9_nr_pages
(
char
*
data
,
int
len
)
{
unsigned
long
start_page
,
end_page
;
start_page
=
(
unsigned
long
)
data
>>
PAGE_SHIFT
;
end_page
=
((
unsigned
long
)
data
+
len
+
PAGE_SIZE
-
1
)
>>
PAGE_SHIFT
;
return
end_page
-
start_page
;
}
EXPORT_SYMBOL
(
p9_nr_pages
);
/**
* payload_gup - Translates user buffer into kernel pages and
* pins them either for read/write through get_user_pages_fast().
* @req: Request to be sent to server.
* @pdata_off: data offset into the first page after translation (gup).
* @pdata_len: Total length of the IO. gup may not return requested # of pages.
* @nr_pages: number of pages to accommodate the payload
* @rw: Indicates if the pages are for read or write.
*/
int
p9_payload_gup
(
char
*
data
,
int
*
nr_pages
,
struct
page
**
pages
,
int
write
)
{
int
nr_mapped_pages
;
nr_mapped_pages
=
get_user_pages_fast
((
unsigned
long
)
data
,
*
nr_pages
,
write
,
pages
);
if
(
nr_mapped_pages
<=
0
)
return
nr_mapped_pages
;
*
nr_pages
=
nr_mapped_pages
;
return
0
;
}
EXPORT_SYMBOL
(
p9_payload_gup
);
net/9p/trans_common.h
View file @
dcdbd7b2
...
...
@@ -13,5 +13,3 @@
*/
void
p9_release_pages
(
struct
page
**
,
int
);
int
p9_payload_gup
(
char
*
,
int
*
,
struct
page
**
,
int
);
int
p9_nr_pages
(
char
*
,
int
);
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