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a108d5f3
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a108d5f3
编写于
4月 23, 2012
作者:
D
David S. Miller
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
net: Use bool and remove inline in skb_splice_bits() code.
Signed-off-by:
N
David S. Miller
<
davem@davemloft.net
>
上级
41c73a0d
变更
1
显示空白变更内容
内联
并排
Showing
1 changed file
with
29 addition
and
29 deletion
+29
-29
net/core/skbuff.c
net/core/skbuff.c
+29
-29
未找到文件。
net/core/skbuff.c
浏览文件 @
a108d5f3
...
...
@@ -1547,7 +1547,7 @@ static void sock_spd_release(struct splice_pipe_desc *spd, unsigned int i)
put_page
(
spd
->
pages
[
i
]);
}
static
inline
struct
page
*
linear_to_page
(
struct
page
*
page
,
unsigned
int
*
len
,
static
struct
page
*
linear_to_page
(
struct
page
*
page
,
unsigned
int
*
len
,
unsigned
int
*
offset
,
struct
sk_buff
*
skb
,
struct
sock
*
sk
)
{
...
...
@@ -1598,23 +1598,23 @@ static bool spd_can_coalesce(const struct splice_pipe_desc *spd,
/*
* Fill page/offset/length into spd, if it can hold more pages.
*/
static
inline
int
spd_fill_page
(
struct
splice_pipe_desc
*
spd
,
static
bool
spd_fill_page
(
struct
splice_pipe_desc
*
spd
,
struct
pipe_inode_info
*
pipe
,
struct
page
*
page
,
unsigned
int
*
len
,
unsigned
int
offset
,
struct
sk_buff
*
skb
,
int
linear
,
struct
sock
*
sk
)
{
if
(
unlikely
(
spd
->
nr_pages
==
MAX_SKB_FRAGS
))
return
1
;
return
true
;
if
(
linear
)
{
page
=
linear_to_page
(
page
,
len
,
&
offset
,
skb
,
sk
);
if
(
!
page
)
return
1
;
return
true
;
}
if
(
spd_can_coalesce
(
spd
,
page
,
offset
))
{
spd
->
partial
[
spd
->
nr_pages
-
1
].
len
+=
*
len
;
return
0
;
return
false
;
}
get_page
(
page
);
spd
->
pages
[
spd
->
nr_pages
]
=
page
;
...
...
@@ -1622,7 +1622,7 @@ static inline int spd_fill_page(struct splice_pipe_desc *spd,
spd
->
partial
[
spd
->
nr_pages
].
offset
=
offset
;
spd
->
nr_pages
++
;
return
0
;
return
false
;
}
static
inline
void
__segment_seek
(
struct
page
**
page
,
unsigned
int
*
poff
,
...
...
@@ -1639,7 +1639,7 @@ static inline void __segment_seek(struct page **page, unsigned int *poff,
*
plen
-=
off
;
}
static
inline
int
__splice_segment
(
struct
page
*
page
,
unsigned
int
poff
,
static
bool
__splice_segment
(
struct
page
*
page
,
unsigned
int
poff
,
unsigned
int
plen
,
unsigned
int
*
off
,
unsigned
int
*
len
,
struct
sk_buff
*
skb
,
struct
splice_pipe_desc
*
spd
,
int
linear
,
...
...
@@ -1647,12 +1647,12 @@ static inline int __splice_segment(struct page *page, unsigned int poff,
struct
pipe_inode_info
*
pipe
)
{
if
(
!*
len
)
return
1
;
return
true
;
/* skip this segment if already processed */
if
(
*
off
>=
plen
)
{
*
off
-=
plen
;
return
0
;
return
false
;
}
/* ignore any bits we already processed */
...
...
@@ -1668,21 +1668,21 @@ static inline int __splice_segment(struct page *page, unsigned int poff,
flen
=
min_t
(
unsigned
int
,
flen
,
PAGE_SIZE
-
poff
);
if
(
spd_fill_page
(
spd
,
pipe
,
page
,
&
flen
,
poff
,
skb
,
linear
,
sk
))
return
1
;
return
true
;
__segment_seek
(
&
page
,
&
poff
,
&
plen
,
flen
);
*
len
-=
flen
;
}
while
(
*
len
&&
plen
);
return
0
;
return
false
;
}
/*
* Map linear and fragment data from the skb to spd. It reports
failur
e if the
* Map linear and fragment data from the skb to spd. It reports
tru
e if the
* pipe is full or if we already spliced the requested length.
*/
static
int
__skb_splice_bits
(
struct
sk_buff
*
skb
,
struct
pipe_inode_info
*
pipe
,
static
bool
__skb_splice_bits
(
struct
sk_buff
*
skb
,
struct
pipe_inode_info
*
pipe
,
unsigned
int
*
offset
,
unsigned
int
*
len
,
struct
splice_pipe_desc
*
spd
,
struct
sock
*
sk
)
{
...
...
@@ -1695,7 +1695,7 @@ static int __skb_splice_bits(struct sk_buff *skb, struct pipe_inode_info *pipe,
(
unsigned
long
)
skb
->
data
&
(
PAGE_SIZE
-
1
),
skb_headlen
(
skb
),
offset
,
len
,
skb
,
spd
,
1
,
sk
,
pipe
))
return
1
;
return
true
;
/*
* then map the fragments
...
...
@@ -1706,10 +1706,10 @@ static int __skb_splice_bits(struct sk_buff *skb, struct pipe_inode_info *pipe,
if
(
__splice_segment
(
skb_frag_page
(
f
),
f
->
page_offset
,
skb_frag_size
(
f
),
offset
,
len
,
skb
,
spd
,
0
,
sk
,
pipe
))
return
1
;
return
true
;
}
return
0
;
return
false
;
}
/*
...
...
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