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体验新版 GitCode,发现更多精彩内容 >>
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96b7e579
编写于
6月 10, 2012
作者:
A
Al Viro
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
switch do_dentry_open() to returning int
Signed-off-by:
N
Al Viro
<
viro@zeniv.linux.org.uk
>
上级
e45198a6
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
20 addition
and
20 deletion
+20
-20
fs/open.c
fs/open.c
+20
-20
未找到文件。
fs/open.c
浏览文件 @
96b7e579
...
...
@@ -667,10 +667,10 @@ int open_check_o_direct(struct file *f)
return
0
;
}
static
struct
file
*
do_dentry_open
(
struct
dentry
*
dentry
,
struct
vfsmount
*
mnt
,
struct
file
*
f
,
int
(
*
open
)(
struct
inode
*
,
struct
file
*
),
const
struct
cred
*
cred
)
static
int
do_dentry_open
(
struct
dentry
*
dentry
,
struct
vfsmount
*
mnt
,
struct
file
*
f
,
int
(
*
open
)(
struct
inode
*
,
struct
file
*
),
const
struct
cred
*
cred
)
{
static
const
struct
file_operations
empty_fops
=
{};
struct
inode
*
inode
;
...
...
@@ -699,7 +699,7 @@ static struct file *do_dentry_open(struct dentry *dentry, struct vfsmount *mnt,
if
(
unlikely
(
f
->
f_mode
&
FMODE_PATH
))
{
f
->
f_op
=
&
empty_fops
;
return
f
;
return
0
;
}
f
->
f_op
=
fops_get
(
inode
->
i_fop
);
...
...
@@ -726,7 +726,7 @@ static struct file *do_dentry_open(struct dentry *dentry, struct vfsmount *mnt,
file_ra_state_init
(
&
f
->
f_ra
,
f
->
f_mapping
->
host
->
i_mapping
);
return
f
;
return
0
;
cleanup_all:
fops_put
(
f
->
f_op
);
...
...
@@ -749,7 +749,7 @@ static struct file *do_dentry_open(struct dentry *dentry, struct vfsmount *mnt,
cleanup_file:
dput
(
dentry
);
mntput
(
mnt
);
return
ERR_PTR
(
error
)
;
return
error
;
}
static
struct
file
*
__dentry_open
(
struct
dentry
*
dentry
,
struct
vfsmount
*
mnt
,
...
...
@@ -757,17 +757,19 @@ static struct file *__dentry_open(struct dentry *dentry, struct vfsmount *mnt,
int
(
*
open
)(
struct
inode
*
,
struct
file
*
),
const
struct
cred
*
cred
)
{
struct
file
*
res
=
do_dentry_open
(
dentry
,
mnt
,
f
,
open
,
cred
);
if
(
!
IS_ERR
(
res
))
{
int
error
=
open_check_o_direct
(
f
);
int
error
;
error
=
do_dentry_open
(
dentry
,
mnt
,
f
,
open
,
cred
);
if
(
!
error
)
{
error
=
open_check_o_direct
(
f
);
if
(
error
)
{
fput
(
res
);
res
=
ERR_PTR
(
error
);
fput
(
f
);
f
=
ERR_PTR
(
error
);
}
}
else
{
}
else
{
put_filp
(
f
);
f
=
ERR_PTR
(
error
);
}
return
res
;
return
f
;
}
/**
...
...
@@ -785,19 +787,17 @@ int finish_open(struct file *file, struct dentry *dentry,
int
(
*
open
)(
struct
inode
*
,
struct
file
*
),
int
*
opened
)
{
struct
file
*
res
;
int
error
;
BUG_ON
(
*
opened
&
FILE_OPENED
);
/* once it's opened, it's opened */
mntget
(
file
->
f_path
.
mnt
);
dget
(
dentry
);
res
=
do_dentry_open
(
dentry
,
file
->
f_path
.
mnt
,
file
,
open
,
current_cred
());
if
(
!
IS_ERR
(
res
))
{
error
=
do_dentry_open
(
dentry
,
file
->
f_path
.
mnt
,
file
,
open
,
current_cred
());
if
(
!
error
)
*
opened
|=
FILE_OPENED
;
return
0
;
}
return
PTR_ERR
(
res
)
;
return
error
;
}
EXPORT_SYMBOL
(
finish_open
);
...
...
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