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nexedi
linux
Commits
dd1adaa1
Commit
dd1adaa1
authored
Aug 18, 2002
by
David S. Miller
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Plain Diff
arch/sparc64/mm/modutil.c: Fixup vmalloc interface changes.
parent
872d64fa
Changes
1
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Showing
1 changed file
with
26 additions
and
15 deletions
+26
-15
arch/sparc64/mm/modutil.c
arch/sparc64/mm/modutil.c
+26
-15
No files found.
arch/sparc64/mm/modutil.c
View file @
dd1adaa1
...
...
@@ -5,10 +5,9 @@
* Based upon code written by Linus Torvalds and others.
*/
#warning "major untested changes to this file --hch (2002/08/05)"
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/mm.h>
#include <asm/uaccess.h>
#include <asm/system.h>
...
...
@@ -30,13 +29,13 @@ void module_unmap (void * addr)
for
(
p
=
&
modvmlist
;
(
tmp
=
*
p
)
;
p
=
&
tmp
->
next
)
{
if
(
tmp
->
addr
==
addr
)
{
*
p
=
tmp
->
next
;
goto
found
;
}
}
printk
(
"Trying to unmap nonexistent module vm area (%p)
\n
"
,
addr
);
return
;
found:
unmap_vm_area
(
tmp
);
for
(
i
=
0
;
i
<
tmp
->
nr_pages
;
i
++
)
{
...
...
@@ -53,14 +52,13 @@ void module_unmap (void * addr)
void
*
module_map
(
unsigned
long
size
)
{
struct
vm_struct
**
p
,
*
tmp
,
*
area
;
struct
vm_struct
*
area
;
struct
page
**
pages
;
void
*
addr
;
unsigned
int
nr_pages
,
array_size
,
i
;
size
=
PAGE_ALIGN
(
size
);
if
(
!
size
||
size
>
MODULES_LEN
)
return
NULL
;
if
(
!
size
||
size
>
MODULES_LEN
)
return
NULL
;
addr
=
(
void
*
)
MODULES_VADDR
;
for
(
p
=
&
modvmlist
;
(
tmp
=
*
p
)
;
p
=
&
tmp
->
next
)
{
...
...
@@ -68,10 +66,12 @@ void * module_map (unsigned long size)
break
;
addr
=
(
void
*
)
(
tmp
->
size
+
(
unsigned
long
)
tmp
->
addr
);
}
if
((
unsigned
long
)
addr
+
size
>=
MODULES_END
)
return
NULL
;
if
((
unsigned
long
)
addr
+
size
>=
MODULES_END
)
return
NULL
;
area
=
(
struct
vm_struct
*
)
kmalloc
(
sizeof
(
*
area
),
GFP_KERNEL
);
if
(
!
area
)
return
NULL
;
if
(
!
area
)
return
NULL
;
area
->
size
=
size
+
PAGE_SIZE
;
area
->
addr
=
addr
;
area
->
next
=
*
p
;
...
...
@@ -80,27 +80,38 @@ void * module_map (unsigned long size)
area
->
phys_addr
=
0
;
*
p
=
area
;
nr_pages
=
(
size
+
PAGE_SIZE
)
>>
PAGE_SHIFT
;
nr_pages
=
size
>>
PAGE_SHIFT
;
array_size
=
(
nr_pages
*
sizeof
(
struct
page
*
));
area
->
nr_pages
=
nr_pages
;
area
->
pages
=
pages
=
kmalloc
(
array_size
,
(
gfp_mask
&
~
__GFP_HIGHMEM
)
);
area
->
pages
=
pages
=
kmalloc
(
array_size
,
GFP_KERNEL
);
if
(
!
area
->
pages
)
return
NULL
;
goto
fail
;
memset
(
area
->
pages
,
0
,
array_size
);
for
(
i
=
0
;
i
<
area
->
nr_pages
;
i
++
)
{
area
->
pages
[
i
]
=
alloc_page
(
gfp_mask
);
area
->
pages
[
i
]
=
alloc_page
(
GFP_KERNEL
);
if
(
unlikely
(
!
area
->
pages
[
i
]))
goto
fail
;
}
if
(
map_vm_area
(
area
,
prot
,
&
pages
))
if
(
map_vm_area
(
area
,
PAGE_KERNEL
,
&
pages
))
{
unmap_vm_area
(
area
);
goto
fail
;
}
return
area
->
addr
;
fail:
vfree
(
area
->
addr
);
if
(
area
->
pages
)
{
for
(
i
=
0
;
i
<
area
->
nr_pages
;
i
++
)
{
if
(
area
->
pages
[
i
])
__free_page
(
area
->
pages
[
i
]);
}
kfree
(
area
->
pages
);
}
kfree
(
area
);
return
NULL
;
}
}
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