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| author | Rusty Russell <rusty@rustcorp.com.au> | 2007-07-19 01:49:21 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-19 10:04:52 -0700 |
| commit | 5992b6dac0d23a2b51a1ccbaf8f1a2e62097b12b (patch) | |
| tree | 47b059a9f22d6d0111c669d808617aa73a709259 | |
| parent | 57deb52622f3700d154e32662f36cd5f4053f6ed (diff) | |
| download | lwn-5992b6dac0d23a2b51a1ccbaf8f1a2e62097b12b.tar.gz lwn-5992b6dac0d23a2b51a1ccbaf8f1a2e62097b12b.zip | |
lguest: export symbols for lguest as a module
lguest does some fairly lowlevel things to support a host, which
normal modules don't need:
math_state_restore:
When the guest triggers a Device Not Available fault, we need
to be able to restore the FPU
__put_task_struct:
We need to hold a reference to another task for inter-guest
I/O, and put_task_struct() is an inline function which calls
__put_task_struct.
access_process_vm:
We need to access another task for inter-guest I/O.
map_vm_area & __get_vm_area:
We need to map the switcher shim (ie. monitor) at 0xFFC01000.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | arch/i386/kernel/traps.c | 1 | ||||
| -rw-r--r-- | kernel/fork.c | 1 | ||||
| -rw-r--r-- | mm/memory.c | 1 | ||||
| -rw-r--r-- | mm/vmalloc.c | 2 |
4 files changed, 5 insertions, 0 deletions
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index d32fd4b6f78e..109ebbcde585 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -1056,6 +1056,7 @@ asmlinkage void math_state_restore(void) thread->status |= TS_USEDFPU; /* So we fnsave on switch_to() */ tsk->fpu_counter++; } +EXPORT_SYMBOL_GPL(math_state_restore); #ifndef CONFIG_MATH_EMULATION diff --git a/kernel/fork.c b/kernel/fork.c index 469838998220..e7a2d995b087 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -127,6 +127,7 @@ void __put_task_struct(struct task_struct *tsk) if (!profile_handoff_task(tsk)) free_task(tsk); } +EXPORT_SYMBOL_GPL(__put_task_struct); void __init fork_init(unsigned long mempages) { diff --git a/mm/memory.c b/mm/memory.c index 50dd3d1f4d18..8aace3db3a54 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2865,3 +2865,4 @@ int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, in return buf - old_buf; } +EXPORT_SYMBOL_GPL(access_process_vm); diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 213d5e5079ff..3cee76a8c9f0 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -164,6 +164,7 @@ int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages) flush_cache_vmap((unsigned long) area->addr, end); return err; } +EXPORT_SYMBOL_GPL(map_vm_area); static struct vm_struct *__get_vm_area_node(unsigned long size, unsigned long flags, unsigned long start, unsigned long end, @@ -242,6 +243,7 @@ struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags, { return __get_vm_area_node(size, flags, start, end, -1, GFP_KERNEL); } +EXPORT_SYMBOL_GPL(__get_vm_area); /** * get_vm_area - reserve a contingous kernel virtual area |