A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 10:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

x86: fix lguest used_vectors breakage, -v2

Browse source 
Impact: fix lguest, clean up

32-bit lguest used used_vectors to record vectors, but that model of
allocating vectors changed and got broken, after we changed vector
allocation to a per_cpu array.

Try enable that for 64bit, and the array is used for all vectors that
are not managed by vector_irq per_cpu array.

Also kill system_vectors[], that is now a duplication of the
used_vectors bitmap.

[ merged in cpus4096 due to io_apic.c cpumask changes. ]
[ -v2, fix build failure ]

Signed-off-by: Yinghai Lu <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Yinghai Lu 2008-12-19 15:23:44 -08:00 • committed by Ingo Molnar
commit b77b881f21
8 changed files with 52 additions and 24 deletions
Download patch file Download diff file Expand all files Collapse all files

13
drivers/lguest/interrupts_and_traps.c
View file

@ -222,11 +222,16 @@ bool check_syscall_vector(struct lguest *lg)
int init_interrupts(void)
{
/* If they want some strange system call vector, reserve it now */
if (syscall_vector != SYSCALL_VECTOR
&& test_and_set_bit(syscall_vector, used_vectors)) {
printk("lg: couldn't reserve syscall %u\n", syscall_vector);
return -EBUSY;
if (syscall_vector != SYSCALL_VECTOR) {
if (test_bit(syscall_vector, used_vectors) ||
vector_used_by_percpu_irq(syscall_vector)) {
printk(KERN_ERR "lg: couldn't reserve syscall %u\n",
syscall_vector);
return -EBUSY;
}
set_bit(syscall_vector, used_vectors);
}
return 0;
}