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[S390] fix build breakage with CONFIG_AIO=n 

next-20090925 randconfig build breaks on s390x, with CONFIG_AIO=n.

arch/s390/mm/pgtable.c: In function 's390_enable_sie':
arch/s390/mm/pgtable.c:282: error: 'struct mm_struct' has no member named 'ioctx_list'
arch/s390/mm/pgtable.c:298: error: 'struct mm_struct' has no member named 'ioctx_list'
make[1]: *** [arch/s390/mm/pgtable.o] Error 1

Reported-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Martin Schwidefsky 2009-10-06 10:33:55 +02:00 committed by Martin Schwidefsky
parent 0eca52a927
commit 52a21f2cee
1 changed files with 8 additions and 2 deletions
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10
arch/s390/mm/pgtable.c
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@ -279,7 +279,10 @@ int s390_enable_sie(void)
/* lets check if we are allowed to replace the mm */
task_lock(tsk);
if (!tsk->mm || atomic_read(&tsk->mm->mm_users) > 1 ||
tsk->mm != tsk->active_mm || !hlist_empty(&tsk->mm->ioctx_list)) {
#ifdef CONFIG_AIO
!hlist_empty(&tsk->mm->ioctx_list) ||
#endif
tsk->mm != tsk->active_mm) {
task_unlock(tsk);
return -EINVAL;
}
@ -295,7 +298,10 @@ int s390_enable_sie(void)
/* Now lets check again if something happened */
task_lock(tsk);
if (!tsk->mm || atomic_read(&tsk->mm->mm_users) > 1 ||
tsk->mm != tsk->active_mm || !hlist_empty(&tsk->mm->ioctx_list)) {
#ifdef CONFIG_AIO
!hlist_empty(&tsk->mm->ioctx_list) ||
#endif
tsk->mm != tsk->active_mm) {
mmput(mm);
task_unlock(tsk);
return -EINVAL;