diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2019-08-23 13:16:23 +0200 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2019-09-15 21:37:11 +0200 |
| commit | 0dafcbe128d2af48919619f79332ef219b5e5514 (patch) | |
| tree | 2f95274135b2485bb13dea1dcbe6d86c31b206e7 /arch/um/kernel/skas | |
| parent | 276d75c4aff3ade04f0f78769dd895a78f03edd9 (diff) | |
um: Implement TRACE_IRQFLAGS_SUPPORT
UML enables TRACE_IRQFLAGS_SUPPORT but doesn't actually implement
it. It seems to have been added for lockdep support, but that can't
actually really work well without IRQ flags tracing, as is also
very noisily reported when enabling CONFIG_DEBUG_LOCKDEP.
Implement it now.
Fixes: 711553efa5b8 ("[PATCH] uml: declare in Kconfig our partial LOCKDEP support")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/um/kernel/skas')
| -rw-r--r-- | arch/um/kernel/skas/mmu.c | 4 | ||||
| -rw-r--r-- | arch/um/kernel/skas/process.c | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c index 29e7f5f9f188..ace71f805700 100644 --- a/arch/um/kernel/skas/mmu.c +++ b/arch/um/kernel/skas/mmu.c @@ -63,12 +63,12 @@ int init_new_context(struct task_struct *task, struct mm_struct *mm) if (current->mm != NULL && current->mm != &init_mm) from_mm = ¤t->mm->context; - block_signals(); + block_signals_trace(); if (from_mm) to_mm->id.u.pid = copy_context_skas0(stack, from_mm->id.u.pid); else to_mm->id.u.pid = start_userspace(stack); - unblock_signals(); + unblock_signals_trace(); if (to_mm->id.u.pid < 0) { ret = to_mm->id.u.pid; diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c index d4dbf08722d6..404914627dd6 100644 --- a/arch/um/kernel/skas/process.c +++ b/arch/um/kernel/skas/process.c @@ -19,7 +19,7 @@ static int __init start_kernel_proc(void *unused) { int pid; - block_signals(); + block_signals_trace(); pid = os_getpid(); cpu_tasks[0].pid = pid; |