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authorIngo Molnar <mingo@elte.hu>2011-10-04 12:43:11 +0200
committerIngo Molnar <mingo@elte.hu>2011-10-04 12:43:11 +0200
commit2c30245c65e8ebc3080b75ce65572ab8140bad0b (patch)
treeed13624ac1bb8d9d81449254cdc086fe8eb76f94 /lib/llist.c
parent1230db8e1543c0471dd165727d34647ab098cc1e (diff)
llist: Remove the platform-dependent NMI checks
Remove the nmi() checks spread around the code. in_nmi() is not available on every architecture and it's a pretty obscure and ugly check in any case. Cc: Huang Ying <ying.huang@intel.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1315461646-1379-3-git-send-email-ying.huang@intel.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'lib/llist.c')
-rw-r--r--lib/llist.c12
1 files changed, 2 insertions, 10 deletions
diff --git a/lib/llist.c b/lib/llist.c
index 3e3fa9139c41..b445f2c8596a 100644
--- a/lib/llist.c
+++ b/lib/llist.c
@@ -3,8 +3,8 @@
*
* The basic atomic operation of this list is cmpxchg on long. On
* architectures that don't have NMI-safe cmpxchg implementation, the
- * list can NOT be used in NMI handler. So code uses the list in NMI
- * handler should depend on CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG.
+ * list can NOT be used in NMI handlers. So code that uses the list in
+ * an NMI handler should depend on CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG.
*
* Copyright 2010,2011 Intel Corp.
* Author: Huang Ying <ying.huang@intel.com>
@@ -40,10 +40,6 @@ void llist_add_batch(struct llist_node *new_first, struct llist_node *new_last,
{
struct llist_node *entry, *old_entry;
-#ifndef CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG
- BUG_ON(in_nmi());
-#endif
-
entry = head->first;
do {
old_entry = entry;
@@ -71,10 +67,6 @@ struct llist_node *llist_del_first(struct llist_head *head)
{
struct llist_node *entry, *old_entry, *next;
-#ifndef CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG
- BUG_ON(in_nmi());
-#endif
-
entry = head->first;
do {
if (entry == NULL)

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