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| author | Ingo Molnar <mingo@kernel.org> | 2016-01-29 09:41:18 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-01-29 09:41:18 +0100 |
| commit | 76b36fa896a2db64582690e085f36adc76604134 (patch) | |
| tree | 78007f123ead6f96cdee6ba98ac3c289c706cc39 /lib/list_debug.c | |
| parent | 14365449b6ce34cf6a3040ff8ebbb39d89d67159 (diff) | |
| parent | 92e963f50fc74041b5e9e744c330dca48e04f08d (diff) | |
Merge tag 'v4.5-rc1' into x86/asm, to refresh the branch before merging new changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'lib/list_debug.c')
| -rw-r--r-- | lib/list_debug.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/list_debug.c b/lib/list_debug.c index 3859bf63561c..3345a089ef7b 100644 --- a/lib/list_debug.c +++ b/lib/list_debug.c @@ -12,6 +12,13 @@ #include <linux/kernel.h> #include <linux/rculist.h> +static struct list_head force_poison; +void list_force_poison(struct list_head *entry) +{ + entry->next = &force_poison; + entry->prev = &force_poison; +} + /* * Insert a new entry between two known consecutive entries. * @@ -23,6 +30,8 @@ void __list_add(struct list_head *new, struct list_head *prev, struct list_head *next) { + WARN(new->next == &force_poison || new->prev == &force_poison, + "list_add attempted on force-poisoned entry\n"); WARN(next->prev != prev, "list_add corruption. next->prev should be " "prev (%p), but was %p. (next=%p).\n", |