Re: 2.6.30-rc8 Oops whilst booting

From: Linus Torvalds
Date: Mon Jun 08 2009 - 14:23:24 EST




On Mon, 8 Jun 2009, Chris Clayton wrote:
>
> I can confirm that a kernel built with Jaswinder's patch applied
> survived 200 boots without a panic.

Ok, goodie.

Can you confirm that the further cleanup (removing the pointless 'ret'
variable and the useless empty checking around 'for_each_entry') also
works for you?

Linus

---
kernel/async.c | 15 +++++----------
1 files changed, 5 insertions(+), 10 deletions(-)

diff --git a/kernel/async.c b/kernel/async.c
index 5054030..27235f5 100644
--- a/kernel/async.c
+++ b/kernel/async.c
@@ -92,23 +92,18 @@ extern int initcall_debug;
static async_cookie_t __lowest_in_progress(struct list_head *running)
{
struct async_entry *entry;
- async_cookie_t ret = next_cookie; /* begin with "infinity" value */

if (!list_empty(running)) {
entry = list_first_entry(running,
struct async_entry, list);
- ret = entry->cookie;
+ return entry->cookie;
}

- if (!list_empty(&async_pending)) {
- list_for_each_entry(entry, &async_pending, list)
- if (entry->running == running) {
- ret = entry->cookie;
- break;
- }
- }
+ list_for_each_entry(entry, &async_pending, list)
+ if (entry->running == running)
+ return entry->cookie;

- return ret;
+ return next_cookie; /* "infinity" value */
}

static async_cookie_t lowest_in_progress(struct list_head *running)
--
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