On Apr 6 2007 07:05, Hugh Dickins wrote:
>On Fri, 6 Apr 2007, Nick Piggin wrote:
>>
>> I like |= for adding flags, it seems less ambiguous. But I guess that's
>> a matter of opinion. Hugh seems to like +=,
>
>Do I? You probably have a shaming example in mind (PAGE_MAPPING_ANON?
>that's a hybrid
On Thu, 2007-04-05 at 19:49 +0200, Eric Dumazet wrote:
> Hi all
>
> I'm pleased to present this patch which improves linux futexes performance
> and
> scalability, merely avoiding taking mmap_sem rwlock.
>
> Ulrich agreed with the API and said glibc work could start as soon
> as he gets a Fedor
Eric Dumazet wrote:
Nick Piggin a écrit :
Did the whole thing just turn out neater when you passed the rwsem?
We always know to use current->mm->mmap_sem, so it doesn't seem like
a boolean flag would hurt?
That's a good question
current->mm->mmap_sem being calculated once is a win in itsel
On Fri, 6 Apr 2007, Nick Piggin wrote:
>
> I like |= for adding flags, it seems less ambiguous. But I guess that's
> a matter of opinion. Hugh seems to like +=,
Do I? You probably have a shaming example in mind (PAGE_MAPPING_ANON?
that's a hybrid case where using + and - helped minimize the cast
Nick Piggin a écrit :
Hi Eric,
Thanks for doing this... It's looking good, I just have some minor
comments:
Hi Nick, thanks for reviewing.
Eric Dumazet wrote:
*/
-int get_futex_key(void __user *uaddr, union futex_key *key)
+int get_futex_key(void __user *uaddr, union futex_key *key,
+
Hi Eric,
Thanks for doing this... It's looking good, I just have some minor
comments:
Eric Dumazet wrote:
Signed-off-by: Eric Dumazet <[EMAIL PROTECTED]>
--- linux-2.6.21-rc5-mm4/kernel/futex.c
+++ linux-2.6.21-rc5-mm4-ed/kernel/futex.c
@@ -16,6 +16,9 @@
* Copyright (C) 2006 Red Hat, Inc
On 4/5/07, Eric Dumazet <[EMAIL PROTECTED]> wrote:
Signed-off-by: Eric Dumazet <[EMAIL PROTECTED]>
---
include/linux/futex.h | 45 +-
kernel/futex.c| 294 +---
2 files changed, 230 insertions(+), 109 deletions(-)
I cannot vouch for the whole
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