Corey Minyard wrote:
Nick Piggin wrote:
Is get_with_check actually going to be useful for anything? It
seems like it promotes complex and potentially unsafe schemes.
It is certainly more complex to use this, and I'm guessing that's why
Greg rejected it. Certainly a valid problem.
eg. In your
Nick Piggin wrote:
Corey Minyard wrote:
Arjan van de Ven wrote:
Just doing an atomic operation is not faster than doing a lock, an
atomic operation, then an unlock? Am I missing something?
if the lock and the atomic are on the same cacheline they're the same
cost on most modern cpus...
Corey Minyard wrote:
Arjan van de Ven wrote:
Just doing an atomic operation is not faster than doing a lock, an
atomic operation, then an unlock? Am I missing something?
if the lock and the atomic are on the same cacheline they're the same
cost on most modern cpus...
Ah, I see. Not
Arjan van de Ven wrote:
Just doing an atomic operation is not faster than doing a lock, an
atomic operation, then an unlock? Am I missing something?
if the lock and the atomic are on the same cacheline they're the same
cost on most modern cpus...
Ah, I see. Not likely to ever be the
> Just doing an atomic operation is not faster than doing a lock, an
> atomic operation, then an unlock? Am I missing something?
if the lock and the atomic are on the same cacheline they're the same
cost on most modern cpus...
-
To unsubscribe from this list: send the line "unsubscribe
Arjan van de Ven wrote:
On Tue, 2005-03-01 at 12:15 -0800, Greg KH wrote:
On Sat, Feb 26, 2005 at 04:23:04PM -0600, Corey Minyard wrote:
Add a routine to kref that allows the kref_put() routine to be
unserialized even when the get routine attempts to kref_get()
an object without first
On Tue, Mar 01, 2005 at 10:02:43PM +0100, Arjan van de Ven wrote:
> On Tue, 2005-03-01 at 12:15 -0800, Greg KH wrote:
> > On Sat, Feb 26, 2005 at 04:23:04PM -0600, Corey Minyard wrote:
> > > Add a routine to kref that allows the kref_put() routine to be
> > > unserialized even when the get routine
On Tue, 2005-03-01 at 12:15 -0800, Greg KH wrote:
> On Sat, Feb 26, 2005 at 04:23:04PM -0600, Corey Minyard wrote:
> > Add a routine to kref that allows the kref_put() routine to be
> > unserialized even when the get routine attempts to kref_get()
> > an object without first holding a valid
On Sat, Feb 26, 2005 at 04:23:04PM -0600, Corey Minyard wrote:
> Add a routine to kref that allows the kref_put() routine to be
> unserialized even when the get routine attempts to kref_get()
> an object without first holding a valid reference to it. This is
> useful in situations where this
On Sat, Feb 26, 2005 at 04:23:04PM -0600, Corey Minyard wrote:
Add a routine to kref that allows the kref_put() routine to be
unserialized even when the get routine attempts to kref_get()
an object without first holding a valid reference to it. This is
useful in situations where this happens
On Tue, 2005-03-01 at 12:15 -0800, Greg KH wrote:
On Sat, Feb 26, 2005 at 04:23:04PM -0600, Corey Minyard wrote:
Add a routine to kref that allows the kref_put() routine to be
unserialized even when the get routine attempts to kref_get()
an object without first holding a valid reference to
On Tue, Mar 01, 2005 at 10:02:43PM +0100, Arjan van de Ven wrote:
On Tue, 2005-03-01 at 12:15 -0800, Greg KH wrote:
On Sat, Feb 26, 2005 at 04:23:04PM -0600, Corey Minyard wrote:
Add a routine to kref that allows the kref_put() routine to be
unserialized even when the get routine attempts
Arjan van de Ven wrote:
On Tue, 2005-03-01 at 12:15 -0800, Greg KH wrote:
On Sat, Feb 26, 2005 at 04:23:04PM -0600, Corey Minyard wrote:
Add a routine to kref that allows the kref_put() routine to be
unserialized even when the get routine attempts to kref_get()
an object without first
Just doing an atomic operation is not faster than doing a lock, an
atomic operation, then an unlock? Am I missing something?
if the lock and the atomic are on the same cacheline they're the same
cost on most modern cpus...
-
To unsubscribe from this list: send the line unsubscribe
Arjan van de Ven wrote:
Just doing an atomic operation is not faster than doing a lock, an
atomic operation, then an unlock? Am I missing something?
if the lock and the atomic are on the same cacheline they're the same
cost on most modern cpus...
Ah, I see. Not likely to ever be the
Corey Minyard wrote:
Arjan van de Ven wrote:
Just doing an atomic operation is not faster than doing a lock, an
atomic operation, then an unlock? Am I missing something?
if the lock and the atomic are on the same cacheline they're the same
cost on most modern cpus...
Ah, I see. Not
Nick Piggin wrote:
Corey Minyard wrote:
Arjan van de Ven wrote:
Just doing an atomic operation is not faster than doing a lock, an
atomic operation, then an unlock? Am I missing something?
if the lock and the atomic are on the same cacheline they're the same
cost on most modern cpus...
Corey Minyard wrote:
Nick Piggin wrote:
Is get_with_check actually going to be useful for anything? It
seems like it promotes complex and potentially unsafe schemes.
It is certainly more complex to use this, and I'm guessing that's why
Greg rejected it. Certainly a valid problem.
eg. In your
Sergey Vlasov wrote:
On Sat, 26 Feb 2005 09:55:41 -0600 Corey Minyard wrote:
Greg,
This is the patch for krefs that we talked about. If you don't like it
but like the docs, feel free just to take the documentation and cut out
the stuff at the end about the new operation.
See below for
On Sat, 26 Feb 2005 09:55:41 -0600 Corey Minyard wrote:
> Greg,
>
> This is the patch for krefs that we talked about. If you don't like it
> but like the docs, feel free just to take the documentation and cut out
> the stuff at the end about the new operation.
See below for comments to the
Greg,
This is the patch for krefs that we talked about. If you don't like it
but like the docs, feel free just to take the documentation and cut out
the stuff at the end about the new operation.
Thanks,
-Corey
Add a routine to kref that allows the kref_put() routine to be
unserialized even
Greg,
This is the patch for krefs that we talked about. If you don't like it
but like the docs, feel free just to take the documentation and cut out
the stuff at the end about the new operation.
Thanks,
-Corey
Add a routine to kref that allows the kref_put() routine to be
unserialized even
On Sat, 26 Feb 2005 09:55:41 -0600 Corey Minyard wrote:
Greg,
This is the patch for krefs that we talked about. If you don't like it
but like the docs, feel free just to take the documentation and cut out
the stuff at the end about the new operation.
See below for comments to the patch.
Sergey Vlasov wrote:
On Sat, 26 Feb 2005 09:55:41 -0600 Corey Minyard wrote:
Greg,
This is the patch for krefs that we talked about. If you don't like it
but like the docs, feel free just to take the documentation and cut out
the stuff at the end about the new operation.
See below for
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