From: Rao Shoaib
TCP sockets allow SIGURG to be sent to the process holding the other
end of the socket. Extend Unix sockets to have the same ability
but only if the data length is zero.
The API is the same in that the sender uses sendmsg() with MSG_OOB to
raise SIGURG. Unix sockets behave in
From: Rao Shoaib
Resending because of typo in the email addresses.
Currently rxe driver has a hard coded value for inline data size, where as mlx5
driver calculates the size of inline data and number of SGE's to use based on
the values in the qp request. Some applications depend on
From: Rao Shoaib
rxe driver has a hard coded value for the size of inline data, where as
mlx5 driver calculates number of SGE's and inline data size based on the
values in the qp request. This patch modifies rxe driver to do the same
so that applications can work seamlessly across dr
On 04/04/2018 12:16 AM, Rao Shoaib wrote:
On 04/03/2018 07:23 PM, Matthew Wilcox wrote:
On Tue, Apr 03, 2018 at 05:55:55PM -0700, Rao Shoaib wrote:
On 04/03/2018 01:58 PM, Matthew Wilcox wrote:
I think you might be better off with an IDR. The IDR can always
contain one entry, so there
On 04/02/2018 10:20 AM, Christopher Lameter wrote:
On Sun, 1 Apr 2018, rao.sho...@oracle.com wrote:
kfree_rcu() should use the new kfree_bulk() interface for freeing
rcu structures as it is more efficient.
It would be even better if this approach could also use
kmem_cache_free_bulk(
On 04/03/2018 07:23 PM, Matthew Wilcox wrote:
On Tue, Apr 03, 2018 at 05:55:55PM -0700, Rao Shoaib wrote:
On 04/03/2018 01:58 PM, Matthew Wilcox wrote:
I think you might be better off with an IDR. The IDR can always
contain one entry, so there's no need for this 'rbf_lis
On 04/03/2018 01:58 PM, Matthew Wilcox wrote:
On Tue, Apr 03, 2018 at 10:22:53AM -0700, rao.sho...@oracle.com wrote:
+++ b/mm/slab.h
@@ -80,6 +80,29 @@ extern const struct kmalloc_info_struct {
unsigned long size;
} kmalloc_info[];
+#define RCU_MAX_ACCUMULATE_SIZE 25
+
+struct rcu
From: Rao Shoaib
This patch moves kfree_call_rcu() out of rcu related code to
mm/slab_common and updates kfree_rcu() to use new bulk memory free
functions as they are more efficient.
This is a resubmission of the previous patch.
Changes since last submission
Surrounded code with
From: Rao Shoaib
kfree_rcu() should use the new kfree_bulk() interface for freeing
rcu structures as it is more efficient.
Signed-off-by: Rao Shoaib
---
include/linux/mm.h | 5 ++
include/linux/rcupdate.h | 4 +-
include/linux/rcutiny.h | 8 ++-
kernel/sysctl.c | 40
From: Rao Shoaib
kfree_call_rcu does not belong in linux/rcupdate.h and should be moved to
slab_common.c
Signed-off-by: Rao Shoaib
---
include/linux/rcupdate.h | 43 +++
include/linux/rcutree.h | 2 --
include/linux/slab.h | 42
From: Rao Shoaib
kfree_call_rcu does not belong in linux/rcupdate.h and should be moved to
slab_common.c
Signed-off-by: Rao Shoaib
---
include/linux/rcupdate.h | 43 +++
include/linux/rcutree.h | 2 --
include/linux/slab.h | 42
From: Rao Shoaib
kfree_rcu() should use the new kfree_bulk() interface for freeing
rcu structures as it is more efficient.
Signed-off-by: Rao Shoaib
---
include/linux/mm.h | 5 ++
include/linux/rcutiny.h | 8 ++-
kernel/sysctl.c | 40
mm/slab.h
From: Rao Shoaib
This patch moves kfree_call_rcu() out of rcu related code to
mm/slab_common and updates kfree_rcu() to use new bulk memory free
functions as they are more efficient.
This is a resubmission of the previous patch.
Changes:
1) checkpatch.pl has been fixed, so kfree_rcu macro is
From: Rao Shoaib
Example:
CHECK: Macro argument reuse 'ptr' - possible side-effects?
+#define kfree_rcu(ptr, rcu_name) \
+ do {\
+ unsigned long __off = offsetof(typeof(*(ptr)), rcu_name); \
+ struct rcu_head *__rp
Folks,
Is anyone working on resolving the check patch issue as I am waiting to
resubmit my patch. Will it be fine if I submitted the patch with the
original macro as the check is in-correct.
I do not speak perl but I can do the process work. If folks think Joe's
fix is fine I can submit it a
On 01/04/2018 04:07 PM, Matthew Wilcox wrote:
On Thu, Jan 04, 2018 at 03:47:32PM -0800, Paul E. McKenney wrote:
I was under the impression that typeof did not actually evaluate its
argument, but rather only returned its type. And there are a few macros
with this pattern in mainline.
Or am I
On 01/04/2018 01:46 PM, Matthew Wilcox wrote:
On Thu, Jan 04, 2018 at 01:27:49PM -0800, Rao Shoaib wrote:
On 01/04/2018 12:35 PM, Rao Shoaib wrote:
As far as your previous comments are concerned, only the following one
has not been addressed. Can you please elaborate as I do not understand
On 01/04/2018 12:35 PM, Rao Shoaib wrote:
Hi Boqun,
Thanks a lot for all your guidance and for catching the cut and paster
error. Please see inline.
On 01/03/2018 05:38 PM, Boqun Feng wrote:
But you introduced a bug here, you should use rcu_state_p instead of
&rcu_sched_state as
Hi Boqun,
Thanks a lot for all your guidance and for catching the cut and paster
error. Please see inline.
On 01/03/2018 05:38 PM, Boqun Feng wrote:
But you introduced a bug here, you should use rcu_state_p instead of
&rcu_sched_state as the third parameter for __call_rcu().
Please re-read
On 01/02/2018 02:23 PM, Matthew Wilcox wrote:
On Tue, Jan 02, 2018 at 12:11:37PM -0800, rao.sho...@oracle.com wrote:
-#define kfree_rcu(ptr, rcu_head) \
- __kfree_rcu(&((ptr)->rcu_head), offsetof(typeof(*(ptr)), rcu_head))
+#define kfree_rcu(ptr, rcu
From: Rao Shoaib
Signed-off-by: Rao Shoaib
---
include/linux/rcupdate.h | 43 +++
include/linux/rcutree.h | 2 --
include/linux/slab.h | 44
kernel/rcu/tree.c| 24 ++--
mm
From: Rao Shoaib
Signed-off-by: Rao Shoaib
---
include/linux/mm.h | 5 ++
include/linux/rcutiny.h | 8 ++-
kernel/sysctl.c | 40
mm/slab.h | 23 +++
mm/slab_common.c| 161 +++-
5 files changed
On 12/21/2017 04:36 AM, Matthew Wilcox wrote:
On Thu, Dec 21, 2017 at 12:19:47AM -0800, rao.sho...@oracle.com wrote:
This patch moves kfree_call_rcu() and related macros out of rcu code. A new
function __call_rcu_lazy() is created for calling __call_rcu() with the lazy
flag.
Something you pro
From: Rao Shoaib
This patch moves kfree_call_rcu() and related macros out of rcu code. A new
function __call_rcu_lazy() is created for calling __call_rcu() with the lazy
flag. Also moving macros generated following checkpatch noise. I do not know
how to silence checkpatch as there is nothing
On 12/19/2017 02:12 PM, Matthew Wilcox wrote:
On Tue, Dec 19, 2017 at 09:41:58PM +0100, Jesper Dangaard Brouer wrote:
If I had to implement this: I would choose to do the optimization in
__rcu_process_callbacks() create small on-call-stack ptr-array for
kfree_bulk(). I would only optimize the
On 12/19/2017 12:41 PM, Jesper Dangaard Brouer wrote:
On Tue, 19 Dec 2017 09:52:27 -0800 rao.sho...@oracle.com wrote:
+/* Main RCU function that is called to free RCU structures */
+static void
+__rcu_bulk_free(struct rcu_head *head, rcu_callback_t func, int cpu, bool lazy)
+{
+ unsigne
On 12/19/2017 11:33 AM, Christopher Lameter wrote:
On Tue, 19 Dec 2017, rao.sho...@oracle.com wrote:
This patch updates kfree_rcu to use new bulk memory free functions as they
are more efficient. It also moves kfree_call_rcu() out of rcu related code to
mm/slab_common.c
It would be great to
On 12/19/2017 11:30 AM, Matthew Wilcox wrote:
On Tue, Dec 19, 2017 at 09:52:27AM -0800, rao.sho...@oracle.com wrote:
@@ -129,6 +130,7 @@ int __kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t
flags, size_t nr,
for (i = 0; i < nr; i++) {
void *x = p[i] = kmem_cache_allo
Signed-off-by: Rao Shoaib
---
include/linux/mm.h | 5 ++
kernel/rcu/tree.c | 14
kernel/sysctl.c| 40 +++
mm/slab.h | 23 +++
mm/slab_common.c | 198 -
5 files changed, 264 insertions(+), 16 deletions
From: Rao Shoaib
This patch updates kfree_rcu to use new bulk memory free functions as they
are more efficient. It also moves kfree_call_rcu() out of rcu related code to
mm/slab_common.c
Signed-off-by: Rao Shoaib
---
include/linux/mm.h | 5 ++
kernel/rcu/tree.c | 14
kernel/sysctl.c
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