: 33463
4 - 4 : 20669
5 - 5 : 2766
6 - 6 : 183
...
Reviewed-by: Joel Fernandes
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 14 +++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
Update the documentation about rcu_normal_wake_from_gp parameter.
Reviewed-by: Joel Fernandes
Signed-off-by: Uladzislau Rezki (Sony)
---
Documentation/admin-guide/kernel-parameters.txt | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/Documentation/admin-guide/kernel
Update the documentation about rcu_normal_wake_from_gp parameter.
Signed-off-by: Uladzislau Rezki (Sony)
---
Documentation/admin-guide/kernel-parameters.txt | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/Documentation/admin-guide/kernel-parameters.txt
b/Documentation
: 33463
4 - 4 : 20669
5 - 5 : 2766
6 - 6 : 183
...
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 14 +++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index e8a4b720d7d2
Update the documentation about rcu_normal_wake_from_gp parameter.
Signed-off-by: Uladzislau Rezki (Sony)
---
Documentation/admin-guide/kernel-parameters.txt | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/admin-guide/kernel-parameters.txt
b/Documentation/admin
- 4 : 20669
5 - 5 : 2766
6 - 6 : 183
...
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 7 ++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 14d4499c6fc3..c0e0b38a08dc 100644
--- a/kernel/rcu
to help identify a faulty
caller.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 4
1 file changed, 4 insertions(+)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index e8a4b720d7d2..14d4499c6fc3 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3072,6 +3072,10
task that invoked srcu_read_lock().
Signed-off-by: Uladzislau Rezki (Sony)
---
tools/memory-model/Documentation/explanation.txt | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/memory-model/Documentation/explanation.txt
b/tools/memory-model/Documentation/explanation.txt
type of wq because it is designed for
this purpose.
Cc:
Cc: Greg Kroah-Hartman
Cc: Keith Busch
Closes: https://www.spinics.net/lists/kernel/msg5563270.html
Fixes: 6c6c47b063b5 ("mm, slab: call kvfree_rcu_barrier() from
kmem_cache_destroy()"),
Reported-by: Keith Busch
Signed-off-by: Ul
warning, it is passed.
Reviewed-by: Keith Busch
Co-developed-by: Vlastimil Babka
Signed-off-by: Uladzislau Rezki (Sony)
---
lib/slub_kunit.c | 59
1 file changed, 59 insertions(+)
diff --git a/lib/slub_kunit.c b/lib/slub_kunit.c
index f11691315c2f
full() and
get_state_synchronize_rcu_full() APIs, which use separate variables
for expedited and normal states.
Link: https://lore.kernel.org/lkml/Z5ikQeVmVdsWQrdD@pc636/T/
Fixes: 988f569ae041 ("rcu: Reduce synchronize_rcu() latency")
Reported-by: cheung wall
Signed-off-by: Uladzislau Rezki (Sony)
pus() during torture initialization.
Reviewed-by: Paul E. McKenney
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/rcutorture.c | 22 --
1 file changed, 16 insertions(+), 6 deletions(-)
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index e01c0022c175..65095
to 1, because it is specifically for
a normal synchronize_rcu() testing, also a newly added parameter which
is "rcu_normal_wake_from_gp" is set to 1 also. That prevents interaction
with other callbacks in a system.
Reviewed-by: Paul E. McKenney
Signed-off-by: Uladzislau Rezki (Sony)
l.org/lkml/Z5ikQeVmVdsWQrdD@pc636/T/
Fixes: 988f569ae041 ("rcu: Reduce synchronize_rcu() latency")
Reported-by: cheung wall
Signed-off-by: Uladzislau Rezki (Sony)
---
include/linux/rcupdate_wait.h | 3 +++
kernel/rcu/tree.c | 8 +++-
2 files changed, 6 insertions(+), 5 deletions(-)
to 1, because it is specifically for
a normal synchronize_rcu() testing, also a newly added parameter which
is "rcu_normal_wake_from_gp" is set to 1 also. That prevents interaction
with other callbacks in a system.
Reviewed-by: Paul E. McKenney
Signed-off-by: Uladzislau Rezki (Sony)
pus() during torture initialization.
Reviewed-by: Paul E. McKenney
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/rcutorture.c | 22 --
1 file changed, 16 insertions(+), 6 deletions(-)
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index d98b3bd6d91f..f3762
to 1, because it is specifically for
a normal synchronize_rcu() testing, also a newly added parameter which
is "rcu_normal_wake_from_gp" is set to 1 also. That prevents interaction
with other callbacks in a system.
Reviewed-by: Paul E. McKenney
Signed-off-by: Uladzislau Rezki (Sony)
pus() during torture initialization.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/rcutorture.c | 22 --
1 file changed, 16 insertions(+), 6 deletions(-)
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index d98b3bd6d91f..f376262532ce 100644
--- a/kernel/rc
l.org/lkml/Z5ikQeVmVdsWQrdD@pc636/T/
Fixes: 988f569ae041 ("rcu: Reduce synchronize_rcu() latency")
Reported-by: cheung wall
Signed-off-by: Uladzislau Rezki (Sony)
---
include/linux/rcupdate_wait.h | 4
kernel/rcu/tree.c | 8 +++-
2 files changed, 7 insertions(+), 5 deleti
Switch for using of get_state_synchronize_rcu_full() and
poll_state_synchronize_rcu_full() pair for debug a normal
synchronize_rcu() call.
Just using "not" full APIs to identify if a grace period
is passed or not might lead to a false kernel splat.
Signed-off-by: Uladzislau R
This configuration specifies the maximum number of CPUs which
is set to 8. The problem is that it can not be overwritten for
something higher.
Remove that configuration for TREE05, so it is possible to run
the torture test on as many CPUs as many system has.
Signed-off-by: Uladzislau Rezki (Sony
to 1, because it is specifically for
a normal synchronize_rcu() testing, also a newly added parameter which
is "rcu_normal_wake_from_gp" is set to 1 also. That prevents interaction
with other callbacks in a system.
Signed-off-by: Uladzislau Rezki (Sony)
---
tools/testing/selftests/rcutortu
pus() during torture initialization.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/rcutorture.c | 4
1 file changed, 4 insertions(+)
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index d26fb1d33ed9..6bc161e1e8ac 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcu
Hi Linus,
Please pull the latest RCU git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux.git
tags/rcu.release.v6.14
# HEAD: 4b5c2205526cc1579b840893b98eb7545220f7cf:
Merge branches 'fixes.2024.12.14a', 'rcutorture.2024.12.14a',
'srcu.2024.12.14a' and 'torture-test.2024.12.1
ot; string
as a first argument.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index b3853ae6e869..6ab21655c248 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3379,
Move kvfree_rcu() functionality to the slab_common.c file.
Signed-off-by: Uladzislau Rezki (Sony)
---
include/linux/rcupdate.h | 1 -
include/linux/slab.h | 1 +
kernel/rcu/tree.c| 879 --
mm/slab_common.c | 880
Rename "rcu-kfree" to "slab-kvfree-rcu" since it goes to the
slab_common.c file soon.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 6ab21655c248.
. Therefore, those functions name
will not conflict when a kernel is compiled for CONFIG_TINY_RCU
flavor.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 90 +--
1 file changed, 47 insertions(+), 43 deletions(-)
diff --git a/kernel/rcu
Introduce a separate initialization of kvfree_rcu() functionality.
For such purpose a kfree_rcu_batch_init() is renamed to a kvfree_rcu_init()
and it is invoked from the main.c right after rcu_init() is done.
Signed-off-by: Uladzislau Rezki (Sony)
---
include/linux/rcupdate.h | 1 +
init/main.c
move.
Uladzislau Rezki (Sony) (5):
rcu/kvfree: Initialize kvfree_rcu() separately
rcu/kvfree: Move some functions under CONFIG_TINY_RCU
rcu/kvfree: Adjust names passed into trace functions
rcu/kvfree: Adjust a shrinker name
mm/slab: Move kvfree_rcu() into SLAB
include/linux/slab.h | 1
As a final step an initialization of kvfree_rcu() functionality is
copied into slab_common.c from the tree.c file as well as shrinker
related code.
The function is temporary marked as "__maybe_unused" to eliminate
a compiler warnings.
Signed-off-by: Uladzislau Rezki (Sony)
---
mm/sla
kernel/rcu/tree.c file;
- Remove a temporary solution to handle freeing ptrs. after GP;
- Remove "__maybe_unused" from the slab_common.c file;
- Do not export main functionality for CONFIG_TINY_RCU case.
Signed-off-by: Uladzislau Rezki (Sony)
---
include/linux/slab.h | 1 +
i
marked as "__maybe_unused" in the slab_common.c file.
Signed-off-by: Uladzislau Rezki (Sony)
---
mm/slab_common.c | 507 +++
1 file changed, 507 insertions(+)
diff --git a/mm/slab_common.c b/mm/slab_common.c
index a249fdb0d92e..e7e1d5b5f
This patch copies main data structures of kvfree_rcu() API
from the kernel/rcu/tree.c into slab_common.c file. Later on,
it will be removed from the tree.c.
Signed-off-by: Uladzislau Rezki (Sony)
---
mm/slab_common.c | 95
1 file changed, 95
variant;
- adds an rcu_barrier() call to the kvfree_rcu_barrier().
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 27 +++
1 file changed, 23 insertions(+), 4 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index b1f883fcd918..ab24229dfa73
Rezki (Sony) (5):
rcu/kvfree: Temporary reclaim over call_rcu()
mm/slab: Copy main data structures of kvfree_rcu()
mm/slab: Copy internal functions of kvfree_rcu()
mm/slab: Copy a function of kvfree_rcu() initialization
mm/slab: Move kvfree_rcu() into SLAB
include/linux/slab.h | 1 +
init
instead of
doing a proper unwinding.
Fix it by jumping to "unwind" label instead of returning -1.
Reviewed-by: Paul E. McKenney
Reported-by: Dan Carpenter
Closes: https://lore.kernel.org/rcu/ZxfTrHuEGtgnOYWp@pc636/T/
Fixes: 084e04fff160 ("rcuscale: Add laziness and kfree t
-by: Uladzislau Rezki (Sony)
---
kernel/rcu/rcuscale.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/kernel/rcu/rcuscale.c b/kernel/rcu/rcuscale.c
index d360fa44b234..0f3059b1b80d 100644
--- a/kernel/rcu/rcuscale.c
+++ b/kernel/rcu/rcuscale.c
@@ -889,14 +889,12 @@ kfree_scale_init(void
There are two places where WARN_ON_ONCE() is called two times
in the error paths. One which is encapsulated into if() condition
and another one, which is unnecessary, is placed in the brackets.
Remove an extra WARN_ON_ONCE() splat which is in brackets.
Signed-off-by: Uladzislau Rezki (Sony
instead of
doing a proper unwinding.
Fix it by jumping to "unwind" label instead of returning -1.
Reported-by: Dan Carpenter
Closes: https://lore.kernel.org/rcu/ZxfTrHuEGtgnOYWp@pc636/T/
Fixes: 084e04fff160 ("rcuscale: Add laziness and kfree tests")
Signed-off-by: Uladzislau R
r.appspotmail.com
Link: https://lore.kernel.org/lkml/ZxZ68KmHDQYU0yfD@pc636/T/
Fixes: 8fc5494ad5fa ("rcu/kvfree: Move need_offload_krc() out of krcp->lock")
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 14 --
1 file changed, 12 insertions(+), 2 deletions(-
to complete an offloading.
Link: https://lore.kernel.org/lkml/ZvWUt2oyXRsvJRNc@pc636/T/
Suggested-by: Linus Torvalds
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 9 +
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
.
The differecne between v1 -> v2:
- Drop "Support dynamic rcu_head for single argument objects" patch;
- Use cond_synchronize_rcu_full() in a slow path.
Uladzislau Rezki (Sony) (2):
rcu/kvfree: Use polled API in a slow path
rcu/kvfree: Switch to expedited version in slow path
from this.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 7 +--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index e641cc681901..182772494cb0 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3789,6 +3789,7
synchronize_rcu_expedited() act like a regular
synchronize_rcu(), so no harm done to them.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 182772494cb0..87a64fcffa7f 100644
. There is no reason in
setting it force and back.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 3ddc9dc97487..17c128d93825 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/r
To queue a new batch we have a kfree_rcu_monitor() function that
checks "monitor_todo" var. and invokes kfree_rcu_drain_unlock()
to start a new batch after a GP. Get rid of open-coded case by
switching it to the separate function.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/
s well
as "krcp->bkvhead[1]". So, we have to queue the "monitor work"
if _any_ corresponding channel is not empty.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/kernel/rcu/tree.c b/kern
nr_bkv_objs represents the counter of objects in the page-cache.
Accessing to it requires taking the lock. Switch to READ_ONCE()
WRITE_ONCE() macros to provide an atomic access to that counter.
A shrinker is one of the user of it.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c
Rezki (Sony)
Signed-off-by: Uladzislau Rezki (Sony)
Signed-off-by: Zqiang
---
.../admin-guide/kernel-parameters.txt | 5 ++
kernel/rcu/tree.c | 82 +--
2 files changed, 78 insertions(+), 9 deletions(-)
diff --git a/Documentation/admin-guide
s in
get_cached_bnode()/put_cached_bnode() it is protected
by the lock.
- Capitalize the word following by ":" in commit messages.
Uladzislau Rezki (Sony) (4):
[1] kvfree_rcu: Use [READ/WRITE]_ONCE() macros to access to nr_bkv_objs
[2] kvfree_rcu: Add a bulk-list check when a schedul
To queue a new batch we have a kfree_rcu_monitor() function that
checks KRC_MONITOR_TODO bit and invokes kfree_rcu_drain_unlock()
to start a new batch after a GP. Get rid of open-coded case by
switching it to the separate function.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c
note that checking/setting
this bit is protected by the krcp->lock spinlock.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index da3605067cc1..012030cbe55e 100644
--
s well
as "krcp->bkvhead[1]". So, we have to queue the "monitor work"
if _any_ corresponding channel is not empty.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 10 --
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/kernel/rcu/tree.c
access to the flags variable atomic bit operations are used.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 61 ---
1 file changed, 36 insertions(+), 25 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 1b0289fa1cdd
nr_bkv_objs represents the counter of objects in the page-cache.
Accessing to it requires taking the lock. Switch to READ_ONCE()
WRITE_ONCE() macros to provide an atomic access to that counter.
A shrinker is one of the user of it.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c
Rezki (Sony)
Signed-off-by: Uladzislau Rezki (Sony)
Signed-off-by: Zqiang
---
kernel/rcu/tree.c | 70 +--
1 file changed, 61 insertions(+), 9 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 2c9cf4df942c..8b74edcd11d4 100644
--- a
The following commit has been merged into the core/rcu branch of tip:
Commit-ID: 148e3731d124079a036b3acf780f3d35c1b9c0aa
Gitweb:
https://git.kernel.org/tip/148e3731d124079a036b3acf780f3d35c1b9c0aa
Author:Uladzislau Rezki (Sony)
AuthorDate:Wed, 20 Jan 2021 17:21:46 +01:00
The following commit has been merged into the core/rcu branch of tip:
Commit-ID: 3e7ce7a187fc6aaa9fda1310a2b8da8770342ff7
Gitweb:
https://git.kernel.org/tip/3e7ce7a187fc6aaa9fda1310a2b8da8770342ff7
Author:Uladzislau Rezki (Sony)
AuthorDate:Fri, 29 Jan 2021 17:16:03 +01:00
The following commit has been merged into the core/rcu branch of tip:
Commit-ID: ee6ddf58475cce8a3d3697614679cd8cb4a6f583
Gitweb:
https://git.kernel.org/tip/ee6ddf58475cce8a3d3697614679cd8cb4a6f583
Author:Uladzislau Rezki (Sony)
AuthorDate:Fri, 29 Jan 2021 21:05:05 +01:00
The following commit has been merged into the core/rcu branch of tip:
Commit-ID: 686fe1bf6bcce3ce9fc03c9d9035c643c320ca46
Gitweb:
https://git.kernel.org/tip/686fe1bf6bcce3ce9fc03c9d9035c643c320ca46
Author:Uladzislau Rezki (Sony)
AuthorDate:Wed, 17 Feb 2021 19:51:10 +01:00
Rezki (Sony)
---
lib/test_vmalloc.c | 12 ++--
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/lib/test_vmalloc.c b/lib/test_vmalloc.c
index d337985e4c5e..01e9543de566 100644
--- a/lib/test_vmalloc.c
+++ b/lib/test_vmalloc.c
@@ -24,7 +24,7 @@
MODULE_PARM_DESC(name, msg
Signed-off-by: Uladzislau Rezki (Sony)
---
mm/vmalloc.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 093c7e034ca2..1e643280cbcf 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1503,7 +1503,6 @@ static struct vmap_area *alloc_vmap_area(unsigned long
size
: Uladzislau Rezki (Sony)
---
mm/vmalloc.c | 60 +++-
1 file changed, 27 insertions(+), 33 deletions(-)
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 8b564f91a610..093c7e034ca2 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1430,6 +1430,29 @@ static void
ch are equal to number of CPUs.
Also update an output of help message based on a new interface.
CC: linux-kselft...@vger.kernel.org
CC: Shuah Khan
Signed-off-by: Uladzislau Rezki (Sony)
---
tools/testing/selftests/vm/test_vmalloc.sh | 21 +++--
1 file changed, 11 insertions(+), 10 de
By using this parameter we can specify how many workers are
created to perform vmalloc tests. By default it is one CPU.
The maximum value is set to 1024.
As a result of this change a 'single_cpu_test' one becomes
obsolete, therefore it is no longer needed.
Signed-off-by: Uladzislau R
Remove two test cases related to kvfree_rcu() and SLAB. Those are
considered as redundant now, because similar test functionality
has recently been introduced in the "rcuscale" RCU test-suite.
Signed-off-by: Uladzislau Rezki (Sony)
---
lib/test_vmal
.
When a system hits such condition, a page cache is drained for
all CPUs in a system. Apart of that a page cache work is delayed
with 5 seconds interval until a memory pressure disappears.
Co-developed-by: Uladzislau Rezki (Sony)
Signed-off-by: Uladzislau Rezki (Sony)
Signed-off-by: Zqiang
00 MAX: 11312145160
patch: AVG: 10787596486.1 MIN: 10397559880 MAX: 11214901050
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 91 +--
1 file changed, 56 insertions(+), 35 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/
.
When a system hits such condition, a page cache is drained for
all CPUs in a system. Apart of that a page cache work is delayed
with 5 seconds interval until a memory pressure disappears.
Co-developed-by: Uladzislau Rezki (Sony)
Signed-off-by: Uladzislau Rezki (Sony)
Signed-off-by: Zqiang
this is that it allows testing of both
options with one test.
Suggested-by: Paul E. McKenney
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/rcuscale.c | 15 ++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/kernel/rcu/rcuscale.c b/kernel/rcu/rcuscale.c
index
The following commit has been merged into the core/rcu branch of tip:
Commit-ID: 5130b8fd06901c1b3a4bd0d0f5c5ea99b2b0a6f0
Gitweb:
https://git.kernel.org/tip/5130b8fd06901c1b3a4bd0d0f5c5ea99b2b0a6f0
Author:Uladzislau Rezki (Sony)
AuthorDate:Fri, 20 Nov 2020 12:49:16 +01:00
The following commit has been merged into the core/rcu branch of tip:
Commit-ID: 5ea5d1ed572cb5ac173674fe770252253d2d9e27
Gitweb:
https://git.kernel.org/tip/5ea5d1ed572cb5ac173674fe770252253d2d9e27
Author:Uladzislau Rezki (Sony)
AuthorDate:Fri, 20 Nov 2020 12:49:17 +01:00
The following commit has been merged into the core/rcu branch of tip:
Commit-ID: bfba7ed084f8ab0269a5a1d2f51b07865456c334
Gitweb:
https://git.kernel.org/tip/bfba7ed084f8ab0269a5a1d2f51b07865456c334
Author:Uladzislau Rezki (Sony)
AuthorDate:Wed, 09 Dec 2020 21:27:32 +01:00
s.
With this change an rcuscale and the parameters which are in question
never runs into "Kernel panic".
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 1e86212
To stress and test a single argument of kfree_rcu() call, we
should to have a special coverage for it. We used to have it
in the test-suite related to vmalloc stressing. The reason is
the rcuscale is a correct place for RCU related things.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu
ned-off-by: Uladzislau Rezki (Sony)
Signed-off-by: Paul E. McKenney
---
kernel/rcu/tree.c | 42 ++
1 file changed, 26 insertions(+), 16 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index e04e336bee42..2014fb22644d 100644
--- a/kernel/rcu/tr
chal Hocko
Signed-off-by: Paul E. McKenney
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 2014fb22644d..454809514c91 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
() are now independent of RT, use it in order
to prevent any migration during a page request for a specific CPU it
is requested for.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index
The following commit has been merged into the core/rcu branch of tip:
Commit-ID: 56292e8609e39537297a7468dda4d87b9bd81d6a
Gitweb:
https://git.kernel.org/tip/56292e8609e39537297a7468dda4d87b9bd81d6a
Author:Uladzislau Rezki (Sony)
AuthorDate:Thu, 29 Oct 2020 17:50:04 +01:00
Add self tests for checking of RCU-tasks API functionality.
It covers:
- wait API functions;
- invoking/completion call_rcu_tasks*().
Self-tests are run when CONFIG_PROVE_RCU kernel parameter is set.
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tasks.h | 44
es in early_initcall")
Signed-off-by: Uladzislau Rezki (Sony)
---
include/linux/rcupdate.h | 6 ++
init/main.c | 1 +
kernel/rcu/tasks.h | 26 ++
3 files changed, 29 insertions(+), 4 deletions(-)
diff --git a/include/linux/rcupdate.h b/include/linux/
for users.
Signed-off-by: Uladzislau Rezki (Sony)
---
include/linux/rcupdate.h | 22 --
1 file changed, 12 insertions(+), 10 deletions(-)
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index e09c0d87b3c3..b1e75648d402 100644
--- a/include/linux/rcupdate.h
Make the kvfree_rcu_arg_2() to be open-coded, so readability
and review look better from the first glance. Moreover, that
makes it clear that both kvfree_rcu_arg_1/2() use one single
interface.
Signed-off-by: Uladzislau Rezki (Sony)
---
include/linux/rcupdate.h | 18 ++
1 file
presents a
free space is faster because of (a). As a result the lock
contention is also reduced.
Signed-off-by: Uladzislau Rezki (Sony)
---
include/linux/vmalloc.h | 8 ++--
mm/vmalloc.c| 90 +++--
2 files changed, 53 insertions(+
e same, to perform
a cleanup.
Signed-off-by: Uladzislau Rezki (Sony)
---
mm/vmalloc.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index d7075ad340aa..b08b06a8cc2a 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2479,8 +2479,7 @@ s
From: Thomas Gleixner
CONFIG_PREEMPT_COUNT is now unconditionally enabled and will be
removed. Cleanup the leftovers before doing so.
Signed-off-by: Thomas Gleixner
Cc: Andrew Morton
Cc: linux...@kvack.org
Signed-off-by: Uladzislau Rezki (Sony)
---
include/linux/pagemap.h | 4 +---
1 file
From: Thomas Gleixner
CONFIG_PREEMPT_COUNT is now unconditionally enabled and will be
removed. Cleanup the leftovers before doing so.
Signed-off-by: Thomas Gleixner
Cc: Russell King
Cc: linux-arm-ker...@lists.infradead.org
Signed-off-by: Uladzislau Rezki (Sony)
---
arch/arm/include/asm
essential functionality of the kernel consistent
accross the various preemption models.
Enable CONFIG_PREEMPT_COUNT unconditionally. Follow up changes will remove
the #ifdeffery and remove the config option at the end.
Signed-off-by: Thomas Gleixner
Signed-off-by: Uladzislau Rezki (Sony)
-
From: Thomas Gleixner
CONFIG_PREEMPT_COUNT is now unconditionally enabled and will be
removed. Cleanup the leftovers before doing so.
Signed-off-by: Thomas Gleixner
Cc: Chris Zankel
Cc: Max Filippov
Cc: linux-xte...@linux-xtensa.org
Signed-off-by: Uladzislau Rezki (Sony)
---
arch/xtensa
han
Cc: r...@vger.kernel.org
Cc: linux-kselft...@vger.kernel.org
Signed-off-by: Uladzislau Rezki (Sony)
---
tools/testing/selftests/rcutorture/configs/rcu/SRCU-t| 1 -
tools/testing/selftests/rcutorture/configs/rcu/SRCU-u| 1 -
tools/testing/selftests/rcutorture/configs/rcu/TINY01
-by: Uladzislau Rezki (Sony)
---
include/linux/lockdep.h | 6 ++
lib/Kconfig.debug | 1 -
2 files changed, 2 insertions(+), 5 deletions(-)
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index f5594879175a..d05db575f60f 100644
--- a/include/linux/lockdep.h
+++ b/include
Segall
Cc: Mel Gorman
Cc: Daniel Bristot de Oliveira
Signed-off-by: Uladzislau Rezki (Sony)
---
include/linux/preempt.h | 37 -
1 file changed, 4 insertions(+), 33 deletions(-)
diff --git a/include/linux/preempt.h b/include/linux/preempt.h
index 7d9c1c0e149c
From: Thomas Gleixner
All conditionals and irritations are gone.
Signed-off-by: Thomas Gleixner
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/Kconfig.preempt | 3 ---
1 file changed, 3 deletions(-)
diff --git a/kernel/Kconfig.preempt b/kernel/Kconfig.preempt
index 3f4712ff073b
Cc: dri-de...@lists.freedesktop.org
Signed-off-by: Uladzislau Rezki (Sony)
---
drivers/gpu/drm/i915/Kconfig.debug | 1 -
drivers/gpu/drm/i915/i915_utils.h | 3 +--
2 files changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/Kconfig.debug
b/drivers/gpu/drm/i915
From: Thomas Gleixner
CONFIG_PREEMPT_COUNT is now unconditionally enabled and will be
removed. Cleanup the leftovers before doing so.
Signed-off-by: Thomas Gleixner
Signed-off-by: Uladzislau Rezki (Sony)
---
include/linux/uaccess.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions
within the
memory allocator.
[ paulmck: Add add_ptr_to_bulk_krc_lock header comment per Michal Hocko. ]
Signed-off-by: Uladzislau Rezki (Sony)
Signed-off-by: Paul E. McKenney
---
kernel/rcu/tree.c | 48 ++-
1 file changed, 31 insertions(+), 17 deletions
Segall
Cc: Mel Gorman
Cc: Daniel Bristot de Oliveira
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/sched/core.c | 6 +-
lib/Kconfig.debug | 1 -
2 files changed, 1 insertion(+), 6 deletions(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index d2003a7d5ab5..e172f2ddfa16 100644
by: Sebastian Andrzej Siewior
Signed-off-by: Uladzislau Rezki (Sony)
---
kernel/rcu/tree.c | 109 --
1 file changed, 66 insertions(+), 43 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 06895ef85d69..f2da2a1cc716 100644
--- a/kernel/
counter nor is there a reason to prevent the enablement of
CONFIG_DEBUG_ATOMIC_SLEEP on such architectures.
Remove the dependencies.
Signed-off-by: Thomas Gleixner
Signed-off-by: Uladzislau Rezki (Sony)
---
lib/Kconfig.debug | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/lib
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