* [PATCH RT 0/3] Linux v5.4.143-rt64-rc2
@ 2021-09-07 15:15 zanussi
2021-09-07 15:15 ` [PATCH RT 1/3] locking/rwsem-rt: Remove might_sleep() in __up_read() zanussi
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: zanussi @ 2021-09-07 15:15 UTC (permalink / raw)
To: LKML, linux-rt-users, Steven Rostedt, Thomas Gleixner,
Carsten Emde, John Kacur, Sebastian Andrzej Siewior,
Daniel Wagner, Clark Williams, Luis Claudio R. Goncalves,
Tom Zanussi
From: Tom Zanussi <zanussi@kernel.org>
Dear RT Folks,
This is the RT stable review cycle of patch 5.4.143-rt64-rc2.
Please scream at me if I messed something up. Please test the patches
too.
The -rc release will be uploaded to kernel.org and will be deleted
when the final release is out. This is just a review release (or
release candidate).
The pre-releases will not be pushed to the git repository, only the
final release is.
If all goes well, this patch will be converted to the next main
release on 2021-09-10.
To build 5.4.143-rt64-rc2 directly, the following patches should be applied:
https://www.kernel.org/pub/linux/kernel/v5.x/linux-5.4.tar.xz
https://www.kernel.org/pub/linux/kernel/v5.x/patch-5.4.143.xz
https://www.kernel.org/pub/linux/kernel/projects/rt/5.4/patch-5.4.143-rt64-rc2.patch.xz
You can also build from 5.4.143-rt63 by applying the incremental patch:
https://www.kernel.org/pub/linux/kernel/projects/rt/5.4/incr/patch-5.4.143-rt63-rt64-rc2.patch.xz
Enjoy,
-- Tom
Andrew Halaney (1):
locking/rwsem-rt: Remove might_sleep() in __up_read()
Gregor Beck (1):
fscache: fix initialisation of cookie hash table raw spinlocks
Tom Zanussi (1):
Linux 5.4.143-rt64-rc2
fs/fscache/cookie.c | 2 +-
kernel/locking/rwsem-rt.c | 1 -
localversion-rt | 2 +-
3 files changed, 2 insertions(+), 3 deletions(-)
--
2.17.1
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH RT 1/3] locking/rwsem-rt: Remove might_sleep() in __up_read()
2021-09-07 15:15 [PATCH RT 0/3] Linux v5.4.143-rt64-rc2 zanussi
@ 2021-09-07 15:15 ` zanussi
2021-09-07 15:15 ` [PATCH RT 2/3] fscache: fix initialisation of cookie hash table raw spinlocks zanussi
2021-09-07 15:15 ` [PATCH RT 3/3] Linux 5.4.143-rt64-rc2 zanussi
2 siblings, 0 replies; 4+ messages in thread
From: zanussi @ 2021-09-07 15:15 UTC (permalink / raw)
To: LKML, linux-rt-users, Steven Rostedt, Thomas Gleixner,
Carsten Emde, John Kacur, Sebastian Andrzej Siewior,
Daniel Wagner, Clark Williams, Luis Claudio R. Goncalves,
Tom Zanussi
Cc: Andrew Halaney
From: Andrew Halaney <ahalaney@redhat.com>
v5.4.143-rt64-rc2 stable review patch.
If anyone has any objections, please let me know.
-----------
[ Upstream commit b2ed0a4302faf2bb09e97529dd274233c082689b ]
There's no chance of sleeping here, the reader is giving up the
lock and possibly waking up the writer who is waiting on it.
Reported-by: Chunyu Hu <chuhu@redhat.com>
Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Tom Zanussi <zanussi@kernel.org>
---
kernel/locking/rwsem-rt.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/kernel/locking/rwsem-rt.c b/kernel/locking/rwsem-rt.c
index 19ea20be3fd7..966946454ced 100644
--- a/kernel/locking/rwsem-rt.c
+++ b/kernel/locking/rwsem-rt.c
@@ -200,7 +200,6 @@ void __up_read(struct rw_semaphore *sem)
if (!atomic_dec_and_test(&sem->readers))
return;
- might_sleep();
raw_spin_lock_irq(&m->wait_lock);
/*
* Wake the writer, i.e. the rtmutex owner. It might release the
--
2.17.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH RT 2/3] fscache: fix initialisation of cookie hash table raw spinlocks
2021-09-07 15:15 [PATCH RT 0/3] Linux v5.4.143-rt64-rc2 zanussi
2021-09-07 15:15 ` [PATCH RT 1/3] locking/rwsem-rt: Remove might_sleep() in __up_read() zanussi
@ 2021-09-07 15:15 ` zanussi
2021-09-07 15:15 ` [PATCH RT 3/3] Linux 5.4.143-rt64-rc2 zanussi
2 siblings, 0 replies; 4+ messages in thread
From: zanussi @ 2021-09-07 15:15 UTC (permalink / raw)
To: LKML, linux-rt-users, Steven Rostedt, Thomas Gleixner,
Carsten Emde, John Kacur, Sebastian Andrzej Siewior,
Daniel Wagner, Clark Williams, Luis Claudio R. Goncalves,
Tom Zanussi
Cc: Gregor Beck, Gregor Beck
From: Gregor Beck <gbeck@esigma-technology.com>
v5.4.143-rt64-rc2 stable review patch.
If anyone has any objections, please let me know.
-----------
The original patch, 602660600bcd ("fscache: initialize cookie hash
table raw spinlocks"), subtracted 1 from the shift and so still left
some spinlocks uninitialized. This fixes that.
[zanussi: Added changelog text]
Signed-off-by: Gregor Beck <gregor.beck@gmail.com>
Fixes: 602660600bcd ("fscache: initialize cookie hash table raw spinlocks")
Signed-off-by: Tom Zanussi <zanussi@kernel.org>
---
fs/fscache/cookie.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c
index 5508d92e3f8f..cba2a226897f 100644
--- a/fs/fscache/cookie.c
+++ b/fs/fscache/cookie.c
@@ -963,6 +963,6 @@ void __init fscache_cookie_init(void)
{
int i;
- for (i = 0; i < (1 << fscache_cookie_hash_shift) - 1; i++)
+ for (i = 0; i < ARRAY_SIZE(fscache_cookie_hash); i++)
INIT_HLIST_BL_HEAD(&fscache_cookie_hash[i]);
}
--
2.17.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH RT 3/3] Linux 5.4.143-rt64-rc2
2021-09-07 15:15 [PATCH RT 0/3] Linux v5.4.143-rt64-rc2 zanussi
2021-09-07 15:15 ` [PATCH RT 1/3] locking/rwsem-rt: Remove might_sleep() in __up_read() zanussi
2021-09-07 15:15 ` [PATCH RT 2/3] fscache: fix initialisation of cookie hash table raw spinlocks zanussi
@ 2021-09-07 15:15 ` zanussi
2 siblings, 0 replies; 4+ messages in thread
From: zanussi @ 2021-09-07 15:15 UTC (permalink / raw)
To: LKML, linux-rt-users, Steven Rostedt, Thomas Gleixner,
Carsten Emde, John Kacur, Sebastian Andrzej Siewior,
Daniel Wagner, Clark Williams, Luis Claudio R. Goncalves,
Tom Zanussi
From: Tom Zanussi <zanussi@kernel.org>
v5.4.143-rt64-rc2 stable review patch.
If anyone has any objections, please let me know.
-----------
Signed-off-by: Tom Zanussi <zanussi@kernel.org>
---
localversion-rt | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/localversion-rt b/localversion-rt
index b0e8dd7bd707..cc5ec6b9aa59 100644
--- a/localversion-rt
+++ b/localversion-rt
@@ -1 +1 @@
--rt63
+-rt64-rc2
--
2.17.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
end of thread, other threads:[~2021-09-07 15:15 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2021-09-07 15:15 [PATCH RT 0/3] Linux v5.4.143-rt64-rc2 zanussi
2021-09-07 15:15 ` [PATCH RT 1/3] locking/rwsem-rt: Remove might_sleep() in __up_read() zanussi
2021-09-07 15:15 ` [PATCH RT 2/3] fscache: fix initialisation of cookie hash table raw spinlocks zanussi
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