Hello RT-list!
I'm pleased to announce the 5.10.204-rt100 stable release.
This release is an RT-only update.
The only change in this release is specific to RT:
rt: mm/page_alloc: backport missing bits from __build_all_zonelists() fix
A while ago upstream landed commit a2ebb51575828 ("mm/page_alloc: use
write_seqlock_irqsave() instead write_seqlock() + local_irq_save().")
to fix a problem that had already been worked on v5.10-rt via commit
7bdd3bd5143a4 ("Revert "mm/page_alloc: fix potential deadlock on
zonelist_update_seqseqlock""). Sebastian pointed out it was important
to backport the missing elements of a2ebb51575828 for code consistency.
You can get this release via the git tree at:
git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git
branch: v5.10-rt
Head SHA1: 3f1186be09688c4aedf2d61176990651cf996c75
Or to build 5.10.204-rt100 directly, the following patches should be applied:
https://www.kernel.org/pub/linux/kernel/v5.x/linux-5.10.tar.xz
https://www.kernel.org/pub/linux/kernel/v5.x/patch-5.10.204.xz
https://www.kernel.org/pub/linux/kernel/projects/rt/5.10/older/patch-5.10.204-rt100.patch.xz
Signing key fingerprint:
9354 0649 9972 8D31 D464 D140 F394 A423 F8E6 7C26
All keys used for the above files and repositories can be found on the
following git repository:
git://git.kernel.org/pub/scm/docs/kernel/pgpkeys.git
Enjoy!
Luis
Changes from v5.10.204-rt99:
---
Luis Claudio R. Goncalves (1):
rt: mm/page_alloc: backport missing bits from __build_all_zonelists() fix
---
mm/page_alloc.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 39d1782b398f..cd1e8d0b2269 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6043,8 +6043,9 @@ static void __build_all_zonelists(void *data)
int nid;
int __maybe_unused cpu;
pg_data_t *self = data;
+ unsigned long flags;
- write_seqlock(&zonelist_update_seq);
+ write_seqlock_irqsave(&zonelist_update_seq, flags);
#ifdef CONFIG_NUMA
memset(node_load, 0, sizeof(node_load));
@@ -6077,7 +6078,7 @@ static void __build_all_zonelists(void *data)
#endif
}
- write_sequnlock(&zonelist_update_seq);
+ write_sequnlock_irqrestore(&zonelist_update_seq, flags);
}
static noinline void __init
