Syzbot CI

Subject	mm/fbatch: drain lru_add_drain() and _all()
Author	hughd@google.com
Date	2026-08-24 13:52:41 +0000 UTC
Version
Cc	ackerleytng@google.com akpm@linux-foundation.org axboe@kernel.dk baohua@kernel.org baolin.wang@linux.alibaba.com bigeasy@linutronix.de binbin.wu@linux.intel.com brauner@kernel.org cl@gentwo.org david@kernel.org hannes@cmpxchg.org hch@lst.de hughd@google.com imbrenda@linux.ibm.com jack@suse.cz jp.kobryn@linux.dev kas@kernel.org lance.yang@linux.dev leobras.c@gmail.com linmiaohe@huawei.com linux-block@vger.kernel.org linux-fsdevel@vger.kernel.org linux-kernel@vger.kernel.org linux-mm@kvack.org ljs@kernel.org mgorman@techsingularity.net mhocko@suse.com minchan@kernel.org mtosatti@redhat.com muchun.song@linux.dev osalvador@suse.de peterz@infradead.org qi.zheng@linux.dev riel@surriel.com ryncsn@gmail.com shakeel.butt@linux.dev surenb@google.com vbabka@kernel.org viro@zeniv.linux.org.uk willy@infradead.org yang@os.amperecomputing.com yuzhao@google.com ziy@nvidia.com zokeefe@google.com

Subject

mm/fbatch: drain lru_add_drain() and _all()

Author

hughd@google.com

Date

2026-08-24 13:52:41 +0000 UTC

Version

ackerleytng@google.com akpm@linux-foundation.org axboe@kernel.dk baohua@kernel.org baolin.wang@linux.alibaba.com bigeasy@linutronix.de binbin.wu@linux.intel.com brauner@kernel.org cl@gentwo.org david@kernel.org hannes@cmpxchg.org hch@lst.de hughd@google.com imbrenda@linux.ibm.com jack@suse.cz jp.kobryn@linux.dev kas@kernel.org lance.yang@linux.dev leobras.c@gmail.com linmiaohe@huawei.com linux-block@vger.kernel.org linux-fsdevel@vger.kernel.org linux-kernel@vger.kernel.org linux-mm@kvack.org ljs@kernel.org mgorman@techsingularity.net mhocko@suse.com minchan@kernel.org mtosatti@redhat.com muchun.song@linux.dev osalvador@suse.de peterz@infradead.org qi.zheng@linux.dev riel@surriel.com ryncsn@gmail.com shakeel.butt@linux.dev surenb@google.com vbabka@kernel.org viro@zeniv.linux.org.uk willy@infradead.org yang@os.amperecomputing.com yuzhao@google.com ziy@nvidia.com zokeefe@google.com

Name	Content [All]
[PATCH 01/25] mm/fbatch: remove !CONFIG_SMP special case of folio_activate()	[Body]
[PATCH 02/25] mm/fbatch: allow folios_put_refs() to skip xa_is_value() entries	[Body]
[PATCH 03/25] mm/fbatch: temporarily disable lazyfree and mlock+munlock batching	[Body]
[PATCH 04/25] mm/fbatch: lru bit set, no extra ref, while folio on per-cpu fbatch	[Body]
[PATCH 05/25] mm/fbatch: lru_add_del_folio()+folio_add_lru() after clear_lru()	[Body]
[PATCH 06/25] mm/fbatch: fbatch_drain_lazyfree(onstack fbatch) before ptl unlock	[Body]
[PATCH 07/25] mm/fbatch: LRU_NEXT_ACTIVATE bit to optimize folio_activate()	[Body]
[PATCH 08/25] mm/fbatch: replace mlock_new_folio() by __folio_add_lru(,mlockit)	[Body]
[PATCH 09/25] mm/fbatch: restore mlock+munlock batching, without extra ref	[Body]
[PATCH 10/25] mm/fbatch: remove several uses of mlock_drain_local()	[Body]
[PATCH 11/25] mm/fbatch: remove migration's PAGE_WAS_MLOCKED lru_add_drain()	[Body]
[PATCH 12/25] mm/fbatch: remove percpu_pvec_drained and folios_put()	[Body]
[PATCH 13/25] mm/fbatch: no lru_add_drain() to collect_longterm_unpinnable_folios()	[Body]
[PATCH 14/25] mm/fbatch: no lru_add_drain() nor _all() for memfd_wait_for_pins()	[Body]
[PATCH 15/25] mm/fbatch: remove shake_folio() shake_page() from memory-failure	[Body]
[PATCH 16/25] mm/fbatch: remove lru_cache_disable(() from NUMA folio migration	[Body]
[PATCH 17/25] mm/fbatch: no lru_cache_disable() in __alloc_contig_migrate_range()	[Body]
[PATCH 18/25] mm/fbatch: remove lru_add_drain() and _all() calls from various	[Body]
[PATCH 19/25] mm/fbatch: vm/stat_refresh include lru_add_drain() on each cpu	[Body]
[PATCH 20/25] s390/fbatch: no lru_add_drain_all() in s390_wiggle_split_folio()	[Body]
[PATCH 21/25] block/fbatch: no lru_add_drain_all() in invalidate_bdev()	[Body]
[PATCH 22/25] fs/fbatch: drop_caches invalidate_bh_lrus() not lru_add_drain_all()	[Body]
[PATCH 23/25] fs,mm/fbatch: use invalidate_bh_lrus() not invalidate_bh_lrus_cpu()	[Body]
[PATCH 24/25] fs,mm/fbatch: lru_cache_disable() keep off buffer_head lrus only	[Body]
[PATCH 25/25] mm/fbatch: move lru_add_drain_all() declaration to mm/internal.h	[Body]

Name

Content [All]

[PATCH 01/25] mm/fbatch: remove !CONFIG_SMP special case of folio_activate()

[PATCH 02/25] mm/fbatch: allow folios_put_refs() to skip xa_is_value() entries

[PATCH 03/25] mm/fbatch: temporarily disable lazyfree and mlock+munlock batching

[PATCH 04/25] mm/fbatch: lru bit set, no extra ref, while folio on per-cpu fbatch

[PATCH 05/25] mm/fbatch: lru_add_del_folio()+folio_add_lru() after clear_lru()

[PATCH 06/25] mm/fbatch: fbatch_drain_lazyfree(onstack fbatch) before ptl unlock

[PATCH 07/25] mm/fbatch: LRU_NEXT_ACTIVATE bit to optimize folio_activate()

[PATCH 08/25] mm/fbatch: replace mlock_new_folio() by __folio_add_lru(,mlockit)

[PATCH 09/25] mm/fbatch: restore mlock+munlock batching, without extra ref

[PATCH 10/25] mm/fbatch: remove several uses of mlock_drain_local()

[PATCH 11/25] mm/fbatch: remove migration's PAGE_WAS_MLOCKED lru_add_drain()

[PATCH 12/25] mm/fbatch: remove percpu_pvec_drained and folios_put()

[PATCH 13/25] mm/fbatch: no lru_add_drain() to collect_longterm_unpinnable_folios()

[PATCH 14/25] mm/fbatch: no lru_add_drain() nor _all() for memfd_wait_for_pins()

[PATCH 15/25] mm/fbatch: remove shake_folio() shake_page() from memory-failure

[PATCH 16/25] mm/fbatch: remove lru_cache_disable(() from NUMA folio migration

[PATCH 17/25] mm/fbatch: no lru_cache_disable() in __alloc_contig_migrate_range()

[PATCH 18/25] mm/fbatch: remove lru_add_drain() and _all() calls from various

[PATCH 19/25] mm/fbatch: vm/stat_refresh include lru_add_drain() on each cpu

[PATCH 20/25] s390/fbatch: no lru_add_drain_all() in s390_wiggle_split_folio()

[PATCH 21/25] block/fbatch: no lru_add_drain_all() in invalidate_bdev()

[PATCH 22/25] fs/fbatch: drop_caches invalidate_bh_lrus() not lru_add_drain_all()

[PATCH 23/25] fs,mm/fbatch: use invalidate_bh_lrus() not invalidate_bh_lrus_cpu()

[PATCH 24/25] fs,mm/fbatch: lru_cache_disable() keep off buffer_head lrus only

[PATCH 25/25] mm/fbatch: move lru_add_drain_all() declaration to mm/internal.h

Session 2026-08-24

Passed

ID (for dev)	77875aef-54e9-44c0-9c9e-40a2da8b2352
Status	finished
Triaged	OK [Log] [Trajectory]
Execution Log	[Link]

Test	Base	Patched	Verdict
[KASAN] Build Base	4352b8aee98005853aa63f57d6377282de17a33f [Config]		passed [Log]
[KASAN] Boot test: Base	4352b8aee98005853aa63f57d6377282de17a33f [Config]		passed [Log]
[KASAN] Build Patched		4352b8aee98005853aa63f57d6377282de17a33f [Config] [patched]	passed [Log]
[KASAN] Boot test: Patched		4352b8aee98005853aa63f57d6377282de17a33f [Config] [patched]	passed [Log]
[KASAN] Fuzz	4352b8aee98005853aa63f57d6377282de17a33f [Config]	4352b8aee98005853aa63f57d6377282de17a33f [Config] [patched]	passed [Log] [Artifacts]

Patches (25)

Series Summary

Sessions

Session 2026-08-24