Subject	mm/slab: reduce slab accounting memory overhead by allocating slabobj_ext metadata within unsed slab space
Author	harry.yoo@oracle.com
Date	2026-01-05 08:02:23 +0000 UTC
Version	Version 1 Version 1 Version 1
Cc	adilger.kernel@dilger.ca akpm@linux-foundation.org andreyknvl@gmail.com cgroups@vger.kernel.org cl@gentwo.org dvyukov@google.com glider@google.com hannes@cmpxchg.org hao.li@linux.dev harry.yoo@oracle.com linux-ext4@vger.kernel.org linux-kernel@vger.kernel.org linux-mm@kvack.org mhocko@kernel.org muchun.song@linux.dev rientjes@google.com roman.gushchin@linux.dev ryabinin.a.a@gmail.com shakeel.butt@linux.dev stable@vger.kernel.org surenb@google.com tytso@mit.edu vbabka@suse.cz vincenzo.frascino@arm.com yeoreum.yun@arm.com

Patches (8)

Name	Content [All]
[PATCH V5 1/8] mm/slab: use unsigned long for orig_size to ensure proper metadata align	[Body]
[PATCH V5 2/8] mm/slab: allow specifying free pointer offset when using constructor	[Body]
[PATCH V5 3/8] ext4: specify the free pointer offset for ext4_inode_cache	[Body]
[PATCH V5 4/8] mm/slab: abstract slabobj_ext access via new slab_obj_ext() helper	[Body]
[PATCH V5 5/8] mm/slab: use stride to access slabobj_ext	[Body]
[PATCH V5 6/8] mm/memcontrol,alloc_tag: handle slabobj_ext access under KASAN poison	[Body]
[PATCH V5 7/8] mm/slab: save memory by allocating slabobj_ext array from leftover	[Body]
[PATCH V5 8/8] mm/slab: place slabobj_ext metadata in unused space within s->size	[Body]

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