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q4GmWzdUECsY/I7Gtr1pYWmOaZ40TtSsrB2v4h6Ks74XG1veLb7GaRuNIuWuJVbRyoSqvRTg4Sqn6s7xodRHfS5DZSkYpUN019ii+aB7tlsrTZoMZJQbeE54N4J+XC25ddMlO/CtqVtUOlPTSSvQoc++69lZi5by5U5PTaTaccM6RXzjzfP/wEMT1VH+NKO71zI7lMcsBPMlsboC3bj1r8ygCJ5mbnv5tGQy+fcIMsuEFd3msjQIU/X9sDx8Q+Jj86loypwL4I68K7xRcS6IvbKMtG5JdQauUdEMkgrfmpwZp2LfS9XYNROlV1PB8JRaeR1CTXsw23eY0b1W86PwwTQdlV8dH/nzTkqYEX9bUhQ7EXAKLwqw/FplLidW1HTTkg61tftPMd7MCLKDqqAuKCKxmFpDVrKsycYZr4JnIpgBBvZVdCnMOglizlibS6SmOG0HqAXDvdIo4F+VA7V2kHuKykY5/JCzHmWbiwIlZg9sSJwySVm7Cxc4BaOd30K98/Tet1i82l2uxrLyOPuacw1iOghKV1fZ0HRlKzOEUnL6nTQOdf5QupNEluaUr0gw9rkXC8QMvSkaLrwTcLDZmdDnNT9nlXnc5qtoPkf88v6R4yilp8lgqVHUNuw== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Oct 29, 2025 at 09:06:45PM +0100, Vlastimil Babka wrote: > On 10/29/25 21:06, Vlastimil Babka wrote: > > On 10/27/25 07:12, Harry Yoo wrote: > >>> @@ -8549,6 +8559,74 @@ static struct kmem_cache * __init bootstrap(struct kmem_cache *static_cache) > >>> return s; > >>> } > >>> > >>> +/* > >>> + * Finish the sheaves initialization done normally by init_percpu_sheaves() and > >>> + * init_kmem_cache_nodes(). For normal kmalloc caches we have to bootstrap it > >>> + * since sheaves and barns are allocated by kmalloc. > >>> + */ > >>> +static void __init bootstrap_cache_sheaves(struct kmem_cache *s) > >>> +{ > >>> + struct kmem_cache_args empty_args = {}; > >>> + unsigned int capacity; > >>> + bool failed = false; > >>> + int node, cpu; > >>> + > >>> + capacity = calculate_sheaf_capacity(s, &empty_args); > >>> + > >>> + /* capacity can be 0 due to debugging or SLUB_TINY */ > >>> + if (!capacity) > >>> + return; > >> > >> I think pcs->main should still be !NULL in this case? > > > > It will remain to be set to bootstrap_sheaf, and with s->sheaf_capacity > > ... s->sheaf_capacity remaining 0 > > > things will continue to work. Oh right. it's set to bootstrap_sheaf in init_percpu_sheaves() before bootstrap_cache_sheaves() is called. Looks good then! -- Cheers, Harry / Hyeonggon