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| author | Ming Lei <ming.lei@redhat.com> | 2025-02-28 21:26:56 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-03-22 12:54:21 -0700 |
| commit | 7184e996107c37036c0d209ec993589513332fae (patch) | |
| tree | 46b141bdc733a1957b45ac5fcb0c11a0ea9b169e /block | |
| parent | d1ceef54b23967a0face90d9d58931a5b9dc1f88 (diff) | |
| download | linux-7184e996107c37036c0d209ec993589513332fae.tar.gz linux-7184e996107c37036c0d209ec993589513332fae.tar.bz2 linux-7184e996107c37036c0d209ec993589513332fae.zip | |
block: fix 'kmem_cache of name 'bio-108' already exists'
[ Upstream commit b654f7a51ffb386131de42aa98ed831f8c126546 ]
Device mapper bioset often has big bio_slab size, which can be more than
1000, then 8byte can't hold the slab name any more, cause the kmem_cache
allocation warning of 'kmem_cache of name 'bio-108' already exists'.
Fix the warning by extending bio_slab->name to 12 bytes, but fix output
of /proc/slabinfo
Reported-by: Guangwu Zhang <guazhang@redhat.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250228132656.2838008-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'block')
| -rw-r--r-- | block/bio.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/block/bio.c b/block/bio.c index ac4d77c88932..43d4ae26f475 100644 --- a/block/bio.c +++ b/block/bio.c @@ -77,7 +77,7 @@ struct bio_slab { struct kmem_cache *slab; unsigned int slab_ref; unsigned int slab_size; - char name[8]; + char name[12]; }; static DEFINE_MUTEX(bio_slab_lock); static DEFINE_XARRAY(bio_slabs); |