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ceph: move to a dedicated slabcache for mds requests

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On my machine (x86_64) this struct is 952 bytes, which gets rounded up
to 1024 by kmalloc. Move this to a dedicated slabcache, so we can
allocate them without the extra 72 bytes of overhead per.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Jeff Layton
2020-02-17 18:38:37 -05:00
committed by Ilya Dryomov
parent c36d641493
commit 058daab79d
3 changed files with 12 additions and 2 deletions
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include/linux/ceph/libceph.h
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@@ -272,6 +272,7 @@ extern struct kmem_cache *ceph_cap_flush_cachep;
extern struct kmem_cache *ceph_dentry_cachep;
extern struct kmem_cache *ceph_file_cachep;
extern struct kmem_cache *ceph_dir_file_cachep;
extern struct kmem_cache *ceph_mds_request_cachep;
/* ceph_common.c */
extern bool libceph_compatible(void *data);