diff options
| author | Matthew Ahrens <[email protected]> | 2020-07-24 09:39:26 -0700 |
|---|---|---|
| committer | GitHub <[email protected]> | 2020-07-24 09:39:26 -0700 |
| commit | 4fbdb10c7b94439694ad18409662210099e09cb4 (patch) | |
| tree | 938e4174b454237def92fbc8c604ca346493ea3d /include/os/linux/spl | |
| parent | 02fced3067798cbc5472f180e4c6d36f4c441a77 (diff) | |
remove kmem_cache module parameter KMC_EXPIRE_AGE
By default, `spl_kmem_cache_expire` is `KMC_EXPIRE_MEM`, meaning that
objects will be removed from kmem cache magazines by
`spl_kmem_cache_reap_now()`.
There is also a module parameter to change this to `KMC_EXPIRE_AGE`,
which establishes a maximum lifetime for objects to stay in the
magazine. This setting has rarely, if ever, been used, and is not
regularly tested.
This commit removes the code for `KMC_EXPIRE_AGE`, and associated module
parameters.
Additionally, the unused module parameter
`spl_kmem_cache_obj_per_slab_min` is removed.
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Matthew Ahrens <[email protected]>
Closes #10608
Diffstat (limited to 'include/os/linux/spl')
| -rw-r--r-- | include/os/linux/spl/sys/kmem_cache.h | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/include/os/linux/spl/sys/kmem_cache.h b/include/os/linux/spl/sys/kmem_cache.h index 30d2dd5ed..618f32b69 100644 --- a/include/os/linux/spl/sys/kmem_cache.h +++ b/include/os/linux/spl/sys/kmem_cache.h @@ -85,12 +85,8 @@ typedef enum kmem_cbrc { #define KMC_REAP_CHUNK INT_MAX #define KMC_DEFAULT_SEEKS 1 -#define KMC_EXPIRE_AGE 0x1 /* Due to age */ -#define KMC_EXPIRE_MEM 0x2 /* Due to low memory */ - #define KMC_RECLAIM_ONCE 0x1 /* Force a single shrinker pass */ -extern unsigned int spl_kmem_cache_expire; extern struct list_head spl_kmem_cache_list; extern struct rw_semaphore spl_kmem_cache_sem; @@ -99,9 +95,7 @@ extern struct rw_semaphore spl_kmem_cache_sem; #define SKS_MAGIC 0x22222222 #define SKC_MAGIC 0x2c2c2c2c -#define SPL_KMEM_CACHE_DELAY 15 /* Minimum slab release age */ #define SPL_KMEM_CACHE_OBJ_PER_SLAB 8 /* Target objects per slab */ -#define SPL_KMEM_CACHE_OBJ_PER_SLAB_MIN 1 /* Minimum objects per slab */ #define SPL_KMEM_CACHE_ALIGN 8 /* Default object alignment */ #ifdef _LP64 #define SPL_KMEM_CACHE_MAX_SIZE 32 /* Max slab size in MB */ @@ -131,7 +125,6 @@ typedef struct spl_kmem_magazine { uint32_t skm_size; /* Magazine size */ uint32_t skm_refill; /* Batch refill size */ struct spl_kmem_cache *skm_cache; /* Owned by cache */ - unsigned long skm_age; /* Last cache access */ unsigned int skm_cpu; /* Owned by cpu */ void *skm_objs[0]; /* Object pointers */ } spl_kmem_magazine_t; @@ -181,7 +174,6 @@ typedef struct spl_kmem_cache { uint32_t skc_obj_align; /* Object alignment */ uint32_t skc_slab_objs; /* Objects per slab */ uint32_t skc_slab_size; /* Slab size */ - uint32_t skc_delay; /* Slab reclaim interval */ atomic_t skc_ref; /* Ref count callers */ taskqid_t skc_taskqid; /* Slab reclaim task */ struct list_head skc_list; /* List of caches linkage */ |