diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/include/linux/slab_def.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/include/linux/slab_def.h')
-rw-r--r-- | kernel/include/linux/slab_def.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/kernel/include/linux/slab_def.h b/kernel/include/linux/slab_def.h new file mode 100644 index 000000000..33d049066 --- /dev/null +++ b/kernel/include/linux/slab_def.h @@ -0,0 +1,79 @@ +#ifndef _LINUX_SLAB_DEF_H +#define _LINUX_SLAB_DEF_H + +#include <linux/reciprocal_div.h> + +/* + * Definitions unique to the original Linux SLAB allocator. + */ + +struct kmem_cache { + struct array_cache __percpu *cpu_cache; + +/* 1) Cache tunables. Protected by slab_mutex */ + unsigned int batchcount; + unsigned int limit; + unsigned int shared; + + unsigned int size; + struct reciprocal_value reciprocal_buffer_size; +/* 2) touched by every alloc & free from the backend */ + + unsigned int flags; /* constant flags */ + unsigned int num; /* # of objs per slab */ + +/* 3) cache_grow/shrink */ + /* order of pgs per slab (2^n) */ + unsigned int gfporder; + + /* force GFP flags, e.g. GFP_DMA */ + gfp_t allocflags; + + size_t colour; /* cache colouring range */ + unsigned int colour_off; /* colour offset */ + struct kmem_cache *freelist_cache; + unsigned int freelist_size; + + /* constructor func */ + void (*ctor)(void *obj); + +/* 4) cache creation/removal */ + const char *name; + struct list_head list; + int refcount; + int object_size; + int align; + +/* 5) statistics */ +#ifdef CONFIG_DEBUG_SLAB + unsigned long num_active; + unsigned long num_allocations; + unsigned long high_mark; + unsigned long grown; + unsigned long reaped; + unsigned long errors; + unsigned long max_freeable; + unsigned long node_allocs; + unsigned long node_frees; + unsigned long node_overflow; + atomic_t allochit; + atomic_t allocmiss; + atomic_t freehit; + atomic_t freemiss; + + /* + * If debugging is enabled, then the allocator can add additional + * fields and/or padding to every object. size contains the total + * object size including these internal fields, the following two + * variables contain the offset to the user object and its size. + */ + int obj_offset; +#endif /* CONFIG_DEBUG_SLAB */ +#ifdef CONFIG_MEMCG_KMEM + struct memcg_cache_params memcg_params; +#endif + + struct kmem_cache_node *node[MAX_NUMNODES]; +}; + +#endif /* _LINUX_SLAB_DEF_H */ |