Function report |
Source Code:mm\slab.c |
Create Date:2022-07-28 15:46:14 |
| Last Modify:2022-05-23 17:02:55 | Copyright©Brick |
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| Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:enable_cpucache
Proto:static int enable_cpucache(struct kmem_cache *cachep, gfp_t gfp)
Type:int
Parameter:
| Type | Parameter | Name |
|---|---|---|
| struct kmem_cache * | cachep | |
| gfp_t | gfp |
| 3920 | limit = 0 |
| 3921 | shared = 0 |
| 3922 | batchcount = 0 |
| 3924 | err = cache_random_seq_create(cachep, num, gfp) |
| 3928 | If Not is_root_cache(cachep) Then |
| 3929 | root = memcg_root_cache(cachep) |
| 3932 | batchcount = batchcount |
| 3935 | If limit && shared && batchcount Then Go to skip_setup |
| 3946 | If The size of an object including metadata > 131072 Then limit = 1 |
| 3948 | Else if The size of an object including metadata > PAGE_SIZE Then limit = 8 |
| 3950 | Else if The size of an object including metadata > 1024 Then limit = 24 |
| 3952 | Else if The size of an object including metadata > 256 Then limit = 54 |
| 3954 | Else limit = 120 |
| 3966 | shared = 0 |
| 3967 | If The size of an object including metadata <= PAGE_SIZE && num_possible_cpus() > 1 Then shared = 8 |
| 3978 | batchcount = (limit + 1) / 2 |
| 3979 | skip_setup : |
| 3980 | err = do_tune_cpucache(cachep, limit, batchcount, shared, gfp) |
| 3981 | end : |
| 3982 | If err Then pr_err("enable_cpucache failed for %s, error %d\n", Name (only for display!) , - err) |
| 3985 | Return err |
| Name | Describe |
|---|---|
| kmem_cache_init_late | |
| setup_cpu_cache |
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|---|---|
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