Function report |
Source Code:mm\mempolicy.c |
Create Date:2022-07-28 15:33:32 |
Last Modify:2020-03-17 22:28:11 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:Replace a policy range.
Proto:static int shared_policy_replace(struct shared_policy *sp, unsigned long start, unsigned long end, struct sp_node *new)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
struct shared_policy * | sp | |
unsigned long | start | |
unsigned long | end | |
struct sp_node * | new |
2530 | ret = 0 |
2532 | restart : |
2533 | write_lock( & lock) |
2534 | n = lookup first element intersecting start-end. Caller holds sp->lock for* reading or for writing |
2543 | Else |
2550 | atomic_set( & refcnt, 1) |
2551 | sp_node_init(n_new, end, end, mpol_new) |
2554 | n_new = NULL |
2555 | mpol_new = NULL |
2556 | Break |
2560 | If Not next Then Break |
2566 | write_unlock( & lock) |
2567 | ret = 0 |
2569 | err_out : |
2572 | If n_new Then kmem_cache_free(sn_cache, n_new) |
2575 | Return ret |
2577 | alloc_new : |
2578 | write_unlock( & lock) |
2580 | n_new = kmem_cache_alloc(sn_cache, GFP_KERNEL) |
2583 | mpol_new = kmem_cache_alloc(policy_cache, GFP_KERNEL) |
2586 | Go to restart |
Name | Describe |
---|---|
mpol_set_shared_policy |
Source code conversion tool public plug-in interface | X |
---|---|
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