Function report |
Source Code:kernel\resource.c |
Create Date:2022-07-28 09:05:14 |
Last Modify:2022-05-22 11:14:39 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:allocate_resource - allocate a slot in the resource tree given range & alignment
Proto:static int reallocate_resource(struct resource *root, struct resource *old, resource_size_t newsize, struct resource_constraint *constraint)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
struct resource * | root | |
struct resource * | old | |
resource_size_t | newsize | |
struct resource_constraint * | constraint |
672 | err = 0 |
676 | write_lock( & resource_lock) |
678 | If err = Find empty slot in the resource tree with the given range and* alignment constraints Then Go to out |
681 | If True iff r1 completely contains r2 Then |
687 | If child Then |
692 | If True iff r1 completely contains r2 Then |
695 | Else |
696 | __release_resource(old, true) |
701 | out : |
702 | write_unlock( & resource_lock) |
703 | Return err |
Name | Describe |
---|---|
allocate_resource | allocate_resource - allocate empty slot in the resource tree given range & alignment |
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