Function report |
Source Code:kernel\groups.c |
Create Date:2022-07-28 09:35:01 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:groups_alloc
Proto:struct group_info *groups_alloc(int gidsetsize)
Type:struct group_info
Parameter:
Type | Parameter | Name |
---|---|---|
int | gidsetsize |
20 | len = sizeof(structgroup_info) + sizeof(kgid_t) * gidsetsize |
21 | gi = Allocation memory |
22 | If Not gi Then gi = __vmalloc(len, GFP_KERNEL_ACCOUNT, PAGE_KERNEL) |
24 | If Not gi Then Return NULL |
27 | atomic_set( & usage, 1) |
28 | ngroups = gidsetsize |
29 | Return gi |
Name | Describe |
---|---|
SYSCALL_DEFINE2 | SMP: Our groups are copy-on-write. We can set them safely* without another task interfering. |
SYSCALL_DEFINE2 |
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