Function report |
Source Code:kernel\user.c |
Create Date:2022-07-28 09:14:02 |
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
| home page | Tree |
| Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:Locate the user_struct for the passed UID. If found, take a ref on it. The* caller must undo that ref with free_uid().* If the user_struct could not be found, return NULL.
Proto:struct user_struct *find_user(kuid_t uid)
Type:struct user_struct
Parameter:
| Type | Parameter | Name |
|---|---|---|
| kuid_t | uid |
| 158 | spin_lock_irqsave( & The uidhash_lock is mostly taken from process context, but it is* occasionally also taken from softirq/tasklet context, when* task-structs get RCU-freed, flags) |
| 159 | ret = uid_hash_find(uid, uidhashentry(uid)) |
| 160 | spin_unlock_irqrestore( & The uidhash_lock is mostly taken from process context, but it is* occasionally also taken from softirq/tasklet context, when* task-structs get RCU-freed, flags) |
| 161 | Return ret |
| Name | Describe |
|---|---|
| SYSCALL_DEFINE3 | |
| SYSCALL_DEFINE2 | Ugh. To avoid negative return values, "getpriority()" will* not return the normal nice-value, but a negated value that* has been offset by 20 (ie it returns 40..1 instead of -20..19)* to stay compatible. |
| SYSCALL_DEFINE2 |
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