Function report |
Source Code:mm\migrate.c |
Create Date:2022-07-28 15:59:45 |
Last Modify:2022-05-20 09:53:13 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:Move a list of pages in the address space of the currently executing* process.
Proto:static int kernel_move_pages(pid_t pid, unsigned long nr_pages, const void __user *__user *pages, const int __user *nodes, int __user *status, int flags)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
pid_t | pid | |
unsigned long | nr_pages | |
const void __user *__user * | pages | |
const int __user * | nodes | |
int __user * | status | |
int | flags |
1793 | If flags & ~(Move pages owned by this process to conformto policy | Move every page to conform to policy ) Then Return -EINVAL |
1796 | If flags & Move every page to conform to policy && Not Check operation authority Then Return -EPERM |
1801 | task = If pid Then find_task_by_vpid(pid) Else current process |
1802 | If Not task Then |
1804 | Return -ESRCH |
1806 | get_task_struct(task) |
1812 | If Not ptrace_may_access(task, PTRACE_MODE_READ_REALCREDS) Then |
1815 | Go to out |
1819 | err = security_task_movememory(task) |
1825 | put_task_struct(task) |
1830 | If nodes Then err = Migrate an array of page address onto an array of nodes and fill* the corresponding array of status. |
1833 | Else err = Determine the nodes of a user array of pages and store it in* a user array of status. |
1837 | Return err |
1839 | out : |
1840 | put_task_struct(task) |
1841 | Return err |
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