Function report |
Source Code:mm\mmap.c |
Create Date:2022-07-28 14:49:48 |
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
| home page | Tree |
| Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:__vm_munmap
Proto:static int __vm_munmap(unsigned long start, size_t len, bool downgrade)
Type:int
Parameter:
| Type | Parameter | Name |
|---|---|---|
| unsigned long | start | |
| size_t | len | |
| bool | downgrade |
| 2833 | If lock for writing Then Return -EINTR |
| 2836 |
ret = Munmap is split into 2 main parts -- this part which finds* what needs doing, and the areas themselves, which do the* work. This now handles partial unmappings.* Jeremy Fitzhardinge |
| 2842 | If ret == 1 Then |
| 2843 | lease a read lock |
| 2844 | ret = 0 |
| 2845 | Else lease a write lock |
| 2848 | userfaultfd_unmap_complete(mm, & uf) |
| 2849 | Return ret |
| Name | Describe |
|---|---|
| vm_munmap | |
| SYSCALL_DEFINE2 |
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