Function report |
Source Code:mm\util.c |
Create Date:2022-07-28 14:21:49 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Name:__account_locked_vm - account locked pages to an mm's locked_vm*@mm: mm to account against*@pages: number of pages to account*@inc: %true if @pages should be considered positive, %false if not*@task: task used to check RLIMIT_MEMLOCK*@bypass_rlim: %true
Proto:int __account_locked_vm(struct mm_struct *mm, unsigned long pages, bool inc, struct task_struct *task, bool bypass_rlim)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
struct mm_struct * | mm | |
unsigned long | pages | |
bool | inc | |
struct task_struct * | task | |
bool | bypass_rlim |
438 | ret = 0 |
440 | lockdep_assert_held_write( & mmap_sem) |
443 | If inc Then |
451 | Else |
452 | WARN_ON_ONCE(pages > locked_vm) |
456 | pr_debug("%s: [%d] caller %ps %c%lu %lu/%lu%s\n", __func__, pid, (void * )_RET_IP_, (inc) ? '+' : '-', pages << PAGE_SHIFT determines the page size , locked_vm << PAGE_SHIFT determines the page size , task_rlimit(task, RLIMIT_MEMLOCK), ret ? " - exceeded" : "") |
461 | Return ret |
Name | Describe |
---|---|
account_locked_vm | account_locked_vm - account locked pages to an mm's locked_vm*@mm: mm to account against, may be NULL*@pages: number of pages to account*@inc: %true if @pages should be considered positive, %false if not* Assumes a non-NULL @mm is valid (i |
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