Function report |
Source Code:mm\mempolicy.c |
Create Date:2022-07-28 15:31:23 |
Last Modify:2020-03-17 22:28:11 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:Step 2: apply policy to a range and do splits.
Proto:static int mbind_range(struct mm_struct *mm, unsigned long start, unsigned long end, struct mempolicy *new_pol)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
struct mm_struct * | mm | |
unsigned long | start | |
unsigned long | end | |
struct mempolicy * | new_pol |
753 | err = 0 |
762 | If start > Our start address within vm_mm. Then prev = vma |
765 | When vma && Our start address within vm_mm. < end cycle |
767 | vmstart = max - return maximum of two values of the same or compatible types*@x: first value*@y: second value(start, Our start address within vm_mm. ) |
768 | vmend = min - return minimum of two values of the same or compatible types*@x: first value*@y: second value(end, The first byte after our end addresswithin vm_mm. ) |
770 | If mpol_equal(vma_policy(vma), new_pol) Then Continue |
773 | pgoff = Offset (within vm_file) in PAGE_SIZEunits + ( vmstart - Our start address within vm_mm. >> PAGE_SHIFT determines the page size ) |
775 | prev = Given a mapping request (addr,end,vm_flags,file,pgoff), figure out* whether that can be merged with its predecessor or its successor |
778 | If prev Then |
781 | If mpol_equal(vma_policy(vma), new_pol) Then Continue |
784 | Go to replace |
786 | If Our start address within vm_mm. != vmstart Then |
791 | If The first byte after our end addresswithin vm_mm. != vmend Then |
796 | replace : |
802 | out : |
803 | Return err |
Name | Describe |
---|---|
do_mbind |
Source code conversion tool public plug-in interface | X |
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